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Single channel DDR2 but can run Dual channel

Q: Single channel DDR2 but can run Dual channel

Hi,

My system is abit IP35 quad core 2 q6600 running 4gb of RAM, all the same spec.

Win 7 64bit and Win 7 32 bit partitions.

I recently added 64 bit partition to run more RAM, so the slots 2 and 4 will have gotton dust in it as it was unused for ages.

If I wiggle the slot 4 in sometimes I get 8gb and dual channel RAM.

At the moment I have single channel and on 4gb, does that mean I am using 1gb of each of the 4 slots.

The ram is ddr2 2gb sticks x 4.

Do I need to clean the slot?

also Java based apps are crashing on 32bit and 64 bit.

Just clean the slot? what with, whats the best approach?

Thanks

Neil.

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Preferred Solution: Single channel DDR2 but can run Dual channel

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A: Single channel DDR2 but can run Dual channel

So magically I have 8gb and dual channel back.

But on the SPD tab the program only shows 2 slots in use.

Whats going on in my PC is it working like it should?

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I'm upgrading the RAM on my P5Q Pro motherboard... Right now I have 3 GB total, 1 GB on slot 2 and 2GB on slot 4 running in dual channel mode.

Today I ordered a new 2GB stick. So I'll have 3 sticks of RAM on my motherboard, for a total of 5GB.

Considering that I will run 2+2GB in dual channel mode, if I add the third 1GB stick to the motherboard, will my RAM run in dual channel mode?

What is better in terms of performance? only 2+2GB or 2+2+1GB?

A:DDR2: dual or single channel?

Those two 2GB sticks will run in dual channel if you install them in the correct slots, usually the same color. Adding the 1GB stick will not harm this.

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Hi, can anyone tell me if there could be a benefit buying 4 x 1 GB DDR2-800 DIMMs, as opposed to 2 x 2 GB DDR2-800 DIMMs? I know the difference between single channel and dual channel is pretty huge, but I'm not sure if it would matter going to quad from dual. I haven't found anything that really helps on the internet.

The reason I am asking is because 4 x 1GB DIMMS are about 25% cheaper than 2 x 2GB DIMMS, however for future upgrade purposes I will have to get rid of DIMMS with the 1 GB sticks, where with the 2 x 2GB I wouldn't. I think the differences between saving now and saving later when upgrading is negligible...so if there is a noticeable performance difference that would help choose.

Thanks!
 

A:dual channel and quad channel DDR2

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Hey everyone

I got a bit of a problem here, and I'm at a loss on what to do to fix it.

Some background about the situation would be a good place to start. A few days ago I came home from work and found my PC in a "lights are on, but no one's home" state. The power button was lit up and the fans were in motion, but the monitors were in power saver mode, not the normal on state with the blank screen saver. I tried moving the mouse, mashing on the keyboard but nothing happened. So I reset the machine and it just went to a blank screen, no beeps, or messages, just the same ole lights on no ones home deal again.

Now before this I had been having memory problems, with blue screens saying "memory management" and "IRQL not less than or equal". So I thought it might be a bad strip of ram, and even bought two more strips to replace the ones I had removed. In the process of testing each strip I discovered that one was bad. (That was not the fix by the way)

After putting in the new ram in for a total of 8GB's of ram (figured if I'm gonna buy new ram might as well increase the total amount) it booted up and no more blue screens after loading into windows, YaY it was fixed or so I thought. A few weeks later the above incident occurred and the only way to get the PC to boot up was to pull two strips of the ram and insert the remaining strips into slots 1 and 3 for a single channel configuration. Didn't matter which set of ram I used, ju... Read more

A:Dual Channel Suddenly Stopped Working, Only Single Channel Remains

Britton, go to the asus site for your motherboard. Download and install the latest drivers. Download a copy of your manual and review the bios settings. If need be manually input the correct timings for your ram. Also make sure to follow the ram installation documentation for which slots to use to enable dual channel.

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My spec is in my profile, but I will also list it here.... I just noticed today that my RAM was running Single Channel mode, so I thought I would change it to Dual Channel mode... so I did.

It completes the Windows XP loading screen, then reboots... constantly, until I change it back to Single Channel mode.

Is there something wrong with my RAM? or is it the motherboard? or my PSU not giving the mobo enough power? I dont have every power cable plugged in, I have a 20 pin ATX power in the 24 pin plug, and the 4 pin ATX power plug and a 4 pin molex cable plugged into the motherboard. Could this not be giving it enough power?
Many thanks, system spec =

AMD Athlon 64 4000+
DFI Lanparty UT nF4 Ultra-D
2 x 512mb Crucial Ballistix PC3200 DDR400
Connect 3D X1800XT 256Mb
2 HDD's etc.
Antec TrueBlue 480W PSU.
 

A:System reboots constantly, when I change my RAM from Single Channel to Dual Channel

Check your mobo manual, to see in which slots you need to put memory sticks to make it work in Dual Channel mode.
AFAIK you need 1 each of the same size/type in slots 1 and 3 (yellow) for DC.
 

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Single channel Nforce2 400 dethrones its dual channel stablemate

quote:
" ... ENTHUSIAST SITE amdmb.com discovered this unexpected anomaly, which could have far reaching Socket-A repercussions.

Soltek's bottom dollar SL-NV400-64 motherboard, which is based on the single channel nForce2 400 chipset, is the cause of all this news. What is amazing is that it beat Asus' dual channel flagship product - the A7N8X Deluxe, in the majority of benchmarks. Ryan Shrout, the amdmb.com reviewer, who put Soltek's motherboard through its paces, suggests that its performance lead in UT 2K3 is down to the additional overhead that a dual channel system board has to deal with. Looking at the rest of the results, I would apply that comment as a general across the board statement.

Soltek's motherboard retails at a new egg price of $76 - the version without LAN will apparently be sold for under $70. Asustek's $130 flagship adds an additional $54, which would buy you a Thoroughbred 1700+ and its cooling kit. Will this more for less attribute drive more enthusiasts to buy Soltek's better performing solution?

Soltek's overall performance lead is not earth shattering, but like everything else in this industry, perception is everything. Of the 14 benchmarks that were run, Soltek's board won 11 of them, drew 2, and lost only one. For the record:

Quake 3: Evenly matched results
UT 2K3: 5.5 to 11.1% lead
3D Mark 2K1: Wins by a nose
PC Mark... Read more

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I'm trying to decide what would give better performance, Dual Channeled 2x256 DDR400...or Single Channeled 2x256 DDR400 and 512 DDR2100 totalling 1gb RAM. I don't seem to notice much of a difference so far, but I haven't tried much. I figured I'd ask the pros at techspot for advice. :grinthumb
 

A:Dual Channel 2x256 DDR400 or Single Channel 1gb Mixed DDR RAM

& we are supposed to get your system specs how ? You could be using that Ram on a 600mhz Celeron for all we know.
 

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Would it just clock the ram down and if so would there be a huge performance hit?

Thanks,

Kevin
 

A:Dual-Channel Memory in Single-Channel Motherboard

They would work in a single channel motherboard, and it wouldn't effect the speed of the actual RAM however it would effect the overall speed because the memory wouldn't be able to send data back and forth as fast as it could in Dual-channel motherboards.
 

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I have a problem and I think it's memory related.

I read the post about "Dual-Channel Memory in Single-Channel Motherboard." But it didn't help, plus it was from 2005.

Here's my computer (it's old, I know. I don't have the money to upgrade all of it):
- Intel Pentium D 820 2.80GHz
- EVGA GeForce 7300 GS / 256MB GDDR2 / PCI Express
- Intel D101GGCL ATI Socket 775 MicroATX Motherboard
- 1 GB (2 x 512MB) PC3200 DDR 400MHz CL3 Memory
- Ultra 500-Watt power supply
- Windows XP 32bit

I recently bought a memory upgrade:
2GB (2 x 1GB) 184-Pin DDR SDRAM DDR 400 (PC 3200) Dual Channel Kit

My computer worked fine (minus the small memory amount) before I installed the new memory. After I installed the new RAM, my computer posted, got to the windows splash screen, got to the log in screen, let me log in, then loaded the OS. While loading the OS and launching other start-up programs, my computer froze. I restarted many times and it fixed it. It never got past a few seconds after loading the OS and a few programs.

I reinstalled my old memory and it worked fine again without a hitch.

What is the problem? Is it the fact that the new memory is dual channel and the motherboard is single channel? I re-read the specs of my mobo and it said that dual channel is optional. However when I go to the BOIS menu (F2 on startup) it says "single channel mode" whith the new dual channel kit is in. Is there something in the BIOS I should cha... Read more

A:Dual Channel memory in single channel board?

Well, I can say I solved my own problem.

After I spent the last 4 hours trying to find the problem. I ran a bunch of mem tests, cleaned the mem slots, etc... It turns out it wasn't a hardware issue at all. I was wiggling my mouse on start up and noted the time it froze... and every time it froze an application was launching in the system tray.

Turns out it was Norton F'ing Anti Virus....

The second it launched the computer froze. So I booted in safe mode and disabled the start up and all other functions of Norton. Rebooted in normal mode, and sure enough, it worked! Without a hitch!

Now here comes the Beach of it. Since I couldn't uninstall Norton because I disabled it (i.e. nothing would run because all the extensions, shells and services for it were dead), I rebooted in safe mode to uninstall, BUT Norton doesn't work in safe mode... WHAT!? The damn program specifically states in a condescending dialog box that you "must reboot in normal mode to access Norton... blah blah blah"

What kind of Virus program doesn't let you access it in safe mode? Isn't that the point, to run a virus scan in safe mode? Piece of crap! But anyways, I digress.

So now I finagled a way to run in normal mode without Norton launching to uninstall it. Uninstalling as we speak, actually.

*SO*

To answer my own question:
Yes, dual channel kits work in single channel boards (Just make sure you uninstall Norton before you put the new RAM in, haha... Read more

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Hi.. So as usual im an idiot and i looked into my case and am still debating if my ram really should sit right next to eachother and i started Speccy and it said that i had single channel ram 2 different channels with 16GB total. I got confused becouse the motherboard manual said i should put the ram like i did.. So now i moved one ramstick, Whent into bios to check if everything was working like it should and now i have dual channel 16GB ram 8x2.
This started a question.. What performance boosts does dualchannel give over single channel.. I know its better but just. In what cases will it be "better" and will you notice it? And in witch scenario will you notice it?

A:Single channel VS Dual Channel RAM performance boost?

almost all mother boards that have 4 ram slots have colour coding. the 2 the same colour, normally a space in between is the dual channel setup.

dual channel effectively doubles the memory bandwidth and halves the cache.

in real world terms youll get a 5-20% performance increase with dual channel when running bench marks.. you probably wont notice it in terms of speedyness though.

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Hi guys,
I want to purchase more ram sticks for my desktop. It already has 3GB in it. 2x1GB sticks and 2x512MB sticks. I would like to take it all the way to 4GB. If I replace the two 512mb sticks am I better off getting a matched pair of sticks for dual channel. A matched pair in most stores seems to be more expensive than just buying two sticks of the same type. What is the difference? My motherboard does support dual by the way.
I think when I bought the two 1GB sticks I just bought 2 of the same make in pc world, but not a matching pair.
I would like to know, does it really matter?
Thanks.

Posted via Mobile Device
 

A:Solved: RAM choices. Dual channel vs single channel.

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Hi, I currently have 2x2GB Corsair DDR3 1333MHz RAM which I had bought around 3 years ago. I am currently thinking of upgrading to 8GB. However, my vendor tells me that 2GB sticks are no longer available for Corsair and that I have to either get a 4GB or 8GB stick.

My current 2x2GB runs in dual-channel mode. If I buy an additional 4GB stick, it will run in single-channel. I use the desktop mainly for gaming purposes. So, I just need to know if mixing 2 modes will cause any problems?

A:Any drawbacks to mixing single-channel and dual-channel for RAM?

Shouldn't cause any problems assuming it is otherwise compatible.

The difference between single and dual channel is minimal for most usage scenarios. If the RAM you have now magically went to single channel 5 minutes from now, you likely wouldn't notice.

You could discard the 2 x 2 you have now and replace with 2 x 4 and get dual channel, but nothing at all wrong with instead spending that money on cigareets, whiskey, and wild, wild women. At least you'd have something to show for it.

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I'm facing an unusual predicament at the moment. I currently have Windows 7 Ultimate installed on my custom tower. The tower runs an Intel Pentium 4 2.80 ghz, the OS is 32 bits, and initially was installed with one gig of RAM (2 512MB sticks) dual channel (DDR [1]).

Windows 7 wasn't sluggish, surprisingly, and I used the upgrade advisor to determine if my system was ready and I found it was. I was hoping to add a little "juice" so I tore into an old system and found a 1GB stick of DDR RAM. Now, I can change the dual channel configuration to single channel operation and run 2Gigs of RAM or I can keep the dual channel at 1Gig.

I've read on Tom's Hardware that the difference wasn't noticeable in dual vs. single but I also know that my processor was built for dual channel. Are there any recommendations? Make the single channel upgrade or keep the dual channel configuration?

At some point I will likely purchase another chip but for the time being I'm curious about anyone who has been in my position or knows memory well enough.

Thanks for any input!
 

A:Solved: Dual Channel/Single Channel RAM Question

depends on you applications. When math is very important, dual channel might out weigh more RAM. If the system is generally sluggish, then more RAM is more important than dual channel.

Honestly, With Vista/ 7... I'd bump to 2GB period.
 

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This is probly a very simple question, but i'm after converting my ACER Aspire 5600 laptop from using Dual Channel RAM to Single Channel. I've been told you can do this in the BIOS, but i'm not exacly sure how. I've had a breif look on google but can't seem to find anything of any help.

Thanks a lot,
- Lee
 

A:Solved: Converting Dual Channel to Single Channel with RAM.

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hi all,

recently it came to my notice that i was running my RAM on single channel mode (2x2gb) on my dh67bl mobo. i saw it in cpu z and it showed single channel.

So, i changed my ram and placed it in identical slots and now the Cpu z shows dual channel RAM. but i don't see any visible difference in performance.

Why is it so? is there any performance difference in running the RAM in dual channel / single channel?

kindly advice,
regards,

Ray

A:RAM: Single Channel to Dual Channel.....no difference?

Hi Ray,

By placing your RAM into dual channel mode, you have effectively doubled its bandwidth, meaning that twice as much data can be transferred at a given point in time.

There should, in theory, be a noticeable difference between single and dual channel mode. However, this depends on the application. For many programs, such as Office (Word, Excel, etc), there will be a slight difference but not as much as you will see with graphics editing or movie conversion.

What is your current WEI score for the memory component? Rerun the assessment and you should see an improvement in this value.

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My current computer, which I bought late 2004, came with 512MB dual-channel RAM. Because of the 70 updates to Win XP that have occurred since then, with their attendant security crap that burdens the system, I decided today to double my RAM to 1GB. I did that by buying a single 512MB PC 3200 DIMM.

However, my PC has 2 pairs of memory slots. The original 512MB were installed as two 256MB DIMMs, one in one slot in each pair of slots so it was accessed as "dual-channel" RAM. My ASUS MoBo book says that if you insert a SINGLE DIMM in any slot, the entire memory will be addressed as single-channel. So my question is, what's the difference in speed between dual- and single-channel memory? Am I cheating my computer out of higher memory speed by installing a single 512MB DIMM vs. using two 256MB DIMMs which would run as dual-channel memory?
 

A:Dual-channel vs. Single-channel memory

Yep, although the actual effect may not be that noticeable. You are cutting the memory bandwidth in half.
 

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Will dual channel RAM work in a single channel RAM motherboard?
 

A:Dual channel RAM in single channel mobo

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hello everyone this is my first post. any help would greatly be appreciated.

Well my question is can dual channel and single channel be used at the same time? My abit board supports single and dual channels. Right now I have one single channel stick of ddr memory. i'm thinking of adding memory, and i wondered if I get a dual channel set, can i still use the existing single memory stick? let me know thanks.
 

A:can dual channel ddr be used at the same time with single channel ddr???

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Is it possible to fill all of the memory slots on a motherboard that supports dual channel with non-matching ram (one chip at a time as I need/afford it)? If I just put more ram in will the motherboard recognise all of it and just not take advantage of the second channel, or will it not recognise that non-matching ram in the second channel sockets?

Thanks!!
 

A:Dual channel RAM in single channel mode

It will recognize it but not run in dual channel if the pair are mismatched.
Ps; The pair don't have to be exact matches by the way, same speed, type, size, and timings allow for two different brands to run in dual channel.
 

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Hi, I have 2x1GB DDR400 single channel memory. I was wondering if I could add 2x1GB of dual channel memory? So i would have 2gb dual 2gb single.
 

A:single channel and dual channel ddr400?

There's no such thing as dual channel memory,if the two sticks you've got now are exactly the same,then you can probably run them in dual channel.It depends on which slots you use,it's either 1&2 or 1&3.Check your manual to see,or post your motherboard make and model.Also,is there any reason why you want 4gb of memory.
 

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Ok, as of now I have two 512MB sticks of Ram in my Gigabyte GA-7N400-L board. Based on this diagnostic program I ran, it said my RAM was "single" channel (guessin that means it just regulare DDR).

What I'm wondering is, if I buy a Ram kit of two more 512MB Dual Channel Rams sticks, can I get the dual channel to still work on that set while still running the other two DDR sticks (non-dual on them of course)?
 

A:Mixing Dual Channel and Single Channel Ram Help!

:wave: Hello & Welcome to TechSpot :wave:

No, dual channel has (next to) nothing to do with the ram chips, but how the motherboard accesses the ram.

The reason you se Dual Channel RAM packages are that those are matched pairs (from the same production batch), and are supposed to give better results than two identical ram sticks bought separatly....

Also, buying dual channel sticks won't do anything for you if your motherboard/cpu doesn't support it. But you don't have to worry about that with your current mobo.

Actually, your mobo has a very good and detailed manual, which tells you how to use dual channel ram stick on page 19.
It even has support for using 4 sticks of ram, unlike many other (older) mobos.

So read that page, and if you still have questions, come back here.
If you can't find your manual, you can download it from here..
 

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Well, as it says in the title:
Is single channel 1gb as good as dual channel 2*512 mb.

I have tried to add memory to my mobo, but something went wrong and now my mobo only sees the first memory module. Really, I've tried everything and now I give up to return to normal life until I buy a new system.

So at first I had 2 * 512 mb memory at 800 mhz, dual channel.
Now I have 1* 1g memory at again 800 mhz, but single channel.

So is that ok, or is running at single channel much inferior to dual channel, even if I have the same amount of memory?
 

A:single channel 1gb as good as dual channel 2*512 mb?

No. Single channel is NEVER better than dual channel. Dual channel is always better and runs faster.

read: http://www.techspot.com/vb/topic65114.html
 

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Heya, I'm new here, recently, my friend said I had a computer that could have a "dual DDR channel"? I dont know much about computers, and i wanted to know more, so he checked my computer with a program thats called "Cpu-Z" and it said my DDR channel was Single, even though all my "RAM" slots are filled with DDR 512mbs, any reasons why?
 

A:Switching from Single DDR channel to Dual DDR channel?

Well there may be a setting in Bios to set it for dual channel
Or even a little jumper on the Motherboard that must be placed on the correct pins

You will need to download your computer's (or motherboard's if it's not a name brand) Manual
 

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Hello All, i was wondering what is single channel and dual channel. This question came to my mind when i ran my PC with single RAM stick it shows "running on single channel" and when i inserted the second stick it says "running on dual channel". What is this?.......Also my graphic card crashes when i use the second stick, but runs smooth with single. I ran a memtest throughout night and got a blue screen in the morning. I will replace my RAM if it is faulty, but would like to know if there is some settings missing on my mobo.

A:Dual channel vs Single channel

Essentially, dual channel means that you have two channels/pathways for your CPU to access your RAM rather than one in single channel. It's kinda like having a 2 lane highway versus a 1 lane highway to drive on. Think increased space for data flow. More space, more data. It improves performance.

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hi!
its about my old desktop computer..
abit nf-m2s motherboard, amd athelon 2.4Ghz prossesor, 2X512MB RAM(!!!).
i have installed windows 7 (32bit) on it a month ago, but after getting pissed of waiting i decided to buy another 2Gb ram, and replaced it instead of one of the 512-ram (bad move i guess) and at the beggining it seems to work fast and well (computer properties showed me 2.5gb ram).
after an hour of using it stuck, when i restart the computer, while noticing that on the startup it says 'single channel-64 bit' (and not 128, i guess). .. and stuck again..
i tried working only with the 2gb card, or back only with the 2X512 - nothing helps.

is there any solution besides reinstall win 7 with the 2GB card?
does another 2BG card for faster duel channel will be helpful(with my slow processor..)?

waiting for salvation..
shachaf

A:dual channel to single channel

Usually, to get dual channel, you have to install RAM in pairs of the same size.

If you are using multiple pairs, the pairs don't have to be the same size. (Example: two 1GB DIMMs, plus two 2GB ones, would support dual channel, although they'd have to be in the correct slots.)

I belive that some motherboards can use dual channel mode with 3 DIMMs, but it's not obvious how that works.

My Intel X58 motherboard claims to be able to do triple channel with 4 DIMMs in the right slots, but I've never tried it.

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I recently purchased a 1gb stick of ddr400 (non-ecc) dual channel ram. i have a dell 8300 with 2x256mb single channel ram sticks. i tried to replace the 2x256mb sticks(ddr400) with the 1gb stick in DiMM 1, this resulted in beeping of the pc and it not booting. I also tryed the 2 256mb in DiMM 1 and DiMM 3 with the 1gb stick in DiMM 2. Whichever way i try it my pc refuses to read the 1gb stick. Im running windows xp. do i need to purchase a second 1gb stick for DiMM 4?

thanks in advance this has been bugging me for quite some time!
 

A:dual channel and single channel RAM

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Can I change my motherboard from single channel to dual channel Is decided by the bios? Acer x1700 desktop. thanks
 

A:Single channel to dual channel

That depends on whether or not you have a matching set of dual channel memory installed.
 

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Hey Guyz just a question, i have 1 gig of ram running single at the moment. i have a amd 64bit 3000+ processor running windows xp home. am i better to run my ram config this way or to run 512mb dual channel? if not to much hassel please explain! thanks!
 

A:Single Channel vs Dual Channel Ram

check out this article....

First of all does your mobo support dual channel? AMD socket 754 do not support dual channel. I have a 754

Here is an article that answers all of your questions...
(http://www.devhardware.com/c/a/Memory/Dual-Channel/)

Keep in mind that in order to perform in dual channel you need to sticks of the exact type of memory - "matched pairs" (same speed and latency).
 

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I've been running Kingston HyperX 240-Pin DDR2 675 (PC2 5400) Dual Channel SDRAM for over a year now. I just realised that it is only running in Single Channel mode. I'm pretty sure it's because my mobo Foxconn 915A01-P-8EKRS only supports Dual Channel with a bandwith of up to 533 (PC2 4200). My question is, if I purchase the 533 version will I be able to run the new pair with Dual Channel while running the old pair with Single Channel?

(I know that the old pair will probably jump down to 533 also.)

Also, do you think it would be worth it for $100? Is there a noticeable difference?

Thanks for the help.
 

A:Mixing Dual Channel Pair and Single Channel Pair Memory question

need more specs

does your mobo have 4 ram slots if so use the 1st and 3rd that should run it in dual channel !!

also make sure you on have 2 sticks in not 3 :slurp:

and the answer is to your question what ever the lowest speed ram is. the other ram will be clocked down to run at that same speed the lowest speed
takes the rains !!!
and you will notice the difference running dual chanel

but for reall speed difference ditch your ram and buy GEIL ULTRA
 

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Is this considered value RAM? I bought 2gigs of it for $50, installed it and it is defaulting to DDR-667. Seemed like a steal at the time

http://www.newegg.com/product/product.asp?item=N82E16820134583

I had to manually go into BIOS and up the voltage and increase the clock - It is now at DDR-800
---------------------------------------------------------------------------------------------------------------
And while were at it, newegg.com advertises this http://www.newegg.com/product/product.asp?item=N82E16820134583
as SLI ready, but I do NOT see where you would hook up the SLI cable. Anybody?
Just a few kinks with the new build
 

A:Kingston HyperX 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel De

From the newegg comments:




I feel as like I should clear up the confusion about this memory. This ram is programed to default to DDR2-667 at 1.8volts instead of the DDR2-800 at 2volts. This is because most motherboards default to 1.8v, and it would suck if you were trying to build a new computer and you couldn't boot because your memory only ran at 2v. That's why kingston made it so you can run it at 1.8v(although at a slower speed) and change it to 2v later. YOU NEED TO MANUALLY SET THE VOLTAGE TO 2VOLTS AND SPEED TO DDR2 800 @ 4-4-4-12 IN THE BIOS. If you don't do this then you are wasting good memory. If you don't believe me then read the data sheet here: http://www.valueram.com/datasheets/KHX6400D2LLK2_2G.pdfClick to expand...

So that makes sense...


Also I think your 2nd link is the same as your first
 

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Here's the problem, I'm building my new PC as we speak and I bought this mammoth cpu cooler (which while I knew it would be big I didn't read any reviews stating it covers a memory slot) which fully covers up my first ram slot and the heat spreader is too tall on the memory to try and weasel it in there. The Gigabyte's instructions tell me that there are two "dual channels" one using 1 and 3 and the other using 2 and 4. I installed the RAM into 2 and 4 because there is no other way for it to work. Is there any reason I wouldn't get the same performance out of slots 2 and 4 as opposed to 1 and 3?
 

A:Solved: Can dual channel memory be installed in channel 1 rather than channel 0?

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RELEVANCY SCORE 115.2

Could someone explain me the dual channel feature of RAM?
My computer has got a 2gb chip in channel A and 1gb in channel B.
While booting a message was displayed like..
"You do not have equal memory installed in channel A and channel B. for maximum memory performance use equal memory in both channels"

The motherboard is an intel D945GCNL.the intel website says it can hold only upto 2gb.but my PC is running ok with 3gb.
so is the dual channel feature unavailable now? is my system running at a lower performance than it should be?
 

A:Dual Channel DDR2 SDRAM

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RELEVANCY SCORE 115.2

Hello,

I have a Dell 4700 Desktop with two sticks of 256MB (PC2-3200) DDR2 RAM. These are installed in the 1 and 2 DIMMs in order to take advantage of Dual channel memory.

However, I am planning of adding two more [different] sticks (1GB each) to DIMM slots 3 and 4. Will the system still take advantage of the dual channeling, in this setup?

Also, I am wondering greatly if I buy this new RAM, and it operates at PC2-4200, 5200, or 6400, will this disable the dual channel? What PC-xxxx RAM should I go for?

Also what is a good CAS latency to look for on RAM? What exactly does the PC2-xxxx number refer to?

Thank you.
 

A:Need Help with Dual-Channel Memory (DDR2)

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RELEVANCY SCORE 115.2

Bought an HP SR5010nx with Vista and it's slow. It has a 512 MB , PC2-4200 in one channel
and I'd like to add another. Checked the Cruial.com compatibilty and they give me this.
http://www.crucial.com/store/mpartspecs.aspx?mtbpoid=DC865F0CA5CA7304
I beleive Crucial part # CT672591 is compatible with the Livermore-GL6 MO BD, but is it
compatible with the memory HP installed. Will I have problems if I don't buy the kit which contains two from the same mfgr.
 

A:DDR2 dual channel compatibility

You can run different modules at the same time, but it would be better if they matched so you know there won't be any issues. It's up to you. For Vista I would get 2GB if you plan on doing anything besides checking email.
 

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RELEVANCY SCORE 114

I find myself not really understanding what the best/optimal memory config is for this little rig based on the available parts I have laying around.

this is an older Dell Dimension 4700, Intel 915G chipset, Pentium 4@ 3.0GHz.
Dual channel memory, four slots total. 800mhz FSB

I have 2x1GB PC2-6400U-666-12-ZZ, 2x256 PC2-3200U-333-10-C1, and/or 2x256 PC2-4200U-444-11-C1 to mix/match.

The first question I have is: how do I know which bank is bank '0', and does it matter? the banks [0, 1] are color-differentiated physically. [thankfully]

Second, which config will deliver the best performance:
A - Dual channel, 1GB each in first slot of each channel [or does it matter which slot as long as its dual channel? Total=2GB

B - Dual Channel, 1GB each in one slot of each bank, pls one each PC2-3200U-333-10-C1 256mb in the 'other' slot of each channel/bank. total 2.5gb

C - 1GB each in one slot of each bank, plus one each PC2-4200U-444-11-C1 in the other slot of each bank. total 2.5gb

?

A:Best mix/match DDR2 in Dual-channel banks?

I'd stay with the 2GB of DDR2-800 (PC2-6400) only. All of the RAM will run at the frequency of the slowest RAM. It's not worth the performance hit to only add 512MB.

That assumes that the PC actually runs DDR2-800 at its nominal frequency.

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RELEVANCY SCORE 114

Hi,
After some probing about, I finally know the difference between ecc and non-ecc. My Dell GX280 sff pc spec states "non-ecc dual channel shared ddr2 sdram memory(400mhz)". After looking about on the internet I find that a lot of suppliers state pc4200 533mhz. Could someone please tell me what the 400mhz relates to and whether it would be better to put in 533mhz. Also any reccommendations of suppliers or manufacturers would be highly welcomed.
Thanks very much. regards, Graham.
 

A:non-ecc dual channel shared ddr2 sdram

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RELEVANCY SCORE 113.6

are they interchangeable?

if my board has DDR2, can i use the ddr2 dual channel?
 

A:DDR2 and DDR2 Dual channel ?

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RELEVANCY SCORE 112.8

dont know the motherboard yet as i will not be getting the pc in the mail until friday, however my question is about Dual-Channel DDR2 RAM

my mobo will have 4 DIMMS capable of 1GB each for a total of 4GB
it will be stock with 2 512MB DUAL CHANNEL DDR2 PC5300 667MHZ sticks
can i add 2 more aftermarket 512MB DUAL CHANNEL DDR2 PC5300 667MHZ sticks and maintain DUAL CHANNEL performance, for a total of 2GB instead of 1GB?

if so do they have to be the same latency, if so how will i determine latency as this is a DELL XPS GEN 5 pre-assembled?

or would i be better off removing the 2 512MB original sticks, selling them on ebay, and putting 2 sets of brand new CORSAIR Memory 2 x 512 MB PC2-5300 DDR2 RAM DUAL CHANNEL MATCHED PAIRS???


DELL XPS GEN 5 (SEP 2005)
Pentium D830 (3.0GHZ),DCT
1GB DDR2 SDRAM AT 667MHZ-2X512MB
WIRELESS KYBD/ MOUSE
20 IN WIDESCREEN ULTRASHARP LCD
256MB PCIE X16 ATI RADEON X850 XT
RAID 0 W/ 2X250GB HARD DRIVES(STRIPE)
WIN XP PRO,SP2
48X CD-RW/ 16X DVD+/-RW
 

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RELEVANCY SCORE 111.2

My RAM appears to be running in single channel only. Any ideas why and how to fix this?

I'm running 2 x 2gb sticks of Corsair XMS2 800MHz + 2 x 1gb sticks of the same. 6gb altogether but my Vista Performance base score is 4.8 with the RAM being the lowest score!

Everest Spec:



I've tried fitting the RAM in different slots aswell as running various RAM checking software. It makes no difference if I only have 1gb inserted.

Any help would be greatfully appreciated. Thanks.
 

A:Dual channel or single?

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RELEVANCY SCORE 111.2

I have a 4GB set 2x2gb from G Skill PC8000 and another set of G Skill PC6400. I'm curious if I'll have better performance with just one set or both.

Thanks.
 

A:4GB Dual Channel Vs. 8GB Single

What version of Windows?
If it is only 32bit it won't make a jot of difference as less than 4Gb is ever going to be used.
 

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RELEVANCY SCORE 111.2

Hi

Ive just purchased a 2x 1GB Dual Channel RAM Kit for my pc.

I was wondering whether I should just use the new RAM in Dual Channel giving me a total of 2GB or whether I should put my old 512MB stick in as well, giving 2.5GB but no Dual Channel???

The CAS timings for both types of stick are the same.

I am using an AMD 64 3200 on an MSI Neo4 Platinum mobo.

Thanks,

Phil
 

A:2GB Dual Channel or 2.5GB single???

use dual channel. No point adding another 512mb in there
 

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RELEVANCY SCORE 111.2

My motherboard (Asus A8N-SLI Deluxe Socket 939) currently has Geil 2x512MB Dual Channel ram, using DIMM_A1 and DIMM_B1, but windows will not boot after I installed a new single 1x 1GB DDR400 Hynix ram stick on either DIMM_A2 or DIMM_B2. Since I already have dual channel installed must I have another 2x 512MB dual channel pair on DIMM_A2 and DIMM_B2 to upgrade to 2GB?
 

A:Can Dual Channel Ram mix with Single?

Dual channel actually refers tot he motherboards capability. paired sets of ram are called "dual channel" because the are paired to make sure they are operating at the same speed and timings. Your problem is that either the geil doesnt like the hynix or your motherboard doesnt.
 

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RELEVANCY SCORE 110.4

what is the best brand to go for with price considered

need it to be 5-5-5 timing to run dual channel correctly with current ram
 

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RELEVANCY SCORE 110

Hello everyone! Will a single core CPU work with dual channel RAM? Will there be a performance impact? I will get a dual core CPU soon, but not yet.
 

A:Single core CPU - Dual Channel RAM?

Yes a single core CPU will work with dual channel RAM, and it should not give u any reason not to do so.
 

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RELEVANCY SCORE 110

Hi again guys!

just a quick one. For a system used for gaming (althought not a high spec) and maybe migrating to Vista (now on XP)

what would you preffer? what of this options about RAM you think is better (in terms of performance, speed, etc)?
Now 1gb ram DDR 400mhz

1) Upgrade to 1, 5 GB on Dual channel.
2) Upgrade to 2gb on Single Channel.

Thx in advance.

Greets!
 

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RELEVANCY SCORE 110

Is 2 slots of memory in performance better than 1 slot using the same amount of RAM, e.g., 1 x 16 GBs of DDR3 Laptop Memory or 2 x 8 GB of DDR3? I think I know the obvious, 1 x 16 GB in 1 slot, correct?

Also, I have seen some lower ended laptops - say with just a skylake i5 (6200U) perform better with DDR3 than overkill of DRR4 - DDR4 seemed to have latency issues, like bottle necked traffic. I have seen where there is this 10 second lag before a program responds when opening a new application using DDR4, where an i5 6th gen seems to utilize DDR3 laptop memory much smoother, instant gratification while opening up a new application. BUT, overall, while the application is up and running, DDR4 has the advantage to perform better being its at a higher frequency - 2133 HZs as opposed to DDR3 at 1600 HZs, so is there sometimes a trade off using DDR4 over DDR3 in lower ended laptops, say those who do not have a dedicated graphics card?

One more unrelated question, if I can? While swapping out a mechanical drive is as easy as they say, correct, I am not concerned about my programs I have on the mechanical drive, I just want to swap that mechanical drive out for an SSD. I do the swap, use a USB boot to Windows 10 downloaded on that USB media created tool, boot using the USB option, correct, or just boot normally, and your BIOS will automatically detect the USB Media created tool? Just a bit confused on just how easy all of that is while doing a swap, like I say, not worried about ... Read more

A:What is Better Dual or Single Channel Memory?

Hi,

In theory a set of matched 2*8GB modules should be faster. In practice however I'd doubt anyone would notice a difference.

I have a machine equipped with DDR3 (I7 4770) and another running DDR4 (I5 6500). Not a fair comparison but I haven't noticed the impact of the type of RAM used. The amount of it, yes. Of course the I7 CPU is much more powerful than the I5 too.
Swapping a HDD out for a decent SDD makes the most difference overall.

Cheers,

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