My laptop doesnt do anything when i press the power buttonThe light is on by the AC adapter portIt comes on randomly sometimes when i press it but its all luck basedI tried the 15 second power hold thing and it didnt workHELP
I recommend downloading and running Reimage. It's a computer repair tool that has been proven to identify and fix many Windows problems with a high level of success.
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Hello @peanis You might want to take a look at this document: http://support.hp.com/us-en/document/c01443371 Hope this helps, for any further queries reply to the post and feel free to join us again !! **Click the White Thumbs Up Button on the right to say Thanks**Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem. Thank You,GBL84I am not an HP EmployeeRead other 3 answers
When plugging in the power adapter, the "charge" light does not come on, nor will the notebook power up. To rule out the HP power adapter I plugged in a Targus universal adapter (with correct polarity) and same result. Same results whether the battery is installed or not. The notebook had been in storage for several months, therefore, no recent changes. Any ideas?Read other answers
My computer was down when I came back from lunch and could not get it to come back on. If I hold the power button down for about 7 seconds it blinks orange but there is not noise from the fan coming on or post beep. Also the green light on the back is not on either. All of the other equipment sharing the same power strip come on but not the desktop so it is not the power strip. I also tried to set it up in another office on a completely different circuit and still does the same thing. What should I try next?
Which form factor, desktop, mini-tower, small form, ultra-small form?
From the (desktop) manual: Blinking amber light indicates a problem with the system board.
Are any of the 4 diagnostic LEDs on when it won't boot? ,They're on the front of the PC next to the power button. Look up error codes in the manual.
Possible power supply failure if the green light is off on the back. Can you try a different power cord? What happens if you push the power supply diagnostic button on back of PC next to that (green) power light?
When plug in power cord to charge laptop the light turns red instead of white why?
Hi,I think a red light means charging. (According to manual amber means charging) (source: HP Manual Download Link)Does it change to white after several hours?
----------CharlesIndependent Computer Technician
Daughter last used laptop on battery power and ran id down completely until computer shut off. She plugged in the power cord and it would not come on when pressing the power button. Laptop was plugged in overnight and this morning same issue - the power light just blinks five times when you press the power button. This is the same behaviour whether plugged into power or not. I've tried holding down the power button. Tried with battery removed and A/C power, but then no light comes on at all. I've tried removing the battery and A/C power, holding the power button down for 30 seconds, then install battery and plug in A/C power, but no difference. I tried a different A/C power adapter and no difference. Any ideas?
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I had an object hold down the power button all day. I now plugged in the A/C power, and it started right away. Problem solved.
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I am not really sure what happend, it was working. Then the next day i unplugged the adapter plug from the pc and the power cord from the wall. and when i plugged the power cable back in the surge protector and the light was on. but when i plugged the adapter plug into the pc and the light on the power adapter shut off. and im not really sure if the power supply is broken, or if its something with the motherboard or the power input is broke on the pc.
Hello @Morgan2468, Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More. I have read your post on how your desktop computer's light on the power adapter shut off. Is the desktop not able to power on? Does the adapter work if plugged into another outlet? Does the adapter light come on if it is plugged directly into a wall outlet? Please re-post with the necessary information, this way I will be able to research this further for you. I look forward to your reply!Cheers!Read other 2 answers
THE POWER ADAPTER LIGHT TURNS ON WHEN PLUGED TO THE WALL OUTLET BUT WHEN I PLUG IT IN TO THE COMPUTER IT TURNS OFF, PLEASE HELP WITH THIS ISSUE. I HAVE TRIED THEREE DIFFERENT POWER ADAPTERS AND THE COMPUTER DOSE NOT POWER ON , THERE IS NO POWER AT ALL AND THE POWER LIGHT IS NOT TRUNIN ONRead other answers
Hi, I had a friend bring me an HP laptop recently that was not turning on or responding at all. The only thing that happens when I plug the laptop in is that the light located right next to the power port (which has a plug icon next to it) blinks a light blue / whitish color. No other lights blink, not the lightning bolt charging light, nothing. I have tried it with the battery installed, and removed. Same behavior.I have tried the power drain (hold the power button for a minute while the batter is removed). Same behavior.I have tried multiple power adapters. Same behavior. Does this likely mean something is wrong with the motherboard itself? I can't find much information on a blinking power port light, so any help would be appreciated. Thanks. AdamRead other answers
The Power Adapter Light is blinking orange and I am unable to turn on my notebook. It appears to blink 7 times and then 1 time before a extended pause. Any ideas on how to get the notebook powered up again?
Your notebook has hardware failure and it is sending the hexadecimal code. This code can be read by technicians and they will know what the problem is.
I cannot say for sure but I presume there must be some problem with power supply electronic.
Is the warranty still valid?
I have had this custom built PC for a couple of months. All of a sudden when i pressed shut off on Windows 10 and went to bed, it stopped working. The fans wont start, I don't hear running from my SSD or hardrive, however the light that indicates the PC is on remains on. I have unplugged my power supply and unplugged my surge protector from the wall and it remains on. The only way i can get the LED to turn off is by unplugging from the motherboard. My specs are here ---> http://pcpartpicker.com/b/Mhhqqs
Hp touchsmart 320 all in one desktop .I plug the power cord into the pc and the green light just above that comes on, i go to turn the pc on like every other time and the power button lights up blue for a second then goes to orange, the screen doesnt turn on and i can hear nothing boot up in the back like the fan etc, no noise whatsoever but i get the power button light, blue then orange and stays orange.I need to fix this to get all my files and everything off it before it crashes for good .Pls helpRead other answers
After un packing the brand new probook, and completeing the intial setup wizard i have placed it with out use for one week.When i tried to power on the computer wont start and the Battry or power light shows an amber light on that lights in constantly when power cable is pluged in and blinks together with power and wifi light when power button is pressed. Your kind assistance is very much appreciated.Read other answers
power, there is a blinking light in the back, but it wont turn on when i hit the power button. i need help .it is a Compaq PC
The PC may need a new PSU (Power Supply Unit) which fits inside the PC case and distributes the power to the various components.
So I am on vacation and was charging all of my accessories off of my laptop via USB (camera, phone, battery) since I only have one AC adapter and I closed the lid and when I reopened it it would not turn back on or come out of sleep mode. The power button light is on and stays on and the power light on the front stays on. I tried to reset, no luckPulled the battery overnight and tried to start it, no luckTried to start it without battery on AC, no luck Any thoughts? Is it fried? Why are those lights coming on then? Thanks in advance.Read other answers
Hello Guys,I have HP dv6 pavilion series with Windows 10 (64 bit) for 4 years now. I dont have the Battery so I usually work with directly connecting the Power cable.It worked fine till now. Today it abruptly Shut down and since then its not booting. The Charging light keeps on Blinking.I have tried the 40/30 sec trick (holding thepower on button for 30-40 secs for the capacitors to discharge) twice, but in vain. I also cleaned up my cooling fan and checked for all the wiring, its all intact. After re-essembling the laptop, the same problem persists. And about the Bios update, I do think I have the latest bios updated, as my laptop is connected with internet, and I usually keep it all Updated. And if someone recommends me to Update the BIOS, well I cannot power on my laptop, so is there any alternative for updating the BIOS? Earlier it did Abruptly Shutdown twice or thrice over last few days, but used to Power up again. But today it wont work.Please Help Me guys. ThanksRead other answers
My laptop will not stay on adapter power unless the adapter plug is pressed hard against the port. I bought a new adapter but the problem still remains so I guess it's the port's problem but I have no idea how to have it fixed. The laptop is no longer under warranty. Where can I buy a new adapter port and would it be too much like brain surgery to try to do it myself?
Thanks for any help,
These ports are soldered to the motherboard. Replacing/repairing them consists of removing the motheboard from the laptop and soldering a new powerconnector on.
Definately not a do it yourself type thing. I would suggest a competent local computer shop. This service usually runs around $100 in my area. The challenge will be finding someone willing to work on laptops anymore.
antec 480 psupply
maxtor 40 Gig
All i did was take out my tbird 1.4. I went to 7-11 to get a drink, came back. put in an xp1800+ and now it wont power up.
Ive reseated the mobo,took uot all periphrials,cleared cmos,I think it might be grounded but i checked This has plagued me for almost 6 hours please help!
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I have an HP desktop. I accidentally hit the standby button on the keyboard. It started to put my computer into standby but seems to have completely powered it down. I couldn't turn it back on at all. I've tried hitting the power button and unplugging the computer. Nothing works. There is a green light near the power cord in the back blinking and that's it. I've tried unplugging all peripherals before plugging the power back in. I've also tried unplugging it and pressing the power button a few times before plugging it back in. I just can't get it to turn back on.
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i have a home built computer that is about 5 yrs old now but never given me any problems. i just recently bought a gig of ram, and after i installed it i tried to turn on the pc and nothing happened. i took out the new gig to see if that was it but it wasnt, still nothing. the mobo light is on, and ive checked all cables and tried swapping out the power supply and still nothing. i have no idea what to do and complettely stumped. i did smell smoke but i thott it might have just been dust. lol. its been a few weeks since it happened but i work a lot, and havent had the time.
im running a socket 478 soyo MoBo,
an OC'd intel p4 processor,
a 650 watt PS,
2 gigs of ddr ram
(1 stick pc3200, and the other pc2700)
a geforce 7800 gt, or gs, forgot.
and windows3 HDD's, a normal and a slave.
and another external.
what brand of psu? on a 5 year old computer that is always a question, and because the mobo light is on does not mean the power is good.
i have a hp h8-1534 that just stopped working brought it to shop things it might be the mother board M3970AM-HP (Angelica2)where can i find one of these and is it worth it to try to fix it? ram power supply and video card were all checked machine does not start there is no hard drive activity. thank youRead other answers
as per one of my friend I could replace my memory (RAM) up to 32GB, so I've ordered a couple sticks of Kingston HyperX so I've took slot 1+2 and replaced 2 4GB Hynix RAM by 2 8GB HyperX...
Now I have a good old CPU that doesnt work plus it smell like burnt plastic with no apparent damage to the board or RAM...
Startup: 2x BEEP (No BIOS)Motherboard Light: Solid AmberBootup Light: Flashing AmberPower Supply Light: Solid Green
I've tried booting from a single RAM unit on slot one then slot two, and nothing has changed... anyone can help?
Motherboard: 0Y2MRGhttp://www.findlaptopdriver.com/specs-0y2mrg-dell/Processor: i7 2700Primary: SSD Kingston HyperX Savage 240 (added)Secondary: Seagate 1.5TB + 2TB (added) Barracuda (7200)New RAM: ts/HX316C10FK2/16http://www.kingston.com/dataSheets/HX316C10FK2_16.pdfOld RAM: HMT351U6CFR8C-H9https://www.amazon.com/PC3-10600-1333MHz-Hynix-HMT351U6CFR8C-H9-Unbuffered/dp/B0118BTRAS
Anyone?Read other 6 answers
When I plug power cord into computer the led at port stays on couple seconds then goes off. And when I push power button or wifi button or touch pad buttons the lightning bolt light on front of computer flashes four times slow flashes. Then after if I push power button it flashes three quick flashes from then on. No other lights flash and no beeps. Totally unresponsive computer. Tried hard reset didn't help. Computer does nothing with battery out and just power plugged in. Tried reseating memory nothing helped. Can't find definite light code chart for my model. Please helpRead other answers
After upgrading my OS from Windows 7 to Windows 10, When I manually click on "Start-------> Shutdown " my power button light wont turn off, screen goes black but the bottom is still giving light, it only turn off men I press it 7 sec ore remove the battery. Can some one help me and solve my problem.
My Envy wont turn on with the ac adapter pluged in and the battery in the laptop..i have tried the charger and its fine..the power sockets are also fine..the light beside the charger deos not even turn on when the battery is inside the laptop..as soon i take the battery out with the charger still connected , the light then turns on and the laptop then powers up when i press the power button. when the laptop is on without the battery and i fix the battery into it, it charges for just a few seconds and stops. i cant understand this because the battery lasted for four hours without plugged in the previous night and when it when low and wanted to charge it this issue occured,,..pls need your help guys..thank you
Hi @Manaseh_Tello1,Thanks for becoming a member of the HP Support Forums. I understand you are having an issue with the computer booting with the battery connected. I will be glad to help you. Please post the full product number and operating system in use on your computer. See the following, if you need help with that information.How Do I Find My Model Number or Product Number?Is the Windows Version on My Computer 32-bit or 64-bit?Please get back to me with above information, so I can help you better.Read other 4 answers
Hello.... My HP 14-ac150 after update windows 10 , the ac adapter LIGHT won't light anymore.Before update the windows, everything is fine. Now i don't know if charging the battery is full because the light won't on. Any help ???? Thanks ....Read other answers
I have a win7 pc and have brought a 4 port USB card. Ive installed the software and hardware and it has ut does not recognise any USB device I attach.
Today windows (7) started reporting power surge. Does anyone know what the problem might be.
x4 USB 3.0 2.0 PCI-E PCIE USB PORTS Express Expansion Card Adapter - UK SELLER | eBay
Hi check the card is firmly seated does it show up in device manager or the biosRead other 2 answers
I just purchased a new Dell PC. I now get this message when I turn on my speakers:
power surge on the USB port. Unknown USB device needs more power than the port can supply. I have no idea why or how to fix it. Can anyone help me?
What specific Dell desktop computer?
What specific speakers?
I had my power adapter plugged into my laptop, as normal, but the power indicator light did not come on as normal when I plugged it in before I opened the lid. It works in battery mode when I open the lid. My Toshiba PC Health monitor tells me the battery is "good." I'm using it now and it seems OK in battery mode. And yes, I checked the unit and cords--look fine. Power is on. There are no "stupid" mistakes on my part. Is there any way to check the "power adapter" in the laptop (laptop side--I don't mean the external one) using the Win 8 OS? I know this is probably a "hardware" problem but I figured I see if I could get any information from Windows 8 about the issue. I went into the device manager and checked the properties of Microsoft AC Adapter and Compliant control method battery, both under the "Batteries" section. I checked what seemed could be related to power under System Devices, and all say "This device is working properly." It is like the computer doesn't recognize it is plugged in to an AC source. If anyone knows a Win 8 method to check anything before I try to order an adapter or so forth, it would be appreciated. Thanks.Read other answers
dell xps m2010 wont start up ,blue power light and bluetooth light stay on,i have been searching posts in other forums as well as this one and i thought i`d narrowed it down to the graphics card,i was right to an effect,my approach was to take the xps apart following dells website documents,while i had the top (dvd drive) off ,i noticed that the graphics card screws were really loose (this was my first job)...i tightened these.The top(dvd drive ) i re-connected ,but propped it up at an angle so i could still see motherboard and parts,(warning!be carefull!!)electric!! ...attached power cable and pressed power button after half a dozen times pressing this it came to life.I noticed my fans were working and thought this might not be my motherboard after all ,no overheating happening...then it froze on windows xp ??it was a start !another 6 to ten times pressing power button it worked again this time not freezing.went into bluetooth with usb mouse and paired keyboard ,made system restore point and restarted .It took maybe 4 times with it being glitchy(freezing ..not powering up) ,but when it does load xp without freezing try restarting windows xp and then it eventually finds its feet!!!my xps 2010 is running ok now.jimb
I will turn it on and after a minute or two the monitor goes to power save mode and the hard disk light goes from off/blinking to solid on and the power light stays on.
I have reinstalled the operating system and i thought that fixed it. I had SP 1 i installed all of my updates and SP2 and it starting to do it again (it will do it in SP1 but not nearly as often or when i run a flash heavy program: PSP Video or even the Scion website).
It will not do it at all in BIOS as i did every test on the diagnostics page for my hard drive (all pass) though if it turns off it usually turns on and runs dskchk and it wont stay on for that
In safe mode it is also fine it will not turn off once
I dont know what i did last as it was fine then i was gone for a month and I had it unplugged etc., came back hooked it up and it started doing it after a little while
I have taken a can of air to every inch, switched the Flat cord going to the HDD from the Motherboard.
All fans run fine
Thats all i can think of right now ask me anything else you need to know
I'll give this forum a couple of days/a week maybe then i'll take it to a local shop to diagnose it
Much thanks to anyone who has any idea's
Hi. Tonight I had a problem with my laptop. It was in sleeping mode, and when I open the lid there were no mouse function and no touch screen function. So the only thing I could do was to press the power button for 3 seconds to turn it off, but it didn't completely, because the screen turn off, but the power button light is blinking just like when it is on sleep mode, and I'm not sure if the hard drive light was on, off or blinking before this, but now is blinking. I press the power button and nothing happen, I press it for 3 seconds and nothing happen. I even did the HDMI connection to another monitor, but both monitors don't show anything, not even recognize that something is connected to the HDMI port in the new monitor. There is no sound, nothing, just the 2 blinking lights. What should I do? Thanks PS: I'm not sure if it's Windows 10 32-bit or 64-bit. It was upgraded from Windows 8Read other answers
Hello everyone, I am facing this problem from the past few days in my Lenovo G510. Whenever I plug in the charger for charging the laptop, both the power light and the battery light with orange color, starts flashing and the laptop stops charging. The color of the battery light changes to orange, even if my laptop is nearly 50% charged.Can't figure out, what is the problem? Any help will be appreciated!Read other answers
alright, I just got this inspiron 6000 from my sister that didnt work. she said nothing would happen at all. well it turned out the power light would go on, caps lock light blink for a few seconds and it would turn off. somehow the memory wasnt in the slot very well. bam, got it working, dumped all her pics and crap to a external hdd, and wanted to wipe it all out and start over. she is sending me a xp disc, but for now I just figured Id go back to 2k cuz I have that disc and when I get the disc go back to xp.
anyways, I couldnt figure out how to format the drive, because obviously xp was running off of it. anyways, I kept trying all the del - f2 - f8 - f12 to get a dos prompt before windos would load but I couldnt. so I figured Id just put the 2k disc in because I thought I remember that it formats it right before it installs. but it asked me where to install and the disk was partitioned and I wanted one drive letter so I cancelled the install, before it was actually installing though, said f3 to quit and I hit f3. now when I try to power it up, the power light comes on, the hdd light comes on for maybe 1-2 seconds max, then the cd drive light comes on and it spins up, then stops, and the screen just stays black, never did anything either. just black the whole time.
I cant use a floppy to try anything because no floppy drive. I tried starting up with the win2k disc in but doesnt work. I searched on my desktop running win2k and it showed a tutorial for making a usb flas... Read more
oh, also, i did try and search and most I found were a black screen after the self test or the windows logo, not right away.
also, dont think it matters, but when the lights go out, it is at the point where hitting the power button again, the computer instantly turns off.
also, just checked, and its nothing to do with the lcd. I just hooked up my monitor, and my monitor tells me when there is no signal, and it just stayed black, then when it was unplugged from the laptop that is when it said no signal.
I have a HP Envy m6-k022dx - p/n E0L06UA#ABA s/n [Personal Information Removed] When I charge it up and press the power button:The power light comes on, the wifi light is orangeAnd Nothing else works - No Fan - NO HD spin - blank screen.Num Lock and Caps do not light up. I took the back off and did not see any loose connectors, I disconnected the Battery, removed RAM and even the wifi card.Put the battery connector back on and same thing. (FWIIW: This is a Laptop with an internal battery) Would a bad fan cause this? (If not, my swag is -the motherboard is toast )
Hello @W8WCA?, Thank you for the quick reply! You may consider contacting HP Phone Support for additional options. Please use the following http://www.hp.com/contacthp and create a case for your issue and contact HP. If you live outside the US/Canada, please click the link below to get the contact information for your region.http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html I hope this helps. Regards!Read other 5 answers
My computer is getting power but screen is black and amber light turns on for 3 seconds then nothing. I tried draining the power but still no changeRead other answers
This just started happening recently. The power indicator light (near the power plug) does not turn on and Windows does not recognize when the adapter is plugged in; the power icon and cusomized power saving "on battery" behavior reflect that. HOWEVER, the battery does charge. The "lightning bolt" charging light on the front between HDD and system power lights comes on and the battery recharges if not at 100%. Any thoughts on how to troubleshoot this? Is it more likely a Windows or hardware problem? The BIOS does not have the power adapter test mentioned here, and I could not find the software download for the Smart Adapter functionality (this laptop was installed with clean, non-OEM OS, so any OEM software had to be added manually). Thanks in advance,KyleRead other answers
Toshiba Satellite A25-S2792 w/ XP & P4 has greenpower chord is lit and yellow battery light is flashing when power chord is plugged in. After I press the power button, the power chord light changes to yellow, begins flashing and the battery light goes out. Removing the battery gives the same results. Pressing and holding power button down for 20 seconds w/ battery out yields same result as well. Suggestions?
The motherboard is bad. Have you tried reseating the memory?
My Inspiron 15R N5110 won't come on. I've tried both battery and 2 different ac adapters. I've removed the battery, unplugged it, and held the power button for 30 seconds to discharge the system, but it still won't come on.
I took the laptop apart and everything looks alright, but the DC jack was slightly brown on top so I replaced the DC jack board. It still won't work.
I made sure the connections are tight (the DC jack and other USB board) by screwing them down. The only thing that happens that shows any life is when the battery is in. The power button, power indicator light in front, and the little "gears" light blink white for just a moment, then off, about every 5 seconds.
Any ideas? If I have to replace the motherboard, what is the difference between 0G8RW1 and 0VVN1W? I'm not worried about the product key not validating - may even put Windows 8 on it.
Both the Motherboards 0G8RW1 and 0VVN1W are compatible with this model and there is no difference. 07GC4R is also compatible with this model.
I picked up this Alienware 5700 off ebay to hopefully refurbish for my son but I'm new at this and still learning and so this thing has me baffled. The laptop is in pristine condition but shows no signs of life. When I plug in the power supply the green light on the power supply goes from solid green to blinking rapidly to the point you can barely see it. To me that would mean a short somewhere right ? If so where ? Has anyone else ever had experience with something like this ? I just don't want to go buying a new battery for a laptop that maybe fried already. Any help would be greatly appreciated.
Remove the laptops battery and try the AC power only. If the green light does the same, it still could only be a bad AC adapter, or at worst, a shorted laptop motherboard
Power light adjacent to power cord blinks white but laptop does not turn on! What is the solution to get my laptop to turn on?
Hi there, Please follow the instructions mentioned in the following document and check if this helps resolve the issue: http://h20565.www2.hp.com/hpsc/doc/public/display?sp4ts.oid=5405421&docId=emr_na-c03515402&docLocale... Hope this helps!
Although I am an HP Employee, I am speaking for myself and not for HP.Make it easier for other people to find solutions, by marking my answer ?Accept as Solution? if it solves your problem.
My pc just shut down this morning. I had a spare power pack- brand new and I fitted that.
Windows ran perfectly for 10 minutes then the same thing happened again!
I noticed on both occasions, that even after I had removed the extenal power lead, the green power 'on' light kept on flashing on/off.
I have never noticed that before when a power pack 'blew'.
Does anyone think I was unlucky with a 'duff' replacement power pack?
Is the flashing power light indicative of some oother fault?
Any and all help welcome. PLEASE!
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Hello, my T500 does not turn on, no lights are lit, battery not charging. I tried to turn in the dock, but nothing. I tried to insert a fully charged battery but nothing too. Will probably be something wrong with the motherboard, maybe some fuse, but do not know where to look. Thanks for helpRead other answers
I have a HP Mini 210 - 1030NR which won't turn on. There is no lights anywhere. Nothing happens when i press the power button.
I took out the hard drive and it works on my desktop. I took out the ram and tried to boot it up but nothing.
I am assuming it's probably a dead motherboard.
How can i test to see if the motherboard using a multi-meter?
I thought it was where you plug in the power adapter but I already tested some parts and i got 19V there, so i know it's not that.
I also tested where the battery is charged and it got .049v, so i know its working
But i tested the little white connector where the heatsink fan is going, but i didn't get any volts there, isnt there supposed to be some volts there?
I'm not sure whats wrong, anyone have any experience with power?
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I have a Sony VGC-RB42G computer. I recently moved my computer, cleaned off all the dust, and when I plugged everything back in, it won't power up. The light on the power supply blinks green, inside the motherboard also has a green light that blinks as well. It has a ticking sound too, but I am not sure if it is coming from the power supply or the motherboard. Any idea what could be wrong.
FYI, I have already unplugged everything from the power supply, pulled out the ram, checked the battery, and put everything back together and still no change. One thing I thought was strange was after I unplugged everything, I pulled the power into the power supply again and this time the green light came on but did not blink. It stayed solid.
Sounds like a Power Supply problem.
I shut down my Pavilion Elite for 1 week while away and now it will not turn on. The power supply light is on, I replaced the CMOS battery and the power switch is ok.
As you did not mention any message or display on the screen, I would use this tutorial for a step by step diagnostic. It also helps to remove the side panel, and visually watch the CPU and rear case fan movement(s). As you press the power button, pay attention to the fans. Also does the Power Supply LED stay ON? Or did it go OUT when you pressed the power button?Read other 5 answers