Computer Hope
Hardware => Hardware => Topic started by: modemthug on September 30, 2006, 02:22:30 PM
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Well my computer wont even boot up anymore. And my only access to a computer is using my older 98.
The computer turns on. Fans everything are on. The LED light on my tower turns yellow and same with the computer screen. It doesn't even boot at all. I was told that it may be from my BIOS. But what can I do to try to recover my computer ?
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What happened prior to this ? ?
Any beeps at all or no beeps ? ?
Any info on what type of machine this might be? What OS? ...........etc etc..........
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Before all this I had alot of errors and it closed my programs off.. And at some point it's just reboot by it self.
No beeps that I know of.
Sorry for me not giving info on the computer..
It's a HP Pavilion a430n.. Didn't come with a boot disk. Had a optional restore on startup.
Windows XP
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If there are no beeps at all on startup it is a hardware issue...and or that PSU is headed South on you.
Check all the connections you are familiar with and post back.
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No sounds what so ever. Just double checked.
PSU going south? What?
I just cleaned it out the other day while it wasn't working to make sure dust wasnt an issue.
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In the cleaning out process you have obviously dislodged one or more critical components...
CPU
RAM
Vid Card
etc.
You didn't use a vacuum in there did you ? ?
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I just cleaned it out the other day while it wasn't working to make sure dust wasnt an issue.
Did it stop working before or after you vacuumed?
PSU going south? What?
Meaning that your Power Supply Unit (Where the power cable goes into) might needs to be replaced.
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But it works fine. All the fans are running. Everything is attached..
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Do you see a POST screen at startup?
Power Good Signal
This is the cause of numerous PC problems where lights and fans are operating but it won't boot. This occurs because the power good signal is not received.
When the power supply first starts up, it takes some time for the components to get "up to speed" and start generating the proper DC voltages that the computer needs to operate. Before this time, if the computer were allowed to try to boot up, strange results could occur since the power might not be at the right voltage. It can take a half-second or longer for the power to stabilize, and this is an eternity to a processor that can run half a billion instructions per second! To prevent the computer from starting up prematurely, the power supply puts out a signal to the motherboard called "Power Good" (or "PowerGood", or "Power OK", or "PWR OK" and so on) after it completes its internal tests and determines that the power is ready for use. Until this signal is sent, the motherboard will refuse to start up the computer.
http://forums.whirlpool.net.au/index.cfm?a=wiki&tag=power_good_signal
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i'm not understanding this though
how do i fix this? new power supply ? or new mobo? becuase i remember before all this happened when i turned off auto restart it said something about my bios.. i copdied down the code if that would help you guys?
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Please post all of that information as well as other information you have not given whether you think it is relevant or not. We have been guessing here for a while now.
See below.
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Ok..
Well when I told one of my friends about this problem. She told me to take off auto restart so I can get the blue screen to see what it says and write down the code. It said something about the bios.. I wish I could remember exactly what it said. When I did a search on the code it gave me it said it was either a: something wrong with my bios or b: my memory.. But I put my memory in another computer and it worked fine.
So the next thing I've been trying to do is making a start up disk from this computer . But I havn't been able to get ahold of her to walk me through, and I'm not so sure if I can make a start up disk from this computer (being a windows 98) to boot a xp PC.
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But I put my memory in another computer and it worked fine.
You can't say that unless you've tested it with diagnostic software.
Windows Memory Diagnostic(Click) (http://oca.microsoft.com/en/windiag.asp)
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1st post: Won't start
2nd Post; No beeps , no sound.
Then this
But it works fine. All the fans are running. Everything is attached..
Step by step you should follow the advice given already...troubleshooting takes patience but if you jump around from one thing to the next you will go in circles...
Now you are saying you're trying to make a startup disk from this machine...if you have no beeps and no screen how is this possible ? ?
patio. 8-)
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A buddy of mne just told me that I should try to unplug the power to my mobo for like an hour and try to turn it back on so. I'm curretnly in the process of waiting.
Do you see a POST screen at startup?
Power Good Signal
This is the cause of numerous PC problems where lights and fans are operating but it won't boot. This occurs because the power good signal is not received.
When the power supply first starts up, it takes some time for the components to get "up to speed" and start generating the proper DC voltages that the computer needs to operate. Before this time, if the computer were allowed to try to boot up, strange results could occur since the power might not be at the right voltage. It can take a half-second or longer for the power to stabilize, and this is an eternity to a processor that can run half a billion instructions per second! To prevent the computer from starting up prematurely, the power supply puts out a signal to the motherboard called "Power Good" (or "PowerGood", or "Power OK", or "PWR OK" and so on) after it completes its internal tests and determines that the power is ready for use. Until this signal is sent, the motherboard will refuse to start up the computer.
http://forums.whirlpool.net.au/index.cfm?a=wiki&tag=power_good_signal
say if i have this problem. how will i be able to fix it?
1st post: Won't start
2nd Post; No beeps , no sound.
Then this
But it works fine. All the fans are running. Everything is attached..
Step by step you should follow the advice given already...troubleshooting takes patience but if you jump around from one thing to the next you will go in circles...
Now you are saying you're trying to make a startup disk from this machine...if you have no beeps and no screen how is this possible ? ?
patio. 8-)
I though that too that's why I reread this whole thread and I guess it could be the power signal to the mobo. Sorry I'm new to all this.
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also, when i plug the power cord in, it turns on automatically. i don't think it's suspose to do that is it?
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also, when i plug the power cord in, it turns on automatically. i don't think it's suspose to do that is it?
Yes.
Remove the CMOS battery...about the size of a dime on the MBoard. Wait awhile then retry.
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Okay, I just unplugged it. Will give it an hour? Sound about right?
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10 seconds will be enough.
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still ran into the same problem.
put the battery in, plugged the power cord in and it auto turned on.. but the power button in the front doesn't even light up still
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Did you try a known working PSU and booting with minimal devices attached?
If you have; you might need to replace the CPU and mainboard to see if either are faulty..
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the psu works for sure.
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still ran into the same problem.
put the battery in, plugged the power cord in and it auto turned on.. but the power button in the front doesn't even light up still
Any beeps yet ? ?
If not revert back to posts # 5 and #8 respectively...
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well i know the psu works. all the fans turn on when i turn it on.. should i try to unplug the vid card fan power?
A common misconception.
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well i know the psu works. all the fans turn on when i turn it on.. should i try to unplug the vid card fan power?
Fans barely draw any power, the risk of damaging something is greater than the possibility of your problem being caused by a fan me thinks.
Switch the PSU and see if the problem persists. Just because you get light and fans doesn't mean the PSU is 100%.
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remove the power from the dvd / cd burner would help?
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Bare minimum only. Videocard, RAM, Processor and mainboard.
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I gave up trying to do it all my self just going to take it to a tech now. >:( Thanks for the help though guys!
Sonny
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No problem, too bad you've given up but come back anytime if you have other problems.
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I gave up trying to do it all my self just going to take it to a tech now.
SOmetimes that is the best solution