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My PC Died !!!

John Locke Avatar
8y, 7m agoPosted 8 years, 7 months ago
Can somebody technically minded give me some advice please.

My PC went to silicon heaven sometime on friday and no amount of poking around by myself has been able to ressurect it. When i turned it on i got zip, zilch, nothing but blackness. The lights come on, the fans whirl around and thats about it. I dont even get to see the bios screen.

Now i have a Chaintech 9cjs mobo and it handily gives me an error code of FF. Now according to the manual this is either (sigh) a bios problem or more likely because i havent touched the bios is that its a cpu failure.

If it is indeed the cpu that has fried is it simply a case of slotting in a new pentium 4 and away i go or will it take some form of advanced jiggery pokery to return it to life?

Also how do i know it isnt the mobo that has fried?

Any help would be greatly appreciated.
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John Locke Avatar
8y, 7m agoPosted 8 years, 7 months ago
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#1
Sounds more like CPU, but also check the pins on the mobo arent damaged,

Also try ejecting the dvd tray as if that works it makes it less likely to be CPU
#2
have you checked your monitor connection? if nothing is coming on screen but the pc is making starting noises i'd check it out
#3
Time for an upgrade? It sounds like the mobo is having problems if it wont post bios you can try removing all components from the machine that you can, see if that gets you further also worth removing or moving the ram. You could just get a cheap barebones from ebuyer.com stick a cheap processor in and move all your devices over. You could even switch to AMD if you are short on cash :) could do that for under £100. Otherwise keep poking good luck mate.
2 Likes #4
in twenty years of engineering i have seen 4 dead processors, unless you have some reason to believe this such as excessive overclocking or a seized cpu fan that should be last on your list
best procedure to follow here is
a. make sure your monitor hasn't become unplugged or changed to another input
b. watch for the small flash of keyboard lights just after power on, if not there could be a psu failure
disconnect all non essential connectors, usb devices, mouse, printer and drives
c. reset the bios, usually just disconnect leads from psu to mainboard and pull the little battery out by gently inserting a v small screwdiver between one of the clamps of the socket that holds the battery and pushing the clamp away from the battery. if u have a few addon cards it might be best to pull them out here
if no bios show here, try another psu if no joy there looks like a mainboard
#5
maddogb
c. reset the bios, usually just disconnect leads from psu to mainboard and pull the little battery out by gently inserting a v small screwdiver between one of the clamps of the socket that holds the battery and pushing the clamp away from the battery. if no bios show here, try another psu if no joy there looks like a mainboard



Thanks for this. I did what you suggested and pulled the battery and while i was at it pulled the heatsink off the cpu to find 4 years of accumulated dust sitting underneath. After 5 mins of huffing and puffing to remove the debris from the fan i reinserted the battery + heatsink and powered it up for one last try before.... well before i started getting surgical ;-)

GENIUS !!!

You've probably saved me from a very expensive repair/renew bill so you have my eternal thanks.

Thank you.
#6
John Locke
i reinserted the battery + heatsink


With a fresh layer of thermal paste I hope?
#7
EndlessWaves
With a fresh layer of thermal paste I hope?


good point, if u have actually removed the heatsink from the cpu surface, its best practice to clean the cpu surface with some solvent(meths etc) and renew the paste
old paste will harden and replacing the hs without doing this can create dead spots where overheating will occur
This can lead to more bios corruption and may cause this fault to re-occur
#8
Ok problem has indeed returned and my pc has reverted back to its unresponsive state.

Will go out and purchase a new battery and some new paste. The paste underneath had completely dried out.

During the short time i had it running last night everything seemed to function just fine so i guess i am optimistic now that i can cure this. At least more optimistic than i was last night.
#9
Dried out is fine when it's set like that but once you break the seal then you do need to redo it since dry it won't go into the new shape.
#10
Best the pc is cool, ie not been on for an hour b4 u do this and make sure u clean the base of the heatsink as well as the cpu top

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