Hello, im getting a very weird problem when trying to turn my pc on. my system is a 2.4 amd processor, asus crosshair motherboard, msi geforce 7600, and a 600w rosewill powerbox. the pc worked fine for about 3-4 months then i began having boot up problems. when the problem began, whenever i shut down my pc, i would have to wait about 10 minutes before it would turn back on. it was like this for about a month and now its gotten worse. now the amount of time i would have to wait before it would boot up again depends on how long i've been using the pc. for example if i left the pc on for 5 hours i will have to wait about 5 hours before it would boot up properly again and if i use it for a couple of days then i have to wait a couple of day. when i try turning it on, all the fans starts up as if it was working properly for a few seconds then it just shuts down without anything even showing on screen. i cant even get to my bios like this. at first i thought it might be a problem with my power supply but just recently i borrowed my friends new ozc 700w power supply and i still get the same problem. im guessing it might be my board now. can anyone help? i really dont want to replace this board.

Have you tested the MEMORY STICKS ??

It's taking time for your PC's components to cool down. What is your cooling setup? Have you considered trying RAM heat syncs?

It isn't going to take 2 days for the hardware to cool down. I am having a hard time understanding the correlation between the time the computer ran and the time it needs before a reboot. If overheating is the problem it shouldn't matter how long the computer ran, just how long to cool down.
What happens when you try to boot and it won't?

Dude, you computer is overheating. Period. You need to reconsider a new plan to keep your unit cool. Check your fans, and Exhaust to make sure dust hasnt 100% blocked everything off. Than make sure your fans are spinning how they should. Check that in BIOS. Next RPL the entire fan assebly or just rethink how you want to keep you unit cool.

The gamer guy

pgckkwvdzm

I think you mean heat sinks.

DerekW

I just fixed a pc that would not boot up after it had been used. 10 minutes was needed before it would boot again. Everything turned on but the screen stayed blank.

Random crashes also occured. Does yours suffer from these whilst in use?

How many sticks of memory do you have?

If you have one stick then try moving it to another DIMM slot. This allowed my mates pc to boot up for some reason...even though the memory was faulty.

If this doesn't work then try and get a spare stick to test.

If you have more than one stick of memory, take all but one out and see if your pc boots normally. If not then alternate between sticks until it does. It is highly unlikely that you have more than one faulty stick.

If none of that boots your pc, then it is not your memory.

funkyhitman

Sometimes what you described happens because of tarnish on either the edge connectors or the sockets themselves.

The mere action of pulling them in and out can often clear this (although I usually use a pencil eraser on the edge connectors).

DerekW

I'm thinking it's your CMOS battery. Do you happen to have access to another CMOS battery? If so try popping it in and see if that helps. I'd also try the RAM idea too that others have indicated but I personally think it has do with your BIOS and your CMOS has lost it's charge.

I'm betting that if you cleared the CMOS, the next time it won't boot up, it will boot up immediately after you do that. If it's the CMOS then it's an easy fix, if not, try the RAM and if that's not it, I'd say you're right when you think it's your mobo, but try replacing the CMOS battery and also try clearing the CMOS.

To clear the CMOS, your mobo might have a button on it, like mine or a jumper that you have to short out to clear it....or you could just simply pop the battery out for 5 minutes and that will clear it too. You probably know this, but it's worth saying again....Whatever you do though, when you're working inside your computer, unplug it first! Also touch the outside of the PSU or a metal part of the case to discharge any residual electricity in your body so you won't damage your components. Like I said, you probably know this already but you can never be too safe!

-Bowen

Sorry i couldnt reply earlier, my pc still isnt booting yet. i think i will have to wait a week before it will boot again =(
i dont think its a cooling problem. i monitor the temp and condition of my pc regularly with the asus probe software and even with the temp sensors built in my case doesnt go above 30c. my pc doesnt get any random crashes. it actually works just normally when it actually boots up. i am also able to restart it without having any issues. when i shut it down is when it wont boot again. im have 2 1gigs ram chips in dual channel. i didnt consider the rams could be the problem but ill try switching it around and replacing the battery and see if that helps. thanks for all the replies.

really weird problem indeed!! try your ram on your friends PC... try it with Memtest86!!

but i dont think that ram is your problem. If PSU is not your problem, have you try disconnecting every device you have on your PC.. then try connecting a device, if it boots up, try connectiing a device one by one until you find your cause.

if that isnt working it maybe your MOBO or CPU... (if that is really true about your pc not turning in 2 days, have you consider a BIOS virus, Lol!!) hey, it may happen.=P

GL!!

There's a lot of different types of RAM about. To try yours on another machine you would need to know if it is exactly the same type.

I don't know quite why it happened but there was a post on here once where the wrong RAM was put in and it started smoking - not nice.

DerekW