Hmmm bootup issues - need some help.

Gast · 16 Aug 2010 at 19:16

Specs first;
Gigabyte X58A UD3R
i7 920
Asus 5850
Samsun F3 1TB
Patriot Viper 3 x 2GB
Coolermaster ATCS 840

Earlier today the PC (which is a new build) decided to just shut itself down. So left it a few seconds, turnd off power, took out power cables etc, left if for a minute or so and went to switch it back on.

Fans start up then 1-4 seconds later it all just dies again. So started taking stuff out and tryign to start again etc. Eventually took the DVD drive and HD out and switched on and it started up OK. Put them back in and started again and PC booted up nps.

But now Im a bit worried as to what if this happens again. Outta curiousity I went into the BIOS on my last boot up and it gave me an error message stating that certain voltages had been changed due to OC attempts etc and may make the PC unstable.... yet I havent even tried to OC as I aint got a foggy what to do.

Eventually reset the CMOS and stuff just to clear any settings etc in the BIOS but am just curious as to what people might think the issue to be?

Bad PSU/Mobo?
The OC causing problems and PC shutting down (I swear 100% Ive not tried any OC at all)

An other issue may be the CPU temp. Ive had to go back to a CPU stock cooler for a while and temps are now running pretty hot 64-70 (according to BIOS temp sensors thing) and Im wondering if the PC shut itself off coz of this.

Any ideas/thoughts would be appreciated

Gast · 16 Aug 2010 at 23:19

It's happened again. After managing to get it back up first time the pc was running for around 1 and a bit hours before it just completely switched off.

Now having the same issue of trying to restart and having things kick to life before dying again.

The problem isn't helped by the fact I don't have any replacement parts to test for faults, don't have a friends pc to use for the same purpose and not very rich atm to be Ble to just buy new parts.

I am currently goin to buy a new CPU cooler since I was planning. to and will hence rebuild pc from ground up. If it works then fantastic, if not I am in a bit of a bind. I would then need some way of trying to narrow down where the fault lies and getting it replaced. It's the narrowing down the fault tthat is the issue I guess :/

Gast · 16 Aug 2010 at 23:53

Well there is no beeps as of yet but then again I don't even think its getting ti post. It simply starts up, you can see all the fans starting up then a couple seconds later it all stops. Trying the power button again won't do anything, so I have to take all the power cables out and back in again to even gets the pc to attempt to start.

Gast · 17 Aug 2010 at 08:16

Yeah I did check the CPU cooler was fitted correctly, and I did re-apply the thermal paste. It s the push pins, so now Im wondering if it has came loose and hasnt been sitting flush.

Im in the process of getting a new CPU cooler which I will apply and see if that helps (once I can decide which 1 to get), hopefully if this is the issue it wont have buggered my Mobo or CPU :/

Gast · 23 Aug 2010 at 08:21

Just an update on this problem as its still happening.

Got my CPU cooler so went back and rebuilt the PC from the ground up. Made sure the CPU cooler etc was all seated perfectly. I also reset my CMOS and removed the motherboard battery and started with just 1 stick of RAM.

Everything seeming OK, PC was running for a few hours then just went caput again.

Ive tested each of my 3 RAM sticks on the motherboard and I have eventually found that slot 5 doesnt seem to be registering any RAM. It shows up in CPU-Z but doesnt appear in BIOS or via Windows.

I have ran tests on the RAM sticks and they have all passed a OK. (memtest and even the Windows 7 memory test)

So I decided to go with just 2 slots of RAM in slots 1 and 3 and PC seemed to be running OK for a bit before crashing again. The only constants with this is:

1) PC wont start up again immediately after crashing - required a few mins before it will come back.
2) The BIOS constantly giving messages after every crash that the voltages have been changed due to overclocking etc

As stated I have never tried to OC at all, the only thing I am doing is setting the BIOS to using XMP (to which it is setting the Voltage and timings correctly as far as I can see - ie for the Patriot Viper memory it should be set to 1.65v and 9-9-9-24 to which it seems to be set to).

I am convinced that there is either a problem with the memory or the motherboard. Due to the bad memory socket Im going to RMA the mobo at least.

Any other insights/help would be apprecaited !