Major problems, now it doesn' POST

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Soldato
Joined
4 Nov 2004
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Hi

PLaying some supreme commander earlier and my pc decided to crash, then crash again and lockup. After pressing th restart button it didn't POST. have reseated the ram, checked PSU connections, checked Power levels out of the molex conectors, and have reset the CMOS a number of times.

THing is that over the last week my tuniq fan has varied speed depeding on loading ()e.g. widows starting up ad going into a game, even tho it is connected to a sunbeam rheobus fan control which i haven't changed.

Leaving it in the CMOS reset position overnight, and wondering what i should do next ?

any help would be much appreciated, here is the spec

E6300 @3.4ghz (5 hours orthos small ftt stable), lapped tuniq tower.
2x 1gb team xtreem pc2-5300 sticks
asus p5b-d
HIS X1900xt
EMu 0404 modded soundcard
corsair hx520 PSU
multiple fans, some cathodes etc
 
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What happens when you press the start button? Do the fans spin up and the hard drive is accessed, but the screen stays blank?

You could try booting with one stick of ram at a time, to rule out a faulty stick.
 
Sir Random said:
What happens when you press the start button? Do the fans spin up and the hard drive is accessed, but the screen stays blank?

You could try booting with one stick of ram at a time, to rule out a faulty stick.
Click to expand...

ye all spins up, fans, lights etc, but there is no beep, so the GFX fan stays at full speed. o and i updated the first post with my spec.

Tried booting with one stick of ram in the same slot but nothing, will have to try one stick in a nother slot, but they are quite dusty.
 
take out components one at a time and boot, see if you get any beeps to tell you they're missing, if you get beeps/POST after taking out a component but then get no beeps when putting it back in, chances are its that one thats dead, if you get down to your mobo and everything else is out and still no beeps then its your psu or your mobo, try a diff psu....then its your mobo

magical method of deduction :)
 
MuSsEr said:
take out components one at a time and boot, see if you get any beeps to tell you they're missing, if you get beeps/POST after taking out a component but then get no beeps when putting it back in, chances are its that one thats dead, if you get down to your mobo and everything else is out and still no beeps then its your psu or your mobo, try a diff psu....then its your mobo

magical method of deduction :)
Click to expand...

very good response, that is indeed how the 'pros' do it :D
 
MuSsEr said:
take out components one at a time and boot, see if you get any beeps to tell you they're missing, if you get beeps/POST after taking out a component but then get no beeps when putting it back in, chances are its that one thats dead, if you get down to your mobo and everything else is out and still no beeps then its your psu or your mobo, try a diff psu....then its your mobo

magical method of deduction :)
Click to expand...

ahh i see, il take everything out of the case and re-assemble, as my pc died last time and it was that. don't have a clue why it booted up when i did it, but il try that again tomorrow. Im hoping its not the PSU, as as i mentioned earlier the tuniq fan speed seemed to vary depending on what the pc was doing, even tho its plugged into the fan controller. But measuring the molex connectors i got 12.15V and 5.1V.

cheers
 
build it and boot it one bit at a time, that way it should either post with errors or atleast beep to tell you whats missing, when it stops doing that replace the last thing you put in :)
 
MuSsEr said:
build it and boot it one bit at a time, that way it should either post with errors or atleast beep to tell you whats missing, when it stops doing that replace the last thing you put in :)
Click to expand...

ok im a little confused to whats what, as i thought that no beeps when something has been removed (e.g. gfx card) then there will be beeps. Now onto what ive done.

Took out both sticks of memory and powered up = 1 Long beep, 2 short. I have totally forgotten what sort of BIOS the P5B-D has. I was sure it was ami, but that has no 1 long 2 short beep code, it on has:

1 Long, 3 Short Beeps------You've probably just added memory to the motherboard since this is a conventional or extended memory failure. Generally this is caused by a memory chip that is not seated properly. Reseat the memory chips.
Click to expand...

OK next thing, i removed the pci-e power conector from my x900xt and took the card out then powered up........ NO beep codes !!

Stuck what to try out next ?

:)
 
the pc will beep if there is something missing....to tell you its missing

1 post beep = everything ok, nothing missing

at the moment your getting no beeps, so something is broken

try removing components and seeing if you get any beeps to tell you they're not there, if you get all the way down to just the mobo and cpu and still no beeps then its of those two which are broken....hence why nothing else works

then its simply a case of trying a new psu and if that doesn't fix it then your mobo is screwed
 
Ya ive been doing that, and RAM gave a beep code (1 long and 2 short) but removal of the gfx gave no beeps (see previous post).

Im trying some lower voltage ram, as iv been advised that it could be the p5b only giving my TEAM ram 1.8V when it needs 2V. But with the absence of beeps when i remove the gfx and power up it seems to be pointing towards that.

As well as some low voltage cheapo ddr2 4000 ram from my housemates dell, il be trying his 7900gt, so mem and ram will be eliminated. Il be trying those in the next few hours, and will be back on here probably crying about broken hardware :p

Well if it is the gfx that's dead, then i can get and RMA into ocuk (less than 1 year old) and i can purchase a better gfx for the time being, possibly an 8800gts as they seem soo cheap, and waiting for the r600 is too long for me. Or i could jsut get a cheapy x1300 and wait :D

IL BE BACK :D
 
:D

Typing on my rig now and not my girlfriends lappy. Seemed as though it was the typical p5B hard fail and not giving the ram enough volts (1.8 instead of 2v).

Tried my housemates pc2-4000 stick and it booted first time, now here is the rest of the story:

1. defaults set in BIOS then ram voltage set to 2.15V, my team ram put back in and 1 stick booted into windows.
2. Install both team sticks @ same time in dual channel = no POST
3. install 1 stick again and raise voltage to 2.25V = POST
4. installed both sticks in dual channel and it booted into windows where i am now. Only concern i have now is the thread in bandwidth about the number of D9 chips dieing with high voltage, and even 2.2v:

http://www.xtremesystems.org/forums/showthread.php?t=139544

Im going to memtest them tonight at 800mhz (400x7 =2.8ghz), and see how they are in the morning.

many thanks :D
 
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