Hi all,
I decided to put together a new PC, which I did today. Unfortunately it looks like I have a dud piece of hardware, most likely motherboard, but with an outside chance of the cpu/psu.
The system starts up (fans wirr, power on for the soundcard/disks), for 10 seconds, after which time everything stops... waits a second or two, and then repeats!
System specs:
- Core Duo E6600
- BFG 640MB 8800GTS
- Soundblaster Audigy Xi-fi
- 2x1GB 1067MHz OCZ RAM (Pair of)
- Gigabyte GA-P35-DQ6 Motherboard (Rev 1.0)
- Various SATA drives, primary of 2 WD 500gig RE ones
-Corsair 520w PSU
Quick build history:
- Put together PC
- Turned on - all apparently fine, went into BIOS, altered various settings (turning on RAID/tweaking etc).
-Restarted
-Started windows install, realised it was going to G drive (I had numerous other disks in there), so powered down the PC (gently enough).
- Unplugged various power/SATA cables from disks, rebooted, went into BIOS to see if I could boost the RAM speed from 800, then saw the CPU temperature of 73degrees!
- Panic, turn off PC ASAP
- Watched PC start up - woh, the CPU fan isn't moving (default Intel fan with the CPU)
- Think fan must be broken, shops close soon, run to buy a new one, get back, install
- Hmm, this fan doesn't start either, google it, ahh, its a "feature" of the board, perhaps I just wasted some cash on a better fan
-At this point I notice the problem described above and start to investigate.
Tests done so far:
-Remove all power cables from anything not needed - No change
- Remove RAM - Right BIOS beep code appears - restart happens
- Remove Graphics Card + Sound card - bios beep code again, no change
- Remove motherboard from case (in case of a short) and power up - no change
- Clear CMOS - no change
- Plug in my old PSU (only 20pin ATX / 4pin ATX cables rather than 24/8), but, the same problem occurs
- Plug the new PSU into my old gear - runs for 30 seconds (wasn't plugged to a screen, just the CPU fan wirring)
- Change back to the default intel fan - no change
- Take out the 8pin ATX cable for the motherboard - it doesn't exhibit the problem
- Put in the 4 pin ATX connector rather than 8 pin - problem returns
So at this point I have a motherboard plugging into a PSU where if I put any power into the smaller ATX power socket (aka the one near the CPU) it turns itself off after 10 seconds.
My suspicion is therefore that my motherboard is broken?
Or, would this look like a CPU problem instead?
Also, is that power socket definitely needed, are we on an either/or question here, its been a while since I made a PC but my last one used both (and i assume since I can it is better to use 8 rather than 4 pins for this)?
If anyone has any advice or further tests to recommend I'd be delighted to listen as otherwise I'm going to have to wait 2-3weeks for a return to happen, which is a real pain and I'd love to not have to do it!
Thanks in advance for any help you can give
I decided to put together a new PC, which I did today. Unfortunately it looks like I have a dud piece of hardware, most likely motherboard, but with an outside chance of the cpu/psu.
The system starts up (fans wirr, power on for the soundcard/disks), for 10 seconds, after which time everything stops... waits a second or two, and then repeats!
System specs:
- Core Duo E6600
- BFG 640MB 8800GTS
- Soundblaster Audigy Xi-fi
- 2x1GB 1067MHz OCZ RAM (Pair of)
- Gigabyte GA-P35-DQ6 Motherboard (Rev 1.0)
- Various SATA drives, primary of 2 WD 500gig RE ones
-Corsair 520w PSU
Quick build history:
- Put together PC
- Turned on - all apparently fine, went into BIOS, altered various settings (turning on RAID/tweaking etc).
-Restarted
-Started windows install, realised it was going to G drive (I had numerous other disks in there), so powered down the PC (gently enough).
- Unplugged various power/SATA cables from disks, rebooted, went into BIOS to see if I could boost the RAM speed from 800, then saw the CPU temperature of 73degrees!
- Panic, turn off PC ASAP
- Watched PC start up - woh, the CPU fan isn't moving (default Intel fan with the CPU)
- Think fan must be broken, shops close soon, run to buy a new one, get back, install
- Hmm, this fan doesn't start either, google it, ahh, its a "feature" of the board, perhaps I just wasted some cash on a better fan
-At this point I notice the problem described above and start to investigate.
Tests done so far:
-Remove all power cables from anything not needed - No change
- Remove RAM - Right BIOS beep code appears - restart happens
- Remove Graphics Card + Sound card - bios beep code again, no change
- Remove motherboard from case (in case of a short) and power up - no change
- Clear CMOS - no change
- Plug in my old PSU (only 20pin ATX / 4pin ATX cables rather than 24/8), but, the same problem occurs
- Plug the new PSU into my old gear - runs for 30 seconds (wasn't plugged to a screen, just the CPU fan wirring)
- Change back to the default intel fan - no change
- Take out the 8pin ATX cable for the motherboard - it doesn't exhibit the problem
- Put in the 4 pin ATX connector rather than 8 pin - problem returns
So at this point I have a motherboard plugging into a PSU where if I put any power into the smaller ATX power socket (aka the one near the CPU) it turns itself off after 10 seconds.
My suspicion is therefore that my motherboard is broken?
Or, would this look like a CPU problem instead?
Also, is that power socket definitely needed, are we on an either/or question here, its been a while since I made a PC but my last one used both (and i assume since I can it is better to use 8 rather than 4 pins for this)?
If anyone has any advice or further tests to recommend I'd be delighted to listen as otherwise I'm going to have to wait 2-3weeks for a return to happen, which is a real pain and I'd love to not have to do it!
Thanks in advance for any help you can give