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No POST & no video signal - Broken motherboard?
Hi,
Was wanting to confirm some of my theories about a broken motherboard and weather there was anything else I could try before giving up the ghost & taking it back. Basic specifications:- *AMD Athlon XP 2200+ *512mb Generic DDR *ecs K7VMM+ Motherboard (o/b VGA) *CD Writer *DVD Rom *64mb Geforce 440 (AGP) *40GB WD HD *300W PSU Symptoms:- *No POST *No Video (tried switching from the Geforce Card to the o/b one - same result) *There is HD activity (the case HD LED flickers, indicating activity) *All system fans come on as expected, indicating that the motherboard is at least getting power *No beep codes, even when memory stick is removed What I've done to troubleshoot:- *The obvious - checked all jumpers, which all appear to be correct *Tested the CPU, Memory & PSU in another PC (all work fine so I'd assume I canrule these out as problem devices - apart from the memory, could it be a "picky" motherboard when it comes to memory?) *Disconnected all optical disks (cdrom, writer), hard disk's & floppy and tried with just bare essentials (ie. mobo, psu, cpu, memory, vid card) - Same symptoms as above. *mobo grounding problem? - done the above this time removing the mobo from the case and placed it on an antistatic mat & tried again - no dice. From what I have tried I think that I can rule out the cpu, memory, video card, disk drives & the PSU leaving just the motherboard. I'm going to be through and re-check everything again 'just in case'.. but is there obvious that I neglected to do? or am I correct in my assumption that it is the motherboard that is at fault? |
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On Mon, 29 Sep 2003 22:53:26 +0000, Paul Mc wrote:
*The obvious - checked all jumpers, which all appear to be correct *Tested the CPU, Memory & PSU in another PC (all work fine so I'd assume I canrule these out as problem devices - apart from the memory, could it be a "picky" motherboard when it comes to memory?) *Disconnected all optical disks (cdrom, writer), hard disk's & floppy and tried with just bare essentials (ie. mobo, psu, cpu, memory, vid card) - Same symptoms as above. *mobo grounding problem? - done the above this time removing the mobo from the case and placed it on an antistatic mat & tried again - no dice. From what I have tried I think that I can rule out the cpu, memory, video card, disk drives & the PSU leaving just the motherboard. I'm going to be through and re-check everything again 'just in case'.. but is there obvious that I neglected to do? or am I correct in my assumption that it is the motherboard that is at fault? oh yea, I forgot to mention the very fist thing I tried.. clearing the cmost memory - didn't help, it had exactly the same symptoms after. - Paul Mc |
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On Mon, 29 Sep 2003 18:11:55 -0500, Strontium wrote:
I wouldn't rule out the memory, just yet. Some boards are really hard to seat memory into. I've had boards that I had to almost STAND on the modules to get them seated properly and be recognized. The memory seems to be well seated, as none of the contacts are showing above where the top of the slot is. I might take a crucial 128mb ddr stick out of my own machine and try it in this one - just in case it's one of those mobo's that is picky about memory, although the generic 512 module worked a treat in my own comp... Another thing you might consider is resetting CMOS, using the jumper on the motherboard or by pulling the battery from the board. I have reset the jumper, but haven't tried removing the battery. Would this not equate to the same thing or is plucking out the battery better than using the jumper (iirc, removing the battery takes longer to clear the cmos than using the jumper)? thanks for the help =) Paul Mc |
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The onboard video...does that run off the PCI or AGP bus? Would trying
a PCI video card, or a different AGP video card, be worth the effort? Ari -- Are you registered as a bone marrow donor? You regenerate what you donate. You are offered the chance to donate only if you match a person on the recipient list. Visit www.marrow.org or call your local Red Cross and ask about registering to be a bone marrow donor. spam trap: replace shyah_right! with hotmail when replying |
#7
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On Mon, 29 Sep 2003 22:53:26 +0000 (UTC), In this world we created
"Paul Mc" wrote : Hi, Was wanting to confirm some of my theories about a broken motherboard and weather there was anything else I could try before giving up the ghost & taking it back. Basic specifications:- *AMD Athlon XP 2200+ *512mb Generic DDR *ecs K7VMM+ Motherboard (o/b VGA) *CD Writer *DVD Rom *64mb Geforce 440 (AGP) *40GB WD HD *300W PSU Symptoms:- *No POST *No Video (tried switching from the Geforce Card to the o/b one - same result) *There is HD activity (the case HD LED flickers, indicating activity) *All system fans come on as expected, indicating that the motherboard is at least getting power *No beep codes, even when memory stick is removed What I've done to troubleshoot:- *The obvious - checked all jumpers, which all appear to be correct *Tested the CPU, Memory & PSU in another PC (all work fine so I'd assume I canrule these out as problem devices - apart from the memory, could it be a "picky" motherboard when it comes to memory?) *Disconnected all optical disks (cdrom, writer), hard disk's & floppy and tried with just bare essentials (ie. mobo, psu, cpu, memory, vid card) - Same symptoms as above. *mobo grounding problem? - done the above this time removing the mobo from the case and placed it on an antistatic mat & tried again - no dice. From what I have tried I think that I can rule out the cpu, memory, video card, disk drives & the PSU leaving just the motherboard. I'm going to be through and re-check everything again 'just in case'.. but is there obvious that I neglected to do? or am I correct in my assumption that it is the motherboard that is at fault? Check that the HSF wire is on the correct header. Pull power cord and clear CMOS again.You cannot fully clear the CMOS on ATX powered systems with power to the board. any RAM changes clear CMOS again as above. HTH -- Free Windows/PC help, It's a G not a J in jmx to reply http://www.geocities.com/sheppola/trouble.html Free songs download, http://artists.mp3s.com/artists/17/sheppard.html |
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