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Computer will not start or boot.....

T

Tango2201

Junior Member
A7V8X-X motherboard
AMD 1.4 Ghz T-Bird
256DDR PC2100
Radeon 9200SE 8X/4X
40GB Maxtor

After plugging everything in, I tried starting the system but it would just stay on for about a second and shut off. I wouldn't be able to attempt to turn it on again unless I unplug the cord. Any help is greatly appreciated!

 
Thunderbird Procs have a tendancy to run pretty hot. I would doublecheck your heatsink/fan . Did you apply thermal grease ? Or is the thermal pad in good shape? Kindof sounds like overheating to me.
 
Tango2201, start by checking your heatsink's direction compared to the third and fourth photos on this page. Also, you have some thermal grease or a thermal patch to transfer the heat from the CPU core to the heatsink, right?

Those symptoms could also be caused by a short-circuit condition and here are some possible causes to check:
  • the mobo is not mounted on top of standoffs and therefore the underside is grounding out on the case
  • the springy EMI contacts shown in the last three photos on that page are getting into the USB or network jacks and shorting them out (easy to check visually)
  • the case has front-USB outlets but their cable is wired funky and so they're shorting out the mobo's header (unplug the case's front outlets as a fact-finding step)
Check those and see if I hit paydirt somewhere in there 😕
 
Originally posted by: mechBgon
Tango2201, start by checking your heatsink's direction compared to the third and fourth photos on this page. Also, you have some thermal grease or a thermal patch to transfer the heat from the CPU core to the heatsink, right?

Those symptoms could also be caused by a short-circuit condition and here are some possible causes to check:
  • the mobo is not mounted on top of standoffs and therefore the underside is grounding out on the case
  • the springy EMI contacts shown in the last three photos on that page are getting into the USB or network jacks and shorting them out (easy to check visually)
  • the case has front-USB outlets but their cable is wired funky and so they're shorting out the mobo's header (unplug the case's front outlets as a fact-finding step)
Check those and see if I hit paydirt somewhere in there 😕
Click to expand...


I tried most of the things you said and had the same outcome. I will try to boot the system with the mobo outside the case now and see how that works. I sure hope that the CPU is not fried or anything else for that matter. Thanks for all your help.
 
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