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HP Recommended
HP 8200 Elite CMT
Microsoft Windows 7 (64-bit)

Hi i have a HP 8200 Elite CMT desktop and it recently stopped working. I disconnected everything but power supply and i get 4 beeps and no matter what i do i can't get anywhere else. The power supply spins up once in awhile then back to the 4 beeps. I tested the power supply using the paperclip method with green wire and black and it spins fine. Could this power supply still be gone or could it be a possible motherboard issue?  Tks

 

6 REPLIES 6
HP Recommended

Hi:

 

See the troubleshooting guide at the link below, Appendix A, page 58 for how to troubleshoot the 4 beep code error.

 

c01516072.pdf (hp.com)

 

If you have done all of those things, then #4 probably applies (bad motherboard that needs to be replaced).

 

 

HP Recommended

Tks Paul for you reply..I'm trying to narrow down the problem and i did exactly as the troubleshooting said and now computer sometimes starts up and stops and then 2 beeps or just starts and stops...I tried re-seated the heat sink and realized that there is hardly and paste on the heat sink so that's why i thought is why I'm getting 2 beeps. i tried connecting the cd-rom sata cable and doing things in steps but it immediately goes back to 4 beeps.. the computer even gave one beep and ran for 2 or 3 seconds then shutdown so I'm thinking as it stated in the troubleshooting that the mother board may be gone..

HP Recommended

You're very welcome. 

 

You may want to consider buying a used but testing and working motherboard on eBay. 

 

I bought one for my 8200 Elite CMT around 3 years ago for around  $25. 

HP Recommended

Tks i may have to do that..have you heard anything about if the heat sink doesn't seat properly on processor? when i removed my heat sink there was hardly any paste on the heat sink itself so i was thinking how can the processor be over heating if it's not even running long enough to heat up. i just tried it again with the processor fan hooked up and ram installed...the computer starts and stops 2 or 3 times then just sits there and sometimes it runs for 2 or 3 seconds and then i get 2 beeps and it starts and then stops. the next time i tried it i t started ran for 2 or 3 seconds and spun down sped up like it was taking off then slowed down ...totally got me stumped but really thinking it may be shorting out?

 

HP Recommended

You're very welcome.

 

Did you clean the heatsink and processor surfaces with alcohol, and reapply the thermal paste?

 

If so, the motherboard is probably shot.

HP Recommended

Yes i did and re-applied it using an old credit card to get a smooth coat but still get the same results. Going to wait and see if i can get a cheap second-hand MB on ebay or amazon and go from there..I hope the MB fixes the problem...

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