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Compaq Deskpro - video problem?

Just started on a Compaq Deskpro, couldn't find exact model/series written anywhere. When I turn it on, it sounds like it starts just fine, no beeps or anything, also no video, monitor light just blinks green....like blinks once every 3seconds, meaning no video signal. I pull the agp card and connect to onboard graphics, same thing happens. I replaced processor, same thing. Before connecting to onboard i changed agp card with 4 others of same model(ATI Rage 128 Ultra), same thing. I've gone thru putting single sticks of RAM in it left and right, thru about 5 sticks of ram ranging from 128mb - 512mb.

Numbers/Names on case and boards:

sticker on mobo says:
CT:P3B5A2AM4LW8YH
CPQ Assy. No:213855-101
CPQ Spare No:203966-001

small silver tag, outside of case:
EXSM/815 P866 M1 BASE US
COMPAQ SERIAL NO: U126FR3ZA204

COA: Win 2k Pro 1-2 CPU

anymore questions, just ask.

Posted by on

  • heero6x6x6 Jan 14, 2009

    everything is getting correct voltage via plugs, inserted a max-size stick in(PC133/512mb), still no-go....bad mobo maybe? or bad memory slots?

  • heero6x6x6 Jan 14, 2009

    screen flickered for a sec, but went off and hasn't shown again, checked monitor against another computer, monitor is fine.

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I got ur answer that is once remove the ram and clean it and keep again. Maximum it works other wise check the load is comg frm smps or not 5v to mother board r not

Posted on Jan 13, 2009

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Posted on Jan 02, 2017

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