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Monitor doesn't detect PC

By dave234
May 6, 2010
  1. Hi guys so i have 2 computers with the same problem, the 2nd is an old comp, so I'm not too bothered about.

    I noticed my computer was getting a little noisey so i thought i'd clean all the dust out of it.
    1st comp
    i took the CPU and graphics card off to blow the dust out, also i blew air into the PSU fan.

    The computer boots up, sounds perfect, but about 10 minutes uptime it will still be powered but my monitor just goes into standby, i tried with my TV too and the same issue.

    2nd comp
    I hadn't used for about 1 year, i tried hooking up to monitor and it just doesn't respond, i've tried with another monitor too and still the same, also tried using a different VGA cable. monitor remains standby, But unlike my other computer this one doesn't even display for 10 minutes!

    Any ideas on what can be causing this? :suspiciou
     
  2. mailpup

    mailpup TS Special Forces Posts: 6,979   +362

    What do you mean you took the CPU off? Do you mean the heatsink? The heatsink fan? If you removed the heatsink from the CPU, did you clean off the old thermal compound and apply fresh compound? If not, the CPU is overheating.
     
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