Computer won't start

By crtmn2210 ยท 4 replies
Oct 23, 2007
  1. I just recently changed my CPU from an Athlon XP2500+ to an Athlon XP3000+. After getting it all back together the computer would not start. I push power on, the power light comes on for a second or two and then shuts off. I put the 2500+ back in and all works fine. Motherboard is a Gigabyte 7VT600-RZ. Running 1GB PC 3200 DDR memory. Windows XP Service Pack 2. Any ideas?
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    Clear the CMOS on the motherboard, and try starting up again. Make sure all the power cables to the motherboard are tight and secure. Did you apply new clean thermal paste to the new processor and it's heatsink?
  3. crtmn2210

    crtmn2210 TS Rookie Topic Starter

    Thanks for the reply. I did apply new thermal paste. At the risk of sounding like an *****, how do I reset the CMOS?
  4. pdyckman@comcas

    pdyckman@comcas TS Rookie Posts: 527

    To reset the cmos: remove the battery for about 20 seconds, then replace.
  5. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    Be sure to unplug the power supply from the AC wall plug too, when you pull the button battery out. Leave it out for a minute or so.

    You will have to reset the bios time and date after doing this CMOS reset
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