Gigabyte GA-EP45-UD3p pulses on and off

By itguy7305
Feb 8, 2009
  1. I think I have itr isolated but I want to see if anyone thinks of something I am not.

    New Gigabyte motherboard was operating fine for several hours today after a few hiccups building it last night. I reboot for some windows reason and it just started to pulse on and off no post, no nothing. I removed everything except PSU and the board\CPU same result. I test the NEW PSU and it is fine. I re-seat ATX connector same result I pull the 2x4 P4 connector and the pulsing stops but without the 2x4 P4's there is no video so I sort of need them. So, I come to the conclusion the 2x4 P4 connector is the issue. Any other thoughts? Full specs below

    Gigabyte GA-EP45-UD3P
    Intel Pentium D 940 Pressler
    3 x 1 Gig Kingston RAM (BKMK1670789)
    ATI RADEON 2400 PCI-e
    450 watt PSU (BFGR450WGSPSU)
  2. itguy7305

    itguy7305 TS Rookie Topic Starter

    Here is a kick in the ***, out of hundred of systems I have built in my biz over the last decade I have never had one short out from the board screws to the case. That was what was causing it to pulse on and off. Learn something everyday. problem solved.
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