Jaan Posted December 21, 2005 Posted December 21, 2005 Mobo working fine with my antec 550W, antec 380W working too with MSI Neo2 and my DFI NF4 SLI-D, but together no boot After pressing power button, fans start working, all voltages is present except Vcore. And thats it. No beep/boot. Problem is that PWR_OK signal is below normal. (0,053Vin my case, 2+V-needed for boot) Why?- i dont now- maybe mobo needs so much power during boot-up.. I can provide manualy PWR-OK voltage by soldering 110om resistor between PWR-OK and 5VSB line in ATX- after that a have Vcore but still no boot :confused: Seems that CPU is in HALT state. mobo DFI LP UT NF3 Ultra-D S/N U52906379 PSU- Antec True 380 SP with PFC from Antec Sonata case Quote Share this post Link to post Share on other sites More sharing options...
smolt Posted December 21, 2005 Posted December 21, 2005 I dont understain? are you trying to use twp psu at the same time ? Quote Share this post Link to post Share on other sites More sharing options...
Jaan Posted December 21, 2005 Posted December 21, 2005 I dont understain? are you trying to use twp psu at the same time ? No. I just trying to upgrade from MSI neo2 to DFI NF3. Quote Share this post Link to post Share on other sites More sharing options...
smolt Posted December 21, 2005 Posted December 21, 2005 id unplug everything but the board and monter and from the bios to memtest and see if that worked to see if its under powered witch i know everyone here gonna say you have to have at least a 480 watt psu. can you send me a link to the 380 psu Quote Share this post Link to post Share on other sites More sharing options...
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