1st boot no signal 2nd boot no problem

[vibe]

Hi all,

1st off, sorry if wrong topic, think this is a mobo issue or maybe poart of it.

Having some sort of power issue on boot up, each time I power up PC, lights turn on fans wiz hard drives spin, all the normal bells and whistles but I’m reasonably sure no signal is going to my VDUs as the all go to standby after a few seconds. Power down PC wait for all to go quiet and try again, this time boots up as normal and screens work fine. Does this every boot.

I think I may have a dead battery on mobo and am replacing it as soon as I get a chance to go to the store but was hoping for any other ideas people may have.

Gigabyte K8N Ultra-SLI with F6 bios
AMD 4800+ X2 939
6600 256MB GTX
8600 256MB GT (main card)
4x512 DDR RAM (sorry don’t recall make)
SATA hard drives (again sorry no make)

Thanks

V

 

[cfvh600]

You've got 2 different video cards i see. Do you have them both installed at the same time? I doubt if a dead cmos battery will cause your system not to give out a video signal on the first boot. Does it keep all your bios settings after each shut down?

 

[o1die]

Power supply? I also have the same issue ocassionally with my current board if the room temp is below 70.

 

[vibe]

Both cards are installed use the 2nd card for multi screen not SLi didnt think about checking BIOS settings, will check tonight. I have had both cards for some months and this is a problem I've started having.

PSU is a 550 but I upgraded from a 450 again a few months back after adding a LC pump.

any other ideas guys

many thanks

V

 

[MickyDee]

Which card is the monitor plugged into ? I assume they are not SLIed ?

 

[cfvh600]

Have you tried each card on it's own?

 

[vibe]

The 8600 is main screen, and 6600 has 2 support screens (I have checked all 3 when booting, incase image is going to another VDU) No not SLi

try each card on it's own? just remove cards in turn and check its not one of them thats doing it?

 

[cfvh600]

yes remove the all the cards from your system and try each on it's own in the mobo to make sure it's not one of your cards causing the problem.