SY-KT400 Ultra Platinum Geforcefx 5900 ultra 256mb 8x agp

Mainboard:
SY-KT400 Ultra Platinum

Graphics Card:
BFGTech Geforcefx 5900 256mb

Memory:
Corsair XMS series 512mb ddr2700

Power Supply:
Antech 350wt

I just installed the card listed above, and have read about how others
are having problems with sy-kt400 ultra platinum and 8x agp. The
problem I'm having is, when I play any kind of new 3d game, the game
will stall out maybe after 5 or ten minutes of playing. I used to have
a geforce 3 ti200 that worked flawlessly, and as soon as I intalled
the new card I immediately started having problems. Also, when I power
down for the night and turn the computer on in the morning, the system
will make the first normal beep, then a second, followed immediately
by two short beeps. The system then will not post. However, if I turn
the machine off, then back on again the computer posts fine, but I
still have problems running high end games like Unreal .This never
happened before. I have even tried switching the agp voltage from 1.5
to 1.6, which really hasn't seemed to help. Has anyone had the same
problem? Any Suggestions? Could it be that the card is drawing too
much power for my power supply to handle? Any suggestions would be
greatly appreciated.

 

For openers: did you change any bios settings? Have you checked the
memory for errors? Set the memory for spd and the bus speeds to auto.
Disable fast writes, it should work. Set system performance to normal.
I had to throw out 1 g of Corsair memory. 11 bad sticks in the last
year.
Dave

 

I would suggest undersized power supply and/or bad memory.
Have you run memtest ?

I've had zero problems with this board using Ti4600 AGP8x
with 420w PS and Crucial memory

 

reload 4 in 1, reload video driver of choice. I had to run my 9500
at 1.6v, and ALL settings are manual, not auto. to each his own, but
manual setting work best for me on this motherboard. sometimes mine
doesnt post, but I hit reset and it does fine. 350w PS, so that may be
the culprit. esp if overclocking, you can run into all sorts of screwy
sht, so take that into consideration ;-)