PSU or Driver Issue?

[jackshy]

Hello, I have recently replaced the stock motherboard in my Dell XPS630i with the ASUS P5N-T Deluxe. I also replaced the video card with 2 GeForce 9800GTX 512M in SLI. I have two Seagate 500G drives in a RAID-0 config and a CD Burner,DVD Burner, and Bluetooth/Flash Card Reader.

Recently I find that when I'm gaming I can hear the fans ramp up and the video will freeze and then the system reboots. I have turned down the graphics options in the game to minimize and/or eliminate this.

My question is - is this power supply related since I still have the stock Dell PSU that shipped with the system or is it driver related?

I think that the standard PSU is 750W but I haven't checked this as yet. I'm trying to figure out where the $$ needs to go to fix this so I'm hoping you guys can point me in the right direction.

Thanks in advance for your help!

 

[Alvin Smith]

= YAY! =

 

[jackshy]

Well - I'm now confused. The RMA'd card was replaced with one that lists as 9800GTX/9800GTX+ in Windows while both original cards listed as 9800GTX+. I'm not sure if I got rooked with a card model lower than what I had as the new card is definitely a different one - two power plugs instead of one and the "chassis" on the card is much different.

Also, I can run both cards without issue until I enable SLI-mode on one of them (tried both) but once that's enabled I get a complete system lock in about 15 minutes. It no longer hard resets but the issue is not resolved.

In addition, I found this while googling the issue: http://vip.asus.com/forum/view.aspx?id=20080712133653171&board_id=1&model=P5N-T+Deluxe&page=1&SLanguage=en-us

The person having the issue is many revisions back from the current (1501) but the symptoms are virtually identical with the same board (P5N-T Deluxe).

Opinions? Do you think that I should RMA the other original board (so very not impressed with the EVGA RMA process FYI) or try an RMA on the ASUS Motherboard or both? I thought that ASUS was one of the highly recommended boards - is this not so and, if not, anyone have any replacement recommendations for a similar NVidia chipset board - I have 8G of PC2 RAM and the Intel Wolfdale 3.0GHz CPU and not enough fundage to replace the both of them as well as a new m/board.....

Thanks for the continued help...

 

[jackshy]

EDIT: The question should read - Do you think that I should RMA the other original VIDCARD...