X1950 XTX crossfire edition

[Tobywon]

Could someone help, have a brand new motherboard P5N-T deluxe and for some reason when i plug in my graphics card and power up two red LEDs light up next to the power inlet and it doesnt post, everything powers up but doesnt post.
the graphics card works fine on a different mobo without any lights turning on.
any suggestions would be great.

 

[LoadsaMoney]

Have you tried the card in another PCI-E slot.

 

[Tobywon]

yes in all 3 slots, and 1 stick of ram in all 4 slots and a different processor, all of the parts work in my other mobo which is also an asus mobo

 

[Happy]

Is it using the same PSU, since those lights mean it's either a power issue or broken, and since it works in another mobo?

 

[Tobywon]

same psu, not even unplugging the cable its being pulled out of mobo and stuck in new one, thats why it really doesnt make any logical sense

 

[Happy]

Have you tried any other GPUs in the Asus board?

 

[Tobywon]

no sadly not, its the only thing i dont currently have access too

 

[NickK]

It's a power issue I had the same lights showing with my DFI NF4.

I have a 510W PSU and a separate 350W PSU for my X1950XTX master card.

 

[Tobywon]

im running a 580W Modular PSU, that should be more than ample to power 1 motherboard and a GPU with 1 stick of RAM even with it being the master card.
Normally runs Motherboard, zalemen fan, 3HDD, GPU, DVD ROM, all fans for antec 900 no problems what so ever.

 

[Happy]

Might as well mention it again here

I have a backup system with an AMD 6000X2 (overclocked), 4GB ram, Nforce 590 mobo, X1950XTX and it won't run off a 600W Coolermaster PSU, it just restarts in any 3D mode or after about 15-20mins of desktop use. The same system can run fine with a 8800GTX in it, and the X1950XTX will run fine in my Q6600 system off a Corsair HX620. Seems really weird especially since the Coolermaster PSU can supply 38A, and that the system worked fine when being powered by my HX620 before I upgraded.

 

[Tobywon]

hmmmm im definitly thinking its something todo with a stinky nvidia chip,