possible gtx570 issue?

[Goose]

I have a problem. I have two machines, a Q9550 and a Q6600, both with Corsair TX650's and 8 gigs of ram each.

BOTH the GTX 570's work in the Q9550 machine running nvidia 275.33 drivers without issue. (no sli)

Neither card will work with the Q6600 machine. They won't even boot, just a blue screen with no information. Not able to get into the bios.

Both power cables are plugged in. Same video drivers - 275.33. I used the power cables in the case and also the ones that came in the box.

What is the problem? The Q6600 is running on a Gigabyte P45-DS3R and it's as up to date as it gets.

The Q6600 is working perfectly with an 8800 GT, will boot to desktop without issue.

Thoughts?

 

[Slystealth]

What type of PSU of using. could be it's not getting enough power.

 

[Goose]

What type of PSU of using. could be it's not getting enough power.

Corsair TX650's. (As above)

 

[~CS~]

You say the board is up to date,do you mean you have flashed it to the latest BIOS? Because some older board needed a bios update to use Fermi cards.

If your board doesn't have the latest BIOS flashed,I suggest to start there,check for betas too.

 

[Goose]

Might have been me.

So far so good.

These cards are running Very quiet and at 31c at 40% fan.

oops.

 

[klasik]

Might have been me.

So far so good.

These cards are running Very quiet and at 31c at 40% fan.

oops.

I could have sworn that even a Corsair 650W cannot handle two GTX 570s with a quad processor. Oh well, I'm glad your setup is working now. I hope you upgrade your power supply soon though

 

[Goose]

I could have sworn that even a Corsair 650W cannot handle two GTX 570s with a quad processor. Oh well, I'm glad your setup is working now. I hope you upgrade your power supply soon though

You are most likely right that a single tx650 can't handle two gtx570's.

The cards are in two separate machines.

Both running quiet and cool.