Gigabyte gtx 770 and gigabyte 1150 h87 MB, just keeps rebooting

case310350

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Jan 2, 2013
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Thought I would ask one more time, have a gtx 770 gpu with a gigabyte MB i5 processor, corsair cm600 600watt PS, 46amps on 12v. 770 is in a pcie x16 slot, 8 gig ram. system runs fine without 770. system runs fine with 770 but no driver. load drive 334.89 from nvidia site, the latest. just load the video drive and right after the splash screen---reboot and will keep doing that until I uninstall the driver.

so I have not re flashed the bios yet but its a new MB. Gigagyte says this MB/GPU should work fine together. Looked at the PS with a scope, didn;t see any glitch on the 12v.. system is windows 7. Is there an update for windows 7?

well nothing left to try. Would like to try the 770 in anther system, but don't have one.

Last call for suggestions before it all goes back.