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Windows 7: New graphic card affecting overclock

28 Jun 2014   #1
3D Jed

Windows 7 pro x64 SP1
New graphic card affecting overclock

Just swapped my old Radeon HD5770 for a Gigabyte GTX750 Ti on the 4.6GHz o/c 2600K system in my specs. Wouldn't boot with new card (went into a 5 sec on/off loop). It's a good psu (Coolermaster GX750).Things I've tried:

Reset BIOS to defaults (no o/c) and it booted.

Mobo has an OC Genie button that boosts clock speed to 4.2GHz. Booted on that setting but got a BSOD.

Flashed the BIOS from within Windows using MSI app and seems stable @ OC Genie settings, for now.

Updating the BIOS didn't wipe the saved o/c profiles (thought it would) so tried the original Aria 4.6GHz config - back to 5 sec on/off looping.

I'm a bit puzzled as to why a new gfx card would affect the o/c. This is my main machine and amongst other things is the server that drives all the other pc's in my little render farm, so needs to be stable.

I don't really want to revert to stock speed. After several years @ 4.6GHz, regular speed seems v slow as does the midway OC Genie setting.

Any ideas on this new gfx card/overclocking conundrum ?

edit - I uninstalled the drivers for the old card first using Driversweeper, and got the latest Nvidia drivers from the website.

My System SpecsSystem Spec
29 Jun 2014   #2
3D Jed

Windows 7 pro x64 SP1

I think I've solved the above problem by ignoring the Aria and MSI o/c profiles and doing a bit of DIY overclocking. Must have been something in those settings my new gfx card didn't like. I've got my pc up to 4.4GHz by just setting multiplier to 44 and volts to 1.3. Prime95 for an hour and nothing caught fire, so I'll settle for that.
My System SpecsSystem Spec

 New graphic card affecting overclock

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