Help GPU Overclocking

[jamescarron]

First of all my Rig

 

Intel Core i5 3570K @ 3.40GHz

8.00GB Dual-Channel DDR3 Corsair Vengeance

ASUS P8H77-I Mini ITX

2GB NVIDIA GeForce GTX 660 (MSI Twin Frozr)

 

Im using MSI Afterburner and Unigine Heaven to Overclock but even after reading quite a few guides and watching a few video's I'm not getting the expected results

This is the guide im using - http://linustechtips.com/main/topic/44275-how-to-overclock-a-graphics-card- 

Havent touched Memory Clock just yet as I believe it has next to no effect. The Overclock I have running right now:

http://imgur.com/bzp72r6

 

It is crashing with a driver error although Temps arent going above 65°C and when i increase the Core Voltage it doesnt have any effect? After the driver crash it returns to 1150Mhz and i have to reload the profile.

I admit I have very limited knowledge and hope you guys can help.

[DimasRMDO]

Do you have the latest drivers?

[carguy86]

try bumping the temp limiter up and set fan speed to manual and turn it up

[DimasRMDO]

I think you're putting too much power, you can try lowering it.... I think your GPU just can't handle it, if you lower the power limit that means your core clock might reduced as well.... But at least more stable, do you see a lot of Artifacts when stress testing?

[MLGNOSCOPEHEADSHOTGETREKT]

I think you might need a driver update...

[DimasRMDO]

I think you might need a driver update...

It is crashing with a driver error

I'm thinking the driver as well.