i've overclocked the gs..

[Nubius]

your probably maxing out your cards memory. You need to quit trying to push that so far and focus on your core first. If you're only hitting in the 50's on load then you're completely fine as far as temps go. These cards can hit like 80C easily.

There should be no reason your core shouldn't hit upwards of 500MHz......but you should put your memory down at 1.1GHz for the time being and see how that does.

That is of course unless you just got a card that really doesn't want to raise it's core

 

[Sh0r_ty]

my experience is with a gigabyte 128mb 6600GT PCI-E

first i would try useing rivera tuner i found that i could raise my mem when useing rivera over coolbits. i also tried useing nubitor and reflashing it with a custom bios where stock was 479/1303 (my cards best completly stable speeds 6600GT) but i didn't find that nubitor had any real improvments for me

 

[NosBoost300]

wow, you were totally right nubius, i lowered the core clock and now i'm running 550/1.14, i won't get to see the results now, but i'll be back after school to tell how it went.