7600 GS overclocked.....

[Mike51]

I OCed my 7600 GS to 575 core clock....and it never went over 60C with the ATItool 3D block. Is that safe? I only have a 300watt PSU and I left it running for 10mins and nothing happened. Should I try OCing the core even more? The stock speeds are 400/400.

And why can I OC the core so much but not the memory? I got it to 430, if I OCed it past 435 the 3D thing would mess up. Do I need those memory heatsinks?

 

[Blacken]

60c is normal. 70c and beyond is when you take a bit of caution.

Your memory may not be very overclockable, period. Memory differs from company to company.

 

[Mike51]

60c is normal. 70c and beyond is when you take a bit of caution.

Your memory may not be very overclockable, period. Memory differs from company to company.

Would getting memory heatsinks help? Like http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=1822603&CatId=496?
I checked most reviews of the card and they usually the core to 430-450. But
they used a stock cooler I think. And they usually got the memory to 500-550.
How am I OCing the core so much? Does a zalman fan help that much? The
heat may be fine, but how much power is it using? I only have a 300 watt PSU.

 

[Blacken]

It may but theres no garantee. The quality of the ram on the card differs from manufacturer to manufacturer.

It's not using much power, the 76GS is known for it's low consumption (33 watts load). As long as your +12 volt rail's amperage rating is compliant with around 18 amps and haven't got each PCI and bay filled with a component (more power usage), the card should be taking all it can. If you ever have a blue screen or the machine auto restart, thats a good sign of a underpowered power supply.

 

[Mike51]

It may but theres no garantee. The quality of the ram on the card differs from manufacturer to manufacturer.

It's not using much power, the 76GS is known for it's low consumption (33 watts load). As long as your +12 volt rail's amperage rating is compliant with around 18 amps and haven't got each PCI and bay filled with a component (more power usage), the card should be taking all it can. If you ever have a blue screen or the machine auto restart, thats a good sign of a underpowered power supply.

But I don't understand how I'm OCing the core clock so much. I tried 600MHz for the core and it still didn't go over 60C. The reviews I've seen of this card have gotten 550 MHz MAX overclocks for the core clock.

EDIT: You think it might be that ATItool's 3D test isn't putting enough stress on my card? It's getting over 230 FPS....

 

[Blacken]

Well if your just testing 600MHz on the ATI Tool test, I can see why your card may not artifact (glitch) as it's not demanding on your 76GS. But if your getting it stable in games for a good hour, it could be that you have enough +12 volt amperage to the card, yet not enough wattage.

 

[Dr_asik]

In ATI Tools, instead of running "Scan for artifacts", just run the 3D renderer as normal, with the animation. This puts more stress on the video card and is a more reliable test for checking temperatures.

Often you'll see that the core is overclockable but the memory is very sensitive. That's a classical scenario.

Ram heatsinks won't help much, if at all. Anyway, find your max overclock and then use 70% of that, for safety.

 

[scorch]

I have a gigabyte 7600gs and it is at 525mhz core and 475mhz memory. I have the stock cooler with an old pentium cooling fan on it and the the highest temp is 55 under load. Just some info that you may find helpful.

 

[Anoobis]

The 7600GS' Achilles' heal is the weak GDDR2 memory. The core is highly overclockable but the memory is not. There are rare GDDR3 7600GSs out there but they cost almost as much as a stock 7600GT and perform slightly worse. Things get even worse for the GDDR3 7600GSs when you start overclocking the 7600GT.

Be happy with what you got and pay attention to Dr_Asik's advice.

 

[Sidonas]

I don't think the 7600gt would outperform 7600gs with same clocks. Both of them has same core. And Asus 7600GS TOP (600/1,4ghz) should outperform 7600gt and costs less....

 

[Anoobis]

That statement really depends on where you're at and is also very relative to how well your GDDR3 7600GS and 7600GT can overclock. The 7600GT can be found easily just about anywhere and dirt cheap these days (as low as under $100 AR in some places). A GDDR3 7600GS cannot.

 

[Mike51]

In ATI Tools, instead of running "Scan for artifacts", just run the 3D renderer as normal, with the animation. This puts more stress on the video card and is a more reliable test for checking temperatures.

Often you'll see that the core is overclockable but the memory is very sensitive. That's a classical scenario.

Ram heatsinks won't help much, if at all. Anyway, find your max overclock and then use 70% of that, for safety.

Yea,I was running the 3D renderer.

 

[Mike51]

Be happy with what you got

Yup, I'm very happy with how much I could OC the core and the preformence I'm getting with games, even Oblivion is awesome, I'm gona play through it again, this time with more then 10-15 FPS,which my old card gave me.

 

[Sidonas]

Well I'm from small country and prices are really higher than in USA. But it's easy to get 7600GST 600/1400 for like 120$ If converting from LTL to USD

 

[Anoobis]

Cheers then!!

 

[Sidonas]

Cheers