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post #1 of 6
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Hey, I've been OCin this 7600GS for a bit now and seen that on stock cooling that it runs nice and stable around 585/910. However, could it go higher and still run stable? In and around 600-640 core it sometimes forces the PC to restart and if the Ram goes anywhere higher than 940 I get artifacts. Some people have gotten their cores to 800 and 1000 on the ram, that's with custom cooling though I'm guessing right?

Well, just a few questions. First of all, how were they able to get the card that high?

With adding heatsinks to the ram modules, what paste do you use so that they stay there and they don't fall off? Some guy over at a computer store told me that it's hard to get the heat sinks to stay there.

Can you volt a videocard like you can volt a cpu so you can add even more speed to the card?

Is there a way of seeing how much power your system is using at that one time, because sometimes the computer would restart whenever the clock speed is high (could that be a power issue?).

Anyways, if anyone could help, thanks...
post #2 of 6
Question 1. With better cooling and Volt-Mods.

Question 2. You can use Ceramic paste. (not 100% sure though. i think its that one)

Question 3. ^^ answered in question 1 Volt mods allow higher clocks. If you wanna use them though... get ready to invest in after-market cooling. Then you can actually push the card.

Question 4. You can using this device ... forget the name atm but with 400Watts you are probably getting somewhat close ... its okay... but close... depending on the AMPS on each rail ... It could be a power issue.
    
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post #3 of 6
Turnoz is correct on all but 2.

If they are talking about Arctic Silver ceramic paste, that won't keep them on. It's simply a different version of a thermal interface material but it does not have any adhesive properties. You can use Arctic Silver's thermal adhesive but this is permanent so if you plan on removing those ramsinks at any time I'd stick with some good quality thermal tape.

This thread has a link to a site where you can order samples. Whether or not you can still get it remains to be seen. Ramsinks can be tricky to keep on the IC's but they dont' weigh much and a few of my friends have never had them drop off.

To elaborate on question 3, you can either volt mod your card by doing hardware modifications or by editing your BIOS. Either one will void your warranty and could damage your card. Nothing is without consequences when it comes to overclocking. If you do decide to increase voltages on your card I would insist on an aftermarket cooling system.

Also to elaborate on question 4, you don't want to skimp on your PSU. So many people think they can get away with a cheap power supply that has, for example 600 watts. Well that's great but how many amps does it have on the 12v rail, are the voltages where they should be (+/- 5% is the industry standard) and are the voltages stable even under load? Those are three key points when picking out a power supply.

It's been my experience that cheap, no name PSU's just don't cut it and in some extreme cases could ultimately do damage to your system if they decide to croak.
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post #4 of 6
haha new i was wrong about ceramic...

If I were you... i would go with a power supply upgrade before attempting any other mods as these will probably end up pulling more from the already maxed-out PSU which could mean fried hardware depending on the quality of that Power supply....

(and yes thats ironic that im saying that considering i have a 150WATT PSU for my system...)
    
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post #5 of 6
Quote:
Originally Posted by Domino View Post
Hey, I've been OCin this 7600GS for a bit now and seen that on stock cooling that it runs nice and stable around 585/910. However, could it go higher and still run stable? In and around 600-640 core it sometimes forces the PC to restart and if the Ram goes anywhere higher than 940 I get artifacts. Some people have gotten their cores to 800 and 1000 on the ram, that's with custom cooling though I'm guessing right?

Well, just a few questions. First of all, how were they able to get the card that high?

With adding heatsinks to the ram modules, what paste do you use so that they stay there and they don't fall off? Some guy over at a computer store told me that it's hard to get the heat sinks to stay there.

Can you volt a videocard like you can volt a cpu so you can add even more speed to the card?

Is there a way of seeing how much power your system is using at that one time, because sometimes the computer would restart whenever the clock speed is high (could that be a power issue?).

Anyways, if anyone could help, thanks...

It's very difficult to say whether it's a 'power issue' without swapping your psu for something decidedly better and seeing if the card overclocks higher. Personally I'd say it's unlikely that it IS the problem unless this 400W PSU is one that like 'came with the case', and even if it were, I would still kinda doubt it. The 7600gs is just not that power-hungry of a card. Random shut-offs, freezes, reboots, etc are CLASSIC signs of a gpu that is overclocked too far in my experience, so ... again, there's really only one way to find out the answer to your question.

I would say that at this point in time, I wouldn't bother trying to squeeze much more out of that card with voltmods, etc. It's just not gonna be worth the effort IMHO. The memory bandwidth (along with the pipeline count) is just too low on that card to pump out many more fps no matter what you do (unless you primarily play like >3 year old games on lower resolutions/settings)...
    
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post #6 of 6
Thread Starter 
alright, perfect, thx for the help
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