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Over clocking

post #1 of 14
9/30/04 at 5:49pm
Thread Starter 
Hey all, does anyone over clock the m11 on the 8790?
1. Is it safe?
2. Can I damage the hardware by doing it?
3. Do you see a definate difference?
4. How much do you over clock?
5. Is powerstrip the way to do it?
6. According to powerstrip my card runs stock at 405/270. Is this normal for the m11?

Sorry for all the questions.
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post #2 of 14
9/30/04 at 6:09pm
here is a thread about OCing the 8790

http://notebookforums.com/showthread...rclocking+8790

hypersonic sends theres with a little different clock speed on the GPU
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post #3 of 14
9/30/04 at 6:30pm
1. It is if you know what you're doing and you know when to stop, but it's still risky and usually voids warranties
2. It is very possible and it happens frequently if you OC too much. Ask around to see what speeds have been tested to be safe.
3. There is a noticeable difference in fps, but not a big one unless you really crank up the hertz
4. maybe 25% more than stock at the most. Beyond that it's more risky, esp. in a laptop.
5. powerstrip is good, so is radlinker or w/e it's called that comes with the Omega driversand I think ATI's too.
6. Thats seems about right for the 8790 is I remeber correctly. My 4750 for example is at 472/250 so you're perfectly normal.

I love answering questions
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post #4 of 14
9/30/04 at 6:49pm
Thread Starter 
1. How do I find out what my stock speeds are for sure?
2. Who sets the default speeds?
3. Why is your stock speed so much higher than mine?
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post #5 of 14
9/30/04 at 6:50pm
1. There should be a reference to the stock speeds of the 8790 in Adam's review.
2. Sager at the factory.
3. It's just different no reason I can really think of, the 5690 is even higher.
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post #6 of 14
9/30/04 at 6:52pm
Thread Starter 
Ok thanks, one more, when I shut down power strip does the card go back to it's stock speed?
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post #7 of 14
9/30/04 at 6:54pm
I don't think so, it stays right where you left it IIRC
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post #8 of 14
9/30/04 at 6:55pm
Thread Starter 
Interesting, thanks.
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post #9 of 14
9/30/04 at 6:58pm
I tell you what, I will never overclock a notebook gpu again. I messed around with overclocking on my Sony with a 9700 and I am getting all sorts of weird problems during gaming and sometimes when I first boot. I'm for sure that the over clocking was the cause, but the risk on a notebook gpu which can't be easily or cheaply replaced is not worth any possible benefit.
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post #10 of 14
9/30/04 at 6:58pm
@burn - no prob, Ogre's always here to help

yeah you're right sonic, it's really not wise to OC a lappy unless you really don't care what happens to it ... hindshight is 20/20 for sure
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post #11 of 14
9/30/04 at 7:02pm
No adverse effects here. I think its because your an ogre.
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post #12 of 14
9/30/04 at 7:03pm
Luck of the draw I guess, plus it gets pretty hot down here in swamp country
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post #13 of 14
9/30/04 at 7:13pm
That's it. Safe overclocking depends on ambient temperatures.
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post #14 of 14
9/30/04 at 8:00pm
and a big fan. dont forget a fan.

I just overclocked to 500/274, ran 3dmark05 and no ill effects. I didnt even use an external fan. It's pretty cool in here. I'd say 65/70*F ish. i wish i had a thermometer.

Considering the 8790 is typically better at cooling than the 4750, so i bet you could crank that processor speed up almost 100 mhz.

here's a quote from Babbabresaur from way back in May. He has a 3.2 EE proc. So I bet his lappy doesnt get any cooler than yours.
Quote:
Originally Posted by Babbabresaur
with radlinker / omega drivers, I OC'd to 513 engine / 283.5 memory. Have been running it for 2 months or so without issues.
So, if he is safe running that, you should be fine overclocking yours. I dont know why Sager clocks the 8790 so low. ohwell. Just keep in mind, ambient temperatures. and if need be, get a big fan. dont forget to keep the rear propped if youre doing any intensive work. it helps with the circulation.

good luck! and dont burn anything, whatever you do!
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