Overclocking x1600 using ATItool

[f00kie]

Originally Posted by skagen

FOr some it's set at 313/300 such as mine. MBP 2.0.

Default for imac seems to be 400/400 yes.

That's a huge overclock you have there, then.

Edit: the iMac doesn't use the Mobility version of the video card, which is probably why it's clocked higher. Also, because of the larger volume, heat can probably dissipate better.

[zenatek]

Originally Posted by f00kie

Edit: the iMac doesn't use the Mobility version of the video card, which is probably why it's clocked higher. Also, because of the larger volume, heat can probably dissipate better.

My iMac seems to be getting very hot and I have it back at the default settings.

[Turtle]

Weirdness, I used the ATI Tool beta that was posted earlier in this thread to overclock my MBP 2.0. The first setting I tried was 400/400. I left the room during 3DMark05, came back, and found the machine completely off (not asleep). I'm really hoping it didn't get too toasty and just shut down. I tried 3DMark05 again at 350/350 and it didn't shutdown, luckily. Tested again at 375/375 and got 3593 3Dmarks, stock Apple driver. Anyone else have any tips or comments?

[imapetert]

Okay, so I have been totally watching this forum for a while, getting my tips without saying anything ... so, I figure I would give you all a heads up on my experiences with over clocking my MBP.

I also noticed the incredibly sub par performance of 3Dmark05 when I ran a benchmark, and I was fairly upset by it.

So after reading the remarks here and hearing what other people have settings set at, I decided I would take a shot at over clocking with Ati Tool, along with replacing the drivers with the latest Omega Drivers.

At first I merely let Ati tool "find max core" by itself. But it got the clock up to 520 without finding any artifacts, and then the screen went black. Figured that was bad.

So I took the suggestion from someone on this forum and set it to the same clock speed as the Acer? lap top.

My clock is now at 469.8/468
which is quite a dramatic leap from the default 313/300 clock speed.

I tried setting it at 475 each, but when I set the memory clock to 475 the computer crashed.

So, on my Macbook pro, 2 gig core duo, 1 gig ram. I recieved a 3Dmark05 score of: 4148 - which is about where I expected it to be in the first place

so I have been running an ATI tool artifact test for 26 mins now, and I havent hit one yet. But, for some reason, I dont trust it.

And while the fan is quietly spinning away, the computer itself remains only lukewarm, nothing noteworthy.

[colourmatch]

Hi all, just trying to tweak my 20" 2ghz 256MB X1600, can someone please advise on the best procedure to replace the drivers with omega? shall I first uninstall the current ones, re boot and then load in the omegas?

[f00kie]

imapetert, could you please run 3DMark06, when you have time? It would be very interesting to know what your Mac scores against the Acer at the exact same settings.

And glad to hear it seems to run okay on the default speeds. That's very good to hear.

[Turtle]

Originally Posted by imapetert

I tried setting it at 475 each, but when I set the memory clock to 475 the computer crashed.

Mine has crashed twice now at 400/400. The first time was with the stock Apple ATI driver, and the next time was with the latest Omega. I wonder why yours can be clocked so much higher than mine without crashing?

[colourmatch]

Yeah with my imac 20" and standard drivers if I change the memory clock at all the screen goes gray or black and I have to restart?
Can the memory not be changed on these?

[imapetert]

Colourmatch: use Driver Cleaner to first uninstall, reboot, then install the omega drivers http://www.drivercleaner.net/

Fookie: sure thing, I guess I will try that tonight before I go to bed (its only 4:40 am) Could you repost the Acer 3Dmark06 results plez?

turtle: that is odd, what is your computer, specs, etc. Windows seems ultra flaky right now (which makes sense) so every little thing you do differently may make a dramatic difference.

[Turtle]

Originally Posted by imapetert

turtle: that is odd, what is your computer, specs, etc. Windows seems ultra flaky right now (which makes sense) so every little thing you do differently may make a dramatic difference.

MacBook Pro, 2.0 GHz, 2GB RAM, 120 GB hard drive..

I don't really think it's a software issue though. When it crashes, I hear the startup chime (like it just turned on or something) and then the screen stays black. I have to hold down the power button, wait for it to turn off, and then power it back on.

As far as Windows goes, I haven't noticed any flakiness.. it's been very stable and I haven't had it crash at any other time like this. I think it's the hardware protecting itself from overheating. I'm just wondering why different units seem to have different thermal tolerances. Maybe we'll know more as more people post their results here.