8600m GT overclock

I just oc'd my 8600m GT GDDR2 a little further, this time going to 650 / 550 for the Core and RAM respectively, from a stock speed of 475 / 400.

It seems completely stable and completed 3dmark06 with no issues, scoring 4423.

Has anyone ever manged to go further with the DDR2 version?

 

I've gotten a lot of success just pushing shaders super high but for some reason i crash in 3dmark06 during the firefly test when they go into the tree. That color blending causes the display driver to crash but it works fine in games. That and my C90 is a beast for cooling so yeah...

 

I have played around with mine too as it is a MSI GX600 using the 8600M GT with 512MB and using Riva tuner I went from stock 3DMark06 of approx. 3800 to OC'd at approx. 4500 using 675/475 Gpu/ Mem. God Bless

 

dude,so you are the reason of global worming!

 

LOL !!! Actually I have been monitoring it with N-Tune and the highest it will get is around 82 celcius, which is OK I presume ???

 

550 WOW and I thought me hitting 530 was lucky! I'm afraid to go any higher that that. At what resolution are you running the 3dMark test?

 

A little high, but definitely within the acceptable range. You don't want it to go any high than a say, 85 C, because that's really pushing it if longevity is a concern. Otherwise, you are welcome to fry your card.

 

you guys and your high memory clocks. Mine becomes unstable at 460 memory and anything past 610 core.

 

High temps on an 8600m GT is normal. nVidia quote 127C as the max operating temp. I don't overclock and still get it to run at 95C with a very high load (Playing WiC for at least 3hrs with medium DX10 settings). Although it is a 14.1" model so will have a hard time keeping cool anyway. Whilst idling it barely scrapes past 50C so I'm not too worried. I would only worry if it suddenly got hotter both playing games and at idle. Modern electronics can handle heat a lot better than electronics of a few years ago. When the first Pentium processor came out it only needed a passive 5mm heatsink to help keep it cool. If you can find me any proof that these temps are too high (and I do mean proof not just hearsay) I would be more than happy to listen and even worry about the longevity of my notebooks GPU. Hell if you are worried about it lasting you have no right overclocking it, as that little bit extra speed will cause more damage to the internal registers of the card than a few degrees over 90C. Electronics don't just die because of excessive heat they also go when you ask them to do things they weren't designed for. Overclocking being just one of them.
I appologise if this is a bit long but I'm getting fed up with people stating that "ooh, it's running nearly 100C. I think it may explode/die/stop working".

 

I agree. My system (a Compal JFL92) doesn't even bother cooling it down below 70 Celsius: whenever it reaches that temperature, the GPU fan gets turned off. It operates between 70 and the high 80's by design (I've never seen mine go over 90), so unless whoever came up with the settings screwed up big time, I doubt high temperatures will hurt it too much.

 

I'm using the free version, so I couldn't change any settings and just used the default resolution.

The temperatures seem ok too; I couldn't check them while running 3dmark, but I checked just after it finished and it was showing about 60c. I'm using the 174.31 driver from laptopvideo2go.

 

Did you run ATITool's artifacts test though? I can push my clocks quite high and see no artifacts in 3dMark06 but ATITool detects artifacts much earlier, so I don't run at those speeds.

 

Okay. I was asking because your score is significantly lower than what I'd expect from a Mem clock that's able to run that high stably. At 650/525, my score is 4571, at 650/530 I'm scoring 4672. If I was able to remain stable at 650/550, I imagine that I'd be well over 5000. Your CPU is even significantly better than mine.

 

how good is 8600m GT? I just ordered a Vostro 1500 and Im wondering will I be able to play games like crysis, assassin's creed, cod4 on medium settings? What i've read so far has been really confusing.. some say that crysis for example is unplayable even at the lowest settings (10-15fps) and others say its playable even at highest settings. (no oc)

by the way my system is: core 2 duo 1.6ghz, 2GB ram, windows XP

~sorry if this is slightly off topic

 

RAM and CPU figures are low but expect to play Assassin's Creed medium-high on 1280x800 with playable framerates.

 

I have mine OC'ed at 650/500/1300. 3DMark06 score is 4600 with 1280x800 resolution and 174.74 drivers.

Can't overclock the memory more than 510 or else the games start to artifact. Overall I'm pretty impressed with the overclock. Temps max out at around 72-75C. The core might be able to hit 680 possibly? But I'm fine with the way it is now, helps out with the games.

 

yep i wanted a better CPU but that was all I can afford. Im hoping running XP instead of vista will compensate for that

 

All you with really high clocks... again, are you testing this for 10 minutes - 1 hour with ATITool's artifacts test? I can get my clocks up that high too with no artifacts in games but ATITool, a far more sensitive program, does detect them.

 

I can't go higher than 650/486 and get 4638 in 3dmark06, 174.74 drivers, max temp is 67deg. which I'm pretty happy about.

and ven

Your ram definitely won't bottleneck you and your cpu almost definitely won't either, crysis will be pretty low but the other games should be alright.

 

hmm, strange. Maybe it's throttling back or something, although it doesn't seem to be getting particaularly hot.

I'm using Ntune, so I haven't touched the shader clocks, maybe that's why?

 

Everybody still keeps overlooking my posts about ATITool's artifact testing.

 

I don't use AtiTool, and if the overclock is perfectly stable in games and 3dmark, what's the use in searching for problems?

 

If the overclock is perfectly stable then AtiTool will not detect any artifact. Now the deal is that when you run the games or 3DMark you have to pay attention to everything in order to see an artifact. AtiTool will make a sound when it encounters one, so no need to put all you attention for testing stability.

 

I skimmed. My never reaches above 75 c and that is with a +8 offset reported on i8kfan. I honestly don't recommended running a GPU at the level of heat that you can boil water with. Sure it is below the maximum limit, but that's still too high for me, longevity is definitely a concern in my book.

 

Because ATITool detects artifacts that may be invisible to your eyes. You may not see it but it could be there, and any time you're getting artifacts it's bad for your card. The reason I bring all this up is because I can raise my clocks to a point that is 100% stable in 3dMark06 and games but ATITool detects artifacts, so I set it at a point where I get no artifacts. It's safer.

 

Ah right. I only run it overclocked when I'm doing something graphically intensive like gaming though, which isn't that often, so I'm not too worried about that.

 

That's like saying you don't mind playing football with a broken ankle because you're only using it during physically strenuous activities.

 

What resolution were you running it at? I just got my hands on the full version and ran it at 1280x800 with all other settings to default, and this is what I got for my overclock:



I was running it at 1280x1024 before.

 

No, not really. There's nothing wrong with my card and I don't overclock it often enough to cause it any damage. It does not seem to get particularly hot either.

 

If it's ATITool detects artifacting, then yes, you're damaging it whether you want to believe it or not. It's not always a function of heat.

 

I don't agree. Besides, I've tried AtiTool before and it's never worked properly for me, I click 'scan for artifacts' and a window pops up for about half a second then disappears and nothing.

 

guys,when the sun dies,we ll replace it with OC Vostro 1500!

 

my result with a 8600gt gddr3 (AsusG1s) and T7700 @2,7 Ghz
5539 Marks @ 1280x1024

174.74 driver (with original infs!)
Core @ 512Mhz
Shader @ 1250 Mhz
Memory @ 880 Mhz

Max. Temp 92° as you can see on the screenshot:

 

Well I'm currently in ATITool, running for 74 minutes with no errors. How long do people usually run the artifact test?

 

That's reasonable, if you go for that long it's safe to assume you're pretty good.

 

Is there such a thing as running the test for too long? What I mean is, will it eventually artifact if you run the test for long enough?

 

If it does, then your clocks arn't stable.

 

I think the testing time is related to the amount of time you play in one shot. If on average you play 3 hours then a similar artifact testing time should follow to ensure the stability under stress.

 

Can a moderator lock this thread, please? It's gone way offtopic and filled with jealous nit-picks like jlbrightbill.

 

I definately have to say that ATi Tool is very useful. It does a great job of heating up the gpu. If you run all your games and 3dmark while sitting in a nice average temp room thats great. But what if you have your notebook in a not so nice environment but want to game?

I use ATitool to get the worse case scenario of heat you know. That way it doesnt matter where I am, I know the gpu wont overheat at the clocks I have it at.

Also, I can get my 8600M GT DDR2 up to about 600 core/1250 shader/590 memory and run 3dmark06 fine and most games...but when I go to atitool it will only run for about 8 minutes and then give back to back second to second artifacts.

With ATitool testing I know its very safe to instead run 550 core/ 1180 shader/ 550 memory. No artifacts there.

 

I'm not a jealous nit-pick, I'm trying to help the casual reader who comes by this thread to not fry their GPU because they think it's not artifacting because they can't see it.

 

FX 570m uses the same chip as the 8600m GT(GPU G84 Revision A2).
Maby it's better.

 

How do you see the temperature of your GPU? I can't find that section in RivaTuner. I don't plan on overclocking any (4071 is enough for me) but I still want to make sure it's not getting too hot.

 

hi, I have acer 5920g 933g25mn, 8600m GT ddr2 512mb. I try O/C and I don't memory clock up to 460 mhz.. why? (sorry, I know a little english)

 

My 8600m GT runs 3895 3dmarks06 ao best.
ran 576/1188/486 for this setup.

Any clues why some guys keep getting much much better marks than me?

PS: CPU is a t9300

Thanks,

Patrick

 

probably drivers ?
I have a T7300 + 8600M GT 512MB and I get 3850~ without overclocking. Drivers are version177.41.
It was not always the case. On stock drivers I had something like 3100 marks.

 

My gosh, 4427! Nice! I ran at 650 core/1300 shader/525 memory and got a score of 4405 @ 1280x1024. Dell Inspiron 1720 8600M GT DDR2 177.41. Temps at 67 degrees high max.

 

Is the DDR2 version much different to the GDDR3 version in terms of stock performance?

 

Also, cannot get memory to more than 478mhz as would experience crashing and arfifaccting. any clues why?

 

Oh and also does the GDDR3 overclock any better than the DDR2 or vice versa?