Overclocking Issue (M1530 8600M GT).

So I am having some strange issues in my overclocking ventures on my Dell XPS M1530 w/ 8600M GT.

I have done lots of research, and it looks like most people can hit around 650/900 or more with not to much problems. I can too, but only when running 3dMark06. I can run it all day, max temps around 75C. But as soon as I try playing TF2 or WoW, within 5-15minutes I get a hard reboot. The type of reboot, suggests to me that it is overheating. But the highest my temps have gotten have been 79c.

Now it is possible that HWMonitor or Rivatuner are reporting the wrongs temps. And it really is overheating. I also use a laptop cooler.

I have tried various drivers (174.74, 174.93, currently running 175.70). But all have the same problem. So it does not point to that problem.

I do not really "NEED" to overclock. Expect that I connect my laptop to a Dell 24" for gaming. WoW runs fine @ 1920x1200, and max settings. But TF2 I need to turn down to 1680x1050 and with no OC'ing it drops down to low 20's when much is going on.

Now I am able to drop the clocks to about 525/850 and it is fine. But I guess I am just trying to figure out, why can I run such high clocks in 3dmark but not in real world gaming.

 

3dmark doesnt stress your gpu all the way. 1hour of gaming does.

Both CPU and GPU get stressed when gaming and since they share the same heatsink = higher temps

 

i had the ame issue, im currently clocked a 525/752
not much higher or my games do hard reboot after a while
had it a bit higher on the core...
and it displayed a driver error... while 1 hour of UT3..
so, lowered to this, and im stable... 5000 3d marks

 

cuz it's a synthetic benchmark. the only semi justifiable uses for it are to "gauge" x video to y video card or in your case to gauge overclocks and see if it "might" work reliably. in your case it's not and you're having to go a little lower than what 3dmark06 says you can overclock. it's just a benchmark. it's not real world performance.

 

I agree...
I had my clocks like this: 555/802
3d mark ran like wtf cool...
then when i opened oblivion, played like 5 mins then bam, hard restart...
that how u stress the GPU, during IN game performance

 

ahhh, very good I was just curious on why.

So is this caused by overheating? Or is it just getting unstable?

 

yes run crysis everything on high (of game is getting playing fps)
then set it to very high(to get 1-10) fps
and just watch the ocean, or go in the forest and look up in the sky (so you can see the sun beems(post-processing)
on the gamefor about 1-2hours

and if you computer runs fine then it's fine

remember you're not playing the game to win you trying to stress your computer

 

Probably unstable...
Cards are design for high temps, IMO.

 

650/900 is a bloody high overclock though. But yea, I found that 3DMark isn't so reliable for testing for artefacts. When I was using Windows Vista, my 600/900 clock could run perfectly fine in 3DMark06. However less than 15 seconds of running CS:S (video stress test) or ATITool (that hairy cube) my screen freezes.

Anyway, I'm back in Windows XP Professional and my 600/900 clock seems perfectly stable here. I can play COD4 for 5+ hours without any problems...

 

It's probably just unstable rather than overheating. If your max temp is only 79C, that's still well within safe operating limits (<90C) and still isn't as much as some G1S users see their temps. Some games are just unstable with certain overclocks, and that's pretty much the way it is. One game may run perfectly at one clock, while another can crash/BSOD every time.

You don't really need to be overclocking for TF2 though, lol. That game runs perfectly fine (35+FPS) even at the low power 3d clocks, just running at full speed would be overkill. EDIT: Nevermind, didn't see what resolution you were running it at.

 

Umm hum... some games crash... even if you just overclock 10mhz lawl...

for example jedi academy, it does not run under overclocking, you can play for a while, but then it hard restarts... it just plays under the standard clocks.... it even goes automatically down to low power 3d clocks...

 

Like mentioned in previous posts, use AtiTool to test for artifacts, and most probably the reboot is due to an instability of the card. I would recommend that you start increasing by steps and test with AtiTool. I tested overclocking once and in the link of my signature I describe the method.

 

Great information guys! Thank you!

One more question. I have a Dell 2407WFP (24" LCD). Native is 1920x1200. Does anyone know, what resolutions scale the best? I am guessing this is monitor brand/model specific. So I may need to ask at the Dell forums.

 

Usually the best scale, or the normal scale, is that with the same ratio as the native resolution. 1920/1200=1.6 , thus any 1.6 ratio are the best scale like 1280x800, 1440x900, etc.

 

Yeah that is what I was guessing Thanks!

 

Edit: Posted in wrong thread.

 

i had this problem before, but i finally figured it out. i was stable at 710/900, but then eventually, it started crashing randomly (sometimes right when the game starts, sometimes during gaming)

i used RMClock to adjust the FID/VID adjustment to 50 usec, enabled thermal monitor 1 and 2, and set the p-state transitions method to "perform single step transitions only"

its been running really smoothly as if its on stock i think the problem is when the CPU bounces in between the different steps (FID), the varying voltages will lead to instability

see if this works for you good luck!

 

Overheating is over 90 to 100 C.

 

hy, i just tried to overclock my video card 8600m gt with atitool, and my system crashes after i set clock, even, if i move memory or core slider from atitool about 1 point higher/lower than default, then it crashes, display all goes dark, and that is all, i can do nothing at all. Just hold down the power button and then to start a system, when in desktop everything is fine, and i've tried it couple of times.

By the way i am using nvidia drivers v 177.66.

Need help people..please

 

I am running 178.24 from nvidia with laptopvideo2go modded inf never skips a beat see my sig for my score ext.

err Atitools i dont know much but just use riva tuner and maby change your drivers

 

Wait 8600M GT??? OC in a laptop is usually a very bad idea....

 

Haha your kidding right? Depends on how cool your rig can go. Overclocking by about 10-15% is ok, just keep an eye out on your temps.