doctr_nick

Works like a charm but I'm still fighting with temps. 93C is the highest it's gone though. - - - Updated - - - Thats too bad that the clocks don't work correctly for you. What driver version are you using?

Tested successfully at 1030/2350. 3DMark11 7854. I found however just how important it is with clocking up the GPU to use throttlestop and uncheck the BD PROCHOT box! I forgot to uncheck that box at first and found that while this didn't impact 3DMark in any significant way, I would continually get fluctuating performance (dips into the high 20s and thirties) in Crysis 2. Reviewing my Afterburner log showed the GPU clocks holding rock stable, but the GPU usage was jumping all over the map from 98% down into the 60s and 70s at times. So you have to run throttlestop and uncheck the BD PROCHOT box. Doing this now has my GPU usage back at 98-99% constant and running Crysis 2 Dx11 Ultra with hi-res textures 50-60fps vs 35-45fps before bios mod and OC. Only issue now is heat. Running those clocks with throttlestop brings me up to 93C even with turbo fan enabled. It's too bad this particular laptop only has a single cooling fan.

So I did some experimenting this morning with excellent results. I used the modified MSI ES bios from the thread "Using your GTX 680m to safest and full potential" with clocks at 915/2250 and 1.0v overvolt and can say that things are very stable. Completed multiple runs of 3Dmark11 @ ~7200 points and ran Crysis 2 for 20 mins maxed out without a single instance of throttling or crashing. I specifically even looked at 3DMark 11 Test 1 with Afterburner and had no throttling at all. Locked stable at 915. Interestingly, after applying the bios, I couldn't install any video drivers as it said there wasn't a recognized adapter. I went over to laptopvideotogo and grabbed the newest 306.97 with a modified INF and installed just fine. So it seems, at least with my MSI GT60 that power consumption is not an issue, and perhaps the throttling is actually driver based. Forcing the driver install with a modified INF may prevent the driver from applying some of its throttling routines. Has everyone who's used this bios had to use modified drivers? Im going to test more extensively to ensure things are stable, but at the moment it's looking good. Temps are surprisingly awesome as well, hovering around 84 max load.

Im running an MSI GT60 with a 3610QM. I don't overclock the CPU at all. I just have throttlestop set to run it at the turbo multiplier (which according to the log file is 31) when gaming. I'm not so sure the CPU can actually influence the GPU as it is the other way around. Realistically the components are all connected to the motherboard which has to get power from a common source (PSU). Its how that power gets distributed that may affect things. Are the CPU and GPU intricately tied together? When clocking up the GPU, i tended to get poorer performance on occassion, and this was due to the CPU multiplier being lowered, and not throttling of the GPU. Running throttlestop for the CPU has solved this, but has not changed the behaviour of my GPU (i haven't had to lower clocks because the GPU has started throttling due to increased power consumption of the CPU). This suggests that the two may not be related and what i saw before using throttlestop could have just been a coincidence. What we know: 1) vbios with too high voltage induces throttling 2) heavy OC on stock voltage induces throttling 3) keeping stock mem speed can increase max core OC before throttling 4) Running max mem overclocks however does not do the reverse (ie. doesn't induce throttling at stock core clocks) -interestingly enough All three of the above have in common a resultant increase in power consumption. So this leaves a number of questions: 1) Is it driver/vbios coded where if the chip consumes beyond it's pre-defined levels it throttles? 2) Is it designed that way at a hardware level? 3) Is it somehow a system bios limit to prevent the graphics card from sucking too much power through the motherboard? 4) Is it that our PSU's can't supply the power demands (unlikely as it would make most sense for the system to shut down as others have described) And why are we so limited with stable overclocks (and by stable, I mean without throttling or locking)? I think it has to do with the Kepler arcitecture. Keep in mind the 680m still has a whopping load of transistors squished together with the 28nm process. Any increase in clock would have a significant jump in power consumption which is probably why nvidia targeted the clocks of the 680m so low in the first place. It may just be that we have to trade throttling for frying our chips and or the power circuitry that supplies them

So I found out that it was the CPU throttling that caused the problem. Throttlestop sovles that. So it has to be a general power thing where once the components draw so much, both the CPU and GPU have throttling algorithms that kick in. It makes sense as some people have indicated that running at the same clock, using a vbios that increases voltage over stock induces more throttling. Ironically however, using Throttlestop for the CPU didn't cause my GPU to throttle any more frequent even at 850Mhz.

Does this mean that with the bios in this thread you got the card to work at 915Mhz and could run a game intitially without problem- ie. only had problems after closing and re-opening? No throttling at 915?

It's good that yours doesn't throttle while gaming. If i clock mine at 850 with stock memory, mine doesn't throttle in games either, but for some reason the framerate just isn;t what I'd expect. In Crysis 2 for example I'd get maybe 2fps more in a given scene, but then all of a sudden I get dips of like 5-10fps even though afterburner doesn't indicate any throttling of the clocks. If I leave the core at stock and OC the memory to say 2300, I get the same 2fps increase, but there's no dips, and performance overall is better. It's weird.

EDIT: Memory at stock it managed to get up to 50 on the core before throttling. I'm starting to wonder if this is perhaps just an issue with all the newer cards..?

Hey guys new to the forum here. Been reading multiple threads about overclocking/bios mod for the gtx 680m and am curious as to whether anyone has tried any vbios mod in the MSI GT60 as I see most of you are running Clevo's. I've used Afterburner to overclock, but get the same throttling issues that seem to be well described if i clock the core around 850. This is with leaving the memory at stock. If I try to do both, even the "turbo" function that the laptop comes with (which brings the core to 771) induces throttling. Do we know what seems to be the culprit for the throttling? Is it that the GPU doesn't get enough juice at higher clocks, or is it that the PSU's just aren't strong enough (the GT60 is a 180W)?