Overclocking a 675m?

I found http://www.overclockers.com/forums/showthread.php?t=384756 interesting reading on the subject.


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Hi

I've got something that confuses me...
When scanning for artifacts with EVGA OC Scanner X I've get no artifacts @730/1850, but when playing GTA IV i do see some artifacts?
Is there a other way for scanning artifacts ? Or is GTA IV not a good game to find it out?

Edit: Ati Tool is doing its job!

 

I downloaded Afterburner last night and played Skyrim for about 45 minutes at 700/1600. Max temp was 82C. I hope to have more time this weekend to see how far I can push it.

 

Out of curiosity, is this with stock voltage and stock coolers etc.?


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Yup, stock voltage on my P150EM with U3 cooler. I see you're quite a bit past 700/1600.

 

Ah thanks

Yeah but to be fair, I've not done enough testing for artefacts yet. I might try running the artefact test with ATI Tool for an hour or so.

I also tend to stay on stock clocks unless the game is more demanding. MSI Afterburner sits in tray and allows you to quickly select OC profiles


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Gotcha. Regarding testing, I take it Furmark isn't a good method due to the 675m throttling, right? I guess that's why I started so low and just played Skyrim for a while.

This is my first time overclocking, and MSI AB is pretty neat. The ability to save 5 profiles is a nice feature. I'll probably just run a mild OC most of the time and up the clocks when needed. I still need to fire up Max Payne 3 (if I can tear myself away from Skyrim), which would probably benefit from a higher OC.

 

Yeah Furmark throttles. I was able to play Skyrim fine without noticing any defects though. I've yet to try ATI Tool.


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Thanks for the info. I'll report back after I've had more time to spend tweaking and testing.

 

Some results of my overclock.
3Dmark Vantge free edition (demo)

Stock clocks: 620/1500 @78°c


Max clocks: 735/1850 @ 88°c (0.92v)


Ow and i did not notice any throttling.

 

I see you've over-volted. Did you adjust anything internally i.e. re-paste job, cooler upgrade etc.? Or are those scores/clocks/temps what you're getting with stock paste, cooler etc.? Thanks.


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Those are all on stock cooling and paste.
The laptop was on 2 small blocks of 2cm or 0.8inch
for more comfort when typing, and maybe a better cooling don't know if that would helped tough.

In the near future i will apply new thermal grease and pads for the memory and add an Notepal U3 cooling pad.

 

Curiosity got the better of me and I flashed my GPU BIOS with the .92v over volt.

I can achieve the following:

Core: 810MHz
Memory: 1875MHz
Load Max Temp: 66'C

That's a +30% increase from stock on the core clock and a +25% increase from stock on the memory clock.

My temps seem really low, however that is with U3 on high and it's not exactly hot in the room. I checked MSI Afterburner logs and there is no throttling, just to be sure.


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Thats a really high core clock! and extreme low temps!
What temps are u getting without your U3 cooling pad?

My highest is 97°c with Furmark fullscreen!
I can't wait to order my own U3 pad.
Does the U3 blow the air into the laptop from the bottom or suck air from it?

PS: whats you 3DMark Vantge score with OC?

 

Forgive my ignorance on the subject, but how can I check the MSI Afterburner logs to verify if there's any throttling? What, exactly, am I looking for?

I upped the clocks last night (715/1650 IIRC) and I actually ran cooler than the 82C I had when running 700/1600 (79C vs 82C). I was wondering if there was any throttling.

My U3 pulls air from under the cooler, and I have the fans positioned so that they are blowing directly on the laptop's intake vents.

 

Try HWmonitor,
Click on tools / Logs select Start Recording.
Then run Furmark or some benchmark u prefer.
Look at the core and memory clocks. U should see your core clocks dropping.

Ow Thanks for the info of your U3!

 

I'll try to check that out. No problem, and thank you for the info.

 

there we go overvolted and now your closing in on the gtx 560ti!

 

So what is the max safe temp we should be running at, if there is such a thing ?

I overclocked with Afterburner to 720/1750 and it made a big difference to playing Skyrim (I run that full hd with everything turned to the max and lots of mods inc hd textures etc).

Furmark improved from about 1119 to 1329, but my previous max temp running Skyrim was 82c and this increased to 90c. I might just invest in a cooler

 

IannEefje

Do you have a power consumption meter, try playing something like battlefield 3 or batman arkham city fully maxed and can you tell me he power consumption oc'd and at stock. It must be 180w-220w.

 

Why, so you can continue with your power consumption obsession and derogatory comments? Get off of it, and get out of this thread already. It's for 675m owners and those interested in overclocking it. You're neither.

 

I see many people who don't own a 675m on this thread, are you going to say for them to get off it. Im just amazed that a psu can handle an oc 675m. Maybe if the game was cpu intensive then it wouldn't have. I would advise the 675m owners to upgrade to a 7970m if possible then no oc required.

 

I don't see a reason to oc yet. Still interested in their findings, though.

 

Just keep it as low as possible!
U can do a foiltape mod or buy an Coorler Master U3.
I've ordered mine, and will try the foiltape mod to.

New results will come soon! But i've don't have much time now.

Just for those interested my PSU is an 220w and i don't have an instrument to measure the power consumption.

 

Mobile Graphics Cards - Benchmark List - Notebookcheck.net Tech

cinebench r10 open gl

NVIDIA GeForce GTX 675M - Notebookcheck.net Tech
SPECviewperf 11 - Catia 1920x1080 and lightwave etc

 

OK Good.. at least it's none of the gaming benchmarks.

Now we can get back to only discussing 675M OC.

 

Everyone knows the desktop 680 is a mid-range GPU marketed as high-end. It won't even use close to 300W. I don't have a XM CPU.

 

Dual 675M overclocked to 800/1800 (.92v bios)


NVIDIA GeForce GTX 675M video card benchmark result - Intel Core i7-3720QM Processor,Alienware M18xR2 score: P7946 3DMarks

CPU Temp: 80c GPU Temps: 74c/73c

 

First, you're the only person in this thread, and many other threads, that has a vendetta against the 675m and its owners, as is evident by your non-stop derogatory comments that are, at best, half truths and misguided opinions (I'm still waiting on your proof that a 660m OC'd performs as good or better than a 675m OC'd. Oh, have you figured out that an M-coupe is not in any way shape or form the same as a coupe with M-sport package?).

Second, you should absolutely not be amazed that a 180w PSU can handle the load from a 675m, OC'd or otherwise. You'd think that after months and months and MONTHS of you spewing the same crap everywhere, you'd become accustomed to the truth that it's a non-issue. Instead, you feign surprise so you can continue with what I've outlined above.

Finally, I don't give two ***** about your constantly stated opinions regarding a product that you don't own and have no interest in owning, especially when it's considered that you live with mommy and daddy and don't really front that funds to do this stuff on your own.

This thread is for 675m owners to discuss overclocking their cards. Instead, we have to put up with childish banter, here and otherwise, that detracts from the relevant information put forth by knowledgeable members of the forum.

I'm literally stunned that the mods deleted other posts but allow you to continue on. STUNNED. I typically shy away from arguing on the interwebs, even though it's serious bidness and all, but your drivel is literally too much to ignore.

 

Nice!


I was running 715/1650 yesterday for about 3.5 hours straight and had a max temp of 85C. My lights didn't dim, PSU didn't melt, and nothing exploded.

 

No worries, we're tired of it too.

 

nissangtr786,

Please refrain from posting in this thread. However, if own a notebook with a 675M, then by all means, share what relevant and real world information you have concerning overclocking the 675M.

 

first of all thats how much power its using from the wall, not how much its outputting, and second of all the first one only used 174.9 watts(from the wall), which equates to about 140 watts being actually used by the system, as most powersupplies run at about 80% efficiency, probably less considering the heat they output. and the second one uses 174.8 watts figuring that its 80% efficient.

 

Thank you, 2.0. You really are The Most Interesting Mod in the Forum

 

Hey, count me in too...

 

Yeah, but your avatar didn't work with that response. I guess you can has cheezburger

Looks like I owe someone a beer (or more if it's longer than a day)



So I was playing @ 715/1650 last night and remembered to turn up the fans on my U3 to full blast. That left me with a max temp of 82C instead of 85C that I had a few days earlier. Anyone go past 715/1650 on stock voltage? I'd like to get an idea of what the max clocks are, although I'm aware that it varies from card to card. If you can't tell, I'm a n00b when it comes to overclocking.

 

730/1800 I had it up to on stock voltage. Never went about 70'C. The U3 only made up to a -5'C difference bringing temps down to mid 60'C's.

Since over volting I've been able to keep similar temps pushing the overclock as high as 810/1875.

Living in the UK I can't help but feel we have greater joy with overclocking temperatures as the ambient temperature is low. Most of the temps I read are in the 80'C - 90'C range yet I've yet to see my temps go anywhere near 80'C.


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I run 740/1500 all the time at stock voltage. I don't like to OC the memory because it has no detectable performance impact and the memory chips are not very well cooled.

 

i actually downclock my memory, it reduces temps a little bit.

 

You're definitely at an advantage with a lower ambient temperature and an R4 with better cooling than my P150EM. Lucky you!

I see, maybe I've been going about this the wrong way. I'll try dropping the memory and upping the core then. Thanks!

 

Pretty pleased with 810/1800 max temp 78 with a U3 Cooling slate. No screen breakup.

However 850/1800 caused some colour splashes so I quit before it shut the PC down.

Stable though at 810/1800 on my Sammy NP700G7C.

 

I hate to necro... But did anyone manage to overvolt the 675m on a Clevo p150em? I can't seem to get Nbitor to think my 675m is a 580m or whatever... It's really frustrating.

 

857/1856

NVIDIA GeForce GTX 675M video card benchmark result - Intel Core i7-2720QM Processor,Micro-Star International Co., Ltd. MS-16F2

 

I know this thread is old but here how to modify your GTX 675m:

First back up your old vbios and check the build version.
If you find a newer one here http://www.techpowerup.com/vgabios/index.php?architecture=&manufacturer=&model=GTX 675M you can try to use it for your mods, so you also have the latest vbios.
Maybe your card makes some problems with a vbios from another card like the hdmi port does not work or so.... than you should flash back to your stock vbios and also use your stock vbios for the mods.
To mod it, open nibitor and feed it with the .rom file. When nibitor says "Device unknown" just click "Abort".
Click "Couldnt find Clockrates" away and select the Nvidia GTX 580m as device.
Than got to "Adv. Info" and click "Rescan BIOS".
Now you can modify the vbios with nibitor like any other Fermi based card.
After you finished go to "Adv. Info" again and change the Device ID from 1211 (GTX 580m) to your GTX 675m ones.

Hope this helps somebody out there