lonesyndal Posted August 2, 2013 Share Posted August 2, 2013 Any owners of the W230ST tried undervolting the CPU?Mines has an i7-4700MQ and currently undervolted to -80mV and decreased each multiplier by x2 for stability (without crashing while mutltasking between 2-3 games).Just wanted to know what everyone else has tried and the success they made when doing this. Quote Link to comment Share on other sites More sharing options...
junky77 Posted August 2, 2013 Share Posted August 2, 2013 Hi, yes. Did it with 120mV and got big differences in temperatures - CPU was around 8-10C cooler, even closer to 10C. That includes both CPU only tests (wPrime 1024MB) and CPU + GPU (wPrime + Kombustor) and also in games.I didn't record any significant performance hit and since the high temps of the CPU make it throttle a bit (and in rare cases throttle considerably, but it's quite hot here currently), I think the undervolting will benefit you in some cases.You can see the results in my W230ST reviewI didn't change the multiplier. Windows 7 Ultimate, 326.19 beta drivers and 311.51 WHQL drivers tested.I'm also really waiting for a new bios or something. The battery performance is obviously far from being optimal at around 3-3.5 hours. I also didn't see significant difference between lower screen brightness and 40%, indicating that some other major factor is taking place here Quote Link to comment Share on other sites More sharing options...
lonesyndal Posted August 3, 2013 Author Share Posted August 3, 2013 I crash often when undervolted to -121 or -125mV while under heavy multitasking. Been looking for one configuration that lets me do it all with my CPU. Sad that not all are made equal. Quote Link to comment Share on other sites More sharing options...
BlogDude22 Posted August 3, 2013 Share Posted August 3, 2013 I work in a test environment where we run voltage margining tests. These tests simulate over and under voltage to determine how the CPU's will behave under the different voltage conditions. We typically test at + 5% anf -5% of the specified nominal voltage. They typicall run well at these settings but when they are exceeded system hangs BSODs and failure to boot will occour. Quote Link to comment Share on other sites More sharing options...
Onyoto Posted August 3, 2013 Share Posted August 3, 2013 I posted a review here: http://forum.techinferno.com/clevo-sager-reviews-owners-lounges/4268-clevo-w230st-first-look.html#post59982 if you look at post #2 I undervolted the CPU by 80mv, this gave me +300Mhz under heavy load (8 threads, 100% utilisation) and was stable for lighter loads. I also undervolted the GPU part, so when this ramps up it doesn't take too much power away from the CPU.Obviously, while playing games, you would use the GTX765M, but for other tasks in Windows, you would be using the Intel graphics.If you undervolt furher, you may want to look at reducing the single and two core turbo frequencies to bring them in line with the quad core if you find the CPU crashes while under light or peaky tasks.I was using a 4900MQ here, the 4700MQ has lower clocks so you may see less problems with single core turbo speeds... Quote Link to comment Share on other sites More sharing options...
junky77 Posted August 3, 2013 Share Posted August 3, 2013 what software did you use?How did you undervolted the CPU?I had no problem undervolting 120mV down, though CPUs are not equal, as you mentioned Quote Link to comment Share on other sites More sharing options...
lonesyndal Posted August 3, 2013 Author Share Posted August 3, 2013 Was using Intel XTU to undervolt. Did only the CPU since GPU tends to stay off when I'm not using it (registers as 0 MHz). Quote Link to comment Share on other sites More sharing options...
steberg Posted August 4, 2013 Share Posted August 4, 2013 I'm running -100mV on GPU and -100mV Cache on my 4700, it works fine for all what I've been doing on my laptop, gaming, benchmarks etc.. But when I run the CPU Zlib benchmark in AIDA64 it will shutdown the laptop, even when I'm down to -40mV CPU. It seems to be a "good" indicator how far one can push the UV of the CPU and still being rocksolid. Quote Link to comment Share on other sites More sharing options...
junky77 Posted August 4, 2013 Share Posted August 4, 2013 Was using Intel XTU to undervolt. Did only the CPU since GPU tends to stay off when I'm not using it (registers as 0 MHz).Wait wait - 0MHZ for GPU? What about the GTX 765M? How much battery do you get with it? Quote Link to comment Share on other sites More sharing options...
lonesyndal Posted August 5, 2013 Author Share Posted August 5, 2013 Wait wait - 0MHZ for GPU? What about the GTX 765M? How much battery do you get with it?its 0MHz for the GTX 765M when not in use (left GPU-z on). 4.5 Hrs of battery life. Also, the 0MHz only worked until I updated to Windows 8 (GPU now idles at 135MHz). Quote Link to comment Share on other sites More sharing options...
junky77 Posted August 5, 2013 Share Posted August 5, 2013 I'd very like to know what you did to make it happen - OS, drivers, anythingI get 3-3.5 hours TOPS with everything turned off and the GTX 765M is almost always on 800MHZ. When I turn on the nvidia inspector, it sometimes downclock, but that's allI know more people have the same problemI'm using Windows 7, maybe that's the problem? Quote Link to comment Share on other sites More sharing options...
lonesyndal Posted August 6, 2013 Author Share Posted August 6, 2013 I'd very like to know what you did to make it happen - OS, drivers, anythingI get 3-3.5 hours TOPS with everything turned off and the GTX 765M is almost always on 800MHZ. When I turn on the nvidia inspector, it sometimes downclock, but that's allI know more people have the same problemI'm using Windows 7, maybe that's the problem?It may vary depending on the tool used to view.NvidiaInspector, mine jumps to 901MHz. On MSI Afterburner, its 245 or 135MHz. May have to wait until we can reflash the card... might work properly then. Quote Link to comment Share on other sites More sharing options...
lonesyndal Posted August 6, 2013 Author Share Posted August 6, 2013 @junky77: So I did some stuff and made my windows almost unusable. Did a refresh and it basically replaced all my registries and etc with a near brand-new windows 8 install. However, I'm no longer able to update my Nvidia drivers. Got any modded INF's that you can throw to see if it can work with my GPU? My only issue is that whenever I try to update, it starts the install and shortly ends saying it could not find my hardware (my GPU goes from 765M to Unknown Device in Device Manager). Not sure how to exactly fix this... Quote Link to comment Share on other sites More sharing options...
junky77 Posted August 6, 2013 Share Posted August 6, 2013 I used this one:Zippyshare.com - nvcvn.infBy the way, someone said a new Clevo bios is out - do you know anything about it?And why my posts are moderated ? Quote Link to comment Share on other sites More sharing options...
lonesyndal Posted August 6, 2013 Author Share Posted August 6, 2013 I used this one:Zippyshare.com - nvcvn.infBy the way, someone said a new Clevo bios is out - do you know anything about it?And why my posts are moderated ?Your first 5 posts will be moderated as a new member.As for the new BIOS. I have yet to find it. @Prema or someone may know... Quote Link to comment Share on other sites More sharing options...
Khenglish Posted August 6, 2013 Share Posted August 6, 2013 I'd very like to know what you did to make it happen - OS, drivers, anythingI get 3-3.5 hours TOPS with everything turned off and the GTX 765M is almost always on 800MHZ. When I turn on the nvidia inspector, it sometimes downclock, but that's allI know more people have the same problemI'm using Windows 7, maybe that's the problem?I'm surprised he even got 4.5h for leaving gpu-z on. Something I see done wrong in battery life analysis over and over is that people will leave on programs like gpu-z when on battery. This absolutely kills your battery life because gpu monitoring programs will prevent the dGPU from turning off. On my P150EM this makes the difference between 3.5h of battery life and 5h of battery life. You won't get quite as large of a difference since since the 680m gpu is substantially larger and draws more power, but I do still expect at least an hour improvement.If you insist on running on battery with gpu-z on, the nvidia control panel option makes a large difference. If set to "high performance" or w/e your GPU will idle at full 3d clocks much more than low power clocks than if you are set to "adaptive". Quote Link to comment Share on other sites More sharing options...
lonesyndal Posted August 6, 2013 Author Share Posted August 6, 2013 Looks like I may have to return my laptop soon... I'm unable to fix the GPU Driver issue. I can ONLY install the stock drivers from Clevo (I was able to manually update before). Attached are images of what's going on. Notice the GTX 765M vanishes and becomes "Display" in Other Devices. Anyone able to help without me sending this laptop in may get a nice donation for your help. Quote Link to comment Share on other sites More sharing options...
Amal Daharin Mahamood Posted August 6, 2013 Share Posted August 6, 2013 Looks like I may have to return my laptop soon... I'm unable to fix the GPU Driver issue. I can ONLY install the stock drivers from Clevo (I was able to manually update before).Attached are images of what's going on. Notice the GTX 765M vanishes and becomes "Display" in Other Devices.[ATTACH=CONFIG]8616[/ATTACH][ATTACH=CONFIG]8617[/ATTACH]Anyone able to help without me sending this laptop in may get a nice donation for your help.You must disable the Windows 8 Driver Signature Enforcement. 1 Quote Link to comment Share on other sites More sharing options...
lonesyndal Posted August 6, 2013 Author Share Posted August 6, 2013 You must disable the Windows 8 Driver Signature Enforcement.Nice, this fixed it exactly... thank you!PM me your paypal or something so I can send ya the donation!EDIT: This be my first time using Windows 8, so this info would be very helpful for those who will be switching over later...EDIT2: Back on topic! So my current undervolt setting: -100mV Processor Dynamic Voltage Offset, +10mV Integrated Graphics Voltage Offset. This has been very stable and keeps the temps very nice at 47-52C. Quote Link to comment Share on other sites More sharing options...
junky77 Posted August 6, 2013 Share Posted August 6, 2013 I'm surprised he even got 4.5h for leaving gpu-z on. Something I see done wrong in battery life analysis over and over is that people will leave on programs like gpu-z when on battery. This absolutely kills your battery life because gpu monitoring programs will prevent the dGPU from turning off. On my P150EM this makes the difference between 3.5h of battery life and 5h of battery life. You won't get quite as large of a difference since since the 680m gpu is substantially larger and draws more power, but I do still expect at least an hour improvement.If you insist on running on battery with gpu-z on, the nvidia control panel option makes a large difference. If set to "high performance" or w/e your GPU will idle at full 3d clocks much more than low power clocks than if you are set to "adaptive".I installed the 326.19 and I don't have these performance options in the nvidia control center. I don't remember how it was with the 311.51 drivers. What drivers are you using? Quote Link to comment Share on other sites More sharing options...
Amal Daharin Mahamood Posted August 6, 2013 Share Posted August 6, 2013 Nice, this fixed it exactly... thank you!PM me your paypal or something so I can send ya the donation! EDIT: This be my first time using Windows 8, so this info would be very helpful for those who will be switching over later... EDIT2: Back on topic! So my current undervolt setting: -100mV Processor Dynamic Voltage Offset, +10mV Integrated Graphics Voltage Offset. This has been very stable and keeps the temps very nice at 47-52C. No need for that.. 1 Quote Link to comment Share on other sites More sharing options...
lonesyndal Posted August 6, 2013 Author Share Posted August 6, 2013 No need for that.. Thanks a lot! I installed the 326.19 and I don't have these performance options in the nvidia control center. I don't remember how it was with the 311.51 drivers. What drivers are you using? Performance option is basically power management in Nvidia Advanced Settings in the Nvidia Control Panel. On the Global Settings tab, you can change the power option to Adaptive instead of Maximum Performance and etc. EDIT: So I fiddled with some settings on Power Options... here's my current test so far: Balanced Mod w/ Turbo Boost (No Power Savings for any selection while keeping 5%-100% processor power management) http://www.3dmark.com/3dm11/6976700 Test 1 Settings: -100mV Processor Offset +10mV Integrated Graphics +125MHz GPU Core Clock +500MHz GPU Memory Clock http://www.3dmark.com/3dm11/6976732 Test 2 Settings: -80mV Processor Offset +10mV Integrated Graphics Offset +135MHz GPU Core Clock +600MHz GPU Memory Clock Increased all CPU Multipliers by 2x Note: Test 2 had 6-7 artifacts (I blinked on possibly one) http://www.3dmark.com/3dm11/6976760 Test 3 Settings -70mV Processor Offset +10mV Integrated Graphics Offset +135MHz GPU Core Clock +620MHz GPU Memory Clock Increased all CPU multipliers by 2x Note: Memory above 600MHz is highly unstable. The gain is almost 20 points more... but a lot more artifacting in the heavy duty tests. Other Notes: Max CPU Temp: 87C, Max GPU Temp: 70C (According to NvidiaInspector) Quote Link to comment Share on other sites More sharing options...
junky77 Posted August 7, 2013 Share Posted August 7, 2013 @lonesyndalEDIT: my mistake. Ofcourse I have these settings, but it doesn't change anything.How do you check things if every software (GPU-Z, HWInfo, MSI Afterburner) changes the clocks? Quote Link to comment Share on other sites More sharing options...
Question Posted August 7, 2013 Share Posted August 7, 2013 Hey guys, one question about undervolting....How do you test this for stability?Let's say i undervolt a CPU and cache by too much. Laptop crashes. Will i be able to get back into windows to undo the voltage changes? Or will it just crash when trying to get back into windows? How do you reset voltage if this happens?I tI tried setting cache and multipliers to 24x, and CPU/Cache voltage to -50. However i did not notice any temperature improvements at all...with just web browsing, the core temps eventually hit 50 degrees celsius, which caused the fans to kick in. Quote Link to comment Share on other sites More sharing options...
junky77 Posted August 7, 2013 Share Posted August 7, 2013 in the worst case you can simply run Windows on safe mode and disable the XTU Quote Link to comment Share on other sites More sharing options...
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