svl7 Posted April 11, 2012 Author Share Posted April 11, 2012 Great to hear this, nice clocks! 0.925V is simply the max which is possible for this machine per VBIOS mod. Quote Link to comment Share on other sites More sharing options...
Arvid Posted May 18, 2012 Share Posted May 18, 2012 Can someone help with the Asus N55S(L), which is a never but almost identical version of the N55S-type Notebook (Geforce GT635M). Unfortunately Asus uses a different Bios to the original N55SF, so it wont work flashing the VBIOS-Mod to my Asus. Quote Link to comment Share on other sites More sharing options...
svl7 Posted May 18, 2012 Author Share Posted May 18, 2012 Hey Arvid, welcome to T|I!I just took a look at the VBIOS... There are three voltage values available in the VBIOS, 0.8125V, 0.90V and 0.925V. The 3d profile of the card is already set to the 0.925V, so it can't be set any higher in the VBIOS.Only thing that would work is lowering the voltage, so the card runs cooler.The only way to overvolt this machine is to do it directly at the hardware level. Quote Link to comment Share on other sites More sharing options...
Arvid Posted May 18, 2012 Share Posted May 18, 2012 Nevertheless beeing set to already 0.925V the Card only runs stable at 760 to 770 MHZ CPU-Clock. Even though it remains pretty cool at 68 degrees Celsius. What a pity ( Quote Link to comment Share on other sites More sharing options...
romperstomper Posted June 4, 2012 Share Posted June 4, 2012 what are you using to overclock? when I use MSI afterburner, as soon as increase the settings (even by 1), the software reverts it back to stock. I used the version of the bios flasher that you posted and the lastest bios version on this thread. thanks Quote Link to comment Share on other sites More sharing options...
drop24 Posted June 13, 2012 Share Posted June 13, 2012 This modified VBIOS didn't allow me to up my overclock at all. I had no problems flashing to the modified BIOS. I used both Winflash and the bootable USB stick method just to be sure. For those wanting to use Winflash and are having problems with the error message saying their current BIOS is newer you can just launch Winflash from command prompt with an /nodate modifier. Open command prompt and find the directory for Winflash then to launch the .exe type "Winflash /nodate" (remove the quotation marks). You'll still get the 'newer version' error message but it will let you flash the modified BIOS anyways. I hope you have better luck with this BIOS than I did because for me it didn't let me overclock any higher. The best stable overclock I can get is 780 CPU clock with a 970 memory clock with either the ASUS BIOS or with this modified one. I can't be certain that it upped the GPU voltage since GPU-Z reports 0.9000 volts with the stock VBIOS and this modified one so I suspect the app can't properly read the GPU voltage for the 555m. The limiting factor seems to be temperatures. Once I hit 77-78 degrees GPU I get freeze up no matter what the clock. What we really need is the ability to control the fan speed. Has anyone found a way to do that? Also, be sure to uninstall Power4Gear hybrid. That's ASUS power management software. Once I got rid of it and just used the power options built into Windows I noticed a large drop in my temps. You can further control temps by disabling Turbo boost of the CPU. Go into power options in Windows, be sure you're in high performance profile, and select 99% for minimum processor speed and 99% for maximum processor speed. The CPU will stay out of Turbo boost as long as it never reaches 100%. You don't need CPU Turbo boost for games since mostly it is the GPU that is limiting not the CPU. Good luck and let me know if you find a way to control fan speed. Also, if someone wanted to take apart their N55SF and test it with a volt meter I think that would be the only way to see if this modified BIOS actually changes the GPU voltage to 0.9250. I certainly doesn't seem that way since it didn't allow any higher overclock for me. Thanks for the effort for those that created the file though. It was fun to play around with. Quote Link to comment Share on other sites More sharing options...
svl7 Posted June 13, 2012 Author Share Posted June 13, 2012 This modified VBIOS didn't allow me to up my overclock at all. I had no problems flashing to the modified BIOS. The best stable overclock I can get is 780 CPU clock with a 970 memory clock with either the ASUS BIOS or with this modified one. I can't be certain that it upped the GPU voltage since GPU-Z reports 0.9000 volts with the stock VBIOS and this modified one so I suspect the app can't properly read the GPU voltage for the 555m. The limiting factor seems to be temperatures. Once I hit 77-78 degrees GPU I get freeze up no matter what the clock. Hi, and welcome to T|I, I think I know what the problem is, your system uses a different revision of this GPU, I think I can fix this. Quote Link to comment Share on other sites More sharing options...
drop24 Posted June 13, 2012 Share Posted June 13, 2012 Really? That would be fantastic. Quote Link to comment Share on other sites More sharing options...
svl7 Posted June 13, 2012 Author Share Posted June 13, 2012 I checked the BIOS again, it should work fine for both card revisions, the newer card revision is at the higher voltage level at stock settings, no mod needed. I guess you have the older card revision and the BIOS didn't flash after all.Can you provide me a screenshot of the GPU-Z main tab? Quote Link to comment Share on other sites More sharing options...
drop24 Posted June 13, 2012 Share Posted June 13, 2012 http://i.imgur.com/ju1fD.pnghttp://i.imgur.com/lEwDf.pngThe first link is GPU-Z at startup. The second is GPU-Z after running a test in MSI Kombuster. You can see the VDDC stays at a steady 0.9000v the whole time. Quote Link to comment Share on other sites More sharing options...
svl7 Posted June 13, 2012 Author Share Posted June 13, 2012 You need to reflash the bios, all vbios in it are set to the highest possible voltage value. You probably need to force the flash, I recommend flashing per DOS. Quote Link to comment Share on other sites More sharing options...
drop24 Posted June 13, 2012 Share Posted June 13, 2012 Thank you. Besides using Winflash I also flashed via bootable USB stick in DOS as mentioned early in this thread using AFLASH2 with the same results. Are you talking about a third way of flashing? Is there how-to online somewhere that I could follow?After I flash I always enter the BIOS and select 'Reset BIOS to Optimized Defaults'. Should I not being doing that step? I read elsewhere that doing that can prevent possible issues. Quote Link to comment Share on other sites More sharing options...
svl7 Posted June 13, 2012 Author Share Posted June 13, 2012 PMd you a link to a flashing tool which should work fine. Quote Link to comment Share on other sites More sharing options...
drop24 Posted June 13, 2012 Share Posted June 13, 2012 http://i.imgur.com/0Nu7M.pnghttp://i.imgur.com/iyV6x.pngBefore I flash a third time could you please look at these two screenshots from GPU Shark. They seem to suggest that the flash was successful and the card still won't pass 0.9000v. The first screenshot is at idle and the second is when running a 3D test. You can see the the profile states 0.925v but when you look at the current voltage it says 0.9000v. Any thoughts? Quote Link to comment Share on other sites More sharing options...
svl7 Posted June 13, 2012 Author Share Posted June 13, 2012 Well, it might as well be a reporting issue, you see, the voltage displayed in such tools isn't actually a measured value, it just gets reported from the driver - which gets the value from I don't know where or from the vbios, but it's definitely not an actual voltage value. The only way to really verify that you got a higher voltage is testing the overclocking limit, it should be a bit higher with the increased voltage.Still, I've also seen cards which could get overvolted by more than 0.15V and it didn't bring more than 10-20MHz... that's rare, but it can happen as well.And btw, loading the defaults after a successful flash is a good idea. Quote Link to comment Share on other sites More sharing options...
drop24 Posted June 14, 2012 Share Posted June 14, 2012 Ok thanks. I suspect that it's just heat that's limiting my overclocks. I can run higher for a while but then it freezes once it gets too hot. Are there any plans in the works for a modified BIOS to increase the fan speeds? This card doesn't seem to have the ability to control the fan from the usual apps like Hwinfo64. It might have to be changed in the BIOS.- - - Updated - - -To anyone else that finds this thread, the AFUDOS utility gives a "Bad command or file name" error when you try to flash the new BIOS. Use the Aflash2 utility posted by Silvan and it works fine. Or if you want to use Winflash open it with command prompt and use the /nodate modifier I mentioned earlier. This works fine also. 1 Quote Link to comment Share on other sites More sharing options...
drop24 Posted June 15, 2012 Share Posted June 15, 2012 Update: I modified my BIOS to have the fan kick in at 100% at a lower temperature. It made zero difference. The fan is just too wimpy to keep temps down while overclocking. I'm going to try a gel cooling pad. Quote Link to comment Share on other sites More sharing options...
Kai Chan Posted August 8, 2012 Share Posted August 8, 2012 Thanks for the guide svl7.I can't download the bios mod tho...something about permissions :/ Quote Link to comment Share on other sites More sharing options...
Founder Michael Posted August 11, 2012 Founder Share Posted August 11, 2012 Thanks for the guide svl7.I can't download the bios mod tho...something about permissions :/The promote deamon runs hourly, you should be able to download already. Can you confirm? ----Asylumized! Quote Link to comment Share on other sites More sharing options...
HaypurTiryading Posted September 6, 2012 Share Posted September 6, 2012 Thank you for bios but which bios is modded (you attached) ? Quote Link to comment Share on other sites More sharing options...
turilo Posted September 16, 2012 Share Posted September 16, 2012 just decided to join so new here! this mod still working well for everyonr? im tempted to flash it lol EDIT: @svl7 id really like to try this mod but worry if i will face any over heating BSODs that were mentioned in the thread, is it a good idea to do this mod as im still on a older 204 version of the asus n55sf bios but would definitely like to improve my gpu performance Quote Link to comment Share on other sites More sharing options...
Gores.H Posted October 3, 2012 Share Posted October 3, 2012 @turiloi also joined here to check this post out, but it seems it is very outdated?did you try it yet, did you get any BSOD? Quote Link to comment Share on other sites More sharing options...
turilo Posted October 3, 2012 Share Posted October 3, 2012 @turiloi also joined here to check this post out, but it seems it is very outdated? did you try it yet, did you get any BSOD? No I decided not to go through with it just in case, wouldn't want to be stuck with BSODS constantly :banghead: so I just decided to use msi afterburner to OC my gpu so far seems to help well Sent from my GT-I9300 using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
svl7 Posted October 3, 2012 Author Share Posted October 3, 2012 Well, a voltage increase will always result in higher temps. Whether it will work fine for your system or not completely depends on your stock temps. Usually you should replace the thermal paste before starting to overvolt. Quote Link to comment Share on other sites More sharing options...
Gores.H Posted October 3, 2012 Share Posted October 3, 2012 @svl7This is a one month old n55sf laptop, do I still need to replace the thermal paste?Sorry for the noobish question!Thanks in advance! Quote Link to comment Share on other sites More sharing options...
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