YaD

Hi.

I got a problem with throttling of my 660m (1340|3000) at 45% of battery and lower. I use standard battery and 180W asus ac adapter. I tried to solve this problem by using of all the bios from this topic but each of them has its own specific problem:

1) 1.2125 (no throttling) - work unstable, frequency jumps from 1340 to default 1200. Temps are about 85-88 battery discharge is very fast. After reaching 45% of battery GPU clock freezes at 1200 MHz and battery stops discharging

2) 1.2000 (no throttling)- same as 1.2125

3) 1.1750 - work much more stable? Rear jumps of frequency from 1340 to default. Temps are about 83-85. Battery discharge is still fast. After reaching 45% of battery GPU throttles down to 405MHz and freezes, battery stops discharging and laptop continue to work in this mode until I charge battery more than 45%.

4) 1.1500 – works perfect. Np frequency jumps – stable 1340 at all times. Battery discharge is still fast. After reaching 45% of battery GPU throttles down to 405MHz and freezes, battery stops discharging and laptop continue to work in this mode until I charge battery more than 45%.

5) 1.1250 and lower – same as 1.1500 but with a lower GPU frequency

So could you please make a 1.150 and 1.175 v no throttling bios for svl7's with a GPU default clock at 1300MHz so it could work stable at this frequency after my battery reaches 45%

Funny thing is - if you remove the battery, clocks will not throttle down. PSU doesn't fell hotter than usual, gaming is smooth, freq is stable. I thought that it drains battery because 120W of power brick are not enough... I'll do some more testing at 1.500V and will post my findings, seems like Lenovo messed up their PSU real hard...

EDIT: It does throttle down after awhile. Why?.. Why is it even running on full freq for some time wout battery?..

You installed modded v8 bios onto 2.07 machine, rebooted (so it updated nvars and stuff), and then flashed 2.07 again? Well, i think you bricked your laptor. Try Fn+R, it might work. If it won't - go to service center and reflash bios.

- - - Updated - - -

Guys, I need your advice. After flashing my laptop does not restart automatically. It says "RESULT: The data is identical" and "FPT operation passed". But it seems that everything is working as it should and the NVIDIA inspector shows me this. Just want to make sure I did everything right. Thanks.

Yes, you did everything right.

Imgur is down, so i'm uploading everything to Google Plus, will upload to imgur once it's up.

Unfortunately, had little time to spare, so some photos (2 or 3) are blurred, but readable.

All submenus have been photographed. If i forgot some, or you want me to photo some parameters/tooltips, please ask me via PM.

https://plus.google.com/photos/105217396030396614926/albums/5905692458198249041

Update: Imgur link: http://yadr.imgur.com/

svl7, should i provide you with all advanced BIOS settings photos? I've just installed yours 8.01 mod, and it's working great!

Probably because UEFI doesn't even see win8 usb stick as a bootable device. Had the same problem - had to revert to Legacy to install Windows.

The stick definitely had an EFI loader on it, so it's very strange.

I disagree with above posts. WIn 8 is a great OS.

Albeit design of win8 is a subjective thing, it's technical improvements are objective things. It boots faster, works faster, supports more hardware, default apps have also been improved: built-in pdf reader, some nice little things like weather and news apps, win+printScreen, native files & settings synchronisation with Microsoft's cloud... For me, these things are a lot more important than design. And you can always install "Start is back", or some other start replacement plus some "boot-to-desktop" utility, if you can't stand tiles.

I bought Crucial m4 256gn mSata ssd, and it's working great in conjuction with original 1Tb hdd. The only thing is, for some reason UEFI does not allow booting from ssd, and reverting UEFI mode to "Legacy support" increases boot time by 4 seconds. For now, i've added second windows installation into hdd's bootloader, but i want to be able to boot each system indepentently. How can i do this?

"Lenovo dynamic graphics mode" overclocks 660m clock to 950 mHz. It seems that "Power Saver" energy plan downclocks the gpu to 135/405 (p2) state. And Lenovo's energy management software is kind of buggy - i too had my clocks stuck after i deinstalled it.

Will this mod reduce bios load time? Task manager shows it to be 5.6 seconds. Used to be 1.2, before i disabled secure boot.