Amal Daharin Mahamood

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..

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.

Excellent work bro! Let's hope it works!

Come on guys, please support svl7!

Hey,

Unfortunately i have bad news.

According to GPU-Z sensor log, voltage never exceeds 0.925v. So no change here. Starting 3DM11 results with BSOD. Starting MSI Kombustor stress test, results with program exit.

Obviously GPU cant handle 1.1GHz @ 0.925v if stressed.

Is it possible that you missed something in bios which was left unchanged?

Amal77, in notebookforums, managed to change voltage to 0.95v, but according to him, the 1100mhz was still unstable. I have no idea, why he didnt give GPU a higher voltage, like 1.025 or something similar. Perhaps there are physical limits prohibiting this.

Thanks for a try. Too bad, it did not work.

I've tried with 1.000v, 3DMark11 finishes the benchmark on 1100MHz Core 900MHz Memory.

OC memory to 1050MHz, not stable, it hang.

Need some more test I guess.

Wondering whether it is worth it to OV to achieve extra 100MHz on core.

I registered just to say THANK YOU!

And ask for 1.05v gpu, 1100core/1000memory mhz bios.

Please.

Hahaha... yeah, please do!

Did myself my own MOD.

Phew. Damn tiring figuring out how to MOD.

Haven't fully tested its stability yet though.

I doub't that it will be stable without voltage increase. lol.

Your welcome, thanks for the donation towards T|I server costs! All users that donate are placed in the T|I Elite members group for a period of 30 days for each donation made.

No prob.

Well worth it!

Thanks to svl7.

Now I love my laptop much more.

Amal, awesome OC! Welcome to Tech|Inferno forums.

Thanks Brian!

Abit out of topic here.

But since, it started from this thread, just need to share how awesome is svl7 work!

Stock (500MHz) :

NVIDIA GeForce GT 640M LE video card benchmark result - Intel® Core i7-3520M CPU @ 2.90GHz,Sony Corporation VAIO score: P1397 3DMarks

VS

OC (900MHz) :

NVIDIA GeForce GT 640M LE video card benchmark result - Intel® Core i7-3520M CPU @ 2.90GHz,Sony Corporation VAIO score: P2231 3DMarks

90% Overclock!

THANKS TO MARCO!

Hi, and welcome to T|I!

I can take a look at it and see whether it's possible. I'm going to send you a PM with some details as it's a bit off topic here.

Great!

PM replied!

Thanks!

Hi svl7,

Will it be possible for you to mod a bios for SONY VAIO S PREMIUM with GT640M LE Kepler?

Soo many people(VAIO S Owner) will be very grateful if you can help us out.

Can't imagine if we are able to overclock a GT640M LE to a GT650M level, or maybe GTX660M(Basically same spec except the core clock and GDDR5 Memory).

Here's the link for the SONY VAIO S PREMIUM BIOS :

Sony eSupport - SVS13A15GDB - Drivers & Software

Sony eSupport - SVS13A15GDB - Support

Thanks!