MSI GT627 9800M GS overclock bioflash/Mod - How to incr voltage!

Hey guy,

I'm a long time lurker, first time poster. I just bought the GT627 and is very excited that people have been sharing their OC techs for the 9800m GS. Though I noticed that no one really broke the 10 K mark on the 3dmark06. With all possible software clocking that i did with nivdia tools, i could only run the card up to 620/920/1550 (core/mem/shad) before 3dmark just crashes on me. However since I saw a thread down in the Asus forum bout flashing their cards to GTS speed with incr in voltage inorder to support a higher clocking.. I set out and tried.

I tried force flashing with the Asus 9800mGS bios that they provided.. but no luck - windows just have screwed up graphqics.

however, i tried using nihibitor - however i noted that some people cannot get pass the 1.06V. Well there's a way to do it in nihibitor. you have to go to tools --> voltage table editor--> edit entry 4 from 1.06 to 1.11

there you will find your voltage upable to 1.11 in "extra" now. Then of course now you can up u're core/mem/shad to GTS speed and make a new bios file for flash.

Now.. I went flashing the new bios, but sometimes it weirdly says that my modded-stock bios doesn' match subID and stuff.. but I force flashed it anyways (use "nvflash -4 -5 -6 XXX.rom).

Now with the new voltage, i'm able to clock it to 630/920/1550 w/o any crash from 3dmark06, and' broke the 10K point!!!!!!

I haven't tried rerunning 3dmark for like 20 times to see stability.. but will try later tonight when i have time. temp were at around 70, but I had a cooler.. the good kind too (Zalman quiet cooler 1000)

Some ppls in Asus forum also up the voltage to 1.15- but i'm scared to do that lol.. but with the higher voltage he could OC his card to like 650 core and some other high number in the rest.

so yea.. happy OCING ppl!!! it's a great day for the GT627!

Stats-
3dmark 06 was ran under 1280X1024 cpu OC ~2.9Ghz
630/920/1550 - Dox optimized 182.05

If you guys are scared of changing u're own bio, then i'll post the one I have..

but agian DO THIS AT YOUR OWN DISCRETION, I'M NOT RESPONSIBLE FOR ANYTHING THAT HAPPENS OR U'RE LAPTOP DYING - I'M JUST HERE TO SHARE SOME GREAT INFO THAT YOU GUYS COULD TRY IF YOU UNDERSTAND THE RISKS WITH BIOMODDING AND STUFF

 

Excellent info !!! To see if it is stable, try and download software called ATI TOOLS and then run the scan test. See how long it will run at your settings before it resets the time, if you can run it for like an hour or more than I would think it would be pretty stable. Let us know how it goes. God Bless

 

ozone 3d furmark will stress your gpu, and you can run it to hearts content, with an extreme burning mode and a gpu thermometer on screen

 

Overclocking is one thing but I wouldn't touch a vmod on a laptop.

 

hey guys, i tried using furmark - temp was up in the 70s with 73 max w/o cooler on. Ran for an hour, tried to take a screenshot with F9 but didn't know where the heck the picture went.. i'll prob try it again and get a screenshot for u guys.. but no crashes or BSoD! The GT627 really has a good heat sink!! AA was set at 0 with resolution 1680 X 1050. I lowered the clock a bit to 620/920/1550 because i had BSoD with 630 core.. but now scoring at 10077 with Turbo button for 3dmark06.

Hope these info help guys! I'll get a screenshot of furmark later.. or find a way to find that screenshot i saved >.<

Oh, and the power adaptor was burning hot when I touched it.. so might need to becareful with that

 

Awesome scores man, my brand new shining gt627 gets here this friday, couldn't wait for gt628 any longer!! I might give this a try sometime after my warranty is wearing down lol, you've got guts man. Also you play FFXI and thats awesome too (Lv. 56 MNK-Gage-Gilgamesh server).

 

You needed to change your voltage to break 10K? Using Nvidia nTune, with clock set to 630/899, and processor OC'ed to 3.02, i',m getting 100315.

 

Advice, undervolt instead to get a bigger OC.

Stock volts, 640/984.
Undervolted to 0.95V, 700/984.

That's right, after undervolting the GPU is cooler and it overclocks better.

I also undervolted the rest of the GPU VIDs to 0.85V because I was hoping for a small power saving.

 

why are you bumping a 4 month old thread?

 

Because I don't want to start a new one, 4 months isn't really old (especially for the MSI-subforum).

 

Im sure its not toooo much of an inconvenience is it rorsh? i will provide a link in the msi oc thread if you guys want and see if the op has some pictures so that i could extend it with a possible nvidia oc tutorial.

 

OMG 700 MHz! You are so lucky dude! Can you share me your bios!

For me, the max speed I can get is 600/1500/800 (@ 0.92 V). There is no way for me to increase to the speed of 610/1525/800 no matter how I set the voltage in the range of 0.95 - 1.11 V. I feel like my card is locked @ the GTS speed. I tried both versions 186.XXX and 195.XXX, but it didn't work.

 

Actually 700 is not perfectly stable, 690/950 is what I run at.

I have attached the BIOS to this post for you.

I suggest installing nvidia system tools, then connect the AC power and you will have an option in the nvidia control panel > device setting:
Find optimal.

Try to keep the GPU cool.

 

Thank you moral hazard.
I used to OCed the chip by nTune. But in the recent time, I mod the card's BIOS. Well w/o extra cooling solution and @ GTS speed my GPU's never reach 75*C although I'm South East Asia.

Although the build quality is not so good, I'm more than happy w/ the cooling solution form MSI.

 

Well I just wanted to tell you guys that playing with voltages, especially on 9800GS will shorten you laptop's life, not the card's (well depends of the voltage applied). 9800GS MSI edition is with 512MB RAM, which makes it possible to consume 60W of power. This is also the max power that MXM connector without HE tab can provide. So increasing voltages leads to higher interference to appear on your motherboard, which in time will lead to its malfunctioning. All I've said proves what moral hazard said about increasing his clock rates higher with undervolt, not overvolt. But after all its your laptop

 

The GT627 has a 1gb 9800m GS.

 

Really? My mistake. But any how, this only makes things worse about overvolting.

 

Yeah, overvolting isn't something I would do to this GPU.

If I had a full MXM HE port and a cooler ATI GPU I would overvolt, but the 9800m is already a bit hot, definatly not good on your lap.

 

That said, you could always undervolt the CPU to compensate, but don't overdo the voltage level on these GPU's, were only mobile parts!
Great job though!

 

catacylsm, is not a question of compensation, you can always pick up a charger with higher output power. The motherboard's conductors are designed for specific power. Of course these calculations are made upon nominal values and there is always some extra, which we overclockers rely on. All I wanted to say is that this card is very near to motherboard's limits and people should be careful when they try ti overvolt it. That's it - Have fun!

 

I suppose haha, i guess the general message is, always be careful, especially when playing with voltages,

 

moral hazard, can you tell me the original bios settings of the 9800m gs? I bougth this card but it is modded as a 9800m gts (600-1500-800) but running 3dmark06 temps are very hot!!! 100-102°C, not good
I want to try to restore the original settings but I don't find a stock 9800m gs bios. Thanks very much for your help

 

The original bios is here:
http://forum.notebookreview.com/sager-clevo/428761-m860tu-project-9.html#post5993657

You can undervolt the GPU to make it cooler, but 100c is way too high, are you sure the heatsink makes good contact and there is no dust?

Is that 9800m an asus card, because I'm not sure if the msi vbios is compatible.

 

mrzenith, you should try extracting the VBIOS with gpu-z.
Most people say that asus laptops have the vbios built into system bios, but if someone modded the card then it must have a vbios...

btw I think the asus m50v uses somewhat more normal MXM cards but I would be doubtful still that the other vBIOS is compatible.

 

Thanks at all for quick responses and excuse me for my imperfect english!
Yes the heatsink makes a good contact and I also used the artic silver 5 thermal grease...no dust, no scratch! gpu perfect and usually I'm very strict...
I think that the problem is because my 9800m gs 512MB are @65nm NOT 55...and yes, usually vbios is merged into system general bios...in fact when I mounted a 9700m gt I needed to insert into my bios, a 9700m gt vbios, extracted from Asus G50 general bios...this time NO! the card work without insert 9800m gs bios...strange...Maybe the card has a vbios integrated :S

 

I extracted vbios with gpu-z....
how I can flash new vbios? Initially I used Easyflash at boot to flash general bios....and now?

 

Use a tool called nibitor to modify the bios and use a tool called nvflash to flash it.


EDIT: wow running at 1.15v, that seems high. I think the stock voltage for my 9800m gs was 1.06v.

 

I've already nibitor, ok for nvflash...and for to make a bootable usb stick? (excuse me for too many questions)

 

See the part here:
http://forum.notebookreview.com/asus-gaming-notebook-forum/401345-optimization-guide-asus-g51.html

Under the heading "flasing".

EDIT:

 

nice guide! thanks for all..
I'll try to underclock the card first..

 

Definitive settings : 9800m gs @580-1450-850 [email protected](ultra mode), the rest 3 settings @0.9V...3DMark score: 9966, 9966, 9964, 9959...temp not excedeed 92°C...30minutes of call of duty MW2 temps not exceeded 87-88°C...wath do you think about?

 

Yeah that looks ok (still a bit hot but it might just be the cooling in your notebook). You might want to get a notebook cooler if you ever use it on your lap.

 

I could use it when I play the games ...now I want to try to overclock my T9550 cpu...I don't know how to use "setfsb"...

 

Do you know the clock gen (PLL) that is used in your notebook?

 

No! I found only a chip with the writing :
ISL6266A
HRZ
H0840BBZ3

 

That looks like a Voltage Regulator:
http://www.intersil.com/data/fn/fn6398.pdf

Still good to find.

Pretty sure I have the same one in my notebook.