found a way to GREATLY improve FPS stability with VERY LOW TEMPS 7811fx/7805u users only

^^, sorry ONE_J, after last night, I still tried to mod ^^.
And my result is 0.96 V for extra profile, all others are 0.9V, and it's perfect (for me ^^)
Has just install 3DMark, and my score come up to 8875 with stock clock, stock hardware from factory (7805U FX). The best thing is, my temp is 64*C Max ^^, much better than last time (71*C). Haven't tested on game yet, but 3DMark showed some respect ^^. Thank you for your guide, it's way too good.

I'll try to reduce voltage for 2D Profile, just to save more battery ^^

 

Glad it's working for you
can you please post your results and experience with the 2D volt mod? I haven't been that lucky with that profile.
thanks,

 

smoother fps at l4d 2 at 0.98 confirmed.

 

i decided not to take a risk
got that message

so now what? :0

 

lol coward. we all got that message.

 

I thought my GPU would be damaged.

 

OK so what is my experience?:
I used NibiTor 5.2 and tried to set 0,9V on Extra with GPU700/Mems900/Shader1750 but system crashd. I couldnt run the table of voltages to set for example 9.6.
I set clocks only. Voltage is untouched.

 

Besides did anyone play with FAN control settings?

 

sadly, it's not work for me, I must keep it at 0.88, and it's ok now, have not tested it for a long time, but if there is any error with it, I'll post right away.
I think, my laptop, running windows 7 pro 64bit, use profile low power 3D for almost up-time, therefor, I've tried to reduce voltage to 0.88, too ^^, with a little hope saving more power. Nothing special happen, tested with Furmark but it only test the extra profile, I don't know how to test stable with low power 3D, may be I'll stick with rivatuner

 

well I couldn't save my old vga bios because I didn't want to try the pin mod, but One_J sent me a modded bios to try and it worked perfect. Before my gpu was hitting mid 70s, now its around the low 70s. Thanks again.

 

One_J, what did you use to edit the bios you sent me? I would love to play around with it and mess with 2d clocks...

 

Yeah. What else, instead of NBTOR, did you use?
;]

 

actually Nibitor 5.2 was all I used.

though, I was not very lucky modding 2d, Throtl and 3D entries. only the Extra entry did it good for me.

would anyone out there like to try different values (cooler values) for 2d, Throtl and 3D antries and report those? clock freq and voltages.

I just kept getting an error with the "nvidia driver" in windows, so I guess either clocks or voltages were too low.

thank you,

 

I just ran 3dmark06 in win 7 and got 10153 3DMarks.

with T9900 and 9800M memory OV to 950, the rest was all stock.

last time I ran 3dmak06 I remember it was stuttering very bad but after the volt mod every 3D application is so much smoother.

even though FPS have not changed significantly, now it's like getting 30 FPS that look more like 40 FPS.

it's just amazing

 

One, how did you include the bios in the gateway bios update?

 

I used phoenix bios editor.

the procedure is rather tedious though. cause if you made changes to a bios and want to keep those changes you have to extract the bios with a hex editor, modify it, recompile then reinsert into the bios.wph with the hexeditor.

though, if you are lucky enough sometimes you can screw up the bios that bad that not even the crisis bios recovery will resucitate your laptop.

happened once to one of my laptos long time ago. the PC was still under warranty so I sent it to the manufacturer and didn't mention anything. they replaced the moderboard but definitely, it was not worth the try. I had to wait around two months to have it back.

messing with the system bios is asking for trouble.

 

Sacrifice for science ^^
Risk it to have fun, man, thank you very much for this guide, now I can play game smoother ^^, although the FPS is not very high ^^

 

you mean FPS is not high anymore becasue you can't overclock the GPU?

you can still overclock the memory up to how much your board can handle.

mine is OVed to 850 when I need it, and to 950mhz when running benchmarks.

 

Reflashed with extra to 1.04V. It's stable

 

You have which Gateway model?

 

my model is 7805u

 

there is a problem
either i choose gpu700/mem900/shader1750 without voltmod or fuctory settings with only mem O/C and lower temps. hmm. thinking.

 

Or you can drop the OC by just a little and then voltmod down just a little. So while you wont get the best of both worlds you will get a pretty good deal out of it.

if the normal is 1.12 then try 1.0 - 1.02 and see where the overclocks can go from there

 

i think there was a guide to undervolt 8800m gts on 6860 laptops, that time i was lazy to try it. lol

 

YeH. I would try to set the voltage at 1.00 but Nibitor gives me only 2 options. 1.12 or 0,9. Nothing between that.

 

I also seem to have 'EEPROM not found' error. And when I use nvflash it say: 'EEPROM ID (20,00FF): unknown' and I have the same problem osore had. I think I would need some help from you as well ONE_J, I have a 7811.

 

at 0.98v, I clock it at 680/880/1700. It gives me 11,100 3dmark

 

You have to edit the voltage tables, Tools --> Voltage Table Editor in NiBiToR

 

kuramastar: send me your email and I'll give you a modded 7811fx bios to flash in DOS

 

UNBELIEVABLE

my 7805u did it again: I decided to set the "Extra" voltage entry to 0.85V and the maximum temp I get now is 56 degrees celcius.

I will sse if I can push it further to something like 0.84V or 0.83V when I get back home.

the problem is that after a certain treshold, the voltage gets totally bypassed no matter what value it is if it is set too low, therefore the GPU starts getting hot as usual (back to 69 degrees) and the fan spinning like crazy.

so I'll try to see which is the value limit in which the GPU can work staying cool. and perhaps just to be on the safe I'll raise it from there a little bit.

so far this is what I got:

Extra= 0.85V
3D= 0.85V
Thrtl= 0.85V
2D= 0.85V

though, I haven't had much success with all the other entries.

 

I been trying to figure out how to send you a pm but I don't seem to have the option to be able to. I think I need more total post count to be able to.

 

WOW, how could it be? My laptop can't even stay with 0.9 in extra profile T_T, it keep flickering from time to time when playing 3D games like COD or Crysis. T_T
BTW, now I'm stick with 0.96 @ 640/840/1600 ~> stable ^^

 

I'm having the same error with my 6860

 

Ok so

[img=http://img526.imageshack.us/img526/2576/76742635.th.jpg]

which entry is my 9800gts? Logically thinking it is 2? I didn`t undervolt anything.

 

i also have eeprom problem, tried with gpu-z and i cant save my bios, even tried to flash with the bios from first page but no luck, still the eeprom error,

 

Yeah, i can't save with GPU-Z or in DOS with nvflash.exe. Says the same thing EEPROM not found... Has anyone here actually been able to save their original 9800M GTS 512mb bios in P7811-FX? Maybe i can try saving the bios when i use older system bios? What do you think, is it worth to try?

 

From what I've researched, if your EEPROM isn't supported, it isn't supported period and there are no workarounds, at least with nvflash. :\

 

Mhh, thanks for the answer, but I don't dare to do it

 

Thanks for the detailed guides guys, I've no experience with modding BIOS etc, and I got through it! Whew. I got my my voltage down to .85 for most and .99 for extra... I could probably go lower but I figured these were safe bets. My GPU temp still hits 80 or so while gaming but it takes much longer to get there. Thanks!

 

So this mod is not for P7811 FX - period The headline should be changed then...

 

ok so
I choose voltage table editor and the window appears
I see Voltage table entries
________ LABEL VID
ENTRY 1 ___ 1,12 01
ENTRY 2 ___ 0,9 00

Which is my gpu for sure? 01 i suppose?

 

Change the 0.9 to 0.8, and the 1.12 to something like 1.0v or 9.0v or 9.5v
Then under the voltages tab just fill in the appropriate voltages. (1.0v/.8v/.8v/.8v)

You've got a 7801, thats part of the 9800gts new series. You can do this mod no problem with no risks of what the 7811x guys are having.

 

Do you think it's better/safer to do this than to do your guide?

 

Both ways are equally safe, just you can put in the voltages YOU want with my tutorial.

 

Would this undervolt solve the "problem" of pulsing fan on idle?

Also, can I ask if there's any BAD thing that could happen if you undervolt either GPU and CPU? I mean, if the voltage are 1.12V, the GPU is meant to work on that profile, wouldn't it be bad to low those values? The system won't get hurt in any way and for a long time?

I'm gonna take a 7805u, but won't overclock in no way, just stock clocks. Just saw this board and got amazed. Will it work for me? hehe

Thanks!

 

I've gone down to 0.8v on all values and I could still use stock clocks and no problems. There is nothing bad about using lower values, just there may be some stability issues if you go too low, 0.95v is where Im at and it works perfecly. The only way to hurt your computer is if you overvolt too much.

And it does reduce the amount of pulsating by increasing the time it takes the gpu to get to 49C, mine, with ICD7 rarely goes beyong 45C.

 

For all the 7811fx users: its possible with a modded bios. ONE_J sent me a modded bios with the volt at 0,9 and it works almost perfect.

Its very stable, temps with notebook cooler, maxed out at 62-63c in furmark and vantage, also playing hon always max 63, without cooler about 65-67. however the only problem is when playing HoN and once in furmark; screen goes black 3 secs and then returns to game as nothing happened.

The direct prolblem is: Display Driver nvlddmkm stopped responding and has recovered. may be software related, however never had this prob before. thats the conclusion. ive asked ONE_J for a bios at 0.95 perhaps the lack of voltage is the issue, as for now thats how it is for me.

 

Hey One_J, I would like the bios.wph modded image only for 7811fx users, my email is [email protected]. I would like the voltage to be around 0.98-1.0v and the 9.17 bios.

 

well I'd like to see the .95 volt one, as my .9 volt does the same black screen for 3-5 seconds... I need to play with modding the bios myself, but i dont know where to get the bios editor...

 

Not so weird, when you think about that if it is OVERvolted... all that extra energy is going into one thing: HEAT! Which doesn't allow the GPU to work correctly, which can overheat the memory near the GPU, etc. etc. etc.

I'm too 'chicken' to try this on my computer myself, but I can understand why it would work.