8800GT bios for better overclocking! *test*

[Jip]

yup thank's a lot ...

but impossible is not french ^^

But it's sure that's seem impossible to pass 1,1v by bios mod... sic

[F@32]

antari

The largest gain on 8800GT you get from shader OC, then core and then memory. Lowering shader so that you can get higher core clocks will not get you higher overall performance. (see below)


Link to VR-Zone 8800GT OC

[F@32]

hello all,
me i've flash my XFX GT with the bios post in first. I change the manufacturer and the subsystem ID.
For précision i'm at (max) : 740/2106/1836 (orig 640/1900/1600)... and i've made 14025 on 3DMark06 with my E6850...
With the bios mod at 1.1 i can't pass this limit !

when i more easy with nibitor i've tryied to put the voltage at 1,15v but impossible, i've tryied tis to :

Voltage 1 : VID0 1v
Voltage 2 : VID1 1,05v
Voltage 3 : VID2 1,1v (= put VID3 for have 1,15v)
Voltage 4 : VID3 1,15v

The same system of bios orig but i replace the VID3 1,1v by 1,15v
All the VID are the same of original 0/1/2/3 but the modif of VID2/3 by hex

2nd test
Voltage 1 : VID0 0,95v
Voltage 2 : VID1 1v
Voltage 3 : VID4 1,15v
Voltage 4 : VID4 1,15v

I put a new VID the 4 and i put 1,15v...

The flash it's ok, but the oc it's the same or bugg of card

I sur that possible to put the voltage more of 1.1v

It doesn't matter what label you put next to VID. nVidia GPU uses VIDs levels and there are only four usable: VID00 - VID03. "0.95"-"1.1" is label only for people to understand which VID is which. GPU doesn't care which label you assign to VID. Thus your OC result stays the same.

Regards

[antari]

antari

The largest gain on 8800GT you get from shader OC, then core and then memory. Lowering shader so that you can get higher core clocks will not get you higher overall performance. (see below)

http://resources.vr-zone.com/floppyimage/8800gt/oc.jpg
Link to VR-Zone 8800GT OC

Thank you. I was just testing maximum stable core. I have not tested maximum shaderclock yet, however I think 1836 may be the maximum without a hardmod.

[zbomb5610]

I have a BFG 8800gt OC, and i can get 732/965/1798 stable on 100% fan speed with the bios changed to vid03 1.1v, i am using the bfg bios not the one on the first post.

I didn't feel like going over 965 on the memory side, but i know it can't go over 1010 since i did try that once.

I was just wondering what aftermarket air coolers people are putting on this card?

[F@32]

I have a BFG 8800gt OC, and i can get 732/965/1798 stable on 100% fan speed with the bios changed to vid03 1.1v, i am using the bfg bios not the one on the first post.

I didn't feel like going over 965 on the memory side, but i know it can't go over 1010 since i did try that once.

I was just wondering what aftermarket air coolers people are putting on this card?

Mine is under water, but waterblock is last in the loop after CPU and NB. Thus my 755/1825/2000 clocks and 1.1v get to 50C.

[rastaseb]

has anyone done the flash with a leadtek ?

[giorgos th.]

all the cards are reference design..
If it works into one brand,it`ll work in everyone i guess..

[Jip]

someone have test cooling with HR03-GT ?? For me it's available the newt week...
But i hesite to buy an HR03GT for cooling my XFX at 740/2106/1836 or buy an 8800GTS V2 ... **g choice ^^ lol

[Justintoxicated]

im getting 730 (linked) /2050 with stock voltages through riva tuner.

I have BFG Tech Card w/ stock cooler, the OC is very noticable.

Under load my temps are reaching 85C!

Thinking about putting this card on water. I don't know the limits yet as I have sceen no artifacting in bioshocka nd crysis. But I'm not sure if I am going to keep the card.

I have not flashed a vid card bios since the 9800 pro days but I might give it a shot.

[GAR]

I just installed the Zalman vf900, idles at 38, load is at 53.....nice little cooler.

[deathman20]

someone have test cooling with HR03-GT ?? For me it's available the newt week...
But i hesite to buy an HR03GT for cooling my XFX at 740/2106/1836 or buy an 8800GTS V2 ... **g choice ^^ lol

Mines coming tomorrow.

[The Asgard]

Any idea if you can use NiBiTor with the 512 GTS?

I have one coming on the 10th hopefully and I'm keen to do the Bios Mod.

[Jip]

hey hey me it comes next week i think...

If i not cracked for GTS ^^ lol

[Astennu]

MY PNY 8800 GT normal version reads 1.15v @ 3D Load. I'm running it on 700-1782-1900

Edit running 725-1782-2000 now so far so good.

[central]

Any idea if you can use NiBiTor with the 512 GTS?

I have one coming on the 10th hopefully and I'm keen to do the Bios Mod.

NiBitor 3.6 will work with the GTS
The GTS has already 1,15V in BIOS what is the max value.

[Diverge]

i just flashed my GT to a GTS... works, so far.. not sure if there is any benefit. i doubt there will be though, just would be cool if it did.

my only problem so far is the current drivers don't recognize my card... so it's just a standard vga device. anyone got GTS drivers... so i can test it? lol

[Astennu]

I found this picture:



And i saw Asus is not cooling all the vrm's that the stock is cooling trough thermal pads. So if i look at this you only have to cool the two blocks of 3 vrm's when you install a 3d party cooler like the TT Duo orb or the VF900.

I might try this this week. Maybe i should put a temp sensor on the other vrm's or something. Dont wanna kill my card..

[r4st4m4n]

i just flashed my GT to a GTS... works, so far.. not sure if there is any benefit. i doubt there will be though, just would be cool if it did.

my only problem so far is the current drivers don't recognize my card... so it's just a standard vga device. anyone got GTS drivers... so i can test it? lol

Forceware 169.06 WHQL : http://www.station-drivers.com/page/...0forceware.htm

Where did you find the bios ? Can you post it here ?

[counsol]

i just flashed my GT to a GTS... works, so far.. not sure if there is any benefit. i doubt there will be though, just would be cool if it did.

my only problem so far is the current drivers don't recognize my card... so it's just a standard vga device. anyone got GTS drivers... so i can test it? lol

How many stream processors is now listed using gpu-z after u flashed from GT to GTS?

[Booj]

i just flashed my GT to a GTS... works, so far.. not sure if there is any benefit. i doubt there will be though, just would be cool if it did.

my only problem so far is the current drivers don't recognize my card... so it's just a standard vga device. anyone got GTS drivers... so i can test it? lol

Seriously? Any improvements in benchmark scores? Does the card match the GTS clocks? It'd be awesome if the extra SP's can be unlocked.. But thats probably too good to be true

[counsol]

I also serioulsy do not think that a bios flash will enable the SP, based on nvidia's past experiences. Also, note that the GTS consumes HUGE amounts of energy more than the GT for the extra SPs to run.

No way in hell that can be accomplished on the GTs unless hardware volt mods are done.

The fun might be that if the SPs are disabled only via firmware, if someone could enable only a some of the 128sps (more than GT, but less than GTS) then it might work.

[Jip]

i just flashed my GT to a GTS... works, so far.. not sure if there is any benefit. i doubt there will be though, just would be cool if it did.

my only problem so far is the current drivers don't recognize my card... so it's just a standard vga device. anyone got GTS drivers... so i can test it? lol

Post your bios plz ^^

[F@32]

8800GT SPs are fused, i.e. hardware disabled. BIOS or nVstrap won't work. (would be nice though eh?)

Idle max VID03 is 1.1. 8800GT overvolts under load by 0.05v.

[central]

8800GTS BIOS File