8800GT bios for better overclocking! *test*

[Renegade5399]

Have you tried the BIOS in the first post? It relaxes the RAM timings and should help with the OC.

[Truckchase!]

Have you tried the BIOS in the first post? It relaxes the RAM timings and should help with the OC.

Does that really make it faster tho? On my ATI testing I didn't see much perf difference on relaxed timings + faster clock vs. tighter timings + slower clock. (both x1900xtx and x2900xt)

[Diverge]

I just noticed something i thought was kinda odd. Some peoples 'Exact Mode - Extra Voltage' is blank, mine is blank as well. but if you select hex view, you'll see the actual value.

Example, my EVGA 8800GT SC (650MHz), has a hex value of 0x82. which is 130 in decimal... in other words it's set to 1.3V. actual voltage is probably not that... but it is still kinda odd that it's set to that. so if it is set to an un-supported voltage, like 1.3, does it default down to 1.1V or default to something else? i guess checking with a volt meter would tell us.

In the pic below, is my cards default settings, read from the bios (bottom).. and EVGA SSC (top), read from a dump... that i was playing with to compare differences. it's default was 1.05V or 0x69, i was just playing around with it to see how the adjustments change the hex value.

kinda odd, huh?

[r4st4m4n]

I just noticed something i thought was kinda odd. Some peoples 'Exact Mode - Extra Voltage' is blank, mine is blank as well. but if you select hex view, you'll see the actual value.

Example, my EVGA 8800GT SC (650MHz), has a hex value of 0x82. which is 130 in decimal... in other words it's set to 1.3V. actual voltage is probably not that... but it is still kinda odd that it's set to that. so if it is set to an un-supported voltage, like 1.3, does it default down to 1.1V or default to something else? i guess checking with a volt meter would tell us.

In the pic below, is my cards default settings, read from the bios (bottom).. and EVGA SSC (top), read from a dump... that i was playing with to compare differences. it's default was 1.05V or 0x69, i was just playing around with it to see how the adjustments change the hex value.

kinda odd, huh?

According to Mavke (I think is the developer of Nibitor), the only things that the card recognize is the VID number between 1 to 4. 4 = 1.1V, 3 = 1.05V, ...
When you see in nibitor 1.1V, this only a label that nibitor make correspond to a VID but this label is only internal to nibitor and it's not taken from the bios.

So it is not possible to go higher than 1.1V since the card doesn't recognize other VID. This has been confirmed by Jason who tried to set the VID to 5, but as result the card reverted to a lower value, probably 1.05V.
Some people also tried to change the label in nibitor but as explained later by mavke, it didn't do nothing. It was also confirmed by the multimeter.

So I'm not sure what hex value you are reading but it is not the Vcore value. All the explanation above can be found in the previous posts. Check for Mavke's one.

And as you can see in the image below, the part of the bios you are reading doesn't seem to be a part of the voltage table:

[Diverge]

According to Mavke (I think is the developer of Nibitor), the only things that the card recognize is the VID number between 1 to 4. 4 = 1.1V, 3 = 1.05V, ...
When you see in nibitor 1.1V, this only a label that nibitor make correspond to a VID but this label is only internal to nibitor and it's not taken from the bios.

So it is not possible to go higher than 1.1V since the card doesn't recognize other VID. This has been confirmed by Jason who tried to set the VID to 5, but as result the card reverted to a lower value, probably 1.05V.
Some people also tried to change the label in nibitor but as explained later by mavke, it didn't do nothing. It was also confirmed by the multimeter.

So I'm not sure what hex value you are reading but it is not the Vcore value. All the explanation above can be found in the previous posts. Check for Makve's one.

And as you can see in the image below, the part of the bios you are reading doesn't seem to be a part of the voltage table:

I'm not saying that the card does anything with the default settings of my bios.. but it still says what it says in hex, which is 0x82 which coverts to 130 in decimal. change it to:

0.95V, and it reads 0x5F @ 0xBFD1 - (095 decimal)
1.00V, and it reads 0x64 @ 0xBFD1 - (100 decimal)
1.05V, and it reads 0x69 @ 0xBFD1 - (105 decimal)
1.10V, and it reads 0x6e @ 0xBFD1 - (110 decimal)

those are the only options you can pick.

My card has this field blank, from EVGA

it reads 0x82 @ 0xBFD1, which converts to 130 in decimal

that's what i find odd. that it is set to 1.3V by evga.

[mrkarate]

if I use the first post bios, may can i past 960 ram frecuency??, but, use another vendor bios, can cause a useless vga?? is dangerous?? , and if not, I have to use that bios with the default bios vendor? or I change with mi vga vendor? (xfx instead of Sparkle)


thanks!

[nuttah]

I'm not saying that the card does anything with the default settings of my bios.. but it still says what it says in hex, which is 0x82 which coverts to 130 in decimal. change it to:

0.95V, and it reads 0x5F @ 0xBFD1 - (095 decimal)
1.00V, and it reads 0x64 @ 0xBFD1 - (100 decimal)
1.05V, and it reads 0x69 @ 0xBFD1 - (105 decimal)
1.10V, and it reads 0x6e @ 0xBFD1 - (110 decimal)

those are the only options you can pick.

My card has this field blank, from EVGA

it reads 0x82 @ 0xBFD1, which converts to 130 in decimal

that's what i find odd. that it is set to 1.3V by evga.

I have an elite group 8800gt and my bios also is blank at that spot. Have u tried a multimeter?
Have you tried making it 1.1v and flashing? Any changes in OC?

[r4st4m4n]

I'm not saying that the card does anything with the default settings of my bios.. but it still says what it says in hex, which is 0x82 which coverts to 130 in decimal. change it to:

0.95V, and it reads 0x5F @ 0xBFD1 - (095 decimal)
1.00V, and it reads 0x64 @ 0xBFD1 - (100 decimal)
1.05V, and it reads 0x69 @ 0xBFD1 - (105 decimal)
1.10V, and it reads 0x6e @ 0xBFD1 - (110 decimal)

those are the only options you can pick.

My card has this field blank, from EVGA

it reads 0x82 @ 0xBFD1, which converts to 130 in decimal

that's what i find odd. that it is set to 1.3V by evga.

Oh, ok. sorry I misunderstood your post.

It would be interesting to measure how much volts you get with the odd bios.