How to Modify Your HD2900 BIOS Clock Frequencies by Hex File

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11-11-2007, 10:27 PM
super dank

How to Modify Your HD2900 BIOS Clock Frequencies by Hex File

I had a sudden idea that perhaps others had in comparing HD2900 bios files in HEX to find frequency settings. I had no Idea I would find it as easily as I did. I could not however figure out the format for the voltage settings. Can't really figure it out, although I did manage a few Bios with raised voltages.

How to set your HD2900 freq to your own BIOS file for flashing:

Download a free HEX editing tool, search for the string D9 00 04 01. It is the section of the Bios that contains the cpu and memory clock frequencies.

http://i25.photobucket.com/albums/c8...e/2900bios.jpg

To do this you should understand that integers can be two-byte, four-byte, eight etc. I wasn't finding numbers that I could recognize in the files raw hex data, as the hex software is limited to 2 , 4 , eight, floating point, and thats about it. I compared different versions of the Bios and found a table for the clocks lined up nice and easy. The integers are in reverse byte order, and are three byte; meaning the data in hex goes from least important to most, so C60C or 50700 (for 2d core ) mhz will be represented as 0C C6 in the bios file (if you count the next byte 00 its reversed ordered as 00C60C.) So in the same sense 3C 22 01 it typed into a hex converter in reverse as 01223C in hex and is 74300 in decimal (for 3d core 743mhz). C8 C8 00 is 00c8c8 is 51400 for the 514mzh 2d memory clock. 70 43 01 is 014370 is 82800 for the 828mhz 3d memory clock.

http://i25.photobucket.com/albums/c8.../converted.jpg

So if you want to set it to 800mhz, 80000 in decimal is 13880 so in reversed bit order it is 80 38 01 in the Bios file and you can set it this way. 90 5F 01 in a hex dec converter as 015F90 in hex is 90000 in decimal and will set the memory to 900mhz

http://i25.photobucket.com/albums/c8...etheclocks.jpg

GPU-Z Validation Link

If you want to flash your card to bypass the current way of over-clocking crossfire, save the Bios to a file and use atiflash v3.43 in dos to flash the card.

It really works, and for some reason if there is a problem, like memory timings or something, as long as you only change the 3d mode clocks, you should still be able to flash it back without any trouble.

If you can find a Bios with raised voltages, you can edit that one the same way and avoid the current hassle of overclocking these cards.

By posting this I assume you understand the risks of flashing any kind of memory chip. If you don't understand what you've just read I don't recommend you try it.
11-11-2007, 11:10 PM
STEvil

are fan speeds also encoded to the bios? Actually interested about this for an x1950xtx, though..
11-11-2007, 11:12 PM
elmor

I'm sorry but this doesn't work because of the digital signature. Been there done that ;) Unless they have disabled that check in the driver for some reason?
11-11-2007, 11:23 PM
super dank

Quote:

Originally Posted by STEvil

are fan speeds also encoded to the bios? Actually interested about this for an x1950xtx, though..

I would need two bios with different values for the fan speeds to ba able to find the values, otherwise it's like finding a needle in a haystack

Quote:

Originally Posted by elmor

I'm sorry but this doesn't work because of the digital signature. Been there done that ;) Unless they have disabled that check in the driver for some reason?

That is not true. It does work, and the clocks stay during 3dmode. I can vouch for this.

You flash with atiflash 3.43 and use the -f flag for forced flashing.
11-12-2007, 02:04 AM
elmor

Which driver do you use?
11-12-2007, 04:25 AM
super dank

2 Attachment(s)

I don't think it matters. The drivers don't and can't affect the card's BIOS, and actually looks to the card's bios as a reference for the 2d / 3d etc clocks. This is why a pro flashed to xt is recognized as an xt. This is also why the altered bioses from AMD have worked just fine, all having the same "signature".

The "digital signature" is simply a number at the front of the bios, in the comment section, that can help to find the origin of a file. It doesn't actually contain any kind of information useful to the hardware.

I appreciate the bumps :)

I have included three altered bioses (that work) for anyone who wants them. They are not ones restricted by AMD. For a 512mb hd2900 only. 800/900 825/900 and 850/900.
11-12-2007, 04:30 AM
Martin.v.r

http://www.mvktech.net/component/opt.../limitstart,0/
11-12-2007, 04:45 AM
super dank

Quote:

Originally Posted by Martin.v.r

http://www.mvktech.net/component/opt.../limitstart,0/

Looks like someone had the same idea with the 2600 :)

Looks like the section starts off with a different sting though, for 2900 its D9 00 04 01

Maybe the voltage can be figured out using this thread.
11-12-2007, 05:01 AM
super dank

The voltage settings don't seem to be quite the same. :(

It appears to be for the 2d mode, E8 03 = 03e8 = 1000, but the 3d modes show 01 FF, and the bios I have with raised voltage show the same. The solution may be there somewhere though.
11-12-2007, 06:09 AM
Martin.v.r

can this here help ?

Rivatuner info SAPPHIRE 2900PRO 512MB bios
$ffffffffff ----------------------------------------------------------------
$ffffffffff Display adapter information
$ffffffffff ----------------------------------------------------------------
$0000000000 Description : ATI Radeon HD 2900 PRO
$0000000001 Vendor ID : 1002 (ATI)
$0000000002 Device ID : 9400
$0000000003 Location : bus 1, device 0, function 0
$0000000004 Bus type : PCIE
$000000000f PCIE link width : 16x supported, 16x selected
$0000000009 Base address 0 : d0000000 (memory range)
$000000000a Base address 1 : none
$000000000b Base address 2 : fe8e0000 (memory range)
$000000000c Base address 3 : none
$000000000d Base address 4 : 0000c000 (I/O range)
$000000000e Base address 5 : none
$ffffffffff ----------------------------------------------------------------
$ffffffffff ATI specific display adapter information
$ffffffffff ----------------------------------------------------------------
$0900000000 Graphics core : R600 (320sp)
$0900000002 Memory bus : 512-bit
$0900000001 Memory type : DDR3 SGRAM
$0900000003 Memory amount : 512MB
$0900000004 Core clock : 506.250MHz
$0900000005 Memory clock : 513.000MHz (1026.000MHz effective)
$0900000006 Reference clock : 27.000MHz
$ffffffffff ----------------------------------------------------------------
$ffffffffff ATI VGA BIOS information
$ffffffffff ----------------------------------------------------------------
$0a00000000 Title : 113-B00605-100 R600 GDDR3_8Mx32 512bit 512MB 507e/514m
$0a00000001 Date/time : 08/09/07 19:40
$0a00000002 Core clock : 507.000MHz
$0a00000003 Memory clock : 514.000MHz
$0a00000004 Reference clock : 27.000MHz
$0a00020100 GPU VDDC controller : I2C device 70h, register 18h
$0a00020101 GPU VDDC level 0 : 0.700V, VID 94h
$0a00020102 GPU VDDC level 1 : 0.725V, VID 96h
$0a00020103 GPU VDDC level 2 : 0.750V, VID 98h
$0a00020104 GPU VDDC level 3 : 0.775V, VID 9Ah
$0a00020105 GPU VDDC level 4 : 0.800V, VID 9Ch
$0a00020106 GPU VDDC level 5 : 0.825V, VID 9Eh
$0a00020107 GPU VDDC level 6 : 0.850V, VID A0h
$0a00020108 GPU VDDC level 7 : 0.875V, VID A2h
$0a00020109 GPU VDDC level 8 : 0.900V, VID A4h
$0a0002010a GPU VDDC level 9 : 0.925V, VID A6h
$0a0002010b GPU VDDC level 10 : 0.950V, VID A8h
$0a0002010c GPU VDDC level 11 : 0.975V, VID AAh
$0a0002010d GPU VDDC level 12 : 1.000V, VID ACh
$0a0002010e GPU VDDC level 13 : 1.025V, VID AEh
$0a0002010f GPU VDDC level 14 : 1.050V, VID B0h
$0a00020110 GPU VDDC level 15 : 1.075V, VID B2h
$0a00020111 GPU VDDC level 16 : 1.100V, VID B4h
$0a00020112 GPU VDDC level 17 : 1.125V, VID B6h
$0a00020113 GPU VDDC level 18 : 1.150V, VID B8h
$0a00020114 GPU VDDC level 19 : 1.175V, VID BAh
$0a00020115 GPU VDDC level 20 : 1.200V, VID BCh
$0a00020116 GPU VDDC level 21 : 1.225V, VID BEh
$0a00020117 GPU VDDC level 22 : 1.250V, VID C0h
$0a00020118 GPU VDDC level 23 : 1.275V, VID C2h
$0a00020119 GPU VDDC level 24 : 1.300V, VID C4h
$0a0002011a GPU VDDC level 25 : 1.325V, VID C6h
$0a0002011b GPU VDDC level 26 : 1.350V, VID C8h
$0a00020200 RAM VDDC controller : I2C device 71h, register 18h
$0a00020201 RAM VDDC level 0 : 1.800V, VID BAh
$0a00020202 RAM VDDC level 1 : 1.850V, VID BCh
$0a00020203 RAM VDDC level 2 : 1.900V, VID BFh
$0a00020204 RAM VDDC level 3 : 1.950V, VID C2h
$0a00020205 RAM VDDC level 4 : 2.000V, VID C4h
$0a00020206 RAM VDDC level 5 : 2.050V, VID C7h
$0a00020207 RAM VDDC level 6 : 2.100V, VID CAh
$0a00020208 RAM VDDC level 7 : 2.150V, VID CCh
$0a00020209 RAM VDDC level 8 : 2.200V, VID CFh
$0a00020300 RAM VDDQ controller : I2C device 4Ch, register 12h
$0a00020301 RAM VDDQ level 0 : 1.800V, VID 07h
$0a00020302 RAM VDDQ level 1 : 1.850V, VID 14h
$0a00020303 RAM VDDQ level 2 : 1.900V, VID 29h
$0a00020304 RAM VDDQ level 3 : 1.950V, VID 3Dh
$0a00020305 RAM VDDQ level 4 : 2.000V, VID 4Bh
$0a00020306 RAM VDDQ level 5 : 2.050V, VID 61h
$0a00020307 RAM VDDQ level 6 : 2.100V, VID 74h
$0a00020308 RAM VDDQ level 7 : 2.150V, VID 82h
$0a00020309 RAM VDDQ level 8 : 2.200V, VID 97h
$0a00030000 PowerPlay state 0 : 507MHz/514MHz/1.00V/boot
$0a00030001 PowerPlay state 1 : 507MHz/514MHz/1.00V
$0a00030002 PowerPlay state 2 : 601MHz/800MHz/fused VID 1/3D
$0a00030003 PowerPlay state 3 : 601MHz/800MHz/fused VID 1/3D/Overdrive
$0a00030004 PowerPlay state 4 : 588MHz/800MHz/fused VID 2/thermal
$0a00030005 PowerPlay state 5 : 588MHz/800MHz/fused VID 1/UVD
$0a00000008 Memory type : DDR3
$ffffffffff ----------------------------------------------------------------
$ffffffffff ATI graphics processor registers
$ffffffffff ----------------------------------------------------------------
$0b00000134 RCU_ASIC_SERIAL_NUM0 : 0054453e
$0b00000138 RCU_ASIC_SERIAL_NUM1 : 0001d726
$0b00000600 CG_SPLL_FUNC_CNTL : 210012ac
$0b00000610 MPLL_FUNC_CNTL : 25001c68
$0b00000618 GENERAL_PWRMGT : 0000060b
$0b00000648 SCLK_FREQ_SETTING_STEP_0_PART1 : 80039500
$0b0000064c SCLK_FREQ_SETTING_STEP_0_PART2 : 80000200
$0b00000650 SCLK_FREQ_SETTING_STEP_1_PART1 : 00014600
$0b00000654 SCLK_FREQ_SETTING_STEP_1_PART2 : 00000000
$0b00000658 SCLK_FREQ_SETTING_STEP_2_PART1 : 00014600
$0b0000065c SCLK_FREQ_SETTING_STEP_2_PART2 : 00000000
$0b00000660 SCLK_FREQ_SETTING_STEP_3_PART1 : 00014600
$0b00000664 SCLK_FREQ_SETTING_STEP_3_PART2 : 00000000
$0b00000668 SCLK_FREQ_SETTING_STEP_4_PART1 : 00014600
$0b0000066c SCLK_FREQ_SETTING_STEP_4_PART2 : 00000000
$0b00000670 SCLK_FREQ_SETTING_STEP_5_PART1 : 00014600
$0b00000674 SCLK_FREQ_SETTING_STEP_5_PART2 : 00000000
$0b00000678 SCLK_FREQ_SETTING_STEP_6_PART1 : 00014600
$0b0000067c SCLK_FREQ_SETTING_STEP_6_PART2 : 00000000
$0b00000680 SCLK_FREQ_SETTING_STEP_7_PART1 : 00014600
$0b00000684 SCLK_FREQ_SETTING_STEP_7_PART2 : 00000000
$0b00000688 SCLK_FREQ_SETTING_STEP_8_PART1 : 00014600
$0b0000068c SCLK_FREQ_SETTING_STEP_8_PART2 : 00000000
$0b00000690 SCLK_FREQ_SETTING_STEP_9_PART1 : 00014600
$0b00000694 SCLK_FREQ_SETTING_STEP_9_PART2 : 00000000
$0b00000698 SCLK_FREQ_SETTING_STEP_10_PART1 : 00014600
$0b0000069c SCLK_FREQ_SETTING_STEP_10_PART2 : 00000000
$0b000006a0 SCLK_FREQ_SETTING_STEP_11_PART1 : 00014600
$0b000006a4 SCLK_FREQ_SETTING_STEP_11_PART2 : 00000000
$0b000006a8 SCLK_FREQ_SETTING_STEP_12_PART1 : 00014600
$0b000006ac SCLK_FREQ_SETTING_STEP_12_PART2 : 00000000
$0b000006b0 SCLK_FREQ_SETTING_STEP_13_PART1 : 00014600
$0b000006b4 SCLK_FREQ_SETTING_STEP_13_PART2 : 00000000
$0b000006b8 SCLK_FREQ_SETTING_STEP_14_PART1 : 00014600
$0b000006bc SCLK_FREQ_SETTING_STEP_14_PART2 : 00000000
$0b000006c0 SCLK_FREQ_SETTING_STEP_15_PART1 : 00014600
$0b000006c4 SCLK_FREQ_SETTING_STEP_15_PART2 : 00000000
$0b000006c8 SCLK_FREQ_SETTING_STEP_16_PART1 : 00014600
$0b000006cc SCLK_FREQ_SETTING_STEP_16_PART2 : 00000000
$0b000006d0 SCLK_FREQ_SETTING_STEP_17_PART1 : 00014600
$0b000006d4 SCLK_FREQ_SETTING_STEP_17_PART2 : 00000000
$0b000006d8 SCLK_FREQ_SETTING_STEP_18_PART1 : 00014600
$0b000006dc SCLK_FREQ_SETTING_STEP_18_PART2 : 00000000
$0b000006e0 SCLK_FREQ_SETTING_STEP_19_PART1 : 00014600
$0b000006e4 SCLK_FREQ_SETTING_STEP_19_PART2 : 00000000
$0b000006e8 MPLL_FREQ_LEVEL_0 : 000ae300
$0b000006ec MPLL_FREQ_LEVEL_1 : 00000000
$0b000006f0 MPLL_FREQ_LEVEL_2 : 00000000
$0b000006f4 MPLL_FREQ_LEVEL_3 : 00000000
$0b000006fc CTXSW_PROFILE_INDEX : 00000000
$0b00000700 HIGH_PROFILE_INDEX : 00000800
$0b00000704 MED_PROFILE_INDEX : 00000c00
$0b00000708 LOW_PROFILE_INDEX : 00000800
$0b0000070c TARGET_AND_CURRENT_PROFILE_INDEX : 00000015
$0b0000078c CG_BUSY_SAMPLING_PARAMETERS : 000241eb
$0b000007d4 CG_SPLL_FUNC_CNTL_2 : 00000000
$0b000007d8 MPLL_FUNC_CNTL_2 : 00000000
$0b000007f4 CG_THERMAL_STATUS : 00000000
$0b000007f8 CG_THERMAL_INT : 00000000
$0b00000804 CG_FDO_CTRL0 : 00000000
$0b00000808 CG_FDO_CTRL1 : 00000000
$0b0000080c CG_FDO_CTRL2 : 00000000
$0b00000810 CG_FDO_LUPT0 : 00000000
$0b00000814 CG_FDO_LUPT1 : 00000000
$0b00000818 CG_FDO_LUPF0 : 00000000
$0b0000081c CG_FDO_LUPF1 : 00000000
$0b00002004 CHMAP : 00003210
$0b00002408 RAMCFG : 000000a8
$0b00005428 CONFIG_MEMSIZE : 20000000
$0b00008950 REG_8950 : 00000000
$0b00008954 REG_8954 : 00000000
11-12-2007, 08:30 AM
super dank

It just might...

It seems the 01 FF and 02 FF is for fused vid 1 and 2. Gonna try to figure this out.

$0a00030000 PowerPlay state 0 : 507MHz/514MHz/1.00V/boot
$0a00030001 PowerPlay state 1 : 507MHz/514MHz/1.00V
$0a00030002 PowerPlay state 2 : 601MHz/800MHz/fused VID 1/3D
$0a00030003 PowerPlay state 3 : 601MHz/800MHz/fused VID 1/3D/Overdrive
$0a00030004 PowerPlay state 4 : 588MHz/800MHz/fused VID 2/thermal
$0a00030005 PowerPlay state 5 : 588MHz/800MHz/fused VID 1/UVD
11-13-2007, 08:02 AM
Janchu88

edit: here i wrote a lot of crap... :D
11-13-2007, 10:38 PM
Nick L

Interesting…I was testing your 825c925m and 850c950m bios and can not submit 3DMark06 with these bios. Can this be corrected?
11-14-2007, 12:30 PM
Janchu88

So far, a part of the voltages is discovered, too...

the two bytes after the three bytes for the ram clock represent the voltages...

in 2D there we have E8 03 at default... inverted means 3e8, which is 1000 in decimal or 1,0v... I changed the value in the second 2D line (Powerplay State 1 , mentioned above) to 52 03 in Bios (inverted: 352 or in decimal 850) and yep... here we go, i do have now 0,85v in 2D....

http://s1.directupload.net/images/07...p/vgwhap83.jpg

So far, each line is one mode... but in the 3D Modes in the bios it says FF 01 or FF 02... (1FF or 2FF) for Fused Vid 1 or Fused Vid 2... but how to change these?

Edit: Made a Pic of what i mean... ;)

http://s2.directupload.net/images/071114/xprdaihn.jpg

Edit²

You can simply overwrite the different Vids like FF 01 with Fixed Values!

Here my 2900Pro @ 0,85v 2D and 1,15v 3D Bios... Just invert the Bytes as with the clockrates, too!

http://s5.directupload.net/images/071114/fpa9pxk6.jpg
11-14-2007, 01:57 PM
003

super dank: YGPM!!
11-14-2007, 03:45 PM
Lightman

Great job! :clap:

I was waiting for this moment ....

Can you try to make BIOS with 0.9V 2D clocks and 1.25V 3D clocks??
Preferably 300/300 2D and 840/999 3D....

I will try it straight away!

Thanks!
11-15-2007, 12:36 AM
super dank

@ Janchu

See, the thing is tho that 01 FF represents a value way higher than would be typical for the voltage. Unless someone tries it, we wont know what will happen to the vgpu if you change that value. It would be nice if it works, but I'm worried about changing that value causing a problem.

The values remain 01 FF and 02 FF on pro bios and other bios with higher voltages. The proper way to change them is somewhere else.
11-15-2007, 03:36 AM
db87

1 Attachment(s)

The FOXCONN Quantum-Force 880c950m.sb bios was a bit to risky for me because my 2900PRO does lock-up with speeds above 850 with the stock 1.15v Voltage adjustments like Janchu88 was also a bit to tricky for me at the moment.
So a just modded the 880c950m.sb bios and flashed it in to my Sapphire 2900PRO, super dank you're awsome it works like a charm:woot:

Its 820 core and 950 ram, 1,1v 2D and 1,25V 3D.
Just tested it with Crysis as you can see:
screen

http://www.megaupload.com/?d=HQP6U9W7

Thanks super dank:clap:

EDIT: now i can do 900MHz core before it locks-up, running HDRIBL
11-15-2007, 09:53 AM
Janchu88

Quote:

Originally Posted by super dank

@ Janchu

See, the thing is tho that 01 FF represents a value way higher than would be typical for the voltage. Unless someone tries it, we wont know what will happen to the vgpu if you change that value. It would be nice if it works, but I'm worried about changing that value causing a problem.

The values remain 01 FF and 02 FF on pro bios and other bios with higher voltages. The proper way to change them is somewhere else.

well so far for me and few others it worked that way... i think that this 1FF oder 2FF represants a special case fur Fused VID 1 and Fused VID 2

Othwise it would be something round about 4v+ ...
11-16-2007, 11:35 AM
eXceeded

This is a very interesting discovery and I like it :). Now just need a tool for us noobs and then i can say goodbye to damn 2D clocks and ramp up the voltages :D
11-16-2007, 12:37 PM
ownage

Quote:

Originally Posted by db87

The FOXCONN Quantum-Force 880c950m.sb bios was a bit to risky for me because my 2900PRO does lock-up with speeds above 850 with the stock 1.15v Voltage adjustments like Janchu88 was also a bit to tricky for me at the moment.
So a just modded the 880c950m.sb bios and flashed it in to my Sapphire 2900PRO, super dank you're awsome it works like a charm:woot:

Its 820 core and 950 ram, 1,1v 2D and 1,25V 3D.
Just tested it with Crysis as you can see:

http://www.megaupload.com/?d=HQP6U9W7

Thanks super dank:clap:

EDIT: now i can do 900MHz core before it locks-up, running HDRIBL

Nice Detmer, i try it tomorrow when i have my 2900pro D-tek Fuzionized :D

@Janchu88. A year ago we both had x1900GTrev2, now we both have 2900pro. :P, w00t.
11-17-2007, 01:24 PM
Truckchase!

Quote:

Originally Posted by Janchu88

Edit²

You can simply overwrite the different Vids like FF 01 with Fixed Values!

Here my 2900Pro @ 0,85v 2D and 1,15v 3D Bios... Just invert the Bytes as with the clockrates, too!

Confirmed, works. Thanks for having the balls to try this out Janchu88! I'm now back to using my original XT bios that I've modded to 1.3v in 3d. Seems more stable than the Foxconn modded bios sofar, and slightly less GPUA usage. Still testing....
11-17-2007, 02:35 PM
cirthix

Quote:

Originally Posted by STEvil

are fan speeds also encoded to the bios? Actually interested about this for an x1950xtx, though..

I'm pretty sure that rabit can change the x1950xt fan speeds in bios.
11-18-2007, 06:01 AM
Praimm

Quote:

Originally Posted by super dank

I don't think it matters. The drivers don't and can't affect the card's BIOS, and actually looks to the card's bios as a reference for the 2d / 3d etc clocks. This is why a pro flashed to xt is recognized as an xt. This is also why the altered bioses from AMD have worked just fine, all having the same "signature".

The "digital signature" is simply a number at the front of the bios, in the comment section, that can help to find the origin of a file. It doesn't actually contain any kind of information useful to the hardware.

I appreciate the bumps :)

I have included three altered bioses (that work) for anyone who wants them. They are not ones restricted by AMD. For a 512mb hd2900 only. 800/900 825/900 and 850/900.

Umm...i tried 1 bios from ur package, result = black screen and dead card -> flash with pci-card.

Also without the -f atiflash says its invalid PC image?

I have 2900pro 512mbit @ XT

Edit: Also what is that .sb file? Sorry im not pro at these things.
11-19-2007, 02:43 AM
roger_h99.nor

Quote:

Originally Posted by Truckchase!

Confirmed, works. Thanks for having the balls to try this out Janchu88! I'm now back to using my original XT bios that I've modded to 1.3v in 3d. Seems more stable than the Foxconn modded bios sofar, and slightly less GPUA usage. Still testing....

Could You please share your bios (743/828/1.3)? (foxconn seems a bit unstable in Crysis)

Another thing - I may be a bit slow on this one, but how to replace the hex with fixed values? Meaning putting in the voltage whit this format: 13 50 ?

Thanks.

btw - another interesting thread http://forums.techpowerup.com/showth...916#post537916

Edit: HEX values of course..
11-19-2007, 07:53 PM
super dank

Quote:

Originally Posted by Janchu88

well so far for me and few others it worked that way...

Well ill be dashed :D :up:

I see others have already confirmed, but I just tried it and yes, it works :clap:

Thanks for being the one to test it. I certainly wasn't going to risk bricking my cards.

Thanks for all the positive remarks from everyone, it seems that this has been nailed right on the head, happy modding :up:
11-20-2007, 02:39 AM
roger_h99.nor

It works, confirmed as well.
Upped the voltage on Powerstate 2 & 3 to 1.300 V.

Think I also found the place for Vram and Vddq in the bios - but I dont see any application for this yet.

btw, does anyone know the difference of Powerstate 0 (boot) and Powerstate 1 (2D) ? Why there is two?
11-20-2007, 03:05 AM
ChkDsk

Dear gods :D This sounds great! I'm sure lot of people are waiting to see a simple RaBit clone or something. And so am I ;) This also works on a 1GB version btw?

:up:
11-20-2007, 11:38 AM
eXceeded

it hasn't helped my overclocks at all though :(. Infact the higher the voltage the more unstable it gets, I'm on watercooling and the gpu never gets hotter than 60oc... Realy annoys me, if this is another one of my things that I have that can't overclock I will be seriously pissed off...!
11-20-2007, 11:45 AM
[XC] Hicks121

Is the Vregs gettn too hot? That would spoil the oc.
11-20-2007, 11:48 AM
super dank

Quote:

Originally Posted by eXceededgoku

it hasn't helped my overclocks at all though :(. Infact the higher the voltage the more unstable it gets, I'm on watercooling and the gpu never gets hotter than 60oc... Realy annoys me, if this is another one of my things that I have that can't overclock I will be seriously pissed off...!

Ya, did you leave the fan and red metal peice on for the volt regs?

I'm not done overclocking yet, but so far 900 and 925mhz xfire is working great :)
11-20-2007, 01:02 PM
TouGe

Wow, this is a really cool find. I've been waiting forever for a new RaBit version to OC my cards but maybe now I won't need to wait any longer. I'll give this a shot over Tanksgiving:up:.
11-21-2007, 12:02 PM
eXceeded

Oops... lol :D. Sounds like a weekend job since I have to find the missing pieces :O
11-21-2007, 12:24 PM
The Mutt

Could someone mod my bios? I want 1.3Vgpu and thats it :) Here's a link http://www.techpowerup.com/vgabios/9...512.070416.bin

Thank you!
11-21-2007, 12:44 PM
roger_h99.nor

Here is my bios, fresh from the floppy :D Ordinary XT bios, only difference is 1.30V in 3D mode.

[2D: 507/514/1.00V]
[3D: 743/828/1.30V]

(It's a Sapphire 512MB card).

Unzip first. Confirmed working for me, but flash at own risk.
11-21-2007, 01:01 PM
GLENBOY

have you tried 1.35 volts roger i see on tech pwerup forum someone has succesfully been running it at that on there good work:up:
11-21-2007, 01:07 PM
roger_h99.nor

No, not yet, but will :) (1.30 not tested to the max yet, but looks like card is benchable around +900 somewhere. (3DMark06 crashes at 930)

Watercooled, mind you.
11-21-2007, 06:00 PM
Severance

1 Attachment(s)

Alright fellas just consider me a newb:) What the heck did i do wrong? core clocks are fine but as you can see mem clocks went for a crap:shrug: Im using roger h99 moded bios Help this newb out please:up:
11-22-2007, 12:05 AM
W1zzard

any good coder out there who would be willing to work on a bios editor project? i dont have the time myself to start another one but can certainly help out with bios format info etc.
11-22-2007, 12:13 AM
Athens[2004]

Quote:

Originally Posted by roger_h99.nor

Here is my bios, fresh from the floppy :D Ordinary XT bios, only difference is 1.30V in 3D mode.

[2D: 507/514/1.00V]
[3D: 743/828/1.30V]

(It's a Sapphire 512MB card).

Unzip first. Confirmed working for me, but flash at own risk.

Thnx :up: i will flash mine [sapphire 2900pro 512 watercooled. ] and i report some 3dmarks or the black screen of death . :ROTF:
11-22-2007, 12:39 AM
Martin.v.r

why not mod the PRO bios ? :banana::banana::banana::banana: the XT bios
11-22-2007, 01:05 AM
roger_h99.nor

Quote:

Originally Posted by Severance

Alright fellas just consider me a newb:) What the heck did i do wrong? core clocks are fine but as you can see mem clocks went for a crap:shrug: Im using roger h99 moded bios Help this newb out please:up:

You DO HAVE the 512MB version, right?
What does Rivatuner show?

CCC sometimes does strange things after a flash - try to reinstal.

Hope it helps.
11-22-2007, 01:48 AM
TouGe

Quote:

Originally Posted by W1zzard

any good coder out there who would be willing to work on a bios editor project? i dont have the time myself to start another one but can certainly help out with bios format info etc.

It would be nice if someone could code another BIOS editor. It seems that RaBit is a dying project. I don't have the skills to do this kind of work but wouldn't mind donating some funds through paypal to help out.
11-22-2007, 02:08 AM
roger_h99.nor

Before going 'banans' with a HEX editor I suggest you all have a look at this page: http://forums.techpowerup.com/showth...t=44968&page=2 (post 48)

Haven't tried it myself, but i trust Shamino's skills :)

Only reason to HEX edit should be if we want to alter the Vgpu in 2D.
11-22-2007, 02:14 AM
Severance

Quote:

Originally Posted by roger_h99.nor

You DO HAVE the 512MB version, right?
What does Rivatuner show?

CCC sometimes does strange things after a flash - try to reinstal.

Hope it helps.

Yes i have 512 vers. Riva shows same. CCC is showing correct i know this cus system crashes instantly on any 3d app. Why does superdank show 0000AE16 and for me its 0000AE10? Thanx for your help.
11-22-2007, 02:20 AM
roger_h99.nor

Strange..
I did not alter anything except 3D Vgpu in 'XTMOD.BIN'.

Bios gives me 828Mhz RAM in 3D mode.

Have a look at my previous post - this may help you out.
11-22-2007, 02:28 AM
TouGe

Thanks for the link:up: :up: :up:
11-22-2007, 03:02 AM
pcfreak

Thanks for the link Roger :up:
Bad thing is I'm still waiting for my mobo to return from rma so I cannot test :(

those who tried higher vcore please report vreg temps
11-22-2007, 03:33 AM
Athens[2004]

roger_h99.nor@ the folder contains only the xtmod.bin file , cant flashed with atiwinflash cause the prog requires the vbios image [rom?]

help! :D
11-22-2007, 03:41 AM
roger_h99.nor

I've done crazy things in my life, but NEVER dared to flash from Win..

Strongly recommend flashing from DOS (floppy or USB boot disk).

If you insist using winflash, I imaging it's just to rename to *.ROM.
11-22-2007, 03:42 AM
Athens[2004]

win ftw . ! ill be back , [i hope with my 2900 and not with the reserve 6600gt@ddr2]

didnt work. :( ill try @dos later.
11-22-2007, 07:24 AM
Rick Flair

http://rapidshare.com/files/71500253...IOS_Editor.zip

2900 series 512MB and 1GB BIOS editor.
11-22-2007, 08:34 AM
TouGe

Quote:

Originally Posted by roger_h99.nor

Before going 'banans' with a HEX editor I suggest you all have a look at this page: http://forums.techpowerup.com/showth...t=44968&page=2 (post 48)

Haven't tried it myself, but i trust Shamino's skills :)

Only reason to HEX edit should be if we want to alter the Vgpu in 2D.

Worked great for me.

860MHz/1175MHz @ 1.20V

Thanks again Roger for the info.
11-22-2007, 08:56 AM
roger_h99.nor

Thanks for sharing TouGe.

Had a quick look at how the 'QuantumForce' bios-editor does it;
What happens when you set a new Vgpu is that Powerstate 2 & 3 gets overwritten with the new HEX decimal corrensponding to the voltage of choice.

So it's just an automated HEX edting tool. Never the less, its very cool :clap:
11-22-2007, 09:25 AM
super dank

I didn't think editor tools would take long after spreading this info around a bit, looks like it only took a few days :) I wonder if it fixes the bios checksum... This is why atiflash doesn't display the bios info for modded bioses. Not to worry thought, the bad checksum won't have a negative affect on your card.

It doesn't let you change the thermal mode voltages, but I suppose you might not want to unless you're a maniac like myself ;)
11-22-2007, 09:58 AM
Guz

I've read in that techpowerup thread that some people cannot get it (quantumforce editor) to work in vista x64 without disabling driver signing. Is there a workaround, maybe the F8 option which chooses to disable driver signing at startup??

Edit: Forget i asked, just tried it on vista 64 and it works fine. One thing to note is that overclocking the 2900 is almost useless cause bios automatically loosens the mem timings if overclocked. If you don't believe me just do a quick 3dmark06 bench, after increasing mem speed and you'll see the score stays put, LOL. If somehow the editor could let us edit the mem timings i'm sure performance would increase.
11-23-2007, 12:29 AM
Martin.v.r

1 Attachment(s)

Sapphire 2900pro 512mb
http://www.hynix.com/datasheet/pdf/d...FP(Rev1.7).pdf
11-23-2007, 07:52 AM
ownage

OK, question for u guys.

If you flash you're card, do you get info displayed at:
-New Product name?
-New Bios version?

I dont get any info displayed with any modded bios. When i flash with an original PRO or XT bios i do get info displayed at new product name and new bios version. Every bios which shows this information seems to work.

What are you're experiences with this?

screen:
http://img.techpowerup.org/071123/flash_screen2.jpg
11-23-2007, 08:34 AM
003

Yup I get the same problem as you and I am also on an abit motherboard.
11-23-2007, 09:15 AM
roger_h99.nor

003 & Ownage:
Both of you boots a HDD and runs Atiflash from a HDD?
11-23-2007, 09:18 AM
ownage

Quote:

Originally Posted by roger_h99.nor

003 & Ownage:
Both of you boots a HDD and runs Atiflash from a HDD?

First tried a floppy disk, now booting from an USb stick, doesn't matter.
The flash process seems to work, but i dont get any signal to my monitor.
11-23-2007, 09:20 AM
003

Quote:

Originally Posted by roger_h99.nor

003 & Ownage:
Both of you boots a HDD and runs Atiflash from a HDD?

I always boot from a floppy and do everything from the floppy. But this is what kills me. Why would the stock bios work but nothing else?
11-23-2007, 09:44 AM
roger_h99.nor

This is strange!
@Ownage: Looking at your picture above - I'm pretty sure there should be information in the fields left blank in your image.

Could you please post the bios you used at that particular flash, or is it my 'XTMOD.BIN' posted here earlier?

This is a 'a long shot' but, if you NOT using a 8 pin power connector, this might be the reason it don't work for you guys - as the Foxconn prog writes values to the Powerstate 3 mode in bios. Powerstate 3 is also refferd to as 'Overdrive' mode. As you well know, Overdrive is disabled when only using 6 pin connectors.
11-23-2007, 10:07 AM
003

There should be more information. When I flash with the stock bios, not only is there more information in the lines left blank, but there are also more lines OF information!

It happens with ANY bios other than the stock one. That 6/8pin theory can't be true, as I have the 3 solder points bridged on the back of the card. I have confirmed that I can enable and use overdrive as well. I'm thinking it must be the abit motherboards, as we both are using an abit motherboard. Is there anybody who has successfully flashed a 2900 on an abit motherboard?
11-23-2007, 11:11 AM
roger_h99.nor

http://forums.techpowerup.com/showth...t=44968&page=3
Have a look at user 'cepoi'. Similar problem - Abit mobo.
11-23-2007, 11:34 AM
003

I think it's safe to say this is due to using an abit motherboard then. Now we just need to figure out if this is a bug with ATItool or with the abit motherboards, and then how to go about fixing this...
11-23-2007, 11:56 AM
TouGe

Has anyone OC'd there card and then played through Crysis?

The reason I ask is I was able to get everything stable at 840MHz/1165MHZ @ 1.2V using multiple loops of 3DMark06/05 and ~ 1 hour of CoD4 but as soon as I load Crysis I get horrible corruption--green/white flashes resembling laser beams.
When I play it at 780MHz/1180MHz this corruption is not there, is Crysis that demanding or is it that poorly coded?
I had spoke w/ a guy over at Extreme-Pc where I bought both my cards and he said the reason they chose a core clock of 780MHz was due to the amount of corruption they experienced while going through the Crysis demo at higher clocks.
Would heat be the issue? Would water cooling solve this?
11-23-2007, 12:46 PM
super dank

Quote:

Originally Posted by ownage

OK, question for u guys.

If you flash you're card, do you get info displayed at:
-New Product name?
-New Bios version?

I dont get any info displayed with any modded bios. When i flash with an original PRO or XT bios i do get info displayed at new product name and new bios version. Every bios which shows this information seems to work.

What are you're experiences with this?

Quote:

Originally Posted by 003

Yup I get the same problem as you and I am also on an abit motherboard.

Quote:

Originally Posted by ownage

First tried a floppy disk, now booting from an USb stick, doesn't matter.
The flash process seems to work, but i dont get any signal to my monitor.

I was saying in an earlier post, this is because of a bad checksum (most likely)

When you alter values of a file, the file's checksum result changes. It would then need to be corrected.

This won't however harm your card. A checksum is often used to detect file corruption. We have been altering these files intentionally.
11-23-2007, 12:52 PM
ownage

Quote:

Originally Posted by super dank

I was saying in an earlier post, this is because of a bad checksum (most likely)

When you alter values of a file, the file's checksum result changes. It would then need to be corrected.

This won't however harm your card. A checksum is often used to detect file corruption. We have been altering these files intentionally.

I can't believe any modded bios i tried, and my own modded biosses fail, while every original bios works flawlessly.
11-23-2007, 01:04 PM
eXceeded

DX10 games don't like overclocks for some reason, I had the same problem with Lost Planet in DX10. And I imagine it would be the same with GOW DX10 and others.
11-23-2007, 02:15 PM
keenan

Hi guys, I am very new to ati, was always nvidia to the grave

So I have the HIS 2900XT 512mb DDR3 and I want to flash it with a modded bios. I can overclock 100% stable to 870/2400, made a 6pin pci-e to 8pin mod, but I want to try 1.3V with some higher voltages.

So what would be the best way of flashing, do I need to backup my original bios first (how?), do I need to edit my own bios or can I flash with any XT bios..? Can I change Fan speeds..?

What do I use to flash the card..?
11-23-2007, 11:24 PM
TouGe

Quote:

Originally Posted by eXceededgoku

DX10 games don't like overclocks for some reason, I had the same problem with Lost Planet in DX10. And I imagine it would be the same with GOW DX10 and others.

Interesting to know. I was going a little crazy there for a while. I wonder if playing Crysis in DX9 @ 840/1165 would show similar corruption.

I'll have to give it a looksee tomorrow.
Thanks for the info eXceededgoku
11-24-2007, 01:30 AM
Martin.v.r

ATIFlash v3.49 http://www.mvktech.net/component/opt...cf40d6d1e5e23/

floppy

atiflash -s 0 backup.rom
atiflash -f -p 0 name.rom
:)

ATI driver 7.11 ned more volt
11-24-2007, 04:08 AM
eXceeded

Quote:

Originally Posted by TouGe

Interesting to know. I was going a little crazy there for a while. I wonder if playing Crysis in DX9 @ 840/1165 would show similar corruption.

I'll have to give it a looksee tomorrow.
Thanks for the info eXceededgoku

Np I have a feeling that Dx9 will work fine!
I await your results ;)
11-24-2007, 09:24 AM
003

Quote:

Originally Posted by Martin.v.r

ATIFlash v3.49 http://www.mvktech.net/component/opt...cf40d6d1e5e23/

floppy

atiflash -s 0 backup.rom
atiflash -f -p 0 name.rom
:)

ATI driver 7.11 ned more volt

Does this new version of atiflash work on abit motherboards??
11-24-2007, 11:11 AM
ownage

Quote:

Originally Posted by 003

Does this new version of atiflash work on abit motherboards??

Doesn't work!
11-24-2007, 11:48 AM
keenan

Crysis work flawlessly on DX9 mode with Modded very high setting when you overclock.

Is there any way to flash my card in windows...?

Does anyone have a HIS 2900XT 512mb DDR3 bios with modded Voltages...?
11-24-2007, 12:04 PM
Truckchase!

Quote:

Originally Posted by keenan

Crysis work flawlessly on DX9 mode with Modded very high setting when you overclock.

Is there any way to flash my card in windows...?

Does anyone have a HIS 2900XT 512mb DDR3 bios with modded Voltages...?

Oddly enough, Crysis is more stable for me at higher clocks than BF2142 and UT3. I've got to take my core down for UT3 and my mem down for BF2142.

Don't flash your card in windows. Just don't..... You'll regret it after the card dies. :D

I've got a modded bios for my HIS 2900xt, but I have the clocks up to 920/920 for the stock 3d OC. Probably not good to share....
11-24-2007, 12:31 PM
003

Quote:

Originally Posted by ownage

Doesn't work!

:mad:
11-24-2007, 12:51 PM
keenan

Quote:

Originally Posted by Truckchase!

I've got a modded bios for my HIS 2900xt, but I have the clocks up to 920/920 for the stock 3d OC. Probably not good to share....

Whats your 3d voltages at those clocks...?

By all meens, share please

One more thing, I dont have a floppy drive, how will I flash it...?
11-24-2007, 12:55 PM
ownage

Quote:

Originally Posted by keenan

One more thing, I dont have a floppy drive, how will I flash it...?

http://www.techpowerup.com/articles/...g/vidcard/34/5
Make a bootable USB stick :p:
11-24-2007, 02:38 PM
JamesBong420

i have flashed a his 2900 pro into an XT on an ABIT ip35-pro, usb flash, works great. im tempted to make a new bios with better 3d clocks.

edit:

just modded the xt bios that was on there. and it gets the same thing ownage gets. shall i modd a pro bios?

edit2: nvm both an edited pro and an edited xt doesnt work. trying quannum
11-24-2007, 03:51 PM
JamesBong420

quannum work fine. but when i use the editor to look at the quannum bios it says 1.15 as the volts. lol something isn't right on the editor.
11-24-2007, 04:48 PM
ownage

Quote:

Originally Posted by JamesBong420

quannum work fine. but when i use the editor to look at the quannum bios it says 1.15 as the volts. lol something isn't right on the editor.

That's right, i had the same thing.
But a Quantum Force bios works? DB87 modded a quantum bios, but even that one doesn't work for me. I'm sure this is just some f*ckd-up ABIT problem!
11-24-2007, 05:00 PM
G H Z

Quote:

Originally Posted by JamesBong420

quannum bios it says 1.15 as the volts.

1.16V is the stock 3D voltage (1.0V 2D) on these cards, there's nothing wrong with the editor.

Quote:

Originally Posted by ownage

Doesn't work!

I get the missing info on every flash but all the BIOS's work fine.
11-24-2007, 05:31 PM
ownage

Quote:

Originally Posted by G H Z

1.16V is the stock 3D voltage (1.0V 2D) on these cards, there's nothing wrong with the editor.

He means the lowest Quantum bios is modded to 1.25v. If you open any modded bios made by the Quantum editor you can see its raised to 1.2v or 1.3v or whatever. Only if you open a Quantum-force bios which delivers 1.3v its recognized as 1.15v in the editor.

Quote:

Originally Posted by G H Z

I get the missing info on every flash but all the BIOS's work fine.

Ok, thnx for the info. I wonder what goes wrong then :shrug:
11-24-2007, 05:51 PM
G H Z

Quote:

Originally Posted by ownage

He means the lowest Quantum bios is modded to 1.25v. If you open any modded bios made by the Quantum editor you can see its raised to 1.2v or 1.3v or whatever. Only if you open a Quantum-force bios which delivers 1.3v its recognized as 1.15v in the editor.

I don't know what these are. Why not make your own based on your stock Pro BIOS or a stock XT BIOS? I've flashed a Pro with modded clocks/voltages using the editor a bunch of times, they all work for me. Let me know if you want one.
11-24-2007, 06:00 PM
ownage

Quote:

Originally Posted by G H Z

I don't know what these are. Why not make your own based on your stock Pro BIOS or a stock XT BIOS? I've flashed a Pro with modded clocks/voltages using the editor a bunch of times, they all work for me. Let me know if you want one.

I allready did that :p: , but that's not the problem i think.
There are now 4 guys who have this problems, and they all use Abit boards. I think that has someting to do with it, because if i mod my original bios it still gives me problems.
11-24-2007, 06:54 PM
G H Z

Did you re-install your drivers after flashing?
11-24-2007, 07:26 PM
JamesBong420

i can use any of the quantum bioses perfectly fine. try the 880d950 one. works great for me now. 1.25v 3d 1.1v 2d

also what i was trying to say earlier was.. when i open the 880d950 bios in the editor it shows 1.15 volts. i have my original bios and it doesn't seem to work when i change the volts. works fine when i change the clocks but not the volts..
11-24-2007, 09:47 PM
003

Quote:

Originally Posted by G H Z

Did you re-install your drivers after flashing?

That would be tough since there is zero video signal after the flash.

What the **** is going on with these abit boards?! We need a fix! :shakes:
11-24-2007, 10:03 PM
G H Z

Did you guys with problems enumerate the adapters? The target device to flash is device 0 correct? (most likely yes if it doesn't work after the flash but still...)

003 have you tried pulling the card and clearing CMOS after the flash? Or trying the card in another rig?
11-25-2007, 03:12 AM
TouGe

Quote:

Originally Posted by eXceededgoku

DX10 games don't like overclocks for some reason, I had the same problem with Lost Planet in DX10. And I imagine it would be the same with GOW DX10 and others.

Quote:

Originally Posted by eXceededgoku

Np I have a feeling that Dx9 will work fine!
I await your results ;)

Yup, you were correct. Crysis works fine at 840/1165 in Dx9.

Looking for some input here. When running 850MHz/1100MHz @ 1.2V I can pass multiple loops of HDR/SM3.0 graphics tests (Canyon/Deep Freeze) but my computer locks up almost immediately when running SM2.0 graphics test (firefly forest), is there a reason I can pass SM3.0 tests multiple times but can't even get going on a SM2.0 test? With everything else 850MHz/1100MHz is stable, as far as I can tell.
11-25-2007, 03:48 AM
keenan

I have got the same problem, can run Crysis @ 850/1200 but PC freezes in Need for speed carbon

What is the default 3D voltage on these cards... mine seems to be 1.20V

Can someone please upload a HIS 2900XT 512mb DDR3 bios with 1.3V on 3D
11-25-2007, 05:42 AM
Don Quichote

modded 2900Pro Bios works on AN8-U after checksum edit

First try got a black screen after flashing with a modified Bios of my Pro.

After learning something about Hex-Editors:confused: , I got it to work like this:

modified Bios as I need

went into cmd and found out checksum with atiflash (atiflash -cf bios.bin)

opened Hex-editor and searched for some empty space (00 00 00 00)

entered what i need to get to my checksum ( e.g. if i get a checksum for the orig.bios of 0x8B00, but my modified file has 0x8A9B; I overwrote some zeros with 65 (0x0065) and as result got again to a checksum of 0x8B00)

Hope I explained it right, as I dont´t really know what I´m doing here. But after editing to the correct checksum, I even don´t need the -F option to flash.

I´m now running my Sapphire 512 MB Pro with Bios 2D 400/400 @ 0,9V, 3D 793/927 @ 1,2 V.

3dmark06 runs up to 850/1000
Crysis runs up to 793/1000 (over 793 core some strange flashing when smoke appears)
Hellgate an NFS Pro Street would both run the core up to 850, but doesn´t allow the VidRam to run more then 927

Perhaps I could get it higher with more power, but as I´m running stock cooler I think 793/927 ist nice for me.

Forgot to mention: runnig Vista DX10
11-25-2007, 07:45 AM
003

Do you have an abit motherboard??
11-25-2007, 09:57 AM
super dank

Quote:

Originally Posted by Don Quichote

opened Hex-editor and searched for some empty space (00 00 00 00)

entered what i need to get to my checksum ( e.g. if i get a checksum for the orig.bios of 0x8B00, but my modified file has 0x8A9B; I overwrote some zeros with 65 (0x0065) and as result got again to a checksum of 0x8B00)

^^^^ A ludicrous suggestion; don't try it. This will easily brick your card, and youl'll need another adapter to re-flash.

I think most ppl are using the editor now anyway.
11-25-2007, 12:19 PM
Don Quichote

Yes, an ABIT AN8-U. Had the same problem that after flashing modified bios, no adapter information for the new bios were displayed and it didn´t work. The same bios only with corrected checksum works, atiflash also displays adapter information after flashing (took my orig Bios to modify).
11-25-2007, 12:26 PM
Truckchase!

1 Attachment(s)

Quote:

Originally Posted by keenan

Can someone please upload a HIS 2900XT 512mb DDR3 bios with 1.3V on 3D

Attached is from a HIS XT 512MB, 1.3v 3d and 870/870 clocks.
11-25-2007, 01:56 PM
keenan

1 Attachment(s)

Quote:

Originally Posted by Truckchase!

Attached is from a HIS XT 512MB, 1.3v 3d and 870/870 clocks.

Strange thing tho, with my default bios, I can get 875/2490 dont know if this is max memory, but that is as high as rivatuner goes

But with your bios I can only do 900/2000. Anything above 900mhz core and my pc would freeze and anything above 2000mhz on the memory gives nice red artifacts

So, does my bios relax the memory timings or does it have a higher voltage on the memory..?

Seems odd that it gives a 500mhz boost in memory clocks

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