Re:XpertVision Radeon HD 2600 PRO, and tweaked BIOS update? - 2007/12/01 10:07amihov wrote: Oh, just an update, I got it back up and running but I just wonder where can I get a BIOS for the card. The tool has no option to back up the original BIOS. As mentioned, since you are strange having issues are not knowing what you are really doing, then you should better be off using the old fashion way. If you have issues then you will need to make a bootable DOS media like a floppy or USB memory stick and use ATIFlash to backup your original BIOS as such.
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amihov
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Re:XpertVision Radeon HD 2600 PRO, and tweaked BIOS update? - 2007/12/01 18:07I am sorry that I have been such a pain. I manage to backup the BIOS now and I was trying to find the entry for the voltage there and I can't see them.
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amihov
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Re:XpertVision Radeon HD 2600 PRO, and tweaked BIOS update? - 2007/12/01 19:54This is the Radeon HD 2600 PRO AGP BIOS from my card. The card is a Sapphire version with 512MB DDR2 memory. The default clocks are 600MHz core and 1000MHz DDR2. I hope that this file can be edited. I used ATIWinFlash to create the backup. I don't know how to edit the file. Thank you!
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nvfan
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Re:XpertVision Radeon HD 2600 PRO, and tweaked BIOS update? - 2007/12/01 21:55I have the same problem, Sapphire Radoen HD 2600 XT with GDDR3 won't accept modified BIOS. The BIOS I used to flash is diferent in only 2-3 values I changed. Problem manifests with the inability to boot, and during flashing operation the version and serial number of BIOS appear as blank space. The card accepts the different version of official BIOS. Is it possibile for BIOS to have some kind of signature? And what program is used to edit the BIOS?
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Mavke
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Re:XpertVision Radeon HD 2600 PRO, and tweaked BIOS update? - 2007/12/02 09:26nvfan wrote: Problem manifests with the inability to boot, and during flashing operation the version and serial number of BIOS appear as blank space. The card accepts the different version of official BIOS. Is it possible for BIOS to have some kind of signature? And what program is used to edit the BIOS? Just to highlight that every BIOS has a CRC value at the end, this makes sure that the BIOS is really as it should be and by editing via a HEX editor you are of course screwing that up, so the CRC value is no longer correct. What program is used, well any HEX editor should just be fine, doesn't really matter.
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RAH
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Re:XpertVision Radeon HD 2600 PRO, and tweaked BIOS update? - 2007/12/02 14:15I have found that out. My Sapphire Radeon HD 2600 PRO would not boot if forced install. Changing the CRC with the last three to match, allows install of the BIOS. But then the drivers are not recognized by Windows XP. No card found. Anyone know of a read, for changing CRC. I must not be doing it right.
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RAH
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Re:XpertVision Radeon HD 2600 PRO, and tweaked BIOS update? - 2007/12/02 15:06Siggi wrote: What's the values of the registry entries DDCaps0017 and the aperture config? If you still have 3DMark03 and run CPU Test 2 and GT4 MotherNature, did you have noticed anything unusually? If you mean the glitch where it brings the card to its knees, almost stopping. I found that the beta patch released for Crysis fixed this issue on my card. The Catalyst 7.11 drivers brought it back, so I stopped using them.
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Siggi
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Re:XpertVision Radeon HD 2600 PRO, and tweaked BIOS update? - 2007/12/02 22:57I have tested to change the GPU voltage, also I found out where the problem with ATIFlash and the "-f" command. For these tests I used the BIOS attached file, from the first post in this thread. This XpertVision Radeon HD 2600 PRO BIOS can readily be flashed with ATIWinFlash, as an original BIOS. If you edit some values in your Radeon HD 2600 BIOS it is not sufficient to correct the checksum. The checksum is just simply the sum of all bytes, but there are still other algorithms which protect this file. A complicated story and it is better that we are spare details at this point.
Important for us is that in this case you must force the flashing. Therefore it is needed to use the "-f" command with ATIFlash. Furthermore the checksum must be identically equal to the original BIOS. It seems contradictionary, but indeed it is necessary. I've been testing this. I recommend to use ATIFlash for DOS. A simply and classic way is to use a floppy as boot disk. This floppy disk contains ATIFlash, furthermore an original BIOS and your modified BIOS. Don't forget to change the boot sequence in the mainboard BIOS. The floppy should set to first boot device. If you haven't got a floppy anymore you have to use a bootable CD or USB stick.
ATIFlash v3.xx Commands... "atiflash -s [adapter number] save.rom" (Save Original BIOS) "atiflash -p [adapter number] new.rom" (Normal BIOS Flash) "atiflash -p -f [adapter number] new.rom" (Forced BIOS Flash) None of this lines would be blank. However there are still blank lines, it is unnecessary to reboot the PC. It means BIOS programming failed. The video card would not be recognized after reboot .In this case I recommend to flash back your original BIOS instantly. My favorit HEX editor is WinHex. The restriction is that files just up to 200kb can be saved. But that doesn't matter. This picture shows the result with changed GPU voltage values.
amihov wrote: I am sorry that I have been such a pain. I manage to backup the BIOS now and I was trying to find the entry for the voltage there and I can't see them. Some values of your original BIOS, first the default clock is set at 600/400MHz, the Overdrive limit is set at 660/550MHz and the PowerPlay states 4, meaning 600/500MHz and voltage 1.1V on the GPU but no 2D mode settings. So I have attache some updated, tweaked BIOS files for you...
GPU up to 1.27V, Overdrive still 660/550MHz => Checksum Hex = 9800 / Dez = 38912
I advise to correct the checksum manually. Recommended is the section between 0x24 and 0x2D. If insufficient, then use the section from the end of 0x10F backwards.That is the section where the product is described.
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Siggi
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Re:XpertVision Radeon HD 2600 PRO, and tweaked BIOS update? - 2007/12/02 23:21Some addendum, force flashing BIOS for a Xpertvision Radeon HD 2600 PRO with GDDR3 memory. GPU up to 1.27V, Overdrive up to 850/850MHz
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RAH
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Re:XpertVision Radeon HD 2600 PRO, and tweaked BIOS update? - 2007/12/02 23:53So what checksum do we make equal. Checksum 16, CRC 16 or what? In my BIOS checking I notice a 3300. This is the checksum 16 output. I always try to use a DOS for flashing. Will give it another try, using the 0x24 to 0x2D.
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TpuGPU-Z v0.3.1
