Someone in techpowerup found a way to unlock the 16 pipelines.
Original thread
Update:
DO NOT USE THE BIOS YOU PREVIOUSLY DOWNLOADED FROM THIS FORUM, IT MAY NOT WORK ON YOUR CARD AS THERE ARE TWO REVISIONS TO THE R580 CORE
Long story short, there are basically two revisions of the ATI R580 core. One is referred by the engineers as the R580"XL" and the other one is known as R580"PRO". Apparently, if you swap the BIOS on the cards, IT WILL NOT WORK. I just flashed Migou's R580"XL" version BIOS into my card, which is based on the R580"PRO" core, it fked up, and ATIFlash no longer recognizes the card.
If you still want to pursue the 16pp unlock, please post your dumped BIOS and I will mod it for you. If you want to mod it yourself see the X1800GTO @ X1800XT mod thread. Works upon the same principle.
Before sending me the BIOSes, open the BIOS with Rabit and see if the Description says R580 "XL", if it does, don't bother. Make sure before sending me the BIOSes that the description says R580 "PRO" as shown below:
To sum it up, here are the requirements:
i)Make a backup of your card's bios. The bios description must reflect as "R580 Pro" when opened using RaBIT editor
ii)Rams must be Samsung 1.4ns
iii)Use ATIflash dos proggie to flash the bios
Checkout the thread for further updates.
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