Someone ever Flashed a 7950 with Samsung RAM?

[Revoxy]

Hey,
As far as i know Hynix and Epildia Memory is usually used in the 7950 Cards.
I got a reference Design from Gigabyte that has Samsung RAM on it.

I already tried to flash it with no results:

• Using a ROM for Hynix or Epildia Memory gives me a Bootscreen but with false Colours
• Using the Netkas Skript first didn't work, then i found a new version of fixrom and the script worked. Nevertheless i never got a Bootscreen but the card works "fine" with the PC Bios Part
• I tried it by hand with a HEX editor (found all relevant hints in the original File, this forum and netkas gave me for the right Places) and used a Windows Efi tool to correct the checksum, same problem as with the Netkas Skript.
• I searched for "Hynix" in the original Rom, and replaced all timings with Samsung Timings (https://www.overclock.net/forum/67-amd-ati/1554360-tahiti-memory-timings-patch-hynix-vram.html) -> no Picture

Is it possible that the MAC Part of the ROM Memory timings two? Is all Hardware relevant stuff in the PC-ROM?

Just for the Record, i already ordered a 280x Card. I started this thread to understand a little bit more about the Efi problematic.

I attachted The original ROM.

GPU Device Id: 0x1002 0x679A
xxx-xxx-xxx
GV-R795WF3-3GD/FW0
(C) 1988-2010, Advanced Micro Devices, Inc.
ATOMBIOSBK-AMD VER015.030.000.001.000000
R795W3GD.FW0
Memory Support
  3072 MB, GDDR5, Samsung K4G20325FD

 

[MisterAndrew]

That's really interesting. Probably less hassle to get one with Hynix or Epildia memory. But Apple may give us boot screens within the next couple weeks on new AMD cards via a firmware update so you might want to wait.