5870 EEPROM 80Bytes to small // Someone can Help? //

[dobiwan]

Hi guys, i have some serious problems with my ATI 5870.

I already show my issues to Fl0r!an, and he tells me that my EEPROM is 80byte to small to build a MAC Compatible rom.

I added my rom on the bottom of this Topic.
 
Maybe someone has a solution for me? or do i have to soldering a new EEPROM Chip?

Thanks guys.

Card Number is ATI-102-C00101(B)

I'm facing exactly the same problem with exactly the same rom : no room for EFI, i found a ROM which seems to be compatible with the earlier model of Sapphire HD 5870 1024 MB (113-C00101-101) and with enough room to inject EFI section, it's this rom (113-C00101-105) : https://www.techpowerup.com/vgabios/70080/sapphire-hd5870-1024-100201

I will try tomorrow and give a report here...

Edit, no luck with the 113-C00101-105 ROM, only one MCUC after merging with 5870_2.efi.rom from here (page 6 from the Radeon Port Mapping thread) : http://forum.netkas.org/index.php/topic,10827.msg31049.html#msg31049

[dobiwan]

I found another compatible ROM here (113-C00101-106) : https://www.techpowerup.com/vgabios/167837/167837
I'll retry tomorrow

[Rominator]

You misunderstood, primary goal is to find a PC rom that works on card and isn't too small.

[dobiwan]

You misunderstood, primary goal is to find a PC rom that works on card and isn't too small.

I must take a ROM with a big amount of "FF FF FF FF FF"?

[Spacedust]

Is the same rom as for reference ASUS HD5870 and it does work well.

[dobiwan]

I had success with 113-C00101-106, it show 5870 in system but not yet bootscreens...

Where is the best efi ROM to inject in ?

here is my working rom, if someone can tell me how to improve it, it would be nice :

[dobiwan]

Read a lot about the HD 5870... It seems that earlier models (no bootscreen like mine or like XFX HD-587X-ZNFV, Device Id:    1002 6898 Subsystem Id:    1002 0B00) have theses connectors :
- DVI-D Single link
- DVI-I dual link
- DP
- HDMI

and others models (the good cards with bootscreens like vapor-x, xfx, etc... Device Id: 1002 6898 Subsystem Id: 174B E140) have :

- DVI-I dual link
- DVI-I dual link
- DP
- HDMI

so what can i do to fix that ? i think it's linked to the efi ROM file, ATI personnality, etc..
i'm ready to test custom efi ROM if it's needed !