How to transfer the EPA logo from a 2010 Award BIOS to 2012 Award BIOS? \ VOGONS

How to transfer the EPA logo from a 2010 Award BIOS to 2012 Award BIOS?

Topic actions

First post, by xtreger

Posted on 2025-09-14, 10:08

xtreger Offline

Rank Member

Rank: Member
Posts: 117
Joined: 2023-11-16, 11:09

I have a motherboard (GA-EX58-UD3R) whose two BIOS versions I've downloaded - FI and FK. The FI version has the energy star logo, while the FK version doesn't. So I wanted to ask - in this case is it possible to transfer the energy star logo from FI to FK? Has anyone done this before?

What I've already tried: I used cbrom to extract AwardBmp.bmp from the FI bios image, the file directly gets extracted as a valid BMP (NOT .epa) file. Directly trying to insert this bmp into the FK image gives an error (bmp not allowed), so I used EPACoder to convert bmp into epa, renamed the file to "AwardBmp.bmp" and then successfully inserted this into the FK bios image using cbrom.

Flashing this image gives no issue nor any checksum error, yet when I boot, the logo still can't be seen in the post screen. Is there any way to get the BIOS to recognize that this logo file exists and to display it?

Reply 1 of 3, by PC Hoarder Patrol

Posted on 2025-09-14, 10:50

PC Hoarder Patrol Offline

Rank l33t

Rank: l33t
Posts: 2424
Joined: 2018-03-04, 19:59

Maybe they also removed the code to display any logo, even if the logo is present... https://www.gigabyte.com/Support/Consumer/FAQ/1429 ...as older models failed the then v6.0 EPA Energy Star guidelines... https://www.energystar.gov/sites/default/file … equirements.pdf

Reply 2 of 3, by maxtherabbit

Posted on 2025-09-14, 16:20

maxtherabbit Offline

Rank l33t

Rank: l33t
Posts: 3734
Joined: 2018-10-30, 16:36
Location: Richmond, VA

I vaguely remember there being two distinct different "epa" file formats which are not mutually compatible

Reply 3 of 3, by kmeaw

Posted on Yesterday, 00:31

kmeaw Offline

Rank Member

Rank: Member
Posts: 179
Joined: 2023-03-20, 01:41

I have compared FI and FK versions and their main module is different in the subroutines that are used to locate the logos - FK doesn't load module 4002:0000, the code uses the fullscreen logo (4000:0000) if it is enabled in the settings ("Full Screen LOGO Show").

disassembly

This is EX58UD3R.FI:

1; POST procedure dispatcher
2000E3D98  B90100            mov cx,0x1 ; Start from POST code 01
3000E3D9B  90                nop
4000E3D9C  BFA73D            mov di,0x3da7 ; Follow the POST handler table at E000:3DA7
5000E3D9F  E80A46            call 0x83ac  ; Run POST tests

Let's look at the code corresponding to the POST code 0x2D. First the FI version (hexdump -x -s 0x3da7 ex58ud3r.BIN|head):

10003da7    239e    23ec    2456    245b    246b    2485    2486    24c2 ; 1-8
20003db7    24e8    2560    256f    2577    2578    2579    25b9    25ba ; 9-10
30003dc7    25c9    2609    262b    262c    2634    2635    2636    2638 ; 11-18
40003dd7    264a    264b    264c    26dc    27a4    27ab    27ac    27ad ; 19-20
50003de7    27ae    27b4    27b5    27dd    28cd    28ed    2908    2942 ; 21-28
60003df7    2944    2a78    2a7d    2b3c    2b40    32db    32dc    32dd ; 29 2a 2b 2c 2d 2e 2f 30

1000E2B40  68A119            push word 0x19a1 ; load language strings
2000E2B43  E881AF            call 0xdac7 ; far call into awardext
3000E2B46  B80000            mov ax,0x0
4000E2B49  8ED8              mov ds,ax
5000E2B4B  813E72043412      cmp word [0x472],0x1234 ; ctrl-alt-del?
6000E2B51  7452              jz 0x2ba5 ; yes, doing quick post
7...
8000E2BA5  68494A            push word 0x4a49 ; call some stub in F-seg
9000E2BA8  E821AF            call 0xdacc
10000E2BAB  68F42B            push word 0x2bf4 ; init mono/color flag and cursor
11000E2BAE  E81BAF            call 0xdacc
12000E2BB1  B800F0            mov ax,0xf000
13000E2BB4  8ED8              mov ds,ax
14000E2BB6  E88B00            call 0x2c44 ; show logo
15...
16000E2C44  808EC30110        or byte [bp+0x1c3],0x10
17000E2C49  F6461430          test byte [bp+0x14],0x30
18000E2C4D  7401              jz 0x2c50
19000E2C4F  C3                ret
20000E2C50  06                push es
21000E2C51  1E                push ds
22000E2C52  60                pusha
23000E2C53  B0FF              mov al,0xff
24000E2C55  E83D59            call 0x8595
25000E2C58  9ABA070020        call 0x2000:0x7ba
26000E2C5D  7302              jnc 0x2c61
27000E2C5F  EB0E              jmp short 0x2c6f
28...
29000E2C6F  C6862C0255        mov byte [bp+0x22c],0x55
30000E2C74  E89200            call 0x2d09
31000E2C77  720D              jc 0x2c86
32...
33000E2C86  B81200            mov ax,0x12
34000E2C89  CD10              int 0x10
35000E2C8B  80BE2C0255        cmp byte [bp+0x22c],0x55
36000E2C90  7407              jz 0x2c99
37000E2C92  E84E01            call 0x2de3
38000E2C95  0F825F00          jc near 0x2cf8
39...
40000E2DE3  C6862C0200        mov byte [bp+0x22c],0x0 ; reset epa state
41000E2DE8  80A62D02FE        and byte [bp+0x22d],0xfe
42000E2DED  BF0C00            mov di,0xc ; fetch block 4002:0000 (AwardBmp.bmp)
43000E2DF0  E88158            call 0x8674 ; decompress
44000E2DF3  7217              jc 0x2e0c ; decomp failed
45000E2DF5  B80040            mov ax,0x4000 ; target segment
46000E2DF8  8ED8              mov ds,ax
47000E2DFA  66813E0000415742  cmp dword [0x0],0x4d425741
48         -4D ; check 'AWBM' magic

FK:

1000E3BB4  B90100            mov cx,0x1 ; Start from POST code 01
2000E3BB7  BFC23B            mov di,0x3bc2 ; Follow the POST handler table at E000:3BC2
3000E3BBA  E8EF47            call 0x83ac ; Run POST tests

hexdump -x -s 0x3bc2 test.BIN|head

10003bc2    21da    2228    2292    2297    22a7    22c1    22c2    22fe
20003bd2    2324    239a    23a9    23b1    23b2    23b3    23f1    23f2
30003be2    2400    243e    2460    2461    2469    246a    246b    246c
40003bf2    247e    247f    2480    2510    25d6    25dd    25de    25df
50003c02    25e0    25e6    25e7    260f    26fe    271e    2738    2772
60003c12    2774    28a4    28a9    2966    2968    30cf    30d0    30d1 ; 29 2a 2b 2c 2d 2e 2f 30

1000E2968  68B619            push word 0x19b6 ; lang
2000E296B  E819B3            call 0xdc87
3000E296E  B80000            mov ax,0x0
4000E2971  8ED8              mov ds,ax
5000E2973  813E72043412      cmp word [0x472],0x1234 ; ctrl-alt-del
6000E2979  7450              jz 0x29cb
7...
8000E29CB  688947            push word 0x4789
9000E29CE  E8BBB2            call 0xdc8c
10000E29D1  68342A            push word 0x2a34
11000E29D4  E8B5B2            call 0xdc8c
12000E29D7  B800F0            mov ax,0xf000
13000E29DA  8ED8              mov ds,ax
14000E29DC  E88D00            call 0x2a6c
15...
16000E2A6C  808EC30110        or byte [bp+0x1c3],0x10
17000E2A71  F6461430          test byte [bp+0x14],0x30
18000E2A75  7401              jz 0x2a78
19000E2A77  C3                ret
20000E2A78  06                push es
21000E2A79  1E                push ds
22000E2A7A  60                pusha
23000E2A7B  B0FF              mov al,0xff
24000E2A7D  E8465B            call 0x85c6
25000E2A80  9ABA070020        call 0x2000:0x7ba
26000E2A85  7302              jnc 0x2a89
27000E2A87  EB0E              jmp short 0x2a97
28...
29000E2A97  C6862C0255        mov byte [bp+0x22c],0x55
30000E2A9C  E89000            call 0x2b2f
31000E2A9F  720D              jc 0x2aae
32...
33000E2B2F  E8EFFF            call 0x2b21 ; fullscreen logo is enabled in settings?
34000E2B32  0F82C700          jc near 0x2bfd ; disabled, so fail fast
35000E2B36  BF0400            mov di,0x4 ; fetch block 4000:0000 (ex58ud3r.bmp)
36000E2B39  81CF0080          or di,0x8000
37000E2B3D  BE28F0            mov si,0xf028 ; target is at 2.5M (high memory)
38000E2B40  E8625B            call 0x86a5 ; decompress
39000E2B43  0F82B600          jc near 0x2bfd ; decomp failed, no logo
40...
41000E2BFB  F8                clc ; return success
42000E2BFC  C3                ret
43000E2BFD  C6862C0200        mov byte [bp+0x22c],0x0 ; reset epa state
44000E2C02  80A62D02FE        and byte [bp+0x22d],0xfe
45000E2C07  F9                stc ; indicate failure
46000E2C08  C3                ret

Go to top of page Go to top of page

Back to General Old Hardware