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chris89

06-03-2015, 09:50 PM
(06-03-2015, 09:08 PM)genius239 Wrote: [ -> ]Inspiron 530S's bios type was award bios.
I have extracted bios file and flash utility ,then i already injected micro code into it.
Here is download link:
https://mega.co.nz/#!ngoyHZbQ!DDw3DrHGK9...J1502kDS2Y

Feng

----------------------------------------------------------------------------------------------------------------

Thank You!  Is there anything you can tell me about if support had to be removed?

Should I flash as normal through the dell standard flash utility I believe on DOS promt?

Thanks

chris89

06-03-2015, 10:14 PM
Wink Tongue Smile Tongue  Big Grin

KSOUL

06-13-2015, 09:22 AM
hi, i have the same machine, the hp DC7700 converible minitower and i would like modd my bios because my core 2 duo E7500 run at 1,60ghz and no 2,93ghz. i would like change multiplier coefficient in the bios. can you help me please ?

DeathBringer

11-25-2015, 01:00 PM
Post screenshots of first (CPU) & third (Mainboard) tabs of CPU-Z.

DeathBringer

08-31-2016, 11:44 AM
shulfe Wrote:[Image: DSLRroXIzZc.jpg]
[Image: E65h_xEXelM.jpg]
As Ypu can see, another problem is native CPU run at half speed.

DeathBringer

08-31-2016, 11:45 AM
[Image: 177c3au4lld7ig77g.jpg]
It isn't microcode error. This verification is in the compressed part of the BIOS.
Sorry but I can't unpack it for modifying...

DeathBringer

12-18-2016, 02:43 PM
But I don't know how unpack BIOS for HP DC7700 SFF Sad
I've unpack it by hpdeco! I'm analysing results.

DeathBringer

12-18-2016, 04:55 PM
I've found interesting code in HPBIOS.016 module (for BIOS v3.07). On error it set status number 0x16 (1802-Processor Not Supported).
Code:
A9C5        pushad
A9C7        mov     ax, 0E7h
A9CA        call    0B780h
A9CD        test    bl, 1
A9D0        jnz     0xAA0Bh
A9D2        push    254Bh
A9D5        call    12A1h
A9D8        cmp     ax, 2
A9DB        ja      0A9FFh
A9DD        mov     ecx, 1A1h
A9E3        rdmsr
A9E5        bt      eax, 12h
A9EA        jnb     0AA0Bh
A9EC        mov     dx, 0FA0Ch
A9EF        in      eax, dx
A9F1        xor     eax, 80000h
A9F7        test    eax, 80000h
A9FD        jnz     0xAA0Bh
A9FF        mov     bx, 16h
AA02        call    0FFFFh:7618h
AA07        cli
AA08        hlt
AA09        jmp     0AA07h
AA0B        popad
AA0D        retn
Bad news that BIOS has a digital sing and can't be modified.

DeathBringer

12-19-2016, 06:29 AM
chris89
Please check: can you downgrade to BIOS v1.15? It hasn't a digital sing.
Now I can patch the code, but I can't fix CRC Sad

Cocio21

12-21-2016, 05:41 PM
(12-19-2016, 06:29 AM)DeathBringer Wrote: [ -> ]chris89
Please check: can you downgrade to BIOS v1.15? It hasn't a digital sing.
Now I can patch the code, but I can't fix CRC Sad


So its the same with the dc7600 bios, can you look ? 

http://h20566.www2.hp.com/hpsc/swd/publi...id=1110575&swItemId=ir_73174_2&swEnvOid=181#tab2

http://h20566.www2.hp.com/hpsc/swd/publi...id=1110575&swItemId=PSG_I23450_108542&swEnvOid=181

Current bios on it is v1.06, but i would like to get at least that v1.54 in there, with support for Cpu´s too, or its just not worth keeping :-P

Chipset is 945G, so the board could at least support most 65Nm dual-cores @1066Mhz
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Bios Mods -The Best BIOS Update and Modification Source > Bios Mods Forum > CPU Support Upgrade Requests > HP DC7700 CPU upgrade