Forum RSS Feed Follow @ Twitter Follow On Facebook

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[-]
Welcome
You have to register before you can post on our site.

Username:


Password:





[-]
Latest Threads
Samsung Chronos NP770 NP870 disable disc...
Last Post: faeterov
Yesterday 09:37 PM
» Replies: 0
» Views: 35
A Suggestion
Last Post: marco_otg
Yesterday 06:40 PM
» Replies: 0
» Views: 46
Bios MOD Lenovo L390/ Wifi support MacOS
Last Post: DennisWeaver
04-03-2025 10:50 PM
» Replies: 1
» Views: 903
[REQUEST] Acer Nitro 5 AN515-54 BIOS Unl...
Last Post: help_seeker
04-03-2025 01:23 PM
» Replies: 129
» Views: 54065
[REQUEST] Lenovo ThinkCentre M93p Tiny (...
Last Post: sairos
04-03-2025 10:23 AM
» Replies: 60
» Views: 47164
[REQUEST] Lenovo Thinkpad T440p (GLETxxW...
Last Post: uncle_Fedya
04-02-2025 03:54 PM
» Replies: 524
» Views: 222393
[REQUEST] Lenovo T440(S) (GJETxxWW) Whit...
Last Post: Dudu2002
04-02-2025 01:56 PM
» Replies: 497
» Views: 208252
[REQUEST] Gigabyte G5 KF BIOS unlock
Last Post: Dudu2002
04-02-2025 01:55 PM
» Replies: 3
» Views: 448
[REQUEST] Lenovo Legion 5 (EFCNxxWW) BIO...
Last Post: Dudu2002
04-02-2025 03:32 AM
» Replies: 44
» Views: 21221
Gigabyte b650e aorus master F33b
Last Post: Anem
04-01-2025 11:59 PM
» Replies: 0
» Views: 296
Xeon E5 2699 V3 (turbo Unlock) for Bios-...
Last Post: xlr8r
04-01-2025 11:42 AM
» Replies: 0
» Views: 400
[REQUEST] Lenovo Thinkpad X1 Carbon Gen3...
Last Post: Dudu2002
04-01-2025 08:50 AM
» Replies: 38
» Views: 18098
HP Probook 640 G2 bricked BIOS
Last Post: Milovanovic1992
04-01-2025 08:13 AM
» Replies: 0
» Views: 341
Dell Optiplex 3060 add 9th Gen CPU suppo...
Last Post: nickedasy
04-01-2025 03:31 AM
» Replies: 18
» Views: 1518
AM3 support for a Compaq
Last Post: DeathBringer
04-01-2025 01:01 AM
» Replies: 1
» Views: 401
Bios modding to support more RAM (Pegatr...
Last Post: DeathBringer
03-31-2025 01:33 PM
» Replies: 1
» Views: 557
[Request] ASUS X93SV (Whitelist Removal)
Last Post: Supercharger
03-30-2025 05:48 AM
» Replies: 1
» Views: 2344
Downgrade bios for Acer Aspire E1-571(G)...
Last Post: Rodrigowbs
03-29-2025 11:18 PM
» Replies: 24
» Views: 21743
[Request] Samsung Series 7 Slate PC
Last Post: SwCore
03-29-2025 10:23 PM
» Replies: 16
» Views: 17386
[Request] Alienware M18 R1 AMD(version) ...
Last Post: 009drmq
03-29-2025 09:20 AM
» Replies: 0
» Views: 579

DELL Precision 670
#1
Hi,

  I just got done adding cpu support to my BIOS hdr file. Got everything how i think i need it, header, microcode its all where it needs to be. Before i try it i have to fix the check sum. Problem is, that i have never done anything with the checksum. Can some please tell me if there is a step by step guide for this?
find
quote
#2
I can't make "a step by step guide", but I can make you need mod.
I've analysed latest BIOS (A7) for DELL Precision 670 and found block of microcode on offset=0x4C725 of hdr-file.
Code:
CPUID Offset Core     (Stepping)
0F34  003A   Nocona   (D0)
0F41  1C0A   Nocona   (E0)
0F42  2FDA   Nocona   (G0)
0F49  3BAA   Nocona   (G1)
0F48  437A   Paxville (A0)
0F43  4F4A   Irwindale(N0)  
0F4A  571A   Irwindale(R0)
What's CPU you want to add? Only one dual core CPU is supported by E7525 chipset - Xeon with Sspec=SL8MA (2.80 GHz).
find
quote
#3
(05-29-2016, 12:58 AM)DeathBringer Wrote: I can't make "a step by step guide", but I can make you need mod.
I've analysed latest BIOS (A7) for DELL Precision 670 and found block of microcode on offset=0x4C725 of hdr-file.
Code:
CPUID Offset Core (Stepping)
0F34 003A Nocona (D0)
0F41 1C0A Nocona (E0)
0F42 2FDA Nocona (G0)
0F49 3BAA Nocona (G1)
0F48 437A Paxville (A0)
0F43 4F4A Irwindale(N0)
0F4A 571A Irwindale(R0)
What's CPU you want to add? Only one dual core CPU is supported by E7525 chipset - Xeon with Sspec=SL8MA (2.80 GHz).

I sent you a copy of the HDR to your email. I think the modding is done, all but the checksum. You already had me on the right path as far as the mod went.
find
quote
#4
I didn't received "a copy of the HDR" from you. Is it pure theoretical mod?
find
quote
#5
the two processors i have on hand that i would like to try are 7140's sorry if i seemed impolite dude
find
quote
#6
Replace 4 bytes in your file on offset 0x70054:
7C E0 DC E7
with
0C 0B 3D 6B
But adding microcode don't add support for new CPU to the chipset.
find
quote
#7
(05-30-2016, 01:36 AM)DeathBringer Wrote: Replace 4 bytes in your file on offset 0x70054:
7C E0 DC E7
with
0C 0B 3D 6B
But adding microcode don't add support for new CPU to the chipset.

I do understand exactly what your saying. I have been comparing data sheets and I can clearly see a difference between the dp and mp pin layout. Thank you for working on the checksum I will try it later.
find
quote
#8
(05-30-2016, 09:55 AM)boilermaker8162 Wrote:
(05-30-2016, 01:36 AM)DeathBringer Wrote: Replace 4 bytes in your file on offset 0x70054:
7C E0 DC E7
with
0C 0B 3D 6B
But adding microcode don't add support for new CPU to the chipset.

I do understand exactly what your saying. I have been comparing data sheets and I can clearly see a difference between the dp and mp pin layout. Thank you for working on the checksum I will try it later.

Extreemly happy my hex editing worked, at the same time it would have been nice if the 7140's would have worked also. The pin layout makes it impossible for the 7140 to communicate with the board. An adapter would be nice. Thank you very much for the help!
find
quote


Forum Jump:


Users browsing this thread: