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
BIOS Unlock ASUS TUF F15 FX506HE Gaming ...
Last Post: aurellia
Today 03:46 PM
» Replies: 2
» Views: 2599
[REQUEST] Lenovo G570 Whitelist Removal ...
Last Post: eisen1000
Today 03:16 PM
» Replies: 0
» Views: 45
Boot Password on Asus UX330U (solved)
Last Post: neverstop
Today 03:09 PM
» Replies: 0
» Views: 76
Abit IP35 Pro: Microcode Update
Last Post: DeathBringer
Today 01:26 PM
» Replies: 10
» Views: 10320
bios unlock request aorus 15 xe4
Last Post: Sinon2k26
Today 11:24 AM
» Replies: 0
» Views: 68
Optiplex 7050 8th gen support
Last Post: Idaho
Today 07:57 AM
» Replies: 0
» Views: 89
AMI Bios flash tool - AFUDOS.EXE
Last Post: Ondrej2005
Today 05:05 AM
» Replies: 12
» Views: 198325
HP Omen EC firmware for 509V5AV - 17t-Ck...
Last Post: fixbricked
Yesterday 04:41 PM
» Replies: 0
» Views: 130
[REQUEST] Lenovo B580 (H5ETxxWW) Whiteli...
Last Post: Sverhnoviy
Yesterday 04:30 PM
» Replies: 83
» Views: 49376
[REQUEST] Acer Predator Helios 300 PH315...
Last Post: carlmour
Yesterday 12:08 PM
» Replies: 47
» Views: 33041
[REQUEST] Lenovo Ideapad Z710 (7FCNxxWW)...
Last Post: zhaduga
Yesterday 10:22 AM
» Replies: 230
» Views: 189154
Default original bios file for Acer Pred...
Last Post: Aliraaaza19977
Yesterday 07:20 AM
» Replies: 0
» Views: 149
[REQUEST] Lenovo IdeaPad L340 (BGCNxxWW)...
Last Post: Dudu2002
Yesterday 04:39 AM
» Replies: 107
» Views: 69418
[REQUEST] Acer Aspire E1-572(G,P) Bios U...
Last Post: pawelo
Yesterday 12:27 AM
» Replies: 376
» Views: 228372
[REQUEST] Lenovo Thinkpad T420s (8CETxxW...
Last Post: sidoravich
02-18-2026 01:32 PM
» Replies: 197
» Views: 134670
[SOLVED] Clevo W950JU BIOS unlock
Last Post: GigantTech
02-18-2026 01:18 PM
» Replies: 4
» Views: 263
[Request] Asuspro E510 MiniPC - Enable V...
Last Post: Peixeiro
02-18-2026 01:02 PM
» Replies: 0
» Views: 148
[REQUEST] Acer Nitro 5 AN515-54 BIOS Unl...
Last Post: GRH
02-18-2026 11:59 AM
» Replies: 145
» Views: 113485
req : hp pavilion g4 1200ee
Last Post: asm0089
02-18-2026 12:17 AM
» Replies: 0
» Views: 225
[REQUEST] HP Omen Max 16-ah0043dx
Last Post: keith1341
02-17-2026 03:57 PM
» Replies: 0
» Views: 140

Asrock Rack C612 ES CPU support
#1
I got:
1 EP2C612WS
2 EPC612D8A

4 ES CPUs
2 normal CPUs

an EEPROM programmer (in case I bricked a bios and couldn't get bios splash screen)

the thing is: all 4 of the ES CPUs work on the EP2C612WS. none of them work on either of the EPC612D8A, Dr Debug gives a "Cd" error code. The boards boot with normal CPUs.

so I got mmtool aptio, looked at the tab: CPU Patch, the microcodes of both of the bios and saw that the entries are different.

I extracted the microcodes of the EP2C612WS bios and deleted the microcodes of the EPC612D8A bios and inserted the EP2C612WS microcodes.

With this new bios the board post and boots with normal CPUs but still doesn't post with the ES CPU ("Cd" error code).

you guys any idea if I should do something else? or is that not how this ES CPU unlocking works?

bios files:
https://www.asrockrack.com/general/produ...S#Download
https://www.asrockrack.com/general/produ...A#Download
find
quote
#2
Tell sSpec of your ES CPUs.
Post a screenshot of third (Mainboard) tab of CPU-Z with supported CPU on EP2C612WS and EPC612D8A.
find
quote
#3
https://i.imgur.com/xVcyjWX.jpg this cpu
this is the screenshot of the seller for this cpu
https://i.imgur.com/QrMK3Pa.png

my ep2c612ws is running ubuntu now but it has worked with the above-mentioned cpu and the current cpus it has installed now:
https://i.imgur.com/OO7yqs9.jpg
this is the cpuz from the seller of this cpu
https://i.imgur.com/bnBfCmm.jpg
find
quote
#4
I can't help you without real information that I requested.

BTW: It's not microcode problem. Did you tried to use old version of BIOS (2.10) for EPC612D8A?
find
quote
#5
QHVK (ES1) CPU
EPC612D8A CPU-Z 3rd page (boots with a 2609V4 Cpu)
https://i.imgur.com/2AQ62Ec.jpg

weird it actually says X99...? its a fake c612?
find
quote
#6
Make a photo of main page in BIOS.
find
quote
#7
https://i.imgur.com/nqcsF9q.jpg
find
quote
#8
Last chance - BIOS 2.10
find
quote
#9
rolled back to 2.10
2609v4 boots

QHVK ES CPU gives the same "Cd" code, pressing reset gives a short 02 code (02 ap initialization before microcode loading) and goes straight back to Cd

https://i.imgur.com/SedE2Ih.jpg
find
quote
#10
Try to flash by hardware programmer BIOS from EP2C612WS.
find
quote


Forum Jump:


Users browsing this thread: 1 Guest(s)