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
[REQUEST] HP Mini 1103 unlock Advance fe...
Last Post: boreau
Today 02:08 AM
» Replies: 2
» Views: 1770
Lenovo G50-70 Eliminar lista blanca
Last Post: Puentes
Today 01:55 AM
» Replies: 0
» Views: 45
Gigabyte AORUS 5 (KB/SB/MB) BIOS Unlock
Last Post: MigeruAnheru
Yesterday 07:30 PM
» Replies: 29
» Views: 17201
[REQUEST] Acer Aspire 3 A315-53 BIOS Unl...
Last Post: multimahn
Yesterday 07:11 PM
» Replies: 6
» Views: 6899
is it a Phoenix or Award ?
Last Post: angelog
Yesterday 01:17 PM
» Replies: 0
» Views: 118
[REQUEST] Lenovo G710 BIOS Whitelist Rem...
Last Post: pauljamesdaviz
Yesterday 10:47 AM
» Replies: 505
» Views: 307920
ASUS-TUF GAMING X570-PLUS (WI-FI)
Last Post: natanaelece
Yesterday 09:47 AM
» Replies: 0
» Views: 96
[Request] Lenovo g40-30 (80fy) whitelist...
Last Post: Matmadu
05-17-2026 11:35 AM
» Replies: 6
» Views: 6329
Fujitsu Esprimo D756/E9X Intel Xeon
Last Post: DeathBringer
05-17-2026 07:24 AM
» Replies: 8
» Views: 367
[Success] [Bios Mod] Dell XPS L321X EFI ...
Last Post: JohnG123
05-17-2026 06:29 AM
» Replies: 21
» Views: 42941
[REQUEST] Lenovo G570 (40CNxxWW) Whiteli...
Last Post: IcLeNd
05-17-2026 04:36 AM
» Replies: 174
» Views: 191080
[REQUEST] Lenovo G580 (5ECNxxWW) Whiteli...
Last Post: chimeara
05-17-2026 04:31 AM
» Replies: 1729
» Views: 1139842
AMI BIOS on de-branded laptop
Last Post: duckydan
05-16-2026 08:56 AM
» Replies: 0
» Views: 233
Lenovo T420 Ivy Bridge Support - i7-3540...
Last Post: spithink
05-15-2026 06:23 PM
» Replies: 39
» Views: 70072
is there a forum for coreboot porting an...
Last Post: spithink
05-15-2026 06:20 PM
» Replies: 1
» Views: 1200
[REQUEST] Lenovo B590 (H1ETxxWW) Whiteli...
Last Post: Yamri1991
05-15-2026 03:38 PM
» Replies: 802
» Views: 563247
[REQUEST] Lenovo Thinkpad T410s (6UETxxW...
Last Post: Tractor777
05-15-2026 11:46 AM
» Replies: 33
» Views: 46248
[REQUEST] Acer Nitro 5 AN515-54 BIOS Unl...
Last Post: DopeSkinup
05-14-2026 03:09 PM
» Replies: 146
» Views: 123408
Add CPU support Lenovo M715s
Last Post: blast32
05-14-2026 10:44 AM
» Replies: 8
» Views: 10820
[REQUEST] HP Elitebook 8440p Whitelist R...
Last Post: Blue_xyz
05-14-2026 04:51 AM
» Replies: 73
» Views: 58538

Lenovo A55 bios microcode help
#1
Hello smart people, i have stinky Lenovo A55 898562G LGA 775 ddr2 which has E2140 1.6Ghz in it, but i have bunch of core2duos/quads laying around that i would like to put them in this crappy machine that i got for 10$, but the pc wont get past initial startup screen with thoce cpu's in it. I can F1 to settings and it sees it (E 5200), but has unknown microcode revision so it wont post to windows with it.

Did useless lenovo bios update, had to install XP to do it, no change, doesnt have microcodes i need. 
On pc startup it says Phoenix so i tried updating microcode with cbrom195 using guides on delided website but it doesnt work, on commands it either hangs or says not found. Bios file for update has .USF extension, while backup file it creates has .BAK, i tried renaming them to .BIN and trying out any way i can but to no avail.

I did it once few years ago with MMTOOL on Acer machine, sucessfuly updated microcode for 771 xeons because i was having issues with it. But i cant open my bios files using that tool.

This lenovo thing has exausted me, i'm out of options as an amater, lost 2 days on it but nothing works, can somebody help, or just do it for me ? xd

I included zip files with bios.exe installation for OS update, and 2 bios files that came out from it, image20.usf is the one that is used to update with that lenovo tool, and other one is backup that it created.


EDIT: Uhh, idk if i posted this in correct subforum :/ Feel free to move it, i can't delete it


Attached Files
.rar   sky bios files.rar (Size: 2.27 MB / Downloads: 16)
find
quote
#2
Post a screenshot of third (Mainboard) tab of CPU-Z.
And make a photo of the screen with "unknown microcode revision" error.
find
quote
#3
(07-22-2020, 08:15 AM)DeathBringer Wrote: Post a screenshot of third (Mainboard) tab of CPU-Z.
And make a photo of the screen with "unknown microcode revision" error.

If i try to boot to windows it just stays at LENOVO screen (it doesnt even touch windows os, stays at lenovo bios thingy)


Attached Files Thumbnail(s)
           
find
quote
#4
You didn't post a photo of the screen with "unknown microcode revision" error.
find
quote
#5
(07-22-2020, 08:30 AM)DeathBringer Wrote: You didn't post a photo of the screen with "unknown microcode revision" error.

Thats it, i don't get any error when trying to boot it is just stuck at Lenovo screen, only thing i can see is in bios option when it says ''not available'', while with cpu that works it says (03/13/2007)  (ill post an image how it says with working cpu)


Attached Files Thumbnail(s)
   
find
quote
#6
Now i cant even F1 to bios settings after i updated bios with lenovo flash utility from OS -_-  I press F1 at the start when it is offering it, but after that it goes to this screen and stays in it.
Works fine with old cpu that it came with, but the ''new'' bios from lenovo website made it even worse (tnx lenovo!)

Also, i tried removing cmos battery for 10min and holding power button while plugged of the power, thats the first thing i tried, its not it.


Attached Files Thumbnail(s)
   
find
quote
#7
Try to disable Core Mutli-Processing.
find
quote
#8
I reverted back to older bios i had in backup, now i can F1 to settings again, this is what i get, and if i try to boot its stuck at lenovo screen, and now it beeps once xd

(will try disabling multicore, i think i allready did but will try again)


Attached Files Thumbnail(s)
           
find
quote
#9
Make current BIOS backup by Universal BIOS Backup ToolKit 2.0
Can you boot in native DOS with your Pentium E5700?
find
quote
#10
(07-22-2020, 09:02 AM)DeathBringer Wrote: Make current BIOS backup by Universal BIOS Backup ToolKit 2.0
Can you boot in native DOS with your Pentium E5700?
With this older bios i reverted back to i can boot in bios and enter F1 bios settings with E5700, but stuck when trying to boot to OS.
I have backups allready with that lenovo thingy, but i will do it with your tool you mentioned too if it makes any difference. 
Tried enableing single core only, and all those different settings, doesnt work, im pretty sure lenovo just didnt include cpu microcodes intentionally so you couldn't just upggrade your machine with better cpu like i'm trying to.

EDIT: Oh, you meant ''DOS'' ? How do i do it, F8 OR ?
find
quote


Forum Jump:


Users browsing this thread: 1 Guest(s)