greenspark
n00b
- Joined
- Sep 2, 2016
- Messages
- 2
I have a Asus P8B75-M-LX that I purchased as a working board, but it didn't.
Trying to figure out what's wrong with it. Tested supported processors from first bios version, several RAMs but it does not work.
OK Trying to figure out if it could be a BIOS problem, I created a backup from both onboard BIOS chips and get them identified by FD44Editor.
Humm... I expected to see an ASUS bios on both chips.
So I assumed the right chip to be corrupt and copied the left chip to the right chip. (I made a backup before).
- Both chips with left chip info: No boot. It does not even beep when RAMs are removed.
So I prepared for a total debricking using Tools to flash and recover BIOS on ASUS P8xxx boards (FD44Editor, FTK).
Okay, I may have some problem with the new BIOS version. I downloaded the same version in the chips: 0803
So far so good, I preferred to go back:
Looks like there's something in these chips that needs to be here and there. Hummm.... Any clues?
Trying to figure out what's wrong with it. Tested supported processors from first bios version, several RAMs but it does not work.
Sympthoms: when plugged in, I get onboard green led lit. When I short Power-On jumper pins, the mobo starts fans, but nothing is displayed on the screen, even with an additional onboard VGA. No beeps. No boot. All signs of life beyond this is are only seen when I remove RAMS, that I can get it to make beeeeep-bip-bip.
OK Trying to figure out if it could be a BIOS problem, I created a backup from both onboard BIOS chips and get them identified by FD44Editor.
- Left CHIP: Winbond 25Q64FVA1G is detected by CH341A programmer as a W25X64 chip (8MByte). Contents can be read. Chip dump can be read with FD44Editor and is detected as P8B75-M-LX, BIOS date: 10/10/2012, BIOS version: 0803, ME version: Not present, GbE version: Not present (and some additional UUIDs, serials and so).
- Right CHIP: Winbond 25Q64FVA1G is detected by CH341A programmer as a W25X64 chip (8MByte). Contents can be read. Chip dump can be read with FD44Editor but I get: "Error parsing BIOS DATA. $BOOTEFI$ signature not found. Please open correct ASUS BIOS file". The file is totally different from Left chip's version and does not look like a BIOS file.
Humm... I expected to see an ASUS bios on both chips.
So I assumed the right chip to be corrupt and copied the left chip to the right chip. (I made a backup before).
- Both chips with left chip info: No boot. It does not even beep when RAMs are removed.
So I prepared for a total debricking using Tools to flash and recover BIOS on ASUS P8xxx boards (FD44Editor, FTK).
- I downloaded BIOS version 1403 from ASUS and used FD44Editor to prepare a new BIOS based on the info read in the left chip. Downloaded a CAP file. FD44Editor gave me the .bin file.
- Flashed left and right chips.
- Again, No boot. It does not even beep when RAMs are removed.
Okay, I may have some problem with the new BIOS version. I downloaded the same version in the chips: 0803
- I downloaded BIOS version 0803 from ASUS and used FD44Editor to prepare a new BIOS based on the info read in the left chip. Downloaded a CAP file. FD44Editor gave me the .bin file.
- Flashed left and right chips.
- Again, No boot. It does not even beep when RAMs are removed.
So far so good, I preferred to go back:
- Recovered Left backup to Left chip
- Recovered Right backup to Right chip.
- No boot, but at least beeps when RAM is removed.
Looks like there's something in these chips that needs to be here and there. Hummm.... Any clues?