Bios Mods -The Best BIOS Update and Modification Source

I've analysed BIOS. I've found microcode for these CPUID:
6F5 - Woodcrest B1
6F5 - Woodcrest B2
6F7 - Woodcrest B3
F49 - Prescott G1
F47 - Smithfield B0
F64 - Cedar Mill C1
F65 - Cedar Mill D0
F4A - Irwindale R0
10661 - Conroe-L A0
6FB - Conroe G0
6FD - Conroe M0
6F6 - Conroe B2
6F2 - Conroe L2
So current BIOS already has microcode for Q6x00. But I'm not sure about support for quad cores CPU...

Found some results Optiplex 320 & Core 2 Duo with native FSB=1066 & 1333 Mhz:
Core 2 Duo E6300 @ 1.40 GHz FSB 1066->800
Core 2 Duo E6320 @ 1.40 GHz FSB 1066->800
Core 2 Duo E6400 @ 1.60 GHz FSB 1066->800
Core 2 Duo E6600 @ 1.80 GHz FSB 1066->800
Core 2 Duo E6700 @ 2.00 GHz FSB 1066->800
Core 2 Duo E6550 @ 1.40 GHz FSB 1333->800
Core 2 Duo E6750 @ 1.60 GHz FSB 1333->800
Core 2 Duo E6850 @ 1.80 GHz FSB 1333->800
So FSB=1066 & 1333 Mhz aren't supported by this motherboard. CPUs can work with FSB=800 Mhz maximum.

Like this?:

Yes, the cat's out of the bag. I have little knowledge about the workings of CPU's. This has been a very educational experience though. Thanks.

No, you isolated BSEL2 instead of BSEL1.

(09-30-2017, 02:12 PM)DeathBringer Wrote: [ -> ]No, you isolated BSEL2 instead of BSEL1.

Oh, duh. That's from someone else. I was just curious if I needed to tape off the other linked pin above it. Cool, I will try and get back to you.

Hello, optiplex 320, help me, mod bios + cpucode xeon x3230

ALL.BIN - CPU codes
cpu000006fb_plat00000001_ver000000ba_date20101003.bin
cpu000006fb_plat00000004_ver000000bc_date20101003.bin
cpu000006fb_plat00000008_ver000000bb_date20101003.bin
cpu000006fb_plat00000010_ver000000ba_date20101003.bin
cpu000006fb_plat00000020_ver000000ba_date20101003.bin
cpu000006fb_plat00000040_ver000000bc_date20101003.bin
cpu000006fb_plat00000080_ver000000ba_date20101003.bin
O3201112.HDR and O3201112.ROM (dos) these O3201112.EXE

cpu buy aliexpress

CPUs with FSB=1066 Mhz aren't supported.
Quad core CPUs aren't supported too.

(06-24-2020, 03:27 PM)DeathBringer Wrote: [ -> ]CPUs with FSB=1066 Mhz aren't supported.
Quad core CPUs aren't supported too.

thx, please tell me which processor is the highest in optiplex 320?

Core 2 Duo E4700 is best compatible, but I recommend cheep E4600 - https://aliexpress.ru/item/32284151332.html