TYAN S2912 2 CPU six core

[DeathBringer]

You can try to boot with two six-core CPUs but with DIMMs for CPU1 only.

[krzysiaczek99]

it didnt help. However I noticed different thing. Normal boot sequence for 2x2378 is 86-87-FF-86-87-FF-86-87-45. So it looks like retry or double failure but continuation anyway. In case of 2x2435 is 86-87-FF and stops there....Are you able to follow the code e.g using IDA as maybe it is patchable ??

[DeathBringer]

Too little research data for disassembly BIOS.

[krzysiaczek99]

seems it was similar thread already on bios-mod This MB don't have NVIDIA chipset i think

https://www.bios-mods.com/forum/Thread-S...2-E?page=2

TYAN replied to me that S2912e should work and to check the stepping of CPUs if its the same

[DeathBringer]

S2912E is not S2912. They have different VRMs.
KFN32-D SLI is based on Nvidia's nForce Professional 3600.

[krzysiaczek99]

in this review s2915 with NVIDIA 3600 work great on 2xsix core. Guy pays attention to EPS power supply. Hmmm I feeded empty 4pin port from MOLEX and also tried ATX 2.3 very good PS for all 8+4 pin....who knows...if i will get any i will try

http://www.newegg.com/Product/Product.as...6813151096

[krzysiaczek99]

in this review s2915e with NVIDIA 3600 worke great on 2x six core. Guy pays attention to EPS power supply. Hmmm I feeded empty 4pin port from MOLEX and also tried ATX 2.3 very good PS for all 8+4 pin....who knows...if i will get any i will try

http://www.newegg.com/Product/Product.as...6813151096

[DeathBringer]

From Thunder n3600R manual:

Precautions: The Thunder n3600R supports SSI, EPS12V type power supplies
(24pin + 8pin +4pin) and will not operate with any other types. For proper power
supply installation procedures see page 32.
DO NOT USE ATX 2.x or ATXGES power supplies as they will damage the
board and void your warranty.

And this reviews about S2915E, not S2912.

[DeathBringer]

Are you sure you PSU haven't 4 pin connector?
Your PSU is CPSU-0072. It's remarked Delta DPS-500GB.
Update: it's Delta DPS-500GB M without 4 pin connector.

[krzysiaczek99]

it has 24 + 8 pin. 4 pin is empty but i splitted voltage from MOLEX and feed empty 4 pin. Main difference from specification between 'e' and non 'e' servers is MB type and PS. All 'e' versions have EPS, non 'e' delta power. Actually if you see photos of MB on datasheets both 'e' and non 'e' have 4 pin empty.