[REQUEST] Unlock C1e option in HP IPMEL-AE bios, and other cpu options, if possible

[bolc]

Hi to all,

I am new here so excuse my ignorance regarding bios modding... The only mod I know to do is insert Cpu microcodes in AMI Roms using MM tool...
Talking of this, I inserted latest codes for 45 nm 775 and Xeon 771 in the attached ROM file for IPMEL-AE board, to mount a X5460 cpu, to give a final boost kick to the pc.

The pc of concern is a HP HP link
with a Pegatron board IPMEL-AE
MB link

After modding and flashing this bios, the bios posts fine, recognizes the cpu but windows hangs during the Welcome message. I had the same problem before on an Asus P5Q and think it is related to C1E not being disabled. The bios does not offer the possibility to disable it...

Unlocking CPU features such as C1E, C-state technology, EIST may solve the problem ; the bios already includes Virtualisation Tech and Execute Disable bit option.

Advices and help from any good soul with a deep knowledge on this matter are most welcome.

Thank you in advance for reading.
Cheers

[bolc]

Hi all,

I eventually found a way to disable states above C1 in the registry
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Intelppm
and change the START value from 3 to 4

Lost the EIST function and changing multiplier (EIST is fine with Xeons), but killed the C1E-like bug, and Windows boots and runs fine at least.
Fan speeds are a bit high (but not the highest though...), this will be hardware modded with fanmate or eqvlt.

++

Cheers