Hey guys! This is a short introduction to my mod for my Asus P6T Deluxe V2
which I have crossflashed with a modded P6X58D-E
BIOS. This allows me to use a much newer Intel Option Rom (OROM) for my 2 x 2TB SSHDs in RAID-0 and contains the option to use a voltage offset (which the original BIOS did not have). Thus I am now able to use my Xeon E5645 @ 2.4 Ghz @ 1.03 V at idle (runs @ 3.8 Ghz @ 1.18 V under load). Also thanks to the new OROM I get better results for my SSHDs. Use it at your own risk, you'll find the necessary tools here : https://drive.google.com/open?id=0Bx...mt1b201Q1RQS00
As I have upgraded my CPU to a X5650, I have also uploaded a modified P6TWS Pro BIOS with the newest Microcode, but with an older 10.x Intel Option ROM with TRIM support though.
Advantages: 1) High TDP lets you overclock beyond the TDP limit of your CPU, 2) Turbo mode can be disabled, 3) unbuffered ECC-RAM support (works with the other BIOS in non-ECC mode as well)
Disadvantages: 1) No dynamic voltage regulation, 2) no newer Intel Option Roms beyond 10.x, 3) Firewire does not work
- much newer Microcode (from June/August 2015) for Nehalem and Westmere CPUs (CPUID: 06A4, 06A5 and 06C2), deleted support for engineering samples (CPUID: 06A0 and 06C0)
- Intel Option ROM: 8086-2822_v15032675.bin (tested and works with my 2x 2 TB SSHD RAID-0, also got it to work with the newer 8086-2822_v15102545.bin and versions below, all OROMs newer than that fail to load the RAID array due to size)
- deleted the ASUS splash screen
The mod153mc3 version contains all of the above and additionally uses a modified Marvell LAN Option ROM (same version 11ab-4380_v66813.bin) which is untested and might not work due to size.
What is known not to work?
- the top PCIe x4 slot doesn't work anymore
- ASUS Express Gate is recognized as a *HiSpeed* USB Mass Storage Device, which can be disabled in Windows
- the CPU TURBO cannot be disabled
Assuming you are currently on the stock BIOS of your P6T Deluxe V2, you'll need to flash the new P6X58D-E BIOS with an engineering version of AFUDOS. EZFlash won't accept it! The file provided here is AFU236U.exe and will do the job.
1.) You'll need a bootable USB stick with the aforementioned AFUDOS version and the BIOS file. Make sure that it runs in HIGHMEM mode or you'll get an error while trying to flash the BIOS. Some USB-Boot-Tools fail to do so.
2.) Assuming you are in the right directory where the files are located type the following into the command prompt (*it promptly will start the flashing process without further warning*)
afu236u /iBIOSFILE /pbnc /n
Notice that there is no space between the /i and the name of the BIOS file.
3.) After restart, you should be greeted with the new BIOS.
*updated both BIOS files with new Microcode for Nehalem and Westmere from May 2018* --> mod156 for the P6X58D-E / the p6tws4 for that board.