=The Official ASUS P6T Series Motherboard Owners Club= - Page 45 - Overclock.net - An Overclocking Community

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=The Official ASUS P6T Series Motherboard Owners Club=

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post #441 of 446 (permalink) Old 07-05-2019, 12:47 PM
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Quote: Originally Posted by jamesy829 View Post
Hi everyone, I'm a new member of this community and I recently obtained a ASUS P6T motherboard and a X5675. I'm currently running into the issue with installing Windows 10 not getting pass the blue logo. I did some investigation and in order for me to boot up from Windows 10 installer, I needed to disable VT-d, but I need that feature as I plan to run Unraid with this motherboard and run Windows 10 VM. Any recommendation on how I should proceed?

Spec:

Mobo: ASUS P6T
CPU: X5675
RAM: 3x8GB Kingston HyperX
BIOS Ver: 1408 + spectre/meltdown patch
Can you disable it, install and re-enable?
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post #442 of 446 (permalink) Old 07-14-2019, 12:27 PM
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Quote: Originally Posted by jamesy829 View Post
Hi everyone, I'm a new member of this community and I recently obtained a ASUS P6T motherboard and a X5675. I'm currently running into the issue with installing Windows 10 not getting pass the blue logo. I did some investigation and in order for me to boot up from Windows 10 installer, I needed to disable VT-d, but I need that feature as I plan to run Unraid with this motherboard and run Windows 10 VM. Any recommendation on how I should proceed?

Spec:

Mobo: ASUS P6T
CPU: X5675
RAM: 3x8GB Kingston HyperX
BIOS Ver: 1408 + spectre/meltdown patch
I did some research on this issue some time ago but haven't found a workaround to get it working (hence only disabling this feature would let you install Windows 10). As far as I remember this was a BIOS implementation issue hence only ASUS could fix it. But it could also be a hardware issue, I remember some dmesg-entries in Linux while installing a distribution with VT-d enabled.
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post #443 of 446 (permalink) Old 08-12-2019, 03:09 AM
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Quote: Originally Posted by ms178 View Post
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

(Update 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

What's new?
mod153mc2.rom

- 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

Flashing process:
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.

Hey so I just picked up a p6t deluxe v2 to play around with and I see that you have mod156.rom and p6tdeluxev2_mod_2.rom, what are their differences? Which one should I flash to?
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post #444 of 446 (permalink) Old 08-12-2019, 06:29 AM
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Quote: Originally Posted by yeerk21 View Post
Hey so I just picked up a p6t deluxe v2 to play around with and I see that you have mod156.rom and p6tdeluxev2_mod_2.rom, what are their differences? Which one should I flash to?
Greetings! Sorry for the confusing naming scheme. The first one is P6X58D-E BIOS with an Intel option ROM from the 15.X family. The p6tdeluxev2_mod_2.rom has newer microcodes and OROMs, but is otherwise the standard P6T Deluxe V2 BIOS.

Which one should you flash to? It depends a bit on your preferences and your CPU, I personally was using the P6TWS4.rom for the last year. The P6X58D-E BIOS has some disadvantages of which the always locked in turbo multiplier was the biggest problem and caused instabilities for me. If you have one of the lower speced Xeons with a turbo multiplier below 20, this shouldn't be a problem. But for the X5650 and above, I'd recommend the P6TWS BIOS. Even though it only supports older Intel OROMs, I worked around my issues with it (adding a SSD as boot drive). It also supports unbufferd ECC, and if you've got a mouse with LED, it supports ErP energy savings that turns the USB slots off if your PC is shutdown.
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post #445 of 446 (permalink) Old 08-12-2019, 05:40 PM
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Thanks for the super fast response. I'm planning to overclock an x5670 to the wall so P6TWS4 > mod156 I'd assume
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post #446 of 446 (permalink) Old 08-12-2019, 11:15 PM
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Quote: Originally Posted by yeerk21 View Post
Thanks for the super fast response. I'm planning to overclock an x5670 to the wall so P6TWS4 > mod156 I'd assume
Yes, I'd go with the P6TWS4 BIOS then. Good luck!
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