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Crosshair VI Hero: UEFI build update thread

Level 13
Directly from Elmor:

Beta BIOS 3008 for C6H/C6HWIFI/C6E:

AGESA, temperature offset fixed after S3 resume, GPU Post function fixed, 0d with some GPUs fixed

C6H Test BIOS 0020 with AGESA 1007 (405200c4e299c1eed9a0044edec9aba51f37cee1d70caabe40b9485b0604521a)

In order to get back to an older version after flashing, you have to use USB BIOS Flashback.

Let me know how it works for you, especially regarding cold boot issues. Any confirmed bugs in the bug report form please

Beta BIOS 1501

* Workaround for some CPUs stuck at 22x ratio if using override voltage
* Fixes PCIEX4 bandwidth setting getting lost after power is removed
* Same DRAM boot behavior as 1403 (no cold boot fix)
* Same DRAM profiles as in 9920
* Still has the Vcore value issue when booting with Offset Mode and switching to Manual Mode

Crosshair VI Hero 1501 SHA256 EDE223DC6897B7199C93D9985E28B7A2CD1B8A8DB2DCBF3D3555A521DB4F045D
Crosshair VI Hero Wifi AC 1501 SHA256 0D9F51F43AA3A56A4AC984B11A52F58451B76F8A7CCB9A04E1C3194231C9D4DA

UEFI build 9920 for the C6H:

* Improved DRAM cold boot, results in slightly longer POST time
* Fix for CPU Ratio stuck at 22x on some CPUs when using Vcore override/offset
* SenseMi Skew is now Disabled by default. If you want to return to previous behavior set SenseMi Skew = Enabled and Offset = 272.
* Added DRAM profiles for Samsung B-based DIMMs with tuned subtimings, including The Stilt's settings

C6H beta UEFI 1403

* Fixed W_PUMP and AIO_PUMP speeds during POST
* Fixed Fan tuning sometimes failing
* Fixed a few issues with AMD USB3.1 ports
* Some tuning on DRAM settings, let us know how they work for you. tRDRD_Sc is still at 5 above 3500 MHz as it helps with stability. For performance you want to force this to 1. We'll consider changing this in future releases as the performance impact can be quite noticeable in certain applications.

An update on DRAM Boot Voltage, currently it should be 1.35V by default if the DRAM Voltage is changed. So if you're setting DRAM Voltage to above 1.35V, you might want to sync this setting. Additionally there might be scenarios where you will have better luck by syncing DRAM Boot Voltage to DRAM Voltage even at lower values.

AGESA 1006 RC4 official UEFI 1401

Just tested quickly 3600 memory and cold booting, seems good but you guys are going to have to help me test this before we have a judgement. Seems CPU temp reading from SIO now has -20*C offset for XFR enabled CPUs.

UEFI build 1107

Older test builds:

Test BIOS 0079

Test BIOS with new AGESA 1004a, with a couple of bugfixes. Up to 5% performance increases in specific applications. Also has P-state overclocking working with BCLK increase. If you want to keep C-states, make sure to set Advanced\AMD CBS\Zen Common Options\Global C-state Control = Enabled. There are two new settings under AMD CBS\UMC Common Options\DDR4 Common Options\ you might want to take a look at, Fail_CNT and ProcODT. Fail_CNT decides how many times to retry when DRAM training fails (F9 -> 0d), default is now 1. ProcODT can help improve your DRAM overclocking. There's a setting available also on previous BIOSes under AMD CBS\UMC Common Options\DRAM Memory Mapping named BankGroupSwap. If you have 2x Single-Rank modules you can try setting this to Disabled and you might see some performance boost in certain applications.

Test BIOS 0081

Same as 0079 but has ProcODT default = 53.3 ohm

Test BIOS 0082

Same as 0081 but with a DRAM compability patch for the below part numbers



Test BIOS 0083

Same as 0081 but with "2T" DRAM Mode when using above 2666 DRAM Ratio.
2,794 REPLIES 2,794

rsquires wrote:
Any word on a new bios, or will they wait for the new cpus?

beta bios 0001

RobrPatty wrote:
beta bios 0001

Is there a list of changes and known issues to go along with it?

I've posted them on previous page...

BlackBishop wrote:
I've posted them on previous page...

Thanks! I am a bit behind on this thread. It is good to see they are still working away on improving this board.

Level 9
Haven't tested the latest bios yet, but i dont think it includes the recently released amd microcode that addresses spectre.

Anyways, I just need to say that the naming convention for bios's for this company is stupid. Seriously, the beta bios is 0001? Why?

> numbers should reflect newer bios's. It's intuitive, logical, and easy to implement. Stop huffing markers Asus and implement some sane versioning.

C6H Beta BIOS 6002

SHA256 479faf20b50a35e4eac96ebde4e8d96262abbd612800881b4f 5e06865f7c9589

Elmor said
Change log is huge and I'm not sure what's different compared to 0001. It has at least the same upgrades as 0001, probably the same down sides as well.

BlackBishop wrote:
C6H Beta BIOS 6002

SHA256 479faf20b50a35e4eac96ebde4e8d96262abbd612800881b4f 5e06865f7c9589

Elmor said

I'm guessing the 0001 was pre-beta where the 6002 is basically the beta version of 0001?

Yep. 0001 was test BIOS (lets call it alpha) and 6002 is beta. But it may have additional changes.

Here are all 3 versions:

C6H Beta BIOS 6002
SHA256 479faf20b50a35e4eac96ebde4e8d96262abbd612800881b4f 5e06865f7c9589

C6H WIFI Beta BIOS 6002
SHA256 d076ab223253a2198a965fa3381c7b5aa2007554e751e67135 79ac0c38c1698a

C6E Beta BIOS 6002
SHA256 db88834cbd729c64b781971d4b2aa9644d7d4ab3c550b092c9 2af1b750ac25ce

Level 8
While being at stock CPU clock:
CPU Auto Voltage: 1.4v to 1.45v
CPU Offset Voltage (-0.0625): 1.133v to 1.155v
SoC Auto Voltage: 1.063v
SoC Offset Voltage (-0.025): 1.090v
SoC Offset Voltage (-0.075): 1.024v to 1.046v

Auto Voltages on this build are super-weird (and hot).

BTW, they managed to get their USB single port controls defaulting to "Enabled"! well done! 😄

I didn't try to OC again, just lost much time by doing so. and 2800MHz on my RAM seems fair, just restored it's previous config.
Assuming it will be stable (at the lowest voltages mentioned ofc), I'm going to post again if not (:

note/edit: this is about trying 6002 😛
Having an ASUS board?
Increasing the Capabilities in your Digi+ VRM can prevent your hardware from being shut off (relaxes over-current condition).
Do it if you DID NOT set bad settings but didn't get it stable. (i.e. your hardware is for overclocking, high destiny, whatever).

Level 7
Good luck with 6002
Thanks for testing!
I'm nosy if its working more accurate than 3502, 6001 and any other Bios^^

I'm tired of testing and switching Bios files for now