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ROG Crosshair VIII Hero / Formula / IMPACT / DARK HERO LN2 OC Guide


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Has anyone had any issues with TurboV on Zen3?

Shortly after trying to adjust SOC voltage down by 25mV I got a memory exception error and now my 5950X can't run >1900MHz FCLK without WHEAs, whereas previously I'd never had a single WHEA all the way up to 2067MHz. 

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Posted (edited)
On 2/25/2021 at 12:08 PM, subaruwrc said:

what is the trick to run 5950x + dark hero + w7 64 to have usb working?

tried the above linked methods but board still not recognizes usb ports. same OS works fine on a B550 board ... 

wwKYMc4.png

u jelly :^)?

Seriously though, fuarrrk AMD for making it so goddamn hard to install Win7 on X570 boards.

Installing Windows 7 on my CH7 is piss easy (PS/2 keyboard, integrate AMD's official X470 drivers with Integrate7 and off you go) but on my C8DH it took me forever until I finally got it to work.

There's also this rather in-depth video by some Ruskie dude:

 

Edited by 4n0nym0u5b3nch3r
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On 11/19/2020 at 1:06 PM, rbuass said:

Terrible 0d post, even in stock, no matter to follow or no the excellent guide (very helpful). 

Tested several kits of RAM, 2 X 5950X and 1 X 5900X, and I can't even touch the memory timings. 

0d, 0d, 0d, etc. 

Temperatures, FCLK, SOC, etc, no matter the changes, not helps. 

3 BIOS different tested and nothing 😔

 

That's a pity!!! 

Flashed to 3601 and same problem now, Can't touch memory timings at all or 0d
Stays 0d retry, safe boot, reset, power down and Start again
Must clear cmos to get back into bios. Same with 5600x and 5700x
Tried SR and DR B die kits from G.Skill and OLOy.
Could it be because I used EZ Flash in bios to flash from 3202? to 3601 ?
Never know best way to flash with these modern ASUS platforms, recently it's been a coinflip at best the gamble is real.
Sure I have ways to flash back or flash another bios but this is getting old fast and it's not just AMD platform
Intel has been just as bad, mostly Z490 but 390 and 590 have their issues as well

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@noizemaker Are there any known beta bios for the Crosshair VIII Impact that were made between 2702 and 3003? Before the 1.1.8.0 AGESA update, to support Cezanne CPUs, but still after ReSize BAR and AMD SAM was implemented. Maybe a later 27XX bios, more likely 28XX or 29XX.

Edit: I see 3001 now. What AGESA does it use?

Edited by Sparky's__Adventure
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8 hours ago, Sparky's__Adventure said:

@noizemaker Are there any known beta bios for the Crosshair VIII Impact that were made between 2702 and 3003? Before the 1.1.8.0 AGESA update, to support Cezanne CPUs, but still after ReSize BAR and AMD SAM was implemented. Maybe a later 27XX bios, more likely 28XX or 29XX.

Edit: I see 3001 now. What AGESA does it use?

sorry dont know, 2502, 2701, 2702 and 3003 i have in my arch. but i guess thats not any dev bios between.

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