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12-23-2020 03:23 PM #1ROG Enthusiast Array
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Crosshair VIII Impact, can't downgrade bios.
My mistake, he has the ROG Strix X570-I Gaming.
A friend of mine recently built a system based around this motherboard, he upgraded the bios to v3003 and his system is now completely unstable, whea errors, nvme corruption etc
He wants to downgrade the bios but there is no flashback on this board, he has tried previous bioes using ezflash but nothing works, just get a message that it's not a proper bios etc.
flash drive is fat32, mbr, bios is correctly named.
Any idea how he can downgrade on this board as the latest bios has made his system unusable.Last edited by JohnEJohn; 12-26-2020 at 08:36 PM.
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12-23-2020 03:53 PM #2ROG Guru: Grand Master Array Arne Saknussemm PC Specs
Arne Saknussemm PC Specs Laptop (Model) Laptop?...No way! (Model?...Jun Amaki...yes way!) Motherboard ROG ZENITH II EXTREME Processor THREADRIPPER 3960X Memory (part number) TXBD48G4000HC18FBK Graphics Card #1 GTX Titan X Graphics Card #2 SLI is dead to me Graphics Card #3 Tri SLI is even dead to Nvidia Graphics Card #4 Quad SLI is dead to everybody especially my credit card Sound Card Xonar Essence STX Monitor ASUS ROG Swift PG279Q Storage #1 Samsung 970/960/950 PRO Storage #2 2x OCZ VERTEX 3/2x WD Caviar Black 500GB / 2x WD RED 2TB/Samsung 1TBSSDs CPU Cooler Custom Loop: Dual D5s, Dual Alphacool Monsta 480s, XSPC Raystorm Neo TR4, EK TitanX WaterBlock Case Nope!...Dimastech Easy XL...let it all hang out man! Power Supply Seasonic 1000 Platinum Keyboard Corsair Strafe MK2 ROG Claymore... or Fender Rhodes Electric Piano (MKI 73) Mouse Corsair M65Pro or Speedy Gonzalez...not Mickey...don't do Disney! Headset ...firmly on neck Mouse Pad Mouse don't got his own pad man...lives with me Headset/Speakers Edifier Spinnaker...or you mean the speakers in my head...man too many voices to name them all OS Win XP, 7, 8, 8.1 and Windows 10 Spyware Edition Network Router 56k modem Accessory #1 Umm...nice tie? Accessory #2 Err...belt? Accessory #3 3 accessories?! I'm not a girl!! 
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There is in fact USB BIOS flashback...so just use that
Originally Posted by JohnEJohn
Maybe reflash latest BIOS with this method since it works fine on all impacts I've tried....
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12-23-2020 04:04 PM #3ROG Enthusiast Array
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My mistake, he has the ROG Strix X570-I Gaming. Originally Posted by Arne Saknussemm
Is there a way to downgrade without flashback?Last edited by JohnEJohn; 12-23-2020 at 04:24 PM.
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12-24-2020 03:37 AM #4ROG Guru: Brown Belt Array RedSector73 PC Specs
RedSector73 PC Specs Laptop (Model) FA506IU-AL130T x 2 Motherboard ROG CROSSHAIR VIII HERO (WI-FI) Processor AMD Ryzen 9 3900X 12-Core Processor Memory (part number) 4 x G.SKILL F4-3800C14D-16GTZN 14-16-16-36 Samsung B-Die Graphics Card #1 Gigabyte Aorus RTX 2080 Ti Xtreme WaterForce (GV-N208TAORUSX W-11GC) Sound Card Arctis DAC Monitor Asus ROG Swift PG348Q Storage #1 ADATA SX8200PNP 1TB Storage #2 2 x Samsung SSD 840 EVO 250GB CPU Cooler Coolermaster Liquid Pro Master 360 Case EVGA DG-87 Gunmetal Grey Gaming Case Power Supply EVGA SuperNOVA G2 750W Gold Power Keyboard Corsair K95 RGB Platinum Mouse Corsair Gaming Sabre RGB Gaming Mouse Headset ARCTIS Pro Wireless Mouse Pad Cooler Master MP750 RGB Cloth Gaming Mouse Pad Extra Large OS Windows 11 64bit Pro Network Router PfSence Intel i5-10210U 6 Port Accessory #1 TP-Link Gigabit 8&6 Port Switches
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All ROG boards have flashback and this is only way to downgrade BIOS.
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12-24-2020 12:34 PM #5ROG Guru: Grand Master Array Arne Saknussemm PC Specs
Arne Saknussemm PC Specs Laptop (Model) Laptop?...No way! (Model?...Jun Amaki...yes way!) Motherboard ROG ZENITH II EXTREME Processor THREADRIPPER 3960X Memory (part number) TXBD48G4000HC18FBK Graphics Card #1 GTX Titan X Graphics Card #2 SLI is dead to me Graphics Card #3 Tri SLI is even dead to Nvidia Graphics Card #4 Quad SLI is dead to everybody especially my credit card Sound Card Xonar Essence STX Monitor ASUS ROG Swift PG279Q Storage #1 Samsung 970/960/950 PRO Storage #2 2x OCZ VERTEX 3/2x WD Caviar Black 500GB / 2x WD RED 2TB/Samsung 1TBSSDs CPU Cooler Custom Loop: Dual D5s, Dual Alphacool Monsta 480s, XSPC Raystorm Neo TR4, EK TitanX WaterBlock Case Nope!...Dimastech Easy XL...let it all hang out man! Power Supply Seasonic 1000 Platinum Keyboard Corsair Strafe MK2 ROG Claymore... or Fender Rhodes Electric Piano (MKI 73) Mouse Corsair M65Pro or Speedy Gonzalez...not Mickey...don't do Disney! Headset ...firmly on neck Mouse Pad Mouse don't got his own pad man...lives with me Headset/Speakers Edifier Spinnaker...or you mean the speakers in my head...man too many voices to name them all OS Win XP, 7, 8, 8.1 and Windows 10 Spyware Edition Network Router 56k modem Accessory #1 Umm...nice tie? Accessory #2 Err...belt? Accessory #3 3 accessories?! I'm not a girl!!
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Maybe download a fresh file of latest BIOS and reflash that
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12-24-2020 04:24 PM #6ROG Enthusiast Array
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Sadly any fresh bios he tries just comes up as incompatible.
Correct me if I'm wrong but there doesn't appear to be a flashback on this board, tthere is no flashback button on the back?
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12-24-2020 06:18 PM #7ROG Enthusiast Array wyliec2 PC Specs
wyliec2 PC Specs Motherboard ROG Crosshair VIII Formula Processor AMD 3950x Memory (part number) G.Skill Trident Z Neo DDR4-3600 (2x16Gb) Graphics Card #1 Gigabyte GTX 1050 Ti Monitor ViewSonic VP2768-4K PRO 27" 4K Storage #1 Corsair MP600 1Tb Gen4 NVMe Storage #2 Samsung SSD 500 GB x 2 CPU Cooler NZXT Kraken X62 280mm AIO Case Corsair Obsidian 450D Power Supply Seasonic Focus 850 Gold Network Router ASUS RT-AC88U (Merlin firmware)
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Looking at the mobo manual for ROG Strix I, it does not appear to have flashback - no button or specified USB port. Originally Posted by JohnEJohn
Are you sure the correct BIOS are being used ?? 3003 is an X570 Crosshair BIOS. Asus.com shows recent Strix BIOS as:
3001 - 12/8/2020
2816 - 11/25/2020 (beta)
2813 - 11/05/2020 (beta)
2802 - 10/23/2020
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12-24-2020 06:53 PM #8ROG Enthusiast Array
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Originally Posted by wyliec2
Yeah he's using the correct bios, even sent me the links and they are correct, the confusion was my fault.
He's tried every previously released bios on several USB sticks formatted in fat32 with an mbr partition, he just gets error messages when trying to flash the bios with ez flash that they aren't compatible etc.
His only hope is a future bios release fixes the issue as it's unusable in its current state.
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12-25-2020 12:28 AM #9ROG Guru: Brown Belt Array RedSector73 PC Specs
RedSector73 PC Specs Laptop (Model) FA506IU-AL130T x 2 Motherboard ROG CROSSHAIR VIII HERO (WI-FI) Processor AMD Ryzen 9 3900X 12-Core Processor Memory (part number) 4 x G.SKILL F4-3800C14D-16GTZN 14-16-16-36 Samsung B-Die Graphics Card #1 Gigabyte Aorus RTX 2080 Ti Xtreme WaterForce (GV-N208TAORUSX W-11GC) Sound Card Arctis DAC Monitor Asus ROG Swift PG348Q Storage #1 ADATA SX8200PNP 1TB Storage #2 2 x Samsung SSD 840 EVO 250GB CPU Cooler Coolermaster Liquid Pro Master 360 Case EVGA DG-87 Gunmetal Grey Gaming Case Power Supply EVGA SuperNOVA G2 750W Gold Power Keyboard Corsair K95 RGB Platinum Mouse Corsair Gaming Sabre RGB Gaming Mouse Headset ARCTIS Pro Wireless Mouse Pad Cooler Master MP750 RGB Cloth Gaming Mouse Pad Extra Large OS Windows 11 64bit Pro Network Router PfSence Intel i5-10210U 6 Port Accessory #1 TP-Link Gigabit 8&6 Port Switches
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https://rog.asus.com/motherboards/ro...model/gallery/ Originally Posted by JohnEJohn
I see BIOS flashback button, right next CLR BIOS button.
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12-25-2020 03:44 AM #10ROG Member Array
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1 - Don't upgrade to Zen 3 BIOS unless you have a Zen 3 chip, otherwise it's just unnecessary risk.
2 - Don't upgrade to Zen 3 BIOS unless you have seen from community feedback that it works well, or make sure that you have USB Flashback to revert back.
3 - If you don't know whether your board has USB Flashback or not, or you are unsure how to use it, you probably shouldn't be doing BIOS updates in the first place. Take it to a shop and have them do it for you. If there is a mistake, it's on them.. not you.
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