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Level 10

Level 14
You have 2 bios chips on the board. You can switch betweeen them if things don't work out.
MZ790A Bios 1601, TG FF4D532G8000HC38DDC01, 13900KS, EKWB D5 TBE 300, Corsair 1600i, Asus Strix 4090 w/ Optimus block, Phanteks Enthoo Elite, Asus Claymore 2, Asus Gladius 3, Asus XG349C, Samsung 990, Windows 11 Pro

Level 12
Jack, I also had oc'ing issues with any bios above 0804 on my M6F.
Like the saying goes: if it ain't broke, don't fix it.
Another thing, there's little or no performance gain by oc'ing the CPU cache.
And oc'ing the CPU cache can have a major impact on CPU stability.
Intel i9 10850K@ 5.3GHz
ASUS ROG Strix Z490-E
Corsair H115i Pro XT
G.Skill TridentZ@ 3600MHz CL14 2x16GB
EVGA RTX 3090 Ti FWT3 Ultra
OS: WD Black SN850 1TB NVMe M.2
Storage: WD Blue SN550 2TB NVMe M.2
EVGA SuperNova 1200 P2
ASUS ROG Strix Helios GX601

Level 10
1. Well it wasn't broke and I didn't wanna fix it until Asus refused to offer TS unless I upgraded

2. I have found the opposite on the cache..... JJ notes in his OC video that ya start to see performance degradations with the cache more than 3 below CPU multiplier. MSI's OC guru says 1 below..... my own tests with RoG Bench show no performance difference at 46 CPU multiplier with either 43, 44, 45 or 46 cache ratio.....however when I go to 42, the image editing benchmark takes a dive.....exactly what JJ had indicated.

OTOH, I had no problems at 4.0, 4.2, 4.4. 4.5 and 4.6 OC's going with identical CPU and cache multipliers...well with 0804. No increase in temps, no increase in voltages req'd for stability.

The 1102 BIOS is whacked in that it not only introduced stability issues but contrary to expectations increased voltages by huge margins while getting more unstable.

It's almost as if Asus has dropped an "information blackout" on all their staff, both paid and volunteer, as I have been asking about this since i 1st did as instructed by TS right after XMas and every thread that the subject has been brought up has been dead other than other users reporting same problem.
October 26 Build
MoBo:Max VI Formula
RAM:16GB Mushkin DDR3-2400 10-12-12-28
GFX:2x Asus GTX780 DCII
HD: 2x Seagate 2TB Hybrid SSHD
SSD:2x Samsung 840 Pro 256GB
PSU:Seasonic X-1250
Case:Phanteks Enthoo Primo
OS:Win 7 Pro-64
Monitor:Asus VG248QE Black 23" 144 Hz
Optical:Asus BR Burner
KB: Logitech G19s
Mouse:RoG GX950
Fan Con.: Six Eyes
Cooling:420+280 Alphacool Rads, 35x2 Pump, EK CPU/ GPU Blocks, Acrylic Tubes w/ BP Fit