14900ks no post.

[Spork72]

Z690 extreme with 14900ks showing code 00 on LCD and 98 on mobo LED

Upgraded from 12900ks which was working perfectly.

Updated bios to 3302, cleared CMOS.

Put 12900ks back in with same results. 

Maximus z690 extreme 

2x32 Corsair dominator platinum 5600mhz 

Strix 4090 

Dark power pro 13 1300w

[Silent_Scone]

Hi @Spork72,

Have you inspected the CPU socket? Simply swapping CPUs shouldn't result in this behaviour, so that would be the first thing to check. 

Check for any debris or bent pins, and ensure the cooler is being remounted correctly. 

Insert a single memory module in slot A2.

[Spork72]

Have managed to get it to post, removed RAM and installed new stick in each slot. Would only post with one stick in the B2 slot. 

New problem is now it won't boot into Windows, 12900ks will but not with new CPU

[Silent_Scone]

If only posting with one memory module it could still indicate a pin pad issue. Are you still at complete Optimised Defaults? Do not enable XMP or change any parameters. 

Clear the CMOS. Does the system POST and boot with a single memory module in A2?

[Spork72]

I have checked the pins multiple times, they all look fine. After booting into Bios on 1 stick (was B1 slot) my bad, I swapped back to A2 B2 slots with 2 sticks and only post into bios showing inaccessible boot device when trying to load OS.

Have just put 1 stick back into B1 slot to see how that goes 

[chappetiti]

Good morning,
I have the same problem since installing the 14900 ks and the bios 3302, before with my 13900 ks no problem, now with the 14900k s the xmp only works on Xmp 2 and I can't even do any overclocking at all. failed systemically... (Windows Blue Screen ect...)
I think you should quickly review the Bios 3302 because it must have bugs...

[Spork72]

I had to remove 1 stick of RAM for it to post into bios, then got BSOD inaccessible boot drive error. I'm ableto run 2 sticks again once it's posted.

Disable VMD controller in bios and that will let it boot into OS, seems to be an issue with 14900 series chips.

[Spork72]

My problem now is sometimes on system start up from off it will throw codes again and won't boot, I have to remove 1 stick of RAM for it to post again without an issue. 

Everything works fine on system restart, only happens randomly on fresh startup

[chappetiti]

This happens to me too, it was random & the overclocking I can forget plus I came across an average sp 102 chip (pcores 113 and ecores 82) while my 13900ks SP110 (Pcores120 and ecores 92) I think I I'm going to go back to the old bios 3101 and resend the 14900ks, too many problems...

[Spork72]

Let me know how it goes on bios 3101.