[aaron.e.bennett]

Motherboard: Asus Prime z790-a wifi (not my first choice but it was available)
CPU: i7 13700k
Ram: Corsair Vengeance 2x32Gb 5200mhz 40CL
Storage: Samsung 980 Pro 1 Tb / 2tb D:
Graphics: Gigabyte 3070ti Aorus elite
windows11 pro 22h2

is this normal? I can't get the ram to run full speed with this motherboard without crashing BSOD Memory issues. 5000mhz is all I can set in Bios / stable.

Temps and HWiNFO64 data while running cinbench:

 

[aaron.e.bennett]

BIOS version? I ran 7000MT/s on that same board.
If not the latest, update to 0802 and try again.

BTW what cooler do you have? 101C is a little alarming for a a 13700K..

Bios says it's the latest with 0602
BIOS Version/Date American Megatrends Inc. 0602, 9/21/2022


Artic II 360 AIO running 1800 RPM


idle temperature is 38/39C

 

[aaron.e.bennett]

Bios says it's the latest with 0602
BIOS Version/Date American Megatrends Inc. 0602, 9/21/2022


Artic II 360 AIO running 1800 RPM


idle temperature is 38/39C

 

[aaron.e.bennett]

Delete

What is delete referring to?

 

[aaron.e.bennett]

Thank you all, it was a bad mount on the backplate: I still can't get the ram to post correctly though. I have not seen an 0802 version on Asus for this motherboard. Where did you get it from?

No more CPU throttling though.

 

[aaron.e.bennett]

Check what mem you got with cpu-z, i'm afraid is not even m-die.

 

[aaron.e.bennett]

 

[aaron.e.bennett]

yep u have micron

Sooo ok?

yep u have micron

corsair used to be the best, but I have been out of the hardware game for a while.

 

[aaron.e.bennett]

Corsair doesn't manufacture memory they bin chips from manufacturers like micron, samsung, hynix etc and sell them as kits.

Unfortunately, micron is the worst for DDR5, it's first gen DDR5 so to be expected.

Thoughts on this one? KF556C40BBK2-64

 

[aaron.e.bennett]

2x32gb might not run fast even though it says qvl.... do you need 64? 2x16 not enough? be able to run much faster speeds 2x16.... i run the corsair veng 2x16 at 6200 on a z690prime-a and been working great for months. likely do 6400. havent tried... need more gpu power first

been on the phone with tech support with asus, and theA channel on the motherboard is having issues and now it won’t post to bios with anything in A channel. B channel with both DIMMS working independently and together in B channel alone without issue.

 

[aaron.e.bennett]

That sucks. New board time.

What is worse is that Asus is out of stock: and they are waiting for more new stock before I can get my RMA

 

[aaron.e.bennett]

Hi All,

Well, the new MOBO works with both A and B channels woot!

All is running great but the XMP profile on the mobo/chips is really unstable. I am no overclocking expert and RAM was never my thing, Does anyone know what timings I should set to get the KF556C40BBK2-64 kit to work with this Asus Prime Z790-a wifi board? Asus support is useless.

I found the timings 40-40-40-80-135 for 5600mhz, but I can't find the tRC setting in the bios.

 

[aaron.e.bennett]

I traded out the micron kit for Kingston fury; they said they were m-die on the sheet but they are actually sk Hynix,

my mobo is the prime series I can't use those yet. I do have the latest already installed though.

 

[aaron.e.bennett]

I traded out the micron kit for Kingston fury; they said they were m-die on the sheet but they are actually sk Hynix,

my mobo is the prime series I can't use those yet. I do have the latest already installed though.

Ok a few days into these settings for XMP1, and I keep getting BSOD and random crashes. Really seems like the ram timings need to be tweaked in the bios. XMP1 is not working to spec. Mem diagnostics says there are errors when running in XMP1 (5600mhz) but not when running default JDEC settings at 4800mhz.

 

[aaron.e.bennett]

SK Hynix is either M die or A die.

Thanks I wish I knew more about ram timings, the stuff is above me. The last time I built my own overclock system was 15 years ago when I was in my college days.

 

[aaron.e.bennett]

Well after a lot of learning and tweaking, here are the finals from CPU-Z. I might still mess with them, but it's running super stable @5500mhz and Kingston 6000mhz ram OC to 6400. Details here: Intel Core i7 13700K @ 5500 MHz - CPU-Z VALIDATOR