[SOLVED] 9900k with XMP not working

[culzone]

Hi! I got my new 9900k today upgraded from an 8700k.
Im using a z390 phantom gaming 6 from asrock which has support for the ram im using.
im using G.skill 16gb (2x8) DDR4 4266mhz CL19 Trident Z / 1.4v
It worked perfectly on my 8700k which was also clocked at 5ghz 1.35v
when i installed the 9900k without any OC, just the XMP. no bueno.
can't even boot into windows without going below 3200mhz.
Using a full custom loop with 600mm worth of rads if it makes any difference.
Any suggestions to this? Is it a bad memory controller on this ship? unloko?
Please don't comment about if it's worth or not performance wise, I don't care.
I want the speed I payed for or atleast close to it.

 

[bmockeg]

Hi! I got my new 9900k today upgraded from an 8700k.
Im using a z390 phantom gaming 6 from asrock which has support for the ram im using.
im using G.skill 16gb (2x8) DDR4 4266mhz CL19 Trident Z / 1.4v
It worked perfectly on my 8700k which was also clocked at 5ghz 1.35v
when i installed the 9900k without any OC, just the XMP. no bueno.
can't even boot into windows without going below 3200mhz.
Using a full custom loop with 600mm worth of rads if it makes any difference.
Any suggestions to this? Is it a bad memory controller on this ship? unloko?
Please don't comment about if it's worth or not performance wise, I don't care.
I want the speed I payed for or atleast close to it.

Tried disabling XMP and setting manual speed and timings? Increase voltage to 1.45? Tried looser timing 20-20-20-40?

 

[culzone]

Tried disabling XMP and setting manual speed and timings? Increase voltage to 1.45? Tried looser timing 20-20-20-40?

I will try that, will come back with results

 

[culzone]

Tried disabling XMP and setting manual speed and timings? Increase voltage to 1.45? Tried looser timing 20-20-20-40?

for some reason when upgrading cpu my bios version had reset to first version, having this now upgraded I can run the XMP but only at 3600mhz, however an improvement

 

[bmockeg]

for some reason when upgrading cpu my bios version had reset to first version, having this now upgraded I can run the XMP but only at 3600mhz, however an improvement

You’re running 4.3?

 

[culzone]

You’re running 4.3?

yep

 

[bmockeg]

yep

Tried manually adjusting timings?

 

[culzone]

Tried manually adjusting timings?

no clue how or why. but manually timings booted in windows at 4266mhz

 

[bmockeg]

no clue how or why. but manually timings booted in windows at 4266mhz

There we go, probably an issue with the XMP profile. One number could be off by 1 and it’s a no boot. Glad you got it brother.

 

[culzone]

There we go, probably an issue with the XMP profile. One number could be off by 1 and it’s a no boot. Glad you got it brother.

I got new problems now... I crash at 4.7ghz even when doing 1.35 vcore, unlucky? or...
tried LLC level 1 (least vcore drops) and power limit on max, crashes after 5-10min
However the ram is working nice, did a memtest86 for 1 hour without any errors.

 

[bmockeg]

I got new problems now... I crash at 4.7ghz even when doing 1.35 vcore, unlucky? or...
tried LLC level 1 (least vcore drops) and power limit on max, crashes after 5-10min
However the ram is working nice, did a memtest86 for 1 hour without any errors.

Lots of settings you have to change for overclocking. There are some good videos on YouTube about doing it on a 9900k