Turning on XMP freezes Windows within 5 seconds

King Mustard · 8 Mar 2018 at 20:22

I have just bought an Intel i7-8700K CPU and a Gigabyte Z370XP SLI motherboard for it to go in.

I kept the Corsair Vengeance LPX 16GB (2x 8GB) 3000 MHz RAM from my old setup.

When I enable XMP, to get it up to the 3000 MHz, Windows locks up 5 seconds after showing the desktop.

XMP worked fine in my previous MSI Z170A Gaming Pro Carbon motherboard with this RAM for the past several years, so it's not faulty RAM.

The UEFI is up-to-date and I'm using all other default UEFI settings (CPU set to Auto etc.)

Any ideas?

orbitalwalsh · 9 Mar 2018 at 13:18

system loads fine at default values (2133hz i believe) ?

You know the exact model number/product code ? can check QVL list
Kit like that should be on the list to be fair

King Mustard · 9 Mar 2018 at 13:25

orbitalwalsh said:
system loads fine at default values (2133hz i believe) ?

You know the exact model number/product code ? can check QVL list
Kit like that should be on the list to be fair

CMK16GX4M2B3000C15

They run fine at 2133 MHz (and at 3000 MHz on my previous MSI Z170 board).

orbitalwalsh · 9 Mar 2018 at 13:42

King Mustard said:
CMK16GX4M2B3000C15

They run fine at 2133 MHz (and at 3000 MHz on my previous MSI Z170 board).

CMK16GX4M2B3000C15 ver4.23 is down on support list
Guessing as well your using 2nd (DDR4_2) and end 4th (DDR_1) slot ?

When you enable xmp, save exit and go back into BIOS straight away, has the correct timings and voltage been applied ? ( learnt on any board once i've entered and saved and bios setting to exit and go back into bios straight away as sometime timings or values differ )

if not, might be a case of manually entering in the 4 latency settings, speed and voltage setting which is a bit of a pain- but least its a way to finding if ram is fully working on the board

King Mustard · 9 Mar 2018 at 13:50

orbitalwalsh said:
CMK16GX4M2B3000C15 ver4.23 is down on support list
Guessing as well your using 2nd (DDR4_2) and end 4th (DDR_1) slot ?

When you enable xmp, save exit and go back into BIOS straight away, has the correct timings and voltage been applied ? ( learnt on any board once i've entered and saved and bios setting to exit and go back into bios straight away as sometime timings or values differ )

if not, might be a case of manually entering in the 4 latency settings, speed and voltage setting which is a bit of a pain- but least its a way to finding if ram is fully working on the board

I'll check the second and third paragraphs when I'm home.

Regarding the slots, they're in DDR4_4 and DDR4_2, as per the manual.

orbitalwalsh · 9 Mar 2018 at 13:59

King Mustard said:
I'll check the second and third paragraphs when I'm home.

Regarding the slots, they're in DDR4_4 and DDR4_2, as per the manual.

its DDR4_2 AND DDR4_1 with Gigabyte - MSI and asus have their numbers different
In your case- the light grey slots, mine the red slots

have the same board - just different colour and features- pathways are the same - so it goes from left to right- BLANK- POPULATED- BLANK- POPULATED

quite a lot of gigabyte in that one shot

King Mustard · 9 Mar 2018 at 17:12

I moved the RAM to DDR4_1 and DDR4_2. This time, I get a BSOD after being in Windows for 5 seconds (system_service_exception), instead of a total freeze.

With XMP still enabled, I changed 'Enhanced Multi-Core Performance' from Auto to Disabled.

Still a BSOD after being in Windows for 5 seconds.

So I've re-enabled 'Enhanced Multi-Core Performance' and disabled XMP, Windows is fine again.

The timings seem to be correct according to the bottom of here:

King Mustard · 9 Mar 2018 at 19:31

I updated to the "F6" UEFI update that came out two days ago.

It appears to have solved my issue! *touch wood*

orbitalwalsh · 9 Mar 2018 at 19:44

Run real bench, 8GB stress test, good 30 mins with 8GB amount , should see if ram is stable for you .