Ram not able to run on XMP

Toggle sidebar Toggle sidebar
D

danny.van.dijk21

Prominent
Jan 29, 2018
5
0
510
I recently upgraded my pc to the coffee-lake platfrom.
It does post but after i open to many thing or play a game my pc freezes and then reboots.

My setup:
CPU: i7 8700k
Mobo: asrock z370 extreme 4
Memory: Corsair DDR4 Vengeance LPX 2x8GB 3200
Storage: crusial ssd 120 GB
GPU: msi 1070 gaming x
PSU: coolermaster 750w

Any suggestions on what i van try to do

(Update) my bios version is 1.30 it was 1.40 but some how that version got deleted
 
Solution
Darkbreeze
Windows memory diagnostic is a joke. Run the memtest86 or memtest86+ test utilities like I and Geofelt have both suggested.

It is unusual that a system would fail to POST after bumping the memory voltage by a small increment like .05v. If anything the system should be MORE stable after doing so, although you could potentially then have issues (in theory, not generally in practice unless your voltage is already higher than the recommended profile's configuration) with higher memory temps.

As I said earlier, it is OFTEN necessary to increase/overclock the CPU in order to run high speed modules, especially when multiple modules are in use. The memory controller is in the CPU and running the CPU at higher stable clock speeds often...
Sort by date Sort by votes
Darkbreeze

Darkbreeze

Retired Mod
Jun 24, 2014
80,414
7,632
176,790
Try bumping the memory voltage up by .05v in the bios. Don't forget to save the settings afterwards before exiting the bios. You MIGHT also have to slightly overclock the CPU in order to run those sticks at 3200mhz, but try bumping the memory voltage first.

If bumping the memory voltage by .05v does not stabilize them, I'd suggest running a few passes of Memtest86+ to make sure that it's not just a bad memory module.
 
Upvote 0 Downvote
D

danny.van.dijk21

Prominent
Jan 29, 2018
5
0
510

its only freezing when my ram is using xmp not when its on default 2133mhz
 
Upvote 0 Downvote
ko888

ko888

Titan
Feb 18, 2009
16,708
41
84,990


Sorry. Please ignore. I posted this reply to the wrong thread.
 
Upvote 0 Downvote
D

danny.van.dijk21

Prominent
Jan 29, 2018
5
0
510

I just tried bumping the voltage but then it didnt even boot
 
Upvote 0 Downvote
geofelt

geofelt

Titan
Oct 9, 2006
54,340
4,164
174,240
set your bios to default(no overclocking)
set the ram to a 3200 speed xmp profile.
Run memtest86.
You should be able to complete a full pass with NO errors.
If it shows errors, contact Corsair for an rma.

If the ram checks out, your problem is likely in some sort of overclocking or default setting.
I might wonder what was in the 1.4 bios update.
Often it will include stability or ram fixes.
Check the asrock forums for your motherboard.
Corsair forums might also have something on this.
 
Upvote 0 Downvote
D

danny.van.dijk21

Prominent
Jan 29, 2018
5
0
510


My windows Memory Diagnostic test found a error.
will try later on your software you recomanded
 
Upvote 0 Downvote
Darkbreeze

Darkbreeze

Retired Mod
Jun 24, 2014
80,414
7,632
176,790
Windows memory diagnostic is a joke. Run the memtest86 or memtest86+ test utilities like I and Geofelt have both suggested.

It is unusual that a system would fail to POST after bumping the memory voltage by a small increment like .05v. If anything the system should be MORE stable after doing so, although you could potentially then have issues (in theory, not generally in practice unless your voltage is already higher than the recommended profile's configuration) with higher memory temps.

As I said earlier, it is OFTEN necessary to increase/overclock the CPU in order to run high speed modules, especially when multiple modules are in use. The memory controller is in the CPU and running the CPU at higher stable clock speeds often dictates what the maximum memory speed is that can be utilized.

See here:

http://www.tomshardware.co.uk/ddr3-dram-faq,review-33220.html#p1


Also, make sure you have NOT installed the bios version that patches the Spectre and Meltdown side channel attack issues. If you have, flash back to the version prior to that version. All of the microcode firmware versions released by Intel initially for that purpose have been found to cause instabilities and have been redacted by Intel. Board partners have been instructed to remove those versions from available downloads but whether or not there are even newer ones I don't know for that or any given board. In lieu of that, I'd revert to whatever version was available prior to those versions. I would do that before anything else.
 
Upvote 0 Downvote
Solution
D

danny.van.dijk21

Prominent
Jan 29, 2018
5
0
510
Small update I have ran Memtest86 and there where no errors.
also i tryed my ram in a pc off a friend of mine and he was able to run it with XMP

So for now I just have to wait for a new bios update

Thx for the help

Iff you guys know more options to try i am still open for them
 
Upvote 0 Downvote
Darkbreeze

Darkbreeze

Retired Mod
Jun 24, 2014
80,414
7,632
176,790
Make sure you are populating the memory slots correctly according to the manual. Often, it matters that you put them in the correct slots as outlined in the manual population rules.

You may want to double check that your CPU cooler is mounted evenly all the way around. If one corner is not fully seated, or if the cooler is overly tight, it can cause memory issues as some of the CPU pins may not be sitting exactly where they need to be and since the memory controller is in the CPU, that can cause issues.

I will also stress again that some CPU/motherboard/memory combinations REQUIRE that the CPU be overclocked in order to achieve the advertised XMP memory speed for that module. Usually this is only a small overclock that is necessary, but we see a lot of systems that simply cannot run the memory at the advertised speed without doing this. Even when it works perfectly fine on another identical system without doing so.

I would suggest that you thoroughly read the DRAM article I linked to.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom