Memory Stability (CMD16GX4M2B32000C16)

Loxa · 12 Mar 2018 at 11:01

Hi, just wondering if anyone can help me with getting my memory stable at 3200Mhz i am not having much luck with the XMP profile, it will remain running for 24hours or more but then programs etc will start to not respond and sometimes result in a blue screen.

Corsair Dominator Platinum 2x8GB - CMD16GX4M2B32000C16

Main Timing Configuration/Sub Timing Configuration:
https://gyazo.com/9846e0d3a28538fe741bdf0550d9166f

Turn Around Timing Configuration:
https://gyazo.com/8dcacb510132bb851213fee5561012a0

Advanced Timing Configuration:
https://gyazo.com/5e0b97a5b02b17de6812b4aaca020476

Latency Timing Configuration tRTL/tIOL:
https://gyazo.com/d58d2535005fab6a8a15d7e826dddcfd

Randomface74 · 12 Mar 2018 at 11:24

Try setting the values yourself rather than using xmp.

Loxa · 12 Mar 2018 at 11:28

billysielu said:
Try setting the values yourself rather than using xmp.

I wouldn't even know were to begin on settings the values myself, never had memory that did not work with the XMP profile.

Randomface74 · 12 Mar 2018 at 15:26

They're usually on a stick on the side of the sticks, or on the box, or on the product page of the manufacturer website.

https://www.corsair.com/uk/en/Categ...M-3200MHz-C16-Memory-Kit/p/CMD16GX4M2B3200C16

Frequency: 3200
Voltage: 1.35
Timings: 16 18 18 36

Put them in the BIOS.

Admiral Huddy · 12 Mar 2018 at 15:32

XMP are tried and tested to run at these speeds.

I would try one stick at a time to see if one isn't behaving properly. If this is the case, you may have an RMA claim.

Also check the motherboards website for any known issues with that RAM in XMP.. There may be a BIOS update that fixes this.

edit

https://www.msi.com/Motherboard/support/Z170A-GAMING-M7.html

7976v1J - Improved memory compatibility problems - 19/12/17
7976v1I -Improved memory compatibility problems - 08/05/17

in fact looking down the list, there's quite a few..

I would update the BIOS before doing anything.

Loxa · 12 Mar 2018 at 15:42

billysielu said:
They're usually on a stick on the side of the sticks, or on the box, or on the product page of the manufacturer website.

https://www.corsair.com/uk/en/Categories/Products/Memory/DOMINATOR®-PLATINUM-16GB-(2-x-8GB)-DDR4-DRAM-3200MHz-C16-Memory-Kit/p/CMD16GX4M2B3200C16

Frequency: 3200
Voltage: 1.35
Timings: 16 18 18 36

Put them in the BIOS.

Ahh thanks, i did not realize inserting the same values could make a difference from the XMP profile i will give it a go.

Admiral Huddy said:
XMP are tried and tested to run at these speeds.

I would try one stick at a time to see if one isn't behaving properly. If this is the case, you may have an RMA claim.

Also check the motherboards website for any known issues with that RAM in XMP.. There may be a BIOS update that fixes this.

edit

https://www.msi.com/Motherboard/support/Z170A-GAMING-M7.html

7976v1J - Improved memory compatibility problems - 19/12/17
7976v1I -Improved memory compatibility problems - 08/05/17

in fact looking down the list, there's quite a few..

I would update the BIOS before doing anything.

Thanks for the reply, i always keep my bios updated. I have been running the memory at 2133Mhz for a long time so i never thought about the sticks being faulty.

(I have run Memtest86 a while ago with no errors)

Pocah · 13 Mar 2018 at 11:02

Loxa said:
Ahh thanks, i did not realize inserting the same values could make a difference from the XMP profile i will give it a go.

Thanks for the reply, i always keep my bios updated. I have been running the memory at 2133Mhz for a long time so i never thought about the sticks being faulty.

(I have run Memtest86 a while ago with no errors)

It's doubtful they are faulty. RAM is guaranteed to operate at the speed they are sold at, and they usually do, but the rest of your system is not guaranteed to run at that speed at all. If it is not running it is almost certain that it's the rest of your system that is at fault. In that case you can not use the XMP profile, you have to manually overclock. Manually setting the same settings will achieve nothing. What you need to do is to start with the same settings then change them until the system works. You should first reduce the frequency from 3200 to 3000. If that does not work you can try 2666. Whatever frequency you end up with, all is not lost because you can then experimentally try to reduce the timing. So 16 18 18 36 you can try 15 17 17 34 and keep on reducing it till it no longer works then finally set it to the last working setting. Then you can experimentally reduce the voltage, again until it stops working, then use the last working voltage.
The XMP profile overclocks the rest of your system and it's not guaranteed to work. Overclocking is pretty straight forward but it can be a fiddle.

Loxa · 13 Mar 2018 at 11:05

Pocah said:
It's doubtful they are faulty. RAM is guaranteed to operate at the speed they are sold at, and they usually do, but the rest of your system is not guaranteed to run at that speed at all. If it is not running it is almost certain that it's the rest of your system that is at fault. In that case you can not use the XMP profile, you have to manually overclock. Manually setting the same settings will achieve nothing. What you need to do is to start with the same settings then change them until the system works. You should first reduce the frequency from 3200 to 3000. If that does not work you can try 2666. Whatever frequency you end up with, all is not lost because you can then experimentally try to reduce the timing. So 16 18 18 36 you can try 15 17 17 34 and keep on reducing it till it no longer works then finally set it to the last working setting. Then you can experimentally reduce the voltage, again until it stops working, then use the last working voltage.
The XMP profile overclocks the rest of your system and it's not guaranteed to work. Overclocking is pretty straight forward but it can be a fiddle.

Ok thanks for the information, should i always start the voltage at it's max limit 1.45? while testing different values.

Edit: So far with setting the values myself as 'billysielu' instructed it has remained stable, ill keep this post updated if anything changes. Thanks again for everyone who has posted, been an interesting learning curve.

Frequency: 3200
Voltage: 1.35
Timings: 16 18 18 36

Loxa · 23 Mar 2018 at 21:09

Just received a BSOD (0xA) 10 days after the initial changes stated in my other post, i have raised the VCore to 1.37.