Question Crashing and instability when XMP profile is applied to new RAM sticks ?

[Anti illuminati]

hello. i had 8*2 ocpc ram (ddr4 3200 cl16). about two month ago i decided to add two more new ram of the same brand and same specs. i installed old rams in a2 b2 and new rams on a1 and 2 slot. and enabled xmp profile in bios ( msi z590 gaming edge wifi) . but in windows sometimes i get green death screen ( windows insider program problem ) and crashing in games after 2 or 3 minutes of gameplay. at first i thought that the new rams are incompatible with the previous one Although the same brand and same specs. and that is the cause of crash and instability. but when i tested the rams separately, the old 2 rams were fine when xmp on no matter which slots. but the two new ram were problematic on xmp with or without the old rams installed. so the problem is with the new rams. how can i test them and be sure of that?

 

[GiovanniVincent]

Examine the motherboard's DIMM slots for any dust or debris that could affect the connection. Gently clean if needed.

 

[geofelt]

Ram is sold in kits for a reason.
A motherboard must manage all the ram using the same specs of voltage, cas and speed.
The internal workings are designed for the capacity of the kit.
Ram from the same vendor and part number can be made up of differing manufacturing components over time.
Some motherboards, can be very sensitive to this.
This is more difficult when more sticks are involved.
Ram must be matched for proper operation.

You can sometimes compensate for errors by increasing the ram voltage in the motherboard bios if you have a motherboard that permits such settings.

 

[Bob.B]

hello. i had 8*2 ocpc ram (ddr4 3200 cl16). about two month ago i decided to add two more new ram of the same brand and same specs. i installed old rams in a2 b2 and new rams on a1 and 2 slot. and enabled xmp profile in bios ( msi z590 gaming edge wifi) . but in windows sometimes i get green death screen ( windows insider program problem ) and crashing in games after 2 or 3 minutes of gameplay. at first i thought that the new rams are incompatible with the previous one Although the same brand and same specs. and that is the cause of crash and instability. but when i tested the rams separately, the old 2 rams were fine when xmp on no matter which slots. but the two new ram were problematic on xmp with or without the old rams installed. so the problem is with the new rams. how can i test them and be sure of that?

Put memtest86 on a flash stick boot the stick and use the app to test each stick one at a time.

 

[Misgar]

4 DIMMs are often more difficult to overclock than 2 DIMMs, even when you buy all 4 DIMMs at the same time in a single kit of 4 (not two kits of 2 DIMMs).

The extra loading on the integrated memory controller bus makes fast XMP overclocks less stable, especially at the maximum rated XMP setting for the RAM. So saying, I've got 4 Kingston 3,000MT/s DIMMs running stably on a 3800X.

To sorty out your problem, switch off XMP and revert to the JEDEC standard speed ()probably 2133 or 2400MT/s and 1.20V). Boot from USB Memtest86+ and run a complete scan. Typically 1 hour.

If the system is stable, slowly increase the XMP speed, e.g. 2600, 2800, 2933, 3000MT/s. At each speed setting, boot from USB and run at least one complete MemTest86+ scan.

Any errors in MemTest86+ and you need to change something. A simple tweak is to increase CL (CAS) manually by one of two clock cycles. If CL is set to16, try 17 or 18.

Invoking XMP will typically increase the RAM voltage to 1.35V. If you want to improve XMP stability (and reduce the life expectancy of your CPU and RAM) increase the RAM voltage still further to 1.40V or 1.45V. Extra voltage places more stress on your CPU and RAM and can lead to eventual electro-migration damage. You may not notice any degradation for several years.

If you want your system to work for at least 5 years, think carefully before extracting the last ounce of perfomance with very high RAM voltages.

 

[Anti illuminati]

hey guys you didnt get me at all. its not about 4 dimms and there is no dust or debris. i said at first i thought like that which was wrong. forget about 4 ram stick. i mean my two new rams that bought recently has problem with xmp.

 

[Anti illuminati]

i test all rams and i figured out one of my 4 rams ( one stick of new ram) gives this error when xmp is on. i test others with xmp on or off gives no error but this one gives error. i should send to warranty

https://imgur.com/a/He3qk4H

View: https://imgur.com/a/He3qk4H

 

[Bob.B]

i test all rams and i figured out one of my 4 rams ( one stick of new ram) gives this error when xmp is on. i test others with xmp on or off gives no error but this one gives error. i should send to warranty

https://imgur.com/a/He3qk4H

View: https://imgur.com/a/He3qk4H

If this bad stick was part of a 2 stick kit you return the kit.

 

[Anti illuminati]

If this bad stick was part of a 2 stick kit you return the kit.

its not kit all of them are seperate.

 

[Bob.B]

its not kit all of them are seperate.

Return the stick.
Keep in mind that you might go a little nutty trying to get all these different sticks of ram to play nice together.

 

[Anti illuminati]

Return the stick.
Keep in mind that you might go a little nutty trying to get all these different sticks of ram to play nice together.

no i play with 3 stick (24 gb) with no problem or crash. i will return it

 

[Misgar]

If you're only installing 3 sticks, at least one of them will run in single channel mode, slowing things down. Ideally, you should be running sticks in pairs or quads for dual channel mode which is significantly faster.

 

[SkyNetRising]

you should be running sticks in pairs or quads for dual channel mode which is significantly faster.

4 ram modules is not quad channel mode.
On dual channel motherboard ( like msi z590 gaming edge wifi) - 4 ram modules can work in dual channel mode max.

 

[Misgar]

When I said quad, I was trying to imply it was better to buy a kit of four matched DIMMs, instead of two disparate pairs. I didn't actually say quad channel mode, but "quads for dual channel". Sorry for the confusion.

If I ever get around to replacing my 7950X rig with a Threadripper system, then I can run quad channel.

I shall have to check if the Xeons in my two HP servers are running dual or quad channel. It's never seemed important.

 

[Anti illuminati]

When I said quad, I was trying to imply it was better to buy a kit of four matched DIMMs, instead of two disparate pairs. I didn't actually say quad channel mode, but "quads for dual channel". Sorry for the confusion.

If I ever get around to replacing my 7950X rig with a Threadripper system, then I can run quad channel.

I shall have to check if the Xeons in my two HP servers are running dual or quad channel. It's never seemed important.

hey guys is it the possibility of ram incompatible with my msi motherboard? because i heard msi motherboards are sometimes incompatible with some rams.

 

[Misgar]

I think it pretty safe to say that most motherboards will fail to work with some RAM modules. Your MSI board is no exception. Sometimes you're just unlucky.

Motherboard manufacturers issue a list of compatible RAM when they release a new board. They don't always keep the QVL up to date.

I've found most RAM works fine on the numerous boards I've purchased, but I'm cautious when applying XMP settings and don't care if I cannot extract the last ounce of performance out of a kit. Stability is far more important to me.