Weird memory management BSOD issues.

[Remixt]

I'm trying to apply a fairly standard OC to my machine and I think I may have bought some bad memory or something. My memory doesn't seem to want to operate at anything lower than its advertised 3200 mhz, but its also not very stable at 3200. So far my highest stable settings (no crashes withing a week of testing under various loads) is to have my cpu at 4.3ghz and my memory at 3400 mhz. If its set to anything lower than 3400 mhz I will get the memory management BSOD within about an hour of any type of usage - from heavy benchmarking to changing my wallpaper.

 

This happens even when I leave my CPU at stock. Basically my memory hates XMP profiles and I have to manually set everything. The only other solution is to leave XMP off completely and leave my ram running at the non xmp max.

 

Isn't it weird that its less stable at lower speeds than higher ones? I wouldn't really care, except that my CPU won't go past 4.3 ghz when my memory is set to 3400, and I can almost hit 4.6 ghz when my memory is set to 3200. 

[Garett1]

6 minutes ago, Remixt said:

I'm trying to apply a fairly standard OC to my machine and I think I may have bought some bad memory or something. My memory doesn't seem to want to operate at anything lower than its advertised 3200 mhz, but its also not very stable at 3200. So far my highest stable settings (no crashes withing a week of testing under various loads) is to have my cpu at 4.3ghz and my memory at 3400 mhz. If its set to anything lower than 3400 mhz I will get the memory management BSOD within about an hour of any type of usage - from heavy benchmarking to changing my wallpaper.

 

This happens even when I leave my CPU at stock. Basically my memory hates XMP profiles and I have to manually set everything. The only other solution is to leave XMP off completely and leave my ram running at the non xmp max.

 

Isn't it weird that its less stable at lower speeds than higher ones? I wouldn't really care, except that my CPU won't go past 4.3 ghz when my memory is set to 3400, and I can almost hit 4.6 ghz when my memory is set to 3200. 

Does your motherboard support 3400 mhz ram?

[Remixt]

1 minute ago, Garett1 said:

Does your motherboard support 3400 mhz ram?

No, but my ram is 3200. I just OC it to 3400 because its more stable for some reason.

 

Spec sheet says 3300. https://www.asus.com/us/Motherboards/RAMPAGE_V_EXTREMEU31/specifications/

[Poohl]

How are you adjusting your Ram Speed?

Check the Timings.

Is your Voltage correct.

Try to set TRFc to it's max value.

[Remixt]

Just now, Poohl said:

How are you adjusting your Ram Speed?

Check the Timings.

Is your Voltage correct.

Try to set TRFc to it's max value.

just using the drop down menu. Voltage is set to 1.5 the timings are default via the built in xmp profile, haven't messed with those at all.

[Poohl]

4 minutes ago, Remixt said:

just using the drop down menu. Voltage is set to 1.5 the timings are default via the built in xmp profile, haven't messed with those at all.

What Dropdown menu? in the Bios?

 

The stock Values:

Quote

Getestete Latenz: 16-18-18-36

Spannung: 1,35 V

At stock it should run perfectly fine. when ocing you might have to loosen the Timings (the Timings are the time required to do something specified in clock cycles. more clock cycles means less time.)

[Remixt]

3 minutes ago, Poohl said:

What Dropdown menu? in the Bios?

 

The stock Values:

At stock it should run perfectly fine. when ocing you might have to loosen the Timings (the Timings are the time required to do something specified in clock cycles. more clock cycles means less time.)

That's odd, I never changed the memory voltage on my own. The xmp profile set it to 1.5 automatically.

[Poohl]

Like i said try the stock values and increasing TFRc.

Is the Northbrige (or the Southbridge idk) oced?

[Remixt]

10 minutes ago, Poohl said:

Like i said try the stock values and increasing TFRc.

Is the Northbrige (or the Southbridge idk) oced?

Nope. I'll have to wait until I get home to try the new voltage. I'll quote you again once I find out if that helps.

[done12many2]

1 hour ago, Remixt said:

just using the drop down menu. Voltage is set to 1.5 the timings are default via the built in xmp profile, haven't messed with those at all.

 

In what configuration did you buy the memory?  8 x 4, 4 x 8, or 2 x 16?  Did you buy one set or separate?

[Remixt]

17 minutes ago, done12many2 said:

 

In what configuration did you buy the memory?  8 x 4, 4 x 8, or 2 x 16?  Did you buy one set or separate?

Two different sets of 2X8gb

[done12many2]

29 minutes ago, Remixt said:

Two different sets of 2X8gb

 

That's why your 5930k hates XMP so much.  The XMP setting for that memory is certified to run at the specified voltage, speed and timings for the two sticks alone.  During the binning of memory sticks, the manufacturer tests a 2 x 8 set as a pair only.  You'd think that you can just combine two sets as long as they were same make and model, but that's not how it works.  

 

The quality of the memory increases as the sets grow in quantity or sticks increase in density when it pertains to x99.  This is why you'll find DDR4 sets certified for x99 and z170.  They may look identical, but they aren't.  The set certified for x99  will run on a z170 platform, but not the other way around.  Skylake has a much more forgiving memory controller (IMC) and can run just about anything.  x99, not so much.

 

This is not to say that you can't get the memory working on your setup, but you will more than likely never get it to run XMP right out of the box.  Every now and then folks get lucky and buy two separate sets and they work together, but all this means is that they were lucky enough to get two very closely matched sets with regards to quality.  

 

Your best bet is to continue the manual adjustment, but there should be no need for you to run 1.5v just to get 3200 out of those sticks.  1.4v to 1.45 should be more than enough to help you offset any quality differences between the set.  You may also need to increase your VCCIO just a tad to help the IMC on your CPU deal with the RAM a little better.

 

It's definitely some trial and error. The key thing is to verify all of the changes you make.  AIDA64, specifically the Cache and Memory Benchmark can let you know if your heading in the right direction with your timings as you go.  Obviously, you want to check basic stability as you go as well which can also be done with the AIDA64 memory stress test.  I wouldn't recommend that as your final stability check, but it's great for spot checking you timings. 

 

Going back to your question.  No, your memory isn't necessarily more stable at higher speeds as that's almost never the case.  It's just a matter of your memory happens to seem more stable at the higher speed because of the timings that you currently have set.  Adjust your timings correctly for 3200 and your memory will certainly be more stable than it is at 3400.  I don't know of any HWE chips running 3400 at decent timings stable.  There are some BWE chips doing it, but it's not common there either.

 

**additionally, once you get the correct memory settings and help your CPU's IMC out with some additional VCCIO, you'll more than likely be able to dial that 4.6 overclock that you want.  

[Remixt]

3 minutes ago, done12many2 said:

 

That's why your 5930k hates XMP so much.  The XMP setting for that memory is certified to run at the specified voltage, speed and timings for the two sticks alone.  During the binning of memory sticks, the manufacturer tests a 2 x 8 set as a pair only.  You'd think that you can just combine two sets as long as they were same make and model, but that's not how it works.  

 

The quality of the memory increases as the sets grow in quantity or sticks increase in density when it pertains to x99.  This is why you'll find DDR4 sets certified for x99 and z170.  They may look identical, but they aren't.  The set certified for x99  will run on a z170 platform, but not the other way around.  Skylake has a much more forgiving memory controller (IMC) and can run just about anything.  x99, not so much.

 

This is not to say that you can't get the memory working on your setup, but you will more than likely never get it to run XMP right out of the box.  Every now and then folks get lucky and buy two separate sets and they work together, but all this means is that they were lucky enough to get two very closely matched sets with regards to quality.  

 

Your best bet is to continue the manual adjustment, but there should be no need for you to run 1.5v just to get 3200 out of those sticks.  1.4v to 1.45 should be more than enough to help you offset any quality differences between the set.  You may also need to increase your VCCIO just a tad to help the IMC on your CPU deal with the RAM a little better.

 

It's definitely some trial and error. The key thing is to verify all of the changes you make.  AIDA64, specifically the Cache and Memory Benchmark can let you know if your heading in the right direction with your timings as you go.  Obviously, you want to check basic stability as you go as well which can also be done with the AIDA64 memory stress test.  I wouldn't recommend that as your final stability check, but it's great for spot checking you timings. 

 

Going back to your question.  No, your memory isn't necessarily more stable at higher speeds as that's almost never the case.  It's just a matter of your memory happens to seem more stable at the higher speed because of the timings that you currently have set.  Adjust your timings correctly for 3200 and your memory will certainly be more stable than it is at 3400.  I don't know of any HWE chips running 3400 at decent timings stable.  There are some BWE chips doing it, but it's not common there either.

Well dang I had no idea! I bought both at the same time instead of buying a 4 pack because they were on sale at micro-center. I don't remember seeing anything on the packaging about x99 or z170 though.

[done12many2]

Just now, Remixt said:

Well dang I had no idea! I bought both at the same time instead of buying a 4 pack because they were on sale at micro-center. I don't remember seeing anything on the packaging about x99 or z170 though.

 

I love Micro Center, but some times the guys selling you stuff don't know what the hell they are selling.  Technically what they sold you will work, but only at 2133 to 2400 out of the box if you weren't willing to make your own adjustments.  

 

I'll try to find you some examples.

[Remixt]

7 minutes ago, done12many2 said:

 

I love Micro Center, but some times the guys selling you stuff don't know what the hell they are selling.  Technically what they sold you will work, but only at 2133 to 2400 out of the box if you weren't willing to make your own adjustments.  

 

I'll try to find you some examples.

This is what my box looked like on both packages.

 

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[done12many2]

Just now, Remixt said:

This is what my box looked like on both packages.

 

Can't see it.  Edit your post and drag the picture up into the dialogue box and it will show up correctly.  LTT site is still freaking out.

[Remixt]

2 minutes ago, done12many2 said:

 

Can't see it.  Edit your post and drag the picture up into the dialogue box and it will show up correctly.  LTT site is still freaking out.

• http://imgur.com/a/LbQiY

Site is freaking out and won't let me. Here is an imgur link to it.

•  

[done12many2]

 

 

Even though this set is good for z170, it's not necessarily "plug and play" for XMP on x99.

 

http://www.corsair.com/en-us/dominator-platinum-series-32gb-4-x-8gb-ddr4-dram-3200mhz-c16-memory-kit-cmd32gx4m4b3200c16

 

These sets are for use with x99.

 

http://www.corsair.com/en-us/dominator-platinum-series-32gb-4-x-8gb-ddr4-dram-3000mhz-c15-memory-kit-cmd32gx4m4b3000c15

 

http://www.corsair.com/en-us/dominator-platinum-series-32gb-4-x-8gb-ddr4-dram-2800mhz-c16-memory-kit-cmd32gx4m4a2800c16

 

 

 

Go down to "Contents and Specifications" and it will tell you recommend uses.

 

 

[Remixt]

1 minute ago, done12many2 said:

 

 

Even though this set is good for z170, it's not necessarily "plug and play" for XMP on x99.

 

http://www.corsair.com/en-us/dominator-platinum-series-32gb-4-x-8gb-ddr4-dram-3200mhz-c16-memory-kit-cmd32gx4m4b3200c16

 

These sets are for use with x99.

 

http://www.corsair.com/en-us/dominator-platinum-series-32gb-4-x-8gb-ddr4-dram-3000mhz-c15-memory-kit-cmd32gx4m4b3000c15

 

http://www.corsair.com/en-us/dominator-platinum-series-32gb-4-x-8gb-ddr4-dram-2800mhz-c16-memory-kit-cmd32gx4m4a2800c16

 

 

The latency on the z170 stick is the exact same as my sticks. I wonder if I've got the z170 ones =X

[done12many2]

Just now, Remixt said:

The latency on the z170 stick is the exact same as my sticks. I wonder if I've got the z170 ones =X

 

Who knows, but it really doesn't matter at this point.  You'll be able to get it to work fine, but it'll just take a bit more work than you initially anticipated.  No biggie.  That makes the learning fun.