RAM upgrade from 8 GB to 16 GB - gets random BSoD etc.

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Mr-C

Mr-C

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Jan 5, 2014
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Dear users at tomshardware


I've just upgraded my RAM from 8 GB to 16 GB.

The kits are 100% identical. It's both F3-14900CL9D-8GBSR from G.Skill. (1866MHz)

I had 2 x 4 GB in SLOT2 and SLOT4 before. Then inserted the new RAM modules in SLOT 1 and SLOT3 and short after started to get random BSoD even just with FireFox open and away from PC. I could game BF4 without no problems, but random things like surfing etc. got BSoD. I did not do anything else than upgrading the RAM.

I then ran an over 8 hour long memtest86 test with all the modules together and got this error:

2czsv9i.jpg



Then I took out the two old modules from SLOT2 and SLOT4 and inserted the new modules in SLOT2 and SLOT4 and the memtest86 test is still running for now 2,5 hours (3 passes and 0 errors) so far.

What might be the problem? Bad DIMM slots for 1 or 3 or what? They have never been used. The build is from january 2014.



Motherboard is MSI Z87-G45 Gaming.
 
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Mr-C

Mr-C

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I forgot to mention, that I've set XMP profile1 for the modules in the BIOS and speed to 1866 MHz like the kits are designed to run at. The first kit haven't made any problems since january 2014 at all. So it might not be reason?
 
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festerovic

festerovic

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In your manual, page 3-19:
go to DRAM Timing Mode [Auto] and Change to [Link]

go to Advanced DRAM Configuration
look for something that says Command Rate and lets you choose 1t, 2t or auto. Just force it to 2t, it really helps when you use 4 sticks.
 
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Mr-C

Mr-C

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So, I tested the two brand new modules in DIMM2 and DIMM4 for 14 passes. Is it considered as good RAM then?

21kdymf.jpg



So If I install the two old modules in DIMM1 and DIMM3 and get BSoD, It might be the DIMM1 and or DIMM3 slot thats faulty? Because when these modules were installed in DIMM2 and DIMM4 (before I decided to buy those new ones) there were no errors what so ever.

Should I then test only one module in DIMM1 and then the same module in DIMM3 and see what result I get? If that makes sense.
 
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Mr-C

Mr-C

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Okay, The PC have been powered on and running the whole day without BSoD. I'm using it now without any BSoD etc.

The only thing I did was installing the old modules in DIMM1 and DIMM3 (where the new modules started to be in and got BSoD).

A seating problem/dust or what?
 
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festerovic

festerovic

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If you are sure that during the testing phase of memtest, that the entire range of your memory is being tested, and it all passes, then they are all good. I would require 2 passes to be happy, myself.

In the pic you posted above, it says "Testing: 6144-8192 ...." that is letting you know what section of the ram is being tested. I don't have the MSI version of memtest, so i don't know if it will test the entire range of your memory by default. In the pic above, it is obviously testing all the way thru 8gb, so that is a good sign. I haven't used memtest for a while, but when I did, you had to specify the ranges if you had over a certain amount of memory.
 
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Tradesman1

Tradesman1

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What mobo and CPU? Mixing DRAM isn't a good idea, even with the exact same model, also when mixing additional DRAM and MC voltage are often required, try raising the DRAM voltage + 0.05 and see how it goes, (and as asked, let us know mobo and CPU)
 
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Mr-C

Mr-C

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Motherboard is a MSI Z87 G45 Gaming.
CPU is (as shown in the pics :)) - ) i5-4670k.

It is overclocked to 4,4 GHz stable (And I did not have any issues with the OC before installed 2 new modules).

The RAM modules is running in OC as 1866 and XMP profile1 selected (as profile2 is the same in the BIOS).

Everything was running smooth until I installed the 2 new modules.


----------------------------------------------------------------------------
Before upgrade:

DIMM1:
DIMM2: Old module
DIMM3:
DIMM4: Old module

- No BSoD etc. Everything is running smooth.

1. try:
DIMM1: New module
DIMM2: Old module
DIMM3: New module
DIMM4: Old module

- Got a lot of BSoD. Both from atikmdag.sys, tcpip.sys, ntoskrnl.exe, dxgkrnl.sys and dxgmms1.sys
- Ran a memtest86 as shown in the first picture in my first post and got an error (could be false positive, when testing all RAM together someones says?)


2. memtest86:
DIMM1:
DIMM2: New module
DIMM3:
DIMM4: New module

- 14 pass 0 errors for 13h22m.

2. try:
DIMM1: Old module
DIMM2: New module
DIMM3: Old module
DIMM4: New module

- And now I've only got about 2-3 BSoD over multiple days. And it is:
1. SYSTEM_SERVICE_EXCEPTION - 0x0000003b - ntoskrnl.exe
2. KMODE_EXCEPTION_NOT_HANDLED -0x0000001e - ntoskrnl.exe

I used the PC the whole evening yesterday (6 hours) surfing internet, gaming, youtube, editing pictures in photoshop etc. No problems at all.
 
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Mr-C

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So it would be from the standard 1,5V to 1,55V?
- I've raised the Volts now to 1,55V (but it corrected it to 1,545 itself i the BIOS every time I wrote 1,55).
 
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Mr-C

Mr-C

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Now I just got a USBPORT.SYS BSoD when watching video in browser. I've never had that one before.
I was about to take a photo with my phone of the screen, but it was going away too fast than normal.

Minidump says cdrom.sys+c06f125 - DRIVER_IRQL_NOT_LESS_OR_EQUAL

But that was not what the BSoD showed me. And I haven't made any change at the USB driver or the CD/DVD-drive.
 
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Mr-C

Mr-C

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So, I am still trying to find a solution.

It seems to be working flawless with the NEW RAM MODULES in DIMM1 and DIMM3 (and having 2+4 empty) AND with the OLD RAM MODULES in DIMM2 and DIMM4 (1+3 empty), but if I have all 4 modules installed together, no matter which position they are mixed, the BSoDs is occurring.

I am running a stable OC at 4,4 GHz and with XMP profile1 selected for the modules all the time. So it might have something to do with the voltages, because the MB will have to feed 2 extra modules now, and its so stupid it can't keep other things as they were before? Only on the paper (BIOS settings). Fucking great.

So now I can play with all voltages for DRAM, VCCIN, CPU etc.

Should I try raising voltages higher than 1,545 for the modules? (When I write 1,55 BIOS automatically choose 1,545) but that didn't seem to help with the BSoDs.
 
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Mr-C

Mr-C

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I have found out that its only when XMP profile (or RAM set after the RAM specs: 1866 MHz 9-10-9-28) is enabled that I get all these random BSODs.
- And that's only when the CPU is OC'ed. If I set it to stock clock, and the XMP profile (or manual^^) is enabled/set, there is no problem.

What's my next move?
I'm currently trying running at 1600 MHz and manual timings as specs - So far so good. But that can't be right, can it? Its god damn rocket science all this tweaking.

I bumped CPU core voltage up from 1,26V to 1,27V.
 
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Mr-C

Mr-C

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There is no such option in the BIOS menu. Should it go under VCCIN? (BIOS says this: VCCIN Voltage: Sets the CPU input voltage. The CPU input voltage is the CPU power source that is shared with components of the CPU.)
 
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