Is my memory incompatable?

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matt4798

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Jul 5, 2013
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Ever since I built my new rig back in February I have been having issues with regular blue screening. These blue screens normally contain an error line of MEMORY_MANAGEMENT or PAGEFILE IN NONPAGE AREA.

Now I have suspected for a while that my memory (Corsair Vengeance 1866Mhz (2x8gb)) is either incompatible with my ASUS M5A99X EVO R2 mobo [strike](although the Manuel said it was compatible)[/strike] and/or my AMD FX8350 processor.
This is mainly because my computer runs the memory in an unstable manner at anything other that 1600Mhz, with certain applications crashing upon start-up, with windows error report dialog appearing.

These issues have also, I believe the memory being the cause, caused my processor, whilst running the Prime95 stress test to blue screen my system; that is when running a test on all 8 threads, running on 1, 2 or 4 simply causes the test fail with no BSOD. Also a stability test on AMD Overdrive resulted in, firstly, an error I can't recall (sorry for that) and, on a second test, multiple warnings of potential hardware failure.

Now I would like to know if my memory is incompatible and ,if it is, what memory replacements would you recommend to me as a replacement or weather I may have genuinely faulty hardware and steps I can take to rectify the issue.

Please help as I'm fed up with constant BSODs and don't want any major problems to occur later down the line.

Edit: Memory isn't on QVL.
 
Solution
Tradesman1
This should be, unless you have a 'weak' 8350, the CPU and MC are rated to run 1866 at 1 DIMM per channel, problem is AMD in general has weak MCs (memory controllers) and yu may have one that falls under the norm, if so might try at 1600, 8-8-8-24, 1.5 which will be near same performance wise though you give up a little bandwidth
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Tradesman1

Tradesman1

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Have you tried running the sticks under XMP or DOCP? If not make sure you have the latest BIOS and try that. If no joy, then can you post up your DRAM timings, the model # of your DRAM, how many sticks, and also the system voltages from the BIOS (CPU, IMC< VTT whatever voltages are adjustable - can prob get them smoothed out and running right
 
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matt4798

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Jul 5, 2013
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From what I could tell my computer is already running with XMP.

Here's the info I could obtain from looking in the bios;

Memory

Part Number: CMZ16GX3M2A1866C9

2 Sticks (8gb)

Memory Voltage: 1.5v

CAS Latency: 9
RAS to CAS: 9
RAC Precharge: 9
tRAS: 24
tRC: 33

Thought this a bit strange: The BIOS said the memory was running at 1439Mhz, also under the XMP#1 Column it said it was 1867Mhz.

CPU
VCORE Voltage: 1.368
CPU Voltage: 1.35v @ 4.37Ghz (I haven't overclocked this, unsure as to why it was so high)

Hope this info helps you to look into my issue further.

 
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matt4798

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Jul 5, 2013
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I did read some info somewhere, can't remember now, about ASUS giving some less than honest info about memory compatibility.
 
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Tradesman1

Tradesman1

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Jun 5, 2013
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Set the freq manually to 1866, leave timings as is, CR to 2N or 2T, DRAM voltage to 1.55 and CPU/NB to 1.22 - and give that a try

As far as Asus being honest - actually all mobo makers do the same - they list 'compatible' freqs in their advertising based on the mobo chipset - if you want some interesting reading on mobos and QVLs, see my thread here (this stuff makes me crazy, because people buy DRAM based on mobo advertising, rather than what their CPU can handle)

http://www.gskill.us/forum/showthread.php?t=10566
 
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matt4798

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Jul 5, 2013
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Right just about to give my new settings a try, I will post again if any further issues occur.

And next time I buy memory I'll definitely make sure it will be compatible with my processor as well as the mobo.
 
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Tradesman1

Tradesman1

Legenda in Aeternum
Jun 5, 2013
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This should be, unless you have a 'weak' 8350, the CPU and MC are rated to run 1866 at 1 DIMM per channel, problem is AMD in general has weak MCs (memory controllers) and yu may have one that falls under the norm, if so might try at 1600, 8-8-8-24, 1.5 which will be near same performance wise though you give up a little bandwidth
 
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Solution
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matt4798

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Jul 5, 2013
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Well it would appear I have a "weak" 8350 as the system didn't post on 1866. I will try the 1600Mhz, has worked before so fingers crossed.

Also just another quick question are there any programs that I can overclock the memory from the desktop with as my BIOS is limited in memory options?
 
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matt4798

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Jul 5, 2013
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Got the new settings running, running OK at the moment, will have to leave it a day or two before I can safely say the issue is resolved. Also, do I keep the CPU voltage of 1.22?

As for the suggestion of the software from ASUS, think I've got what your talking about, called the AI Suit, settings just as bad as in the BIOS, but I'm sure I can live with it.

I'm going to run my Memtest86+ tomorrow to check if I get less than 600 errors before 40% this time.
 
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matt4798

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You told me to set the CPU/NB to 1.22 in one of your previous posts, but it seems my system has reset it to 1.3 volts.

If you want to look at my CPU voltages take a look at this screenshot:
OY2wICM.png
 
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matt4798

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Jul 5, 2013
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Well I set the NB/VID to 1.21, running smoothly still. Thanks for your help, hope the BSODs will soon be a distant memory, and will post another thread if I have any continuing issues. Thanks very much.
 
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littleleo

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May 8, 2009
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I've had this issue pop up from time to time, and you can have two identical systems run side by side and one works perfectly and one is unstable. Though the specs say it will run a certain speed the system become unstable and crashes unless you use lower speed RAM or down clock it. That is why I gave him a tech support email contact with Asus so he could get some help. It appears Matt has got it working so lets hope it stays stable and he can enjoy his machine.
 
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Tradesman1

Tradesman1

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Jun 5, 2013
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OK, , I see where you are coming from, but it's not really the mobo, it's the CPU that generally has the problems and you USE the mobo to adjust around the problem...your example is one I use often, once built 5 identical rigs and not a single pair had settings the same, could move a CPU from one to another and have to set up both all over again, sort of like the study Asus did recently with a couple hundred Haswells, they came up with about 70% could OC to 4.5, but after that down to 30% at @4.6, 20% @4.7 and only 10% could hit 4.8
 
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