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New Build System Stability Issue...

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Ok, one final picture here then, (just in case anyone recognizes anything specific). I set XMP to ON (edit: it was already on) and ran the MEMtest again but this time only testing TEST 13 for 4 passes, its nearly done but it has found the same error each time and on each pass....

Optimizedlatest-20150219_201212.jpg
 

eidairaman1

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That sounds to me like a memory CONTROLLER problem. The IMC is on the cpu itself ever since Sandy Bridge.

Can you override the XMP settings and run them at 1600 instead of 2133? Are they 1.5v or low-voltage1.35v or so? Then do Memtest again, and see if it makes a difference.

finally, is there another set of RAM you can also put in to try and replicate the problem?

EDIT: @eidairaman1 may be right...they may be incompatible with the board. In counter to his G-skill, if that is the case, then I suggest Mushkin. I rarely find them on anybody's compatibility list, yet I have not found a motherboard yet that wouldn't take them and run well with them.

I Had Reds in the Day (pc4000). Stable and ran well. Forgot those.

5 Brands for compatibility is Mushkin,Gskill, Kingston, Adata, Crucial.

No experience with Patriot, Teamgroup.

Most tempermental is Corsair Now.

Ok, one final picture here then, (just in case anyone recognizes anything specific). I set XMP to ON (edit: it was already on) and ran the MEMtest again but this time only testing TEST 13 for 4 passes, its nearly done but it has found the same error each time and on each pass....

View attachment 62829

Try the RMA. Take major precaution to ESD.

If that doesnt cut it shell out cash for non corsair.
 
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To update further, I have followed instruction from my vendor to test the rig under different circumstances which involved removing everything except the cpu, mboard and Ram and running them outside the case to see if any errors surfaced under memtest then. So i disconnected all HDD's and my GPU and ran the test again. Strangely No Errors. at all. Then I reconnected my SSD and ran again, still no errors. Finally i put in the GPU and ran again, but this time encountered the same familiar errors.......Its blown my mind a little that simply inserting a GPU and not even booting into windows can somehow cause these MEMTEST errors to appear, and its left me a little confused as to what to do? Does this mean that my RAM is in fact fine, but my GPU is somehow responsible, or is this still the RAM but for some reason only showing up when the GPU is inserted.....?

As previously mentioned, my vendor has offered to replace the RAM and I'm in the process of getting hold of some other RAM to test out, but i'm still curious to see if anyone has any idea why a GPU would/could be causing these errors?
 

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Hmmm, that is a headscratcher. Obviously the GPU or the GPU slot is the offending party. So why the RAM waits to have errors until GPU is inserted I don't know. I think the GPU CAN access system RAM (much much slower, btw than VRAM) if it needs to, but I don't know if it would make a "call" so to speak to the RAM, reserving space, that could have activated the DRAM enough that showed that the RAM is the error. It's more than I know anything about.
 

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nothing mind blowing about the gpu change installing a gpu changes the memory map table,possibly exposing bad addresses, a bad IMC In the cpu is also a possibility,tho a very remote one,I would try reseating the cpu
there is nothing wrong with re-using a old hdd containing a old install of windows either that has not been a issue since windows 7 it is how ever recomended to run sysprep before swaping tho
 
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Ok thankyou for the input, I'm gonna try running another test with the GPU inserted into the other x16 slot and see what happens, as it could be the slot itself, but like you said, it still baffles me as to how any of this could affect my RAM sticks in the middle of MemTest pass.....
 

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Ok thankyou for the input, I'm gonna try running another test with the GPU inserted into the other x16 slot and see what happens, as it could be the slot itself, but like you said, it still baffles me as to how any of this could affect my RAM sticks in the middle of MemTest pass.....
I would remove the cpu and re-install it and make sure not to over tighten the cooler, you want just a bit beyond `snug` don't torq it down until the screws bottom out,thats how pins get broken
 
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Ok will try that also....Silly question here though, do I need to re-apply thermal paste if I remove the cpu cooler each time I remove it, or is it fine to just put it back on if its only been a couple of seconds off?
 

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Ok will try that also....Silly question here though, do I need to re-apply thermal paste if I remove the cpu cooler each time I remove it, or is it fine to just put it back on if its only been a couple of seconds off?
always re-apply never re-use you introduce air when you do
you would be surprised how many weird or seemly unexplainable issues too much or too little socket tension will cause
 
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ok, so remove any residual stuff first (it came pre-applied with its own thermal paste)....I have a spare Arctic Silver 5 lying around so I assume I would be fine to use that?
 

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anytime you have memtest throwing a error you have a problem PERIOD!
nothing mind blowing about the gpu change installing a gpu changes the memory map table,possibly exposing bad addresses, a bad IMC In the cpu is also a possibility,tho a very remote one,I would try reseating the cpu
there is nothing wrong with re-using a old hdd containing a old install of windows either that has not been a issue since windows 7 it is how ever recomended to run sysprep before swaping tho

Thanks for confirming that I was at least basically on the right track about the GPU and the memory map!
 

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ok, so remove any residual stuff first (it came pre-applied with its own thermal paste)....I have a spare Arctic Silver 5 lying around so I assume I would be fine to use that?
AS5 will be fine paste is paste
 

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A failure on the hammer test is usually not critical and doesn't normally result in errors or a bsod,hammer test tests the banks for what is called 'bit rot' which is when you write to the save address very quickly it can cause the adjacent bits to 'flip'
http://www.ddrdetective.com/row-hammer/
of course if the ram has a underlying defect it will exasperate the problem
id re-run memtest without the hammer test option to see if you have a underlying problem
 
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Have ran memtest without the HammerTest on several occasions and get 0 errors. In fact whatever way i try it, i have never received any errors on anything except the Hammer Test. The strangeness (at least for me) was that I only get errors on the HammerTest when both 2 sticks of RAM are inserted and my GPU is plugged in, however, if only 1 stick is inserted (still with GPU plugged in) then no errors occur, and two sticks without GPU also results in no errors, it only seems to occur when both 2 sticks are inserted and the GPU is also in.
 

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if its only failing on the hammer test then ram should be ok
 
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This sounds to me to be a power distribution problem. That PSU should be easily enough to run that spec though.

Have you checked to make sure your GPU is properly connected to the required power cables? Also check the cable connections at the PSU end if it's modular. And of course all high power devices should be on their own rails if it's multi rail.

And if the CPU has onboard graphics, disable it in the BIOS.

It could even be that your MB has a faulty part or parts in the power circuit.
 

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Have you checked if you have the latest bios on your MB?

Just like frag Maniac says, to me it sound like the powerstyring on your MB isent stabile. If you dont have the latest bios, update it since normally it corrects a lot of powerstyring og solve ram problems.
 

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Have you checked if you have the latest bios on your MB?

Just like frag Maniac says, to me it sound like the powerstyring on your MB isent stabile. If you dont have the latest bios, update it since normally it corrects a lot of powerstyring og solve ram problems.

Confused by this lol
 
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I have now tried a different GPU (an older radeon 6950) and am still getting the same repeatable errors. One thing regarding memtest itself though, I made the newbie mistake of not checking what cpu cores were active whilst the test was running and have realized it is only testing CPU=0 of the 0-7 cores. This has only served to make things worse though as it was finding these errors just running the test passes for one core, so I've left it on again tonight now covering all cores and expect to find the same if not many many more errors by morning.

With the GPU's being swapped out and still getting the same error, I am also leaning towards a mboard issue, I've checked all psu cables and they seem to be connected fine, the PSU being an 850w GOLD I would assume its MORE than enough to cater for my hardware. Right now, to summarize once again so that the data is easier for people to read....

1) When two sticks of RAM are inserted along with a GPU (of any kind or make) the memtest fails on HammerTest everytime (even if just testing one cpu core).
2.) When one stick of RAM is removed, the other will not fail a test, no matter what slot it is in.
3) when the GPU is removed altogether, both sticks of RAM will pass the full Memtest without error also....

confused.com
 
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As is suspected, after leaving the tests running overnight with a gpu plugged in and all cpu cores active and being tested, it came back with over 156 errors just on HammerTest again.

Also, Have now tested the GPU's (both 6950 and gtx980) in two seperate slots on my motherboard and the same errors appear no matter which card is in either slot. Something is happening when a GPU of any kind is inserted into my motherboard in any slot, that is affecting the RAM during a memtest, but again only in the Hammer Test.

The problem i am now having with the RMA process is I don't know what to RMA, as some people have suggested it must be the RAM itself, while others the CPU and still the possibility of the motherboard or the PSU. I'm trying to devise new ways of reducing this choice but am struggling to find a way to test for this.

I may just RMA the entire thing.....
 

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Rma the motherboard, ram and gpu and take esd precautions to rebuild it or have a licensed shop do it for you
 

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Confused by this lol

It means some MB's have a tendency to undervolt especially to ram, but also to CPU, thats being corrected in an update. I think only Gigabyte is using a biosline called CLL, and thats make sure that power is stabile for CPU and for ram especially when you OC. My MB suffers a bit from it, but its not worse than you correct it in bios, by yourself.
 

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It means some MB's have a tendency to undervolt especially to ram, but also to CPU, thats being corrected in an update. I think only Gigabyte is using a biosline called CLL, and thats make sure that power is stabile for CPU and for ram especially when you OC. My MB suffers a bit from it, but its not worse than you correct it in bios, by yourself.

Your English had become Engrish in your previous post, that is why I was confused. I know what vdroop is. I have my C.P.U. at 4.5GHz with Vcore set at its auto rating (It is static now) of 1.368. The R.A.M. is set to XMP 2133 Profile with the proper timings and voltage.
 
Joined
Nov 9, 2010
Messages
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System Name Space Station
Processor Intel 13700K
Motherboard ASRock Z790 PG Riptide
Cooling Arctic Liquid Freezer II 420
Memory Corsair Vengeance 6400 2x16GB @ CL34
Video Card(s) PNY RTX 4080
Storage SSDs - Nextorage 4TB, Samsung EVO 970 500GB, Plextor M5Pro 128GB, HDDs - WD Black 6TB, 2x 1TB
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Case Corsair 7000D Airflow
Audio Device(s) Yamaha RX-V371
Power Supply SeaSonic Vertex 1200w Gold
Mouse Razer Basilisk V3
Keyboard Bloody B840-LK
Software Windows 11 Pro 23H2
I may just RMA the entire thing.....

No, and I doubt it's the GPU since both the ones you tried have the same result. I doubt it's even the RAM since it only does it with a GPU plugged in.

Did you try updating the MB BIOS?

Also, have you checked to see if PSU voltages are stable (not fluctuating wildly) and within acceptable ranges when a GPU is plugged in?

I would also try touching the MB VRMs after running it a while with GPU plugged in to see if any are unusually hot.

And of course thoroughly check all connections. I would also test to make sure your PSU is grounding properly.
 
Joined
Feb 22, 2011
Messages
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System Name My Rig
Processor I7 6700k
Motherboard Asus Z170 pro Gaming
Cooling Corsair H110i GT Liquid Cooler
Memory 16gb 3000mhz DDR4 Corsair Vengeance LPX
Video Card(s) Asus RGB STRIX gtx-1080 OC
Storage Samsung NVMe m.2 512gb primary drive
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Case phantek ethnoo LUXE
Audio Device(s) onboard/supremefx
Power Supply EVGA 850w GOLD
Mouse dragonwar chaos
Keyboard Steelseries 350
Software windows 10
Just for anyone who might read this and is having similar problems. I can report that the RAM itself was tested by the supplier and found to be faulty. Notably RAM at the same speed and by the same brand VengeancePro 2133mhz always revealed a few errors, however upon receiving exactly the same brand but at 2400mhz, I can confirm everything is absolutely fine. Amazing what a difference merely the extra bit of mhz seems to do, but perhaps its merely a very specific incompatibility between the 2133mhz sticks and the system.

One final note, originally the supplier did not run the HAMMER test in the MemTest program and it was only after my convincing them that they should do, that they were able to find the fault and confirm replacement RAM, so something I would recommend everyone do is to push for EVERY test to be done when RMA'ing any new kit.

Thanks again for any and all help with this issue.
 
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