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Occasional Memory Management BSOD (1a) and weird Memtest64 errors when testing

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#1
So yeah, my PC has been behaving strangely the last week or so.
Browser would just close out of nowhere, the game I play (BDO) would also do that, or give me a "corrupted file" error that clearly has nothing to do with a corrupted file. Both applications can go on for hours without any issues though.
I've also had three BCCode 1a BSODs, so I finally ran Memtest last night and while most loops go without errors, on occasion it will find one at a specific memory address and keep getting the same one, until I restart the test. It is a different address every time though.
It's somewhat similar to the "corrupted file" issues of BDO where if I keep trying to load the character/area I've first gotten the error at, the game will keep crashing, but if I load a different one then there's usually no problem.
My question is can these problems be caused by something else other than the DRAM chips? I find it hard to believe they suddenly developed "bad sectors", and I'm more inclined to think it's the CPU memory controller (it's the oldest part by far and runs very hot these days, cause it's a 40+C heat where I'm for the summer). How can I test for that?
 
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#2
Drop the OC on the CPU and use the lowest frequency available for the RAM. See what happens after that. Do you have just 1 stick of RAM ?
 
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#3
The CPU ain't OC'd atm, but I'll try minimizing the DRAM frequency.
I've got 4 sticks, the problem is that they're all under the CPU fan and impossible to remove unless I dismantle the whole thing :/
 
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#4
Thing is , a broken memory controller typically results in a nonfunctional CPU and no boot. It is much more likely to have bad DIMMs or bad memory slots on the motherboard.
 
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#5
up the nb volts a bump or drop the ram latency.
 
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#6
Thing is , a broken memory controller typically results in a nonfunctional CPU and no boot. It is much more likely to have bad DIMMs or bad memory slots on the motherboard.
How right you were...

Nonfunctional CPU and no boot since last night :)

Ryzen 5 here we come lol
 

hat

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#7
Are you sure the CPU is nonfunctional? Tried 1 stick at a time in different slots?
 
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Processor AMD Ryzen 5 1600 3.6GHz
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Memory 16GB Corsair Vengeance LPX DDR4 3200MHz
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Storage Samsung EVO 850 250GB SSD; 2x1TB SATA2 HDD;
Display(s) Iiyama ProLite B2783QSU
Case Cooler Master Elite 361
Power Supply Cooler Master G750M
#8
Yep. No matter what I do there's the CPU LED glowing red and the CPU fan ain't turning. As far as the mobo is concerned I might as well be running an empty socket.