Question Memory instability

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gabrielpiccolo4

Feb 27, 2025
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I'm facing crashes in games and apps on Windows. Sometimes, it's a full system crash, sometimes just the application closes. I know one of my PC parts is defective, but I can't pinpoint which one.

What I've Tested So Far:​

  • MemTest86: Sometimes shows errors, sometimes doesn’t.
  • RAM: Swapped with another kit, issue persists.
  • GPU: Changed to another GPU, same problem.
  • OCCT Power Test: Ran for 30 minutes, no issues, temps & power draw seemed normal.
  • BIOS: Currently running version (1.93 beta).

My PC Specs:​

  • CPU: Ryzen 7 7700
  • RAM: Kingston KF560C30BBEK2-32 (Default settings, 4800 MHz)
  • Mobo: MSI B650M GAMING PLUS WIFI
  • GPU: RTX 4070 Super
  • Storage: 1 SSD M2, 2 SSDs SATA
  • PSU: XPG Core Reactor II 750W

Next Steps?​

I’m thinking about sending my motherboard for warranty, but it could also be the CPU or PSU. Unfortunately, no local shops have AM5 parts to test.
Has anyone faced something similar or has suggestions on how to narrow it down further?
 
How old is that PSU? Original to build, new, used, refurbished?

= = = =

Look in Reliability History/Monitor and Event Viewer.

Either one or both tools may be capturing some error codes, warnings, or informational events just before or at the time of system crashes or applications shutting down.

Reliability History/Monitor is end user friendly and the timeline format may reveal some pattern.

Event Viewer requires more time and effort to navigate and understand.

How To - How to use Windows 10 Event Viewer | Tom's Hardware Forum (tomshardware.com)

You can click any given entries for more details. The details may or may not be helpful.
 
Ralston18 said:
How old is that PSU? Original to build, new, used, refurbished?

= = = =

Look in Reliability History/Monitor and Event Viewer.

Either one or both tools may be capturing some error codes, warnings, or informational events just before or at the time of system crashes or applications shutting down.

Reliability History/Monitor is end user friendly and the timeline format may reveal some pattern.

Event Viewer requires more time and effort to navigate and understand.

How To - How to use Windows 10 Event Viewer | Tom's Hardware Forum (tomshardware.com)

You can click any given entries for more details. The details may or may not be helpful.
Click to expand...
Thanks for the reply!

The PSU is brand new. On Reliability History, the applications that close always show as Stopped working. Exception code: c0000005.

While gaming, I always catch this error: 0xc0000005, which is related to memory. As I keep using Windows, it starts corrupting files and throwing other errors, I ran chdsk, DISM and sfc already many times, I formatted windows many times.

Right now I could find the following errors:

BlueScreen
0xc000027b
0xc0000005
0xc000027b
0xc0000409
 
gabrielpiccolo4 said:
I'm facing crashes in games and apps on Windows. Sometimes, it's a full system crash, sometimes just the application closes. I know one of my PC parts is defective, but I can't pinpoint which one.

What I've Tested So Far:​

  • MemTest86: Sometimes shows errors, sometimes doesn’t.
  • RAM: Swapped with another kit, issue persists.
  • GPU: Changed to another GPU, same problem.
  • OCCT Power Test: Ran for 30 minutes, no issues, temps & power draw seemed normal.
  • BIOS: Currently running version (1.93 beta).

My PC Specs:​

  • CPU: Ryzen 7 7700
  • RAM: Kingston KF560C30BBEK2-32 (Default settings, 4800 MHz)
  • Mobo: MSI B650M GAMING PLUS WIFI
  • GPU: RTX 4070 Super
  • Storage: 1 SSD M2, 2 SSDs SATA
  • PSU: XPG Core Reactor II 750W

Next Steps?​

I’m thinking about sending my motherboard for warranty, but it could also be the CPU or PSU. Unfortunately, no local shops have AM5 parts to test.
Has anyone faced something similar or has suggestions on how to narrow it down further?
Click to expand...
If memtest86 shows errors that takes windows out of the mix.
You must get that to run error free.

Remove the gpu and connect to the igp.......run memtest86.

If no help unplug all disk.....run memtest86.
 
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Reactions: gabrielpiccolo4
Bob.B said:
If memtest86 shows errors that takes windows out of the mix.
You must get that to run error free.

Remove the gpu and connect to the igp.......run memtest86.

If no help unplug all disk.....run memtest86.
Click to expand...
I'm going to try, I didn't know disks and GPU could affect the memtest.
 
Bob.B said:
If memtest86 shows errors that takes windows out of the mix.
You must get that to run error free.

Remove the gpu and connect to the igp.......run memtest86.

If no help unplug all disk.....run memtest86.
Click to expand...
Hey, so I removed the GPU, and the problem stopped, what does this mean?

Before upgrading to a 4070 Super, I had a 1660 Super, same issue was happening, so I know it's not a GPU issue.
 
Bob.B said:
Try it see what the results are.
Click to expand...

Results so far:

Integrated graphics - No errors on MemTest86+, tested for almost 9 hours.
GTX 1660 Super - More stable, had an error after 7 hours on MemTest86+.
RTX 4070 Super - Less stable, the error often occur within 2 hours, but I haven't tested again this week.

I'm in touch with AMD, sent some monitoring files so they can help me understand what's going on.

One thing weird I noticed while the crashes happen:

loP7Aa6.png


The Virtual Memory Load jumps to 98.4%, but the physical memory load is only 42.2%, and then it goes back...
 
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