Weird Shutdown Patters/ "Bit Flips"

[Hyra]

So a few months ago I assembled myself a decent daily driver desktop that I could use to browse the interwebs and engage in light gaming. In recent times, it's been experiencing weird behaviour.

1) It will often shut down randomly, but not always. Like I'd leave it for 15 minutes, I'd come back, and It's off. Or I could leave it overnight and could resume whatever I was doing. IDK why this happens, but It can be annoying.

2) Sometimes, but It hasn't happened for a while *knocks on wood*, the computer just dies, which is the best way I can describe it, and windows doesn't even bluescreen. I'm sitting there, doing whatever, and BAM, It's running through the POST sequence. This isn't because of any overclocks. (It runs stable at 4.2 GHz, but this can happen at base clock of 3.5GHz) I've been using it for 6 months, and it's only happened a few times *bangs on wood* but It can cause me to lose work, even though I don't do anything important at all.

 

System Specs:

MSI Z-97 Gaming 5 Mobo

Intel Core i5-4690K

8GB DDR3-1600 Hyper-X RAM

some HDD's

A fat Tower Cooler

And a stable overclock to 4.2 GHz.

 

On a side note, anyone know how to power On/Off the computer at certain times?

[sazrocks]

What PSU?

Define "Stable Overclock". How did you test it?

[Razor Blade]

Could be a power issue? What PSU do you have?

 

In my experience, when memory derps windows will bluescreen and restart. Never had it shut down.

[Hyra]

Just now, sazrocks said:

What PSU?

Define "Stable Overclock". How did you test it?

Stable overclock means I forgot about it and was using it fine for over a month. I also ran AIDA 64 Extreme for about 30 minutes and said it was fine. Thermals only kinda crept up to 65 C.

PSU is a Corsair TX850M or something like that

[Razor Blade]

If you suspect memory you could run memtest

 

http://www.memtest.org/

[Hyra]

Just now, Razor Blade said:

If you suspect memory you could run memtest?

 

http://www.memtest.org/

I'll see, It is likely. It's so old it has green PCB's and I bought it from China.

[sazrocks]

3 minutes ago, Planeguy102 said:

Stable overclock means I forgot about it and was using it fine for over a month. I also ran AIDA 64 Extreme for about 30 minutes and said it was fine

Yeah no. That doesn't mean its stable. AIDA 64 is trash for reliability testing. Memory issues are certainly possible though; run memtest.

[Razor Blade]

Just now, Planeguy102 said:

I'll see, It is likely. It's so old it has green PCB's and I bought it from China.

Green PCB isn't a bad thing...

[Hyra]

Just now, Razor Blade said:

Green PCB isn't a bad thing...

but it's not a good thing either...

[Hyra]

Rufus couldn't write memtest to my USB. which one should I download @Razor Blade ?

[.Apex.]

3 minutes ago, Planeguy102 said:

I'll see, It is likely. It's so old it has green PCB's and I bought it from China.

have you ever watched your PC shut down? RAM doesn't shut the system off instantly, its supposed to freeze, i'm guessing it's a power issue, or some faulty hardware (CPU, GPU, Motherboard)

could also be unstable power lines

[Razor Blade]

6 minutes ago, Planeguy102 said:

Rufus couldn't write memtest to my USB. which one should I download @Razor Blade ?

Yeah Rufus won't touch that file...you would have to burn it to a CD. You could just use memtest86. Either use their USB installer or Rufus with the image in the download.

https://www.memtest86.com/download.htm