[SOLVED] Run Memtest86 in Win10?

[ManOfArc]

Is there any way to run Memtest86 in Windows? I want to stress test a memory OC, but the bootable Memtest86 reverts to stock memory speed for its test.

 

[kanewolf]

Is there any way to run Memtest86 in Windows? I want to stress test a memory OC, but the bootable Memtest86 reverts to stock memory speed for its test.

Is the overclock being done in the BIOS? That should be independent of Windows.
There is no way to run MEMTEST in Windows that I know. It has to be bootable.

 

[ManOfArc]

Sorry for the late reply. No internet for a while. Yes, the OC is done in BIOS. I set DDR4 3000 MHz RAM to 3200MHz ( I know, not much difference), but memtest reports 3000MHz when it runs.

 

[kanewolf]

Sorry for the late reply. No internet for a while. Yes, the OC is done in BIOS. I set DDR4 3000 MHz RAM to 3200MHz ( I know, not much difference), but memtest reports 3000MHz when it runs.

It is possible the motherboard won't support it. I am not an overclocker, especially not beyond manufacturer's recommendations. I am not terribly qualified to assist much more.

 

[Third-Eye]

Sorry for the late reply. No internet for a while. Yes, the OC is done in BIOS. I set DDR4 3000 MHz RAM to 3200MHz ( I know, not much difference), but memtest reports 3000MHz when it runs.

What other settings did you change? Did you increase voltage or change timings?

 

[ManOfArc]

What other settings did you change? Did you increase voltage or change timings?

Nope, just clicked on 3200 in the BIOS options. The system is stable in Win10 at 3200, that's not the problem. It's memtest that won't use the 3200MHz setting when it runs. Defaults to the RAM's SPD of 3000MHZ .

 

[Third-Eye]

Nope, just clicked on 3200 in the BIOS options. The system is stable in Win10 at 3200, that's not the problem. It's memtest that won't use the 3200MHz setting when it runs. Defaults to the RAM's SPD of 3000MHZ .

Memory testing programs don't change the speed of the ram, because that is controlled by the motherboard. If the speed is 3000 in the memory test, it means the overclock failed and went back to previously working settings. You need to actually set the speed, timing and voltage or 3200 won't work. When you set 3200, try settings cas latency to 14 or 16 and voltage to 1.35v.

Post your system specs including the CPU, motherboard, memory brand and model number. There is a chance that your parts are to blame for why 3200 doesn't work.

 

[ManOfArc]

Memory testing programs don't change the speed of the ram, because that is controlled by the motherboard. If the speed is 3000 in the memory test, it means the overclock failed and went back to previously working settings. You need to actually set the speed, timing and voltage or 3200 won't work. When you set 3200, try settings cas latency to 14 or 16 and voltage to 1.35v.

Post your system specs including the CPU, motherboard, memory brand and model number. There is a chance that your parts are to blame for why 3200 doesn't work.

I just said that the 200MHz RAM OC is stable. I have run stress test and tens of hours of games in W10 with the RAM at 3200MHz. It's just memtest that "resets" the speed back to 3000MHz somehow before it runs. Or at least that is what it is reporting.

Now, it is possible that memtest is just reading the original default SPD of the RAM and erroneously reporting 3000MHz, when it is actually at 3200MHz. That is what I kinda suspect. I just don't know how to prove it.
OLOy DDR4 (2x8GB) 3000 MHz (MD4U083016BJDA)
Ryzen 5 3400g
Asus Prime A320M-K
RX 5500 XT
EVGA 500 W1

 

[Third-Eye]

I just said that the 200MHz RAM OC is stable.

How do you actually know it's running at 3200 when the memory tester is reporting 3000? What have you used to check that it's actually 3200MT/s (1600Mhz)?

 

[ManOfArc]

How do you actually know it's running at 3200 when the memory tester is reporting 3000? What have you used to check that it's actually 3200MT/s (1600Mhz)?

That is what the UEFI/BIOS reports, and that is what CPU-Z reports... to think of a couple off the top of my head.

 

[drivinfast247]

If it's completely stable in Windows why are you worrying yourself about running Memtest?

 

[ManOfArc]

If it's completely stable in Windows why are you worrying yourself about running Memtest?

I was thinking that would be a more stressful test than just my daily usage up to this point. Not really necessary, I suppose.
But when I saw that memtest would not report its true speed, I got curious. That's why I came here.

 

[Third-Eye]

That is what the UEFI/BIOS reports, and that is what CPU-Z reports... to think of a couple off the top of my head.

I just wanted to confirm, because memtest86 only reports the SPD information from the modules and not the currently set speed of the modules. I didn't mean for it to seem rude incase it did.

 

[scout_03]

what ram speed yoou read in bios also use cpu-z spd and memory tab to check speed you could post a picture of bios and cpu-z readings here .

 

[ManOfArc]

what ram speed yoou read in bios also use cpu-z spd and memory tab to check speed you could post a picture of bios and cpu-z readings here .

 

[scout_03]

your ram run at 3200 mgz so it is overclock to max keep it this way since max jedec is only 3000 mgz dont try to go over or system might not boot .

 

[ManOfArc]

So then guys... can I assume that memtest will be running its memory stress test at 3200MHz even though it is only reporting 3000MHz?

 

[ManOfArc]

Btw... Ryzen Master also confirms that the RAM is at 3200MHz.

 

[scout_03]

then your ok it is at 3200 mhz .