Memtest86 how long does it take to run

Memtest will only prove that your RAM has issues, but it will not prove that it does not have issues even after 10 hours of tests. Even if you run the test times you can not be sure that it would not spit out an error after the th run. And she also believes 8 hrs is good enough but I'd add: so long as at least 3 passes are achieved during this time --if not, keep going until you get at least 3 passes :.

I will be running it overnight, so that will be about 8 hours. If you want to be as sure as practically possible, I'd say let it run overnight. If you don't get any errors after 8 hours of intense searching for errors, then it's pretty safe to say they are fine. Given that, after one pass, it displays Pass complete, no errors, press Esc to exit , I always assumed that's sufficient.

Reason is - memtest does not just test memory. It will error out in three other important cases:. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. How many passes are enough with Memtest? Ask Question. Asked 8 years, 9 months ago. Active 1 year, 2 months ago. Viewed k times. What if it is a motherboard or CPU issue? How do I know without getting a new motherboard?

System Specifications: Memory: 2. Improve this question. TFM 4, 2 2 gold badges 29 29 silver badges 37 37 bronze badges. Question Overflow Question Overflow 1, 3 3 gold badges 12 12 silver badges 24 24 bronze badges. You've probably gotten this figured out by now, but next time take a look at the kernel log on Linux after it hangs. That will give you an idea of what is going on.

CarComp: Please post the failed memtest results. Add a comment. Active Oldest Votes. Testing can not prove the absence of bugs, only their presence Memtest is great for finding errors in RAM.

The longer it takes to find the issue, the more subtle it is and the less likely it is the cause a problem with your PC but you should still get new ram if you get even one error As the your computer is crashing quite frequently and you have run a few passes, It's probably not your RAM. Improve this answer. David David 8, 2 2 gold badges 22 22 silver badges 38 38 bronze badges. I suggest to try to clean the RAMs and socket and test them again first use isopropyl alcohol; made positive experience with disinfection spray as replacement; But don't spray the latter one directly onto RAM - only onto the cloth as it shall only serve as resolvant and will eventually leave some residues when used in too high amounts — SDwarfs.

So if somebody get at least one error - he'd throw his RAM out, go and buy a new one? Are you sure? Tarasovych: It depends on how important system stability is to you. Overclocking can also cause these errors, but that doesn't mean you should throw out your ram, just reduce overclocking or increase dram voltage in safe range. This is wrong. Show 1 more comment. Jeff Jeff 1 1 silver badge 2 2 bronze badges.

To test for heat related errors, run one instance of memtest per CPU core. Select your performance profile under power management.

For laptops, do not place them onto cooling stands. Let memtest run for 24 hours. If no errors, you dont have issues with the ram. I actually saw errors starting at pass 3. PS: I suggest at least 3 passes. I've seen errors surface on a third pass, I believe due to heat. Same memory for 30 min was "ok". The largest number of passes I have found was in this test: Test 7 [Moving inversions, 32 bit pattern] This is a variation of the moving inversions algorithm that shifts the data pattern left one bit for each successive address.

Results 1 to 3 of 3. Thread: Memtest86 v. Thread Tools Show Printable Version. Memtest86 v. I've been running Memtest on my rig in my sig file for well over a day now to rule out RAM issues with my computer having "sporadic" connectivity with my ISP in another thread.

I ran Memtest straight "out of the box", I didn't configure it or anything. I'm on Test 10, Pass 10, zero Errors so far. How much longer will it run? I know these types of tests take a long time having run similar one about 15 years ago. However here are some general comments. After a while maybe 15min the RAM won't get any hotter. It will reach a stable state, assuming the system fans are working. RAM isn't reliable. There is a level of background errors that occur with all RAM due to things like cosmic rays.

These are typically random events. You might get one after 5min, or might go a few months without one. So it doesn't hurt to repeat the tests sometimes. Too many random errors is likely a hardware fault, or a consistent error at the same address or same bits is likely a hardware fault. The more RAM you have the longer the test will take.

There should be no concern that you are going to wear out your DRAM after 1 or 2 days of testing. DRAM doesn't wear out to any significant degree unlike Flash memory.