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Memtest - Which is best? Other options for testing RAM OC?

post #1 of 4
Thread Starter 
I love overclocking memory, but I hate testing it for stability. Why? Because the only way I know of that works reliably for detecting errors is running one instance per core of MemTest 4.0 on Windows. That's this version right here: http://hcidesign.com/memtest/ (Yes my version is outdated, just saw that).
I run it to 300% on each core, splitting 95% of the free memory between them. This takes many, many hours. I don't test by time different systems can write to memory at different speeds. You just want to make sure that all addresses are checked multiple times as an error may not manifest until after 200% in some cases, which you WILL get system instability, crashes and BSODs from day to day.

If your ram is majorly unstable, simply booting into your OS can cause corruption to any data written that was in memory. Which is everything written. The longer you're in your OS with unstable memory, the more likely this is to occur. By the time you start experiencing issues and realize the cause, it's way too late to save anything. You have to ditch your OS and potentially even some of your files.
Data corruption is no joke.

Even worse is the fact that you can't test the memory in use by the OS! When assuring memory stability you must have a "take no chances" approach. If you cut corners, you'll pay.

WIth that in mind, you'd think testing memory on a bootable drive would be a great idea, and in fact it is! First though, remember that you cannot check stability without running one instance per core.

On every system I have tried to use one of the many bootable versions of memtest with multithreaded options selected I have encountered a freeze, crash, or it simply doesn't work. Some bootable versions don't even support multithreaded testing and are therefore useless when booted.
Within the past one to two years I have tried booting MemTest, Memtest86, and Memtest86+. None worked! mad.gif

I don't trust Prime95 blend as it's not as thorough or methodical as memtest and cannot show a useful output like percentage. That and it tests the CPU at the the same time creating unnecessary heat and power usage.

AIDA64 uses Prime95 for it's stress testing AFAIK (might just be for CPU, correct me if I'm wrong).

So what are my options? I don't want to use this crappy edition of MemTest anymore. It's practically dead at this point. I could try bootable MemTest86 again. It looks like it's actively updated, perhaps they fixed the bugs. But that's not a catch all solution as it reverts to the old Version 4.X when testing on non-UEFI systems.

What I need is an up to date bootable program that is 6- bit, multi threaded capable, and tests RAM as fast as possible so I don't have to wait an hour in between memory tweaks when overclocking, or overnight for verification.
Edited by cookieboyeli - 11/7/15 at 11:51pm
post #2 of 4
Memtest86+ will let you use all of your CPU cores (press F2 at startup and it will do up to 32 threads). Highly recommended.
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post #3 of 4
I use the bench marking tool in Aida. It's really fast and will tell you if you helped or hurt performance.

EDIT: You can also stress with AIDA. CPU, memory, cache, and fpu can be unchecked.
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post #4 of 4
Thread Starter 
Quote:
Originally Posted by Dopamin3 View Post

Memtest86+ will let you use all of your CPU cores (press F2 at startup and it will do up to 32 threads). Highly recommended.

Quote:
Originally Posted by white owl View Post

I use the bench marking tool in Aida. It's really fast and will tell you if you helped or hurt performance.

EDIT: You can also stress with AIDA. CPU, memory, cache, and fpu can be unchecked.
Alright I'll give them both a shot! I haven't tested the latest versions of either. I've recently become a huge fan of AIDA64's memory latency benchmark though. (Though apparently my score is crap... I got smoked).

Me:


Friend:


EDIT: I'm using Samsung Green 30nm aka Wonder Ram. I'm new to it though, I don't know what it can do. This is perfect timing guys as I'm going Z97 Intel tomorrow! thumb.gif
Before I do I'll use some settings I know are unstable and see how these programs do detecting errors. Thanks! I'll let you know how it goes.
Edited by cookieboyeli - 11/9/15 at 8:47pm
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