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Rember is a front-end GUI to the 'memtest' command line memory testing program. This application will allow the user to select the number of test loops, as well as the amount of memory to test. There is a 'Log' tab that will allow the user to monitor memory testing. The user can toggle a 'verbose' switch to limit the amount of output.The user can choose to quit Finder and other applications.

Defective memory can cause computers to malfunction, crash, and behave in a variety of ways which can sometimes baffle end users and computer technicians alike. Apple provides hardware test CDs with most of their products, and there more...

What's New

Version 0.3.7b: Release notes were unavailable when this listing was updated.

Requirements

Mac OS X 10.5 or later

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Rember User Discussion

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Lundberg Member IconReview+1
Lundberg
+1

Easy to use. Can find RAM problems that Apples own software can't.

Reply0 replies
Version 0.3.7b
Noivad Member IconReview+131
Noivad
+3

OWC directed me to use this app after I purchased memory that turned out to be defective. 8GBs took a lot time to go through, but having the diagnostic made exchanging the RAM painless. OWC is great anyway. Since Rember is free, doing what it needs to and getting out fast, I have to give it 5 stars overall even though it looks ugly (which is fine—even preferable to a pretty app that uses more RAM than it needs to.)

If I could add one feature, it would be a loop completion estimate and a total test time estimate. (i.e. “Estimated Total Time: xx:xx” “Time Elapsed: xx:xx” “Estimated Loop Time: xx:xx” “Current Loop Elapsed Time: xx:xx”) This would save everyone who uses this app from having to come back and check every 15 minutes on tests that can take hours.

To the Dev: Thanks for making this app, it does just what it needs to do. You might want to mention that multiple loops will make it so all memory is tested (if the comment below is true) and offer people the option to quite all apps and even the Finder temporarily to free up RAM.

Reply0 replies
Version 0.3.7b
ovizii Member IconReview-5
ovizii
+0

It should be made clear that this app can only test the RAM that is free when it is executed. I need to check if my RAM is defective but this tool only checks the RAM that is free so basically this app is not suited for this test.

Please feel free to correct me if I am missing something here.

Reply1 reply
Version 0.3.7b
Noraa
+2

There is no app that can test RAM that is currently being used by another program - it's just not technically possible. Seems disingenuous to give this program such a low rating based your misunderstandings.

aspilian Member IconComment+0
aspilian
+0

hi,

in the last 5 months, my iMac (i5, 3.6 GHz, 4x2 GB RAM) four times died, beeping like Apple describes in
http://support.apple.com/kb/HT2538
(3 successive tones, a 5-second pause, 3 successive tones -- RAM does not pass data integrity check)

First time I thought corrupt video/cut data were causing the crahs, but not for crash no. 3 and 4.

I let Rember do 8 loops of checking all my memory, with a result that no errors could be found.
Apple Hardware Tests also say that my hardware is okay.

Can you give me a hint how to try to find out what's causing these crashes?

I removed all the RAM and put it back using different slots. Maybe one module was loose??? Don't know...

Reply0 replies
Version 0.3.7b
Zackinthebox Member IconComment+0
Zackinthebox
+0

I've got 8 GB of ram installed on a new 2011 i5 iMac but the test log shows that it's only checking 6331 MB. Is this normal? I've clicked the option to allocate all ram for testing. The pop-up window that comes up when you launch Rember shows that I have 4 x 2 GB sticks with green lights next to all of them.

Reply0 replies
Version 0.3.7b
Mitch_de Member IconComment+169
Mitch_de
+0

Thanks for updating the unique+good memory test app !
HINT: PPC User should first try 100MB (not all available ram) to see how much time your whole RAM (500M++) needs. On fast Intel Macs you get an speed from 20-35 Minutes for 2 GB RAM (=3 GB installed). PPC G4 will take > 30 Min for 500MB!!

Reply1 reply
Version 0.3.7b
Bernak
+0

Just to update with another system:
- MacBookPro 6,2 (i7 2.66GHz) took 53 min for 6713MB (all available; total 8GB).

Thanks for this app, very useful if you update memory imho.

MicG Member IconReview+37
MicG
+2

0.3.4b Worked flawlessly on my G4.
Nice output and simple.

If you buy new RAM or used this is the utility to have installed to test
it. Don't waste time with RAM when you buy it, test it ASAP and get
your $'s worth. I've been fortunate to never have had defective RAM, and
testing it just confirms it. I'm happy.

Reply0 replies
Version 0.3.5b
some1 Member IconComment+0
some1
+0

Why does my CPU temp shoot over 125 C (according to iStat Pro and SMC Fan Control) when running the memory test? This can't be safe! I have a Macbook Pro running Leopard 10.5.4.

Reply1 reply
Version 0.3.4b
Kelley Computing (Developer)
+1

When processor activity is high, the temperature of the processor increases. This is normal behavior in all computer processors. If a cooling mechanism in your computer fails, the temperature increase may be problematic, but for most machines the increase in temperature should be harmless.

Racer27x Member IconReview+1
Racer27x
+0

I really appreciate Rember. I got me out of, what seemed like, a hopeless problem with my Mac.

Reply0 replies
Version 0.3.4b
mac adam Member IconComment+154
mac adam
+0

When I test all memory, "NOTE: Memory request is too large, reducing to acceptable value...", I have a error in Block Sequential ?

No Error when I test less memory…

Is it a Bug or my memory ?

Reply0 replies
Version 0.3.4b
user icon+112
piquadratpi2
Version 0.3.7b
user icon+0
Jae_e3cb839a
Version 0.3.7b
> 4 9

Ratings

Overall
(9)
Current Version (0.x)
(9)

Details

Downloads 111,628
Version Downloads 67,353
Type Utilities / System
License Free
Date 03 May 2010
Platform Intel 64 / OS X / PPC 32 / Intel 32 / PPC 64
Price Free
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