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Windows 7: RAM - Test with Memtest86+

27 Aug 2011   #60
Thorekong

Windows 7 Ultimate x64
 
 

omg... i'm in my 26 hour running and i'm only at pass number 8 :S

Like
*****Pass complete, no errors,perss Esc to exit***** ?


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28 Aug 2011   #61
Dave76

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

You can stop the test after 7 passes are complete.

RAM - Test with Memtest86+-memtest86-7-passes.png


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28 Aug 2011   #62
maxseven

Windows 7 Home Premium 64bit 6.1 Build 7601 (SP1)
 
 

Quote   Quote: Originally Posted by Thorekong View Post
omg... i'm in my 26 hour running and i'm only at pass number 8 :S

Like
*****Pass complete, no errors,perss Esc to exit***** ?
You're done. Waaayy done. Coulda stopped after pass 0 (one complete).

Congratulations, you have really well-tested, good memory!
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29 Aug 2011   #63
Dave76

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

It's recommended to run a full 7 passes, see the first page.
The same is recommended on many sites, the errors can come on the later passes.

RAM can pass a few full 7 passes of memtest86+, only to have errors on the next pass. This means there is a problem with the RAM.

This is just the way electronics are, fickle at the best of times.
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29 Aug 2011   #64
maxseven

Windows 7 Home Premium 64bit 6.1 Build 7601 (SP1)
 
 

Well I dunno where the "7 passes minimum" comes from; the memtest86.com help info says

Quote:
Memtest86 executes indefinitely. The pass counter increments each time that all of the selected tests have been run. Generally a single pass is sufficient to catch all but the most obscure errors. However, for complete confidence when intermittent errors are suspected testing for a longer period is advised.
So how long you wanna run is up to the discretion of the tester and IMO while "overnight" is prudent if you have a questionable build or "used" memory or something, a single good pass for a brand-new set of DIMMs when you're time-constrained is not imprudent.
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29 Aug 2011   #65
Jonathan_King

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by maxseven View Post
Well I dunno where the "7 passes minimum" comes from; the memtest86.com help info says

Quote:
Memtest86 executes indefinitely. The pass counter increments each time that all of the selected tests have been run. Generally a single pass is sufficient to catch all but the most obscure errors. However, for complete confidence when intermittent errors are suspected testing for a longer period is advised.
So how long you wanna run is up to the discretion of the tester and IMO while "overnight" is prudent if you have a questionable build or "used" memory or something, a single good pass for a brand-new set of DIMMs when you're time-constrained is not imprudent.
Our own personal experiences here on the forums show that it would be imprudent to recommend anything LESS than 7 or 8 passes. When RAM problems are suspected, we should plan on running Memtest for a good long time.

Otherwise, the first pass shows no errors and then the RAM is assumed to be good.
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29 Aug 2011   #66
Wishmaster

Windows 7 Home Premium 64bit
 
 

I would agree 1 pass is usually enough, and you should always let it complete at least 1.

But, I always recommend just setting it up, and let it go overnight.
The only reason is that I have seen some wierd things happen where it would complete 1 pass successfully, yet 1 stick was actually bad.

Its times like this where that bad stick may show up on the 3rd, or maybe even the 4th time time through.

This is however rare to happen in my experience, and 1 pass is usually enough 99% of the time.
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29 Aug 2011   #67
maxseven

Windows 7 Home Premium 64bit 6.1 Build 7601 (SP1)
 
 

I have no problem with 7 passes (for sevenforums?), or 17 passes, if one has had problems or if there is any reason whatsoever to suspect the RAM. I suppose if one is savvy enough to be running Memtest86+ in the first place, having had some reason to suspect the PC hardware, then they should know to leave it run overnight, which for most PCs will be far greater than 7 passes.
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30 Aug 2011   #68
Dave76

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

Just to see if your RAM is ok, of coarse it's up to the individual, if you're having crashes, freezes, and are testing hardware then a more thorough test is needed.

I have seen memtest86+ have no errors for a 'couple' of 7 pass runs, then on another test show many errors.

If you are troubleshooting hardware, be systematic, I have seen RAM issue come up again after many other hardware tests have been run.
The phrase 'but I ran the memory test before and it passed' has been mentioned a lot, many sites including motherboard, RAM, OC'ing, say RAM is the biggest cause of hardware issues.
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17 Sep 2011   #69
surfmore72

win7
 
 

I have a strange problem...(stick 1 in slot 1 ok, stick 2 in slot 2 ok, stick 3 in slot 3 bad...one error in 2 passes, stick 4 in slot 4 ok, stick 4 in slot 3 ok, stick 3 in slot 4 OK?) and then so i put them all in (with stick 3 in slot 4 and tested all 4 at same time for 17 passes(went to work) and no errors. So could it be that moving the stick "fixed" the problem from occurring? is my 3rd stick bad or could it just be tolerances are so close that just the combo of stick 3 and slot 3 causes errors. Ordered parts a month ago from tiger and dont know if they will take them back?? Thank you for your time
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 RAM - Test with Memtest86+




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