Mac Pro Memory - Stress Testing?

stillentt

macrumors newbie
Original poster
Aug 15, 2006
4
0
I just got in my Mac Pro and ordered some memory(2x512) from crucial that has some standard size heat sinks covering the board and put them in with the OEM Apple memory (2x512's) and it seems to be running fine.

I have no noise or acoustic differences, and dont notice any instability all. I have run MemtestOSX and opened all programs at once and have looped memtest for 24hours with no hiccups...

With that being said, does anyone have any recommendations for how i could totally slam the system resources for an elongated period causing the computer to work its hardest and possibly cause instability? I would like to find out if this memory is TRULY going to be stable NOW instead of getting deep into a project and having it crash... If this all checks out then why not just buy 4 for more of the standard Fully Buffered Dimms instead of shelling out cash for these unneccasary Apple Certified modules...?

If anyone has any ideas let me know...

Thanks,
Scott
 

Mr. Mister

macrumors 6502
Feb 15, 2006
440
0
I'd suggest running as many heavy-duty apps doing hardcore tasks such as rendering HD at once and then hide them and do normal stuff on top of it and see if those normal apps are more prone to crashing, ie, Safari, Finder, etc.
 

Grimace

macrumors 68040
Feb 17, 2003
3,541
35
with Hamburglar.
stillentt said:
I just got in my Mac Pro and ordered some memory(2x512) from crucial that has some standard size heat sinks covering the board and put them in with the OEM Apple memory (2x512's) and it seems to be running fine.
If this all checks out then why not just buy 4 for more of the standard Fully Buffered Dimms instead of shelling out cash for these unneccasary Apple Certified modules...?
Crucial did yank its Mac Pro RAM b/c it wasn't performing properly...:rolleyes:
 

stillentt

macrumors newbie
Original poster
Aug 15, 2006
4
0
i got the memory before they 'yanked' everything off of their site. I know that i probably SHOULD return the Ram and purchased some approved memory but this stuff is working fine and it was way cheaper than the stuff from Apple or the Approved stuff from OWC.

I heard of people having Soft ECC errors on forums but i haven't recieved any issues at all.

I know could render up HD material and do manual processes to stress the machine, but i would like to run some kind of loop and let it run for 24,48,72 hours and see if it crashes....

I figure, worst case, it blows up, i return it to apple.
 

Grimace

macrumors 68040
Feb 17, 2003
3,541
35
with Hamburglar.
stillentt said:
i got the memory before they 'yanked' everything off of their site. I know that i probably SHOULD return the Ram and purchased some approved memory but this stuff is working fine and it was way cheaper than the stuff from Apple or the Approved stuff from OWC.

I heard of people having Soft ECC errors on forums but i haven't recieved any issues at all.

I know could render up HD material and do manual processes to stress the machine, but i would like to run some kind of loop and let it run for 24,48,72 hours and see if it crashes....

I figure, worst case, it blows up, i return it to apple.
If bad RAM fries something on your computer -- it is NOT covered by AppleCare. As in, if it goes bad, Apple isn't going to help or cover the cost of repair.
 

stillentt

macrumors newbie
Original poster
Aug 15, 2006
4
0
MemtestOSX bascially runs the same patterns as Memtest86 and i have run it for 12hrs straight and it made it through 38 loops with no problems...

I have the cover off of the Mac to see if it gets any hotter and the temperaure of the modules (using an infrared Thermometer) is only a few degrees different between the OEM memory and the NON-OEM.
 

Sun Baked

macrumors G5
May 19, 2002
14,874
57
stillentt said:
MemtestOSX bascially runs the same patterns as Memtest86 and i have run it for 12hrs straight and it made it through 38 loops with no problems...

I have the cover off of the Mac to see if it gets any hotter and the temperaure of the modules (using an infrared Thermometer) is only a few degrees different between the OEM memory and the NON-OEM.
You testing the RAM or the Advanced Memory Buffer chip?
 

kbonnel

macrumors 6502
Mar 1, 2004
469
0
In a nice place..
carletonmusic said:
If bad RAM fries something on your computer -- it is NOT covered by AppleCare. As in, if it goes bad, Apple isn't going to help or cover the cost of repair.
Yea, but apple does not say that you cannot use 3rd party ram, their only warning is that if you get the same spec memory (which they provide the specs) but don't get one with the huge heatsink, then the system "may" run lounder, or the ram "may" run slower. Nothing about their being an issue with 3rd party ram killing your system :)

I think alot of us are still thinking of the good old days with Apple designed motherboards. Now with the use of an Intel board, I think the use of properly speced memory will be fine.

Kimo