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Re: Exhaustive memory test for Macs?



On Wed, Apr 11, 2001 at 02:28:57AM -0400, Michael D. Crawford wrote:
> I'm buying a new DIMM for my Mac 8500, and would like to give it a
> thorough test when it arrives in a couple days.  It wouldn't be a bad
> idea to test the memory I've got before I install the new DIMM, as it is
> old and has been in heavy use for years.

stick it in a G4 with apple's recent firmware update ;-)

> I used memtest86 on a 128 MB PC133 memory module in my PC and it fails
> the test, although it passes the BIOS startup memory test.  I'd like

you could wire up a dead rat to a dimm socket and the PC BIOS memory
test would pass it just fine. 

> something like that for PowerPC Macs.
> 
> Memtest86 is in the format of an x86 Linux kernel, you can boot of it
> with lilo or GNU GRUB or make a boot floppy out of it.  The best test
> for a Mac would do something like that.  Alternatively, maybe Apple has
> a memory test tool that one can get?
> 
> Do you know of such a beast?

unfortunatly i think no such thing exists, it would be possible to
make something like memtest86 for powerpcs i think it would just have
to be an OpenFirmware coff executable (or i suppose ELF if you have a
newworld) you would then stick it on a dos floppy for oldworlds or
stick it in the bootstrap partition on a newworld.  then boot it
directly from OF.

-- 
Ethan Benson
http://www.alaska.net/~erbenson/

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