[KLUG Hardware] Memtest errors

[Adam Williams]

I'm trying to put together a box out of leftover parts.

I have a generic motherboard,  while not "new" it has never been used. 
The motherboard suppors a 66 or 100MHz bus and PC100 SDRAM.

I have an AMD-K6-300 CPU,  used.

I have two different PC133 DRAM sticks.  One is a PNY certified to work
at 66/100/133, the other is a generic PC133.  

I've tried running the system at 100x3, and 66x4.5,  and the SDRAM at
both 66 and 100.  The CPU's rated voltage is 2.2, which the motherboard
supports.

With either memory stick the system exhibits the same behavior.  I can
also but the stick in either of the two SDRAM banks.

Under memtest (test 5) during 32 bit operations I get ~500 errors within
the first 1Mb of memory.  Under a RH install (either HTTP or NFS) it
reliably gets to the 'loading package list' (the hdlist) file and dies
with a signal 11.  If I boot into rescue mode I can mkfs the disk
partitions, etc... until everything starts to sig 11.

Since I have two different branch new SDRAM sticks that exhibit the same
behavior I really don't think it is bad RAM.  Any recommendations on how
I can narrow it down? (This is the only CPU that matches this
motherboard I have).

I've tried a Matrox Millenium PCI, Matrox Millenium AGP, and a PCI
Trident based card just in case it was the video.