Memory Problem

[one30eight]

My motherboard has 3 banks that can hold up to 768 MB of PC 100 RAM(wow I know). I have had 2 128 MB sticks in there and got a third stick recently. The new stick has 8 small black chips on one side and 2 large on the other. The sticker on it says IFA 128MB PC-100. My other 2 sticks are micron and only have the 8 black chips on one side. When I add the 3rd stick into the motherboard and boot up the PC, it runs for about 2 minutes and then restarts. I pulled the 2 Micron sticks out and left the one new one in and it ran fine. Sisoft sandra labeled the new stick as a kingston PC100 128MB stick. Obviously they are not working together. Can anyone tell me why? All 3 sticks are labeled 100/72 in Sandra

Motherboard

Jabil AMD motherboard [Part #4000594]

AMD-751 (Irongate) CPU to PCI Bridge
Bus(es) ISA AGP PCI USB i2c/SMBus
Front Side Bus Speed 2x 100MHz (200MHz data rate)
Maximum FSB Speed/ Max Memory Speed 2x 100MHz/ 1x 100MHz
Width 64-Bit
IO Queue Depth 8 request(s)

 

[boomerang]

You should tell us what motherboard you have or at the least what chipset it's using.

 

[one30eight]

Thanks...

 

[LeetestUnleet]

Sometimes memory just doesn't work together. You may have a bad stick as well - run memtest through DOS. You could also try reseating all your RAM in different slots - I've had that solve similar problems before. If I reversed 2 sticks, the computer worked fine. It could also be that the motherboard is running the RAM at the preset timings of the original 2 sticks, but the 3rd stick cannot support that speed.

 

[boomerang]

LeetestUnleet summed it up pretty well. I was hoping to find some specifics in regards to your motherboard and memory. Instead I find that there is very little information on it. Not terribly surprising considering it's from a major computer manufacturer.

I googled for Jabil 4000594. Here's the first hit.

 

[one30eight]

Thanks!! I found this on the link you provided.. "This board seems to be sensitive about RAM. We had problems getting it to boot with Kingston 128 MB 16x64 PC100 SDRAM" Which is exactly what the problem stick is... oh well...