memtest86

[JeffCos]

Just upgraded from 512 to 1mb of ram and decided to run memtest on my system. Runs through the first and second tests ok, but then freezes. I ran the floppy version. Anyone know what this means or have a resource to find the problem.

Test 3: Freezes immediately
Test 7: Freezes @ 67%

 

[pm]

Which version? And it's freezing on the third test? Which part?

 

[JeffCos]

test 3 freezes immediately, test 7 freezees 67% through pass 1 and test 8 froze, but i don't remember when.

 

[pm]

I've been working my way through the code for memtest86+ v1.65 - I added a smidgen of code to enable 975X support and have been looking at a couple of the issues that I found.

Which version are you using? v1.65 from this site? http://www.memtest.org/

A few more details, if you please: which chipset, which motherboard model, which memory type/freq/manufacturer, what voltage on the memory? Are you overclocking? Is the memory settings in the BIOS set to auto from the SPD, or are you setting it manually?

Test 3 is an 8-bit memory inversions pattern - essentially walks an 8-bit "1" through memory. It catches "wide" errors - as opposed to single bit errors. A single bit error is often associated with a manufacturer problem, but if you pass test #2 (a single bit walking inversion), then a "wide" memory problem would often associated with memory timings or voltage issues.

 

[JeffCos]

It's a P4 2.66 on an intel 845gebvl board, two 512 sticks of crucial pc2700. All timings are stock.

 

[pm]

The memory and board appear compatible... hmmm...

Does the test pass with one stick, and fail with the other? If you remove one stick and test them each one at a time, does the error follow one stick? If so, it's a bad DIMM and I'd return it for a replacement.

 

[JeffCos]

it's weird, it doesn't display as an error in the prog. it just freezes and becomes unresponsive. I don't know whether that's an actual error or just a glitch in the matrix um...program.