I thought RAM was bad but it turns out it was the RAM motherboard slot

It took me a while to figure this out. For system below, memtest starts spitting out multiple errors within 10 minutes.


I test one stick and I test the other but for an hour each all's well, I test them together next to each other all's well again. Only when I run them in dual channel in 1st and 3rd slot, that's when memtest lights up red.

But if I run the sticks in DIMM 2 and DIMM 3 and leave DIMM 1 empty - no problem.

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AMD Athlon XP 2500+ AXMH 2500 FQQ4C
IQYHA 0348 SPMW
2 x 512MB Centon PC3200 (Samsung chips) @ 9 4 4 3
[200] FSB x 12.5 = 2500 MHz @ 1.87 Vcore with memory frequency at 100% [200 FSB] @ 2.90 Vdimm and 1.6 Vdd
nForce2 Epox 8RDA3+ v2.1, BIOS 07/29/2004
Thermalright SLK-900A with 80x38mm Delta EFB0812HHE fan
GeForce 6800; Antec SX-835II case ; 500W OCZ StealthXStream OCZ500SXS
Five 80x25mm Case Fans

what no i7 rig now? what happened to it go boom! when you oc it?

It's my old rig passed on to my offspring

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Intel i7 920 [211] BCLK x 19 = 4.0 GHz @ [1.4000] CPU Voltage & [1.35000] QPI/DRAM Uncore Voltage, Batch 3836A394
3 x 1GB G.SKIL DDR3 1333 (PC3 10666) [DDR3-1691MHz] 10-10-10-24 @ 1.64 DRAM Bus Voltage
ASUS P6T Deluxe v.1 [LGA 1366 Intel X58] BIOS 1102
Thermalright Ultra-120 eXtreme 1366 RT with 120mm Scythe S-Flex F fan
ASUS EAH4850 TOP Radeon HD 4850 512MB @ 680 MHz GPU & 2100 MHz Memory
Antec nine hundred case, two front 120mm fans, one back 120mm Fan, one top 200mm fan
Corsair CMPSU-750TX 750W

had that before - could be a dry weld on the back of the board (the flexing created from messing about putting sticks in and out all the time destoys the solder points)

if you have a soldering iron you can just run it down them see if it makes any difference - may just be tired out of tolerance components.

just a thought from old board hassle - could be none of the above.