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need help with memory settings


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Have had system instability problems since soon after system build. System will work fine then randomly reboot or lock up. Sometimes will reboot several times before winxp sp2 loads successfully. Have noticed that LEDs on 1 stick usually off the other all lit when locked up.

Put bios back to all default auto settings, ran memtest86 v3.2 got several hundred errors with memory in slots 1&2 or 3&4 at 200MHz. Got 0 to 1 errors with memory in slots 1 and 3 in 2-3 passes at 167MHz. Tried each stick in slots 1 and 3, got 30-40 errors after 2 passes in all configs at 200 MHz. Trying slots 2 or 4 separately doesn't work. Increasing voltage to 2.75v decreases memtest errors from hundreds to few but doesn't prevent lockups. First athlon system, swimming in unknown waters here. What are optimal settings or ideas to rule out memory problems?


MSI K8N Neo2 Platinum v1.0 bios v1.4


Athlon64 3500+

BFG6800 OC

2x120 IBM HD

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  • Corsair Employee

Please install the modules in slots 1-2 and then load setup defaults in the bios setup and set these settings manually and test the modules one at a time.

Dim Voltage to +2.8 Volts:

CAS Latency CL=2.0

Row Cycle Time tRC Bios Default

Row Refresh Cyc Time tRFC Bios Default

Ras# to CAS# delay tRCD 3

Row to Row delay Bios Default

Min Ras# Active Time tRAS 5

Row Precharge Time tRP 2

Write Recovery Time Bios Default

Write to Read delay Bios Default

Read to Write Delay Bios Default

Refresh Period tREF Bios Default

Enable 2T Timing Disabled

Then test the system with http://www.memtest.org and make sure it's stable! If you have problems, I would set Enable 2T Timings to AUTO and test it again!

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The suggestions seemed to have worked. 5+ passes with memtest no errors and no crashes ripping music or gaming. There was no option to disable 2T timing so I set it to 2T. Are these the suggested settings to keep? Thanks for your help.
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