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Dual Channel Memory error?

J

jumpingjack

n00b
Joined
Oct 25, 2004
Messages
3
When running my system in 333FSB, my system is suddenly turning off when stressed, usually with 3D apps/games. I tested my memory systematically and I seem to have dual channel errors.

* AMD XP2600+ Barton CPU
* 3x 256MB PC2700 Crucial RAM.
* Asus A7N8X Deluxe mobo (v1.04). BIOS 1008.

My test procedures:

- I ran each of my 3x RAM sticks individually in each slot. No errors in all cases. Conclusion: RAM is good. Slots are good.

- I ran 2x RAM sticks at a time in Slot1 & Slot2 (so it's single channel) and I got no errors. I alternated the sticks in this config, no errors in all cases. Conclusion: RAM is good. Single channel memory system is good.

- I ran 2x RAM sticks in Slot1 & Slot3 and I'm getting errors (40+) in LRAND & Strike6. Conclusion: RAM is good. Dual channel memory is bad.

So, it seems dual channel is failing at 333FSB. Should my conclusion be: bad motherboard? Send it in for warranty replacement? When I run at 266FSB, I get no errors. But I paid for 333FSB, not 266FSB.


Is there a diagnostic tool to check the motherboard? Has anyone had this problem? Advice?
thanks
 
Try just running with RAM in slot 3. then you will know if the slot is bad or not.

and with a Athlon XP single vs dual channel doesn't make a significant difference.

==>Lazn
 
Lazn_Work said:
Try just running with RAM in slot 3. then you will know if the slot is bad or not.

and with a Athlon XP single vs dual channel doesn't make a significant difference.

==>Lazn
Click to expand...

Read carefully, I've already done this. The slots are fine.


Can someone run a diagnostic on their memory using dual channel. Are errors in dual channel mode normal?
 
Don't forget to take a look at the PSU. Many obscure issues are caused by voltage problems.
 
jumpingjack said:
Read carefully, I've already done this. The slots are fine.


Can someone run a diagnostic on their memory using dual channel. Are errors in dual channel mode normal?
Click to expand...

I missed that. (you mentioned slot 1&2 and 1&3, but not 3 by itself)

No, errors are not normal.

Try changing the timings, say CAS 3 instead of 2 and see if they will work at the higher speeds.

==>Lazn
 
Also, make sure that the RAM stick match up. Different chips on the sticks, or even different models can cause dual-channel errors.
 
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