Ram Problems on KT3 Ultra2

Hi every one,
Everything worked fine on my KT3 Ultra2, but one day my system started to have random crashes, the ones typical of Ram problems. I tested my memory sticks (2 Kingston 256Mo sticks) and they're fine.
I tried switching memory sticks, and it appears that whenever a memory stick is placed in the second mainboard memory bank, these crashes happen. If i place memory sticks in banks 1 and 3, everything works fine.
I want to add memory to my system, but i can't with that apparently malfunctioning memory bank.
My system:
AthlonXP 2000+
2x 256Mo DDR266 Kingston
my power supply specs:
350W
+12V 17A
+5V 35A
+3.3V 14A
I know these are not very good specs for a power supply, but as i said, I haven't changed anything in my system, and the problem appeared suddenly, so...
Can someone help me?  

Quote
Originally posted by Toenne
Quote
I tried 3 different 512 Mo PC2100 memory sticks (all 3 branded: seitec, infineon and kingston) and my system never worked fine with them.
Try to increase the ddram-voltage to 2.7V, does it work now?
No it doesn't work  
BTW, i run W2000 SP4.

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    Quote
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    Quote
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    Quote
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    Quote
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    Quote
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