I have an Asus A7N8X-X motherboard with a Sempron 2200 cpu and 512MB ddr400 by A-DATA.
My problem is, that when going to extremes the computer shuts down, i.e. running memtest and "hot cpu tester pro". I changed the memory with 512MB ddr 400 elixir and the problem still occured.
Afterward I changed the cpu with an Athlon XP 2800+ and everything worked fine. I put the sempron into an Epox EP-8RDA3I and it also worked fine. the only problem is when the sempron is connected to the Asus board. I tried anything I can think of including clearing the cmos and trying all the setttings over and over.
to me - roughly equals 1.49GHz so that can't be the problem.
Back to the drawing board - should mention that the Asus Board I've put the Sempron in has a VIA chipset. Also have same board as you, but that's running XP2400 with no problems - also set 166 and running 1.97GHz - 2.00GHZ depending on how Windows feels.
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