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What the hell.. am I crazy?

I

iam4u2nv

Senior member
I have a Soyo sytem board.. the Soyo KT333 Dragon Ultra Platinum. I love this board but I have a problem. The board will only run at 100mhz front side bus. I have Athlon XP2100 in it right now. It will boot at 15 and 100 but will not boot at all at 15 and 133. The system will not even post at 133.
I have tried 3 different sticks of ram and no luck. I am out of ideas. Has anyone ever dealt with this before. I can not believe the proc will not boot at its default setting.
Thanks
Scott
 
By "15," do you mean a multiplier of 15? 15 x 100MHz = 1500MHz and 15 x 133MHz = 1995MHz. The CPU is intended to run at 13 x 133 = 1730MHz. Could be it just doesn't run at 1995MHz... that would be 2400+ level.
 
You are right... the bios called it 1500 which I now see it an XP1500 it is running now at 13 and 100 and will not boot at all at 13 and 133. Will not even post. This is the second chip I have tried... I had a 1800 which also would not post at 133 fsb.
Thanks
 
What do you have the CPU-to-memory ratio set for? If that's set 3:4 then you are asking the RAM to run at 166MHz when the CPU is at 133MHz, which might be more than your RAM will do if it happens to be PC2100. Set the ratio for 1:1, if that's the case.
 
Another possible problem would be an inadequate power supply. There are lots of junky over-rated "400W" power supplies, for instance. When the price ranges from $12 to $100, you know something's got to give on the cheap ones! 😉
 
Actually, 3:4 on 133MHz would be a RAM speed of 133*4/3 = ~44*4 = 176MHz, which would overclock PC2700 RAM even.
 
I got it man.. I actually found the answer on a review of this board. The reviewer had the same troubles. This board has some weird fan option that checks your CPU fan status before it will let it boot. I had to use my old volcano.. boot it at 100 mhz.. disable the power on feature and then put the new heatsink on.. the vantek copper. Weird man.. real weird.
Thanks for the input.
Scott
 
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