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  FSB speeds on K7S5A??? 
 Date Written 
Adam Curry Mar 12, 2002, 06:05pm EST Report Abuse
Hey, I'm having a bit of an issue with my motherboard. I have a T-Bird 1.13 ghz cpu on it, and it is able to run at a 266 bus speed. I wanted to get a faster bus with new ddr ram (PC2100), because I knew it auto detected the ram. When I installed the ddr ram PC2100), the bus speed stayed the same, even after I cleared the cmos settings and tried again. All I have is 100 or 133. I contacted the place I got my computer and they said that that was what it was supposed to do, just the bandwidth would double. So pc1600 would run double at 100 and 2100 would double at 133. Is this saying that information is getting thrown around my computer ata faster rate? And also, how can this problem be remedied? I'm computer savy, so please get as technical as you want in helping me here. Thanks!

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David Mule` Mar 12, 2002, 09:56pm EST Report Abuse
>> Re: FSB speeds on K7S5A???

David Mule` Mar 12, 2002, 10:01pm EST Report Abuse
>> Re: FSB speeds on K7S5A???
sorry about that mistake. ECS is right. It is a marketing tool to sell ram, they say that pc2100 runs at 266, but it runs at 133. It doubles the rate if information hence doubles 133.

Adam Curry Mar 12, 2002, 10:21pm EST Report Abuse
>> Re: FSB speeds on K7S5A???
Well yes but if the bus speed is still 133, does that mean that it is sent faster, or just more of it?

DaveO Mar 13, 2002, 08:58am EST Report Abuse
>> Re: FSB speeds on K7S5A???
The FSB speed will remain at 133MHz when running with PC2100, this is the standard setting for an Athlon. DDR memory transfers data twice per clock cycle, once on the rise and once on the fall of the signal, making it effectively 266MHz, as I'm sure those links above probably explained. So while running synchronously with the FSB clock, DDR will have twice the bandwidth of SDR (PC133).

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