What are ALU and FPU, and some other memory questions

[mikef208]

When iset my memory timing to ultra it only increased my FPU, my ALU actually dropped a point, so i was wondering how they are figured. Also what should i set all the memory things to in the BIOS of my ECSK7S5A. Like I said I am set to ultra now, I will try 2T for the CAS, it's the next one, RAS maybe?, that i don't know what the best setting for it is.

 

[serialb]

ALU

FPU

 

[pm]

FPU is Floating Point Unit - and in your usage means floating-point code
ALU is Arithmetic Logic Unit - and in your usage means integer code

I presume that these are SiSMark Sandra scores take from their CPU test. Are they repeatable like this? What the absolute numbers, and what are the differences as a percentage of those numbers? I find it hard to picture a situation in which increasing memory performance results in lower scores.

 

[mikef208]

These are Sandra scores, but taken from the memory bench not the CPU bench. My scores seem reproducable at ALU325 FPU407, then ALU325 FPU410, but the first time i ran the test after switching the timeing to ultra the scores were ALU365 FPU 456, so they have gone down. But that test was ran right after a reboot would that make a differance.

 

[mikef208]

Pumped the cas up to 2 and got ALU370, FPU470
Put all the memory settings to thier max(which i am surprised is actually working since I have a stick of Micron PC100 that is now running 133Mhz at the best timings) got these scores ALU371, FPU473.
Then I thought to myself,"how much does memory depend on the CPU speed, so I pumped my duron 650 up to 133MhzFSB so it's effectively running 866Mhz ALU527, FPU581, dang!!!