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memory timings????

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Last response: in Memory
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April 30, 2003 6:20:27 AM

im think aboiut buying new memory. I have the SINXP which says it supports ddr400, bu ti heard ppl have bad luck with that in there.

so what does all the 2-2-2-5 really mean? do those number somehow determin speed? is 2-2-2-5 pc 2700 better than 2-3-3-7 pc 3200?

im looking at 2x512mb sticks of the Corsair XMS pc 3200 2-2-2-5-1t models... are these recomended or what is teh best out there?

best bios error...."no keyboard detected.... press F1 to continue....."

More about : memory timings

April 30, 2003 3:59:04 PM

Frequency speed is still the main driver of the overall speed of a read/write cycle.

200MHz is technically ~20% faster than 166.667MHz based on the frequencies alone. The real world does not see that high of a return.

However timings are important but not as important as the clock speeds.

The different timings are...

tCAS = Time for the Column Access Strobe

tRCD = Time RAS to CAS Delay

tRP = Time RAS Precharge

tRC = Time for a cycle, random read or write; It equals tRAS + tRP


2:2:2:5 = tCAS : tRDC : tRP : tRC

The lower the rating on each latency timing the better the memory is.



Corsair XMS modules are a good memory to choose for DDR400/PC3200.



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April 30, 2003 7:54:04 PM

thanks
i think ill pick that up soon... cept like 280 from newegg :( 

best bios error...."no keyboard detected.... press F1 to continue....."
!