Querry about RAM specs

G

grs

Member

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Joined

Apr 3, 2006

Location

Dublin, Ireland

• Feb 21, 2007

• #1

I was wondering what the "4-4-4-12" section in RAM specs is referring to. I used to know ages ago but I've forgotten.

 

largon

Member

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Joined

Apr 3, 2005

Location

Suomi Finland

• Feb 21, 2007

• #2

tCAS (Column Address Strobe)
-
tRCD (RAS-to-CAS delay)
-
tRP (Row Precharge)
-
tRAS (Row Address Strobe)

4 most important latencies for DRAM, also known as "Alpha timings".
Real-world effect on performance is minimal but benchmarks are often very dependant on RAM latencies.
Lower is better.

 

OP

G

grs

Member

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Joined

Apr 3, 2006

Location

Dublin, Ireland

• Feb 21, 2007

• Thread Starter
• #3

Now I know what each represent I can look into them further.
Thanks

 

Yellowbeard XMS

Official Corsair Tech Support

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Joined

Oct 21, 2004

• Feb 21, 2007

• #4

I would not take everything in the first link below as 100% accurate but, they do a good job of explaining RAM functions. The 2nd link is useful also.

www.rojakpot.com - Find the Bios Optimization Guide

http://www.corsairmemory.com/corsair/products/tech/memory_basics/153707/index.html