Which is Better Cas 2 or Cas3?

[Schola]

Just as it says, plus what is the difference between the two.

schola

 

[arthurb1]

cas2 = faster the number is the time that the RAM has to wait in between writes and reads, and I believe that it is in ns.

 

[peemo]

Search the BBS for many answers to this question and a few links to some real info on memory:

http://www.aceshardware.com/Spades/read.php?article_id=5000172

http://www.tweakmax.com/html/cas/cas-1.cfm
http://www.tweakmax.com/html/cas/cas-4.cfm

Depends how much you have to spend and how much you intend to overclock.

 

[Ulysses]

Your PC's BIOS setup program has several parameters related to your RAM that have names with things like "CAS" or "RAS", etc., in them. These parameters tell the PC how fast your RAM can or should be addressed.

If you set the most basic of these settings to 3-3-3 your PC will run a little slower than if you set to 2-2--2, since it is taking longer to access the RAM @ 3-3-3. However, if you set the parameters to 2-2-2 your RAM may not be able to operate that fast and may cause crashes, lock ups, or probably won't boot.

RAM that is certified to be "CAS 2" SDRAM is guaranteed to run stably at the 2-2-2 settings at that RAM's defauult speed.

For example, compare:

CAS 222 RAM @ $194:
http:// [url]http://www.mushkin.com/cgi-bin/Mushkin.filereader?3974e2c1001276ea2741cdaa9b0206da+EN/products/990489 [/url]

CAS 333 RAM @ $144:
http:// [url]http://www.mushkin.com/cgi-bin/Mushkin.filereader?3974e2c1001276ea2741cdaa9b0206da+EN/products/990454 [/url]

 

[Goi]

Its not measured in ns, but rather in memory clock cycles. Basically its the number of clock cycles in between a memory read command is issued, and the memory value appears on the bus.