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CAS Latency compatablility? Frequency???

This is a discussion on CAS Latency compatablility? Frequency??? within the RAM and Power Supply Support forums, part of the Tech Support Forum category. Hi guys 'n gals I came across a cheap set of ram memory (2*1gb) (theese https://www.patriotmemory.org/product...&id=670&type=1 ) I understand, they


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Old 10-27-2009, 02:50 PM   #1
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Question

Hi guys 'n gals

I came across a cheap set of ram memory (2*1gb)
(theese https://www.patriotmemory.org/product...&id=670&type=1 )
I understand, they have a low CAS latency (7-7-7-18) - What does this mean and does it limit their compatability?

Patriot's site says, they supports Core2Extreme...

But will theese work in an AM3 MB like this https://www.asus.com/product.aspx?P_ID=fcsXWSxnhzZE9rnR ?
If yes, will the lower latency make them perform better in this environment, than ordinary 9-9-9-24?

Also, these are 1600MHz - is that better than 1333, and why?

Thank you geniuses :D
-Rooknab
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Old 10-27-2009, 03:13 PM   #2
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Those Latencies are about par for DDR3.
It "should" work with that Mobo but note the (O.C.) listed with 1600.
4 x DIMM, Max. 16 GB, DDR3 1800(O.C.)*/ 1600(O.C.)/1333/1066/800
Personally, I would go with 1333.



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Old 10-28-2009, 02:00 AM   #3
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Well I plan on putting them in a case with two fans for airflow and a huge heatpipe cpu-cooler (more airflow).

I have no experience with OC whatsoever, so I don't know exactly what influence it will have in this context (I'll make a thread on that in the OC section).

Thank you.

But I still want to know what difference the CAS latency means, and if I have to use the same kind of ram, the next time I upgrade...
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Old 10-28-2009, 03:08 AM   #4
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latency means how fast the ram works at so cl 7 is better than cl 9 or in timmings if it says 5-5-5-15 or 4-4-4-12 the 4-4-4-12 is better because it's faster
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Old 10-28-2009, 03:15 AM   #5
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to know wether ram is compatible for your board you have to check on your board manufacturers website. Some ram selling companies have a configurator on their sites to get you the right ram.

you can't just put any old ram in a pc.
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Old 10-31-2009, 06:23 AM   #7
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Thank you Cobracon :)

I think I understand now
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