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RAM
http://82.148.227.125:8080/viewtopic.php?f=6&t=25523		 Page 1 of 1
Author:  Seric=GCHQ= [ Fri Apr 07, 2006 3:27 pm ]
Post subject:  RAM
I'm thinking of getting 1gb more of RAM for my motherboard and wondering what the best option would be.

http://www.crucial.com/uk/store/listmodule.asp?family=DDR&tabid=DDR+PC2700

would it be best to go for 2 sticks of 512, or a single 1gb stick?

I have two slots available with 2 filled with 2x512mb crucial which para reccommended me and I'm extremely happy with.

Thought I might go for the same again (if I can remember which model it was :roll: )

Any ideas?

MB: Asus A8RMVP Skt 939 Crossfire Motherboard
Author:  Swifty [ Fri Apr 07, 2006 3:31 pm ]
Post subject: 
I would always go for the 2 x 512mb option since if you have a failure, it is not as expensive :wink:

Nice MOBO btw :)
Author:  Varp [ Fri Apr 07, 2006 6:06 pm ]
Post subject: 
You have a Dual Channel Memory Controller on your motherboard...

If I understand correctly you should have pairs of sticks to make the most of the doubled bandwidth to your memory your motherboard is capable of...

see
http://www.cpuplanet.com/features/article.php/1587771
(bit dated)

and
http://www.techspot.com/vb/topic16821.html
for something more up to date...
Author:  PARABOLIC [ Fri Apr 07, 2006 6:31 pm ]
Post subject: 
problems could arise that running 4 sticks of memory is more strenuous than 2 so therefore your CPU would scale down the RAM speed accordingly. (or not work at all).

Also you'd want PC3200.

I would go for 2 more 512s rather than another 1Gb, but I would go with 2x 1Gb over both previous options.
Author:  renoufchr [ Fri Apr 07, 2006 7:08 pm ]
Post subject: 
yea u would want PC3200 DDR400 not PC 3200DDR333 cause its slower ;)
Author:  Myx [ Sat Apr 08, 2006 12:26 pm ]
Post subject: 
renoufchr wrote:
yea u would want PC3200 DDR400 not PC 3200DDR333 cause its slower ;)


PC 3200DDR333 doesn't actually exist, PC2700 is DDR333.

Running PC2700 on 200 MHz HTT A64 doesn't really hurt performance much, just a few percent.
Author:  Seric=GCHQ= [ Sat Apr 08, 2006 1:53 pm ]
Post subject: 
http://www.crucial.com/uk/store/partspecs.Asp?IMODULE=CT2KIT6464Z40B

This will do me just fine then yes?
Author:  Myx [ Sat Apr 08, 2006 2:34 pm ]
Post subject: 
Seric=GCHQ= wrote:
http://www.crucial.com/uk/store/partspecs.Asp?IMODULE=CT2KIT6464Z40B

This will do me just fine then yes?


Go for it, should be fine :)
Author:  PARABOLIC [ Sat Apr 08, 2006 2:36 pm ]
Post subject: 
Myx =GCHQ= wrote:
Seric=GCHQ= wrote:
http://www.crucial.com/uk/store/partspecs.Asp?IMODULE=CT2KIT6464Z40B

This will do me just fine then yes?


Go for it, should be fine :)


bare this in mind though h00p://www.hardwaresecrets.com/article/239

Quote:
About the memory controller, what happens is that Athlon 64 processors have a limitation. When four DDR400/PC3200 memory modules are installed on the system, they are accessed at 333 MHz and not at 400 MHz. This was corrected on Venice and San Diego cores: on CPUs based on these cores the processor accesses the four memory modules at 400 MHz.
Author:  LeBeourfCurtaine [ Sat Apr 08, 2006 3:08 pm ]
Post subject: 
<p@r@b01!c>=GCHQ= wrote:
bare this in mind though h00p://www.hardwaresecrets.com/article/239

Quote:
About the memory controller, what happens is that Athlon 64 processors have a limitation. When four DDR400/PC3200 memory modules are installed on the system, they are accessed at 333 MHz and not at 400 MHz. This was corrected on Venice and San Diego cores: on CPUs based on these cores the processor accesses the four memory modules at 400 MHz.


You're okay on the older chips if you can get your hands on single-sided sticks :) Still searching :cry:
Author:  Seric=GCHQ= [ Sat Apr 08, 2006 4:58 pm ]
Post subject: 
Ah, I have a San Diego core, so I should be alright then?
Author:  PARABOLIC [ Sat Apr 08, 2006 7:03 pm ]
Post subject: 
Seric=GCHQ= wrote:
Ah, I have a San Diego core, so I should be alright then?


theoretically.

I had problems with 4x512 on a venice, which is also specified to be able todo it... so I guess it's a gamble.
Author:  Seric=GCHQ= [ Sat Apr 08, 2006 11:50 pm ]
Post subject: 
Seric=GCHQ= wrote:
http://www.crucial.com/uk/store/partspecs.Asp?IMODULE=CT2KIT6464Z40B

This will do me just fine then yes?


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