Akdor 1154
02-13-2009, 07:21 AM
Hi
Just undertook my last expected upgrade for my DDR/Socket 754 based system; replaced the 512+512+256 RAM config with shiny new 1GB+1GB+old 512MB set.
Now, all chips are double sided DDR400; the gig sticks are Corsair Value Select CL3, the 512MB stick is (I think) CL2.5.
Upon installation, my motherboard (ASUS K8N-E Deluxe, nForce 3 based) informed me the DDR speed was 200: I frowned, went into the BIOS, and manually set it to 400MHz and CL3 (all other timing options I'm not familiar with so I left set to auto). Yay, reboot, DDR is apparently at 400, XP x64 boots fine and recognizes the lot.
However, a nagging feeling of doubt (why did the mobo set it to 200?) had me digging out my mobo manual, in which was a table of memory installation configurations.
-- sidedness -- | DDR speed
single | single | -- | 400
single | double | -- | 400
single | double | single | 333
etc
etc
down to
double | double | double | 200
(My current configuration is of course the last one listed.)
So. Questions.
1) Is forcing the memory frequency to 400 productive? Dangerous? Pointless (i.e. bottleneck elsewhere)?
2) If I take out the 512MB stick, I'll have 2GB running at DDR400 - on the conjecture that my current 2.5GB is giving me the performance equivalent of DDR200, will 2GB at 400Mhz give a performance boost or hit?
Thanks,
Jarrad
BTW *waves to all ex totseans*
Just undertook my last expected upgrade for my DDR/Socket 754 based system; replaced the 512+512+256 RAM config with shiny new 1GB+1GB+old 512MB set.
Now, all chips are double sided DDR400; the gig sticks are Corsair Value Select CL3, the 512MB stick is (I think) CL2.5.
Upon installation, my motherboard (ASUS K8N-E Deluxe, nForce 3 based) informed me the DDR speed was 200: I frowned, went into the BIOS, and manually set it to 400MHz and CL3 (all other timing options I'm not familiar with so I left set to auto). Yay, reboot, DDR is apparently at 400, XP x64 boots fine and recognizes the lot.
However, a nagging feeling of doubt (why did the mobo set it to 200?) had me digging out my mobo manual, in which was a table of memory installation configurations.
-- sidedness -- | DDR speed
single | single | -- | 400
single | double | -- | 400
single | double | single | 333
etc
etc
down to
double | double | double | 200
(My current configuration is of course the last one listed.)
So. Questions.
1) Is forcing the memory frequency to 400 productive? Dangerous? Pointless (i.e. bottleneck elsewhere)?
2) If I take out the 512MB stick, I'll have 2GB running at DDR400 - on the conjecture that my current 2.5GB is giving me the performance equivalent of DDR200, will 2GB at 400Mhz give a performance boost or hit?
Thanks,
Jarrad
BTW *waves to all ex totseans*