1T or 2T command rate for memory
Hi ! I have 2 dimms single sided installed (2*256Mb) and I want to know if I can set the command rate to 1T (auto set it to 2T) ?

Thank you.

Specs :
K8NXP-9 Nforce 4 Ultra
Athlon64 3200+
Corsair CVS 2.5-3-3-8 DDR 400
Hi ! I have 2 dimms single sided installed (2*256Mb) and I want to know if I can set the command rate to 1T (auto set it to 2T) ?



Thank you.



Specs :

K8NXP-9 Nforce 4 Ultra

Athlon64 3200+

Corsair CVS 2.5-3-3-8 DDR 400

#1
Posted 09/16/2005 09:39 PM   
I use to have the same memory in my epox nf3 ultra, 1T works and = better performance than 2T.

Put it on 1T and run memtest

[url="http://www.memtest.org/"]http://www.memtest.org/[/url]

If after 4 passes there are no errors then i doubt you will get any. Perhaps run it over night.
I use to have the same memory in my epox nf3 ultra, 1T works and = better performance than 2T.



Put it on 1T and run memtest



http://www.memtest.org/



If after 4 passes there are no errors then i doubt you will get any. Perhaps run it over night.

#2
Posted 09/16/2005 09:58 PM   
Some will disagree, It seems its not much of a diff. ASUS recc. 2T so well see. :)

BTW: System peoples recc. also 2T, SO hmm... :)

Way more stable trust me.
Some will disagree, It seems its not much of a diff. ASUS recc. 2T so well see. :)



BTW: System peoples recc. also 2T, SO hmm... :)



Way more stable trust me.

GA-Z97X-UD3H / Intel i5-4690 / 4x4GB Samsung DDR3-1600 / Intel 730 240GB / NVIDIA GTX 770 / Cooler Master V650 / HP Pavilion 27xi / Creative Gigaworks T40 Series II

#3
Posted 09/17/2005 01:17 AM   
[quote name='Nostromo25' date='Sep 16 2005, 04:39 PM']Hi ! I have 2 dimms single sided installed (2*256Mb) and I want to know if I can set the command rate to 1T (auto set it to 2T) ?

Thank you.

Specs :
K8NXP-9 Nforce 4 Ultra
Athlon64 3200+
Corsair CVS 2.5-3-3-8 DDR 400
[right][post="49992"]<{POST_SNAPBACK}>[/post][/right][/quote]

1T is recommended for ECC memory, Error Correcting Dimms/Buffered memory. 2T is recommended for unbuffered memory (Standard Memory Dimms)

Some can get away using 1T on Unbuffered memory if they don't leave their computer running 24 hours a day like I do. If you shut your computer off nightly, 1T would not be that risky.
[quote name='Nostromo25' date='Sep 16 2005, 04:39 PM']Hi ! I have 2 dimms single sided installed (2*256Mb) and I want to know if I can set the command rate to 1T (auto set it to 2T) ?



Thank you.



Specs :

K8NXP-9 Nforce 4 Ultra

Athlon64 3200+

Corsair CVS 2.5-3-3-8 DDR 400

[post="49992"]<{POST_SNAPBACK}>[/post]




1T is recommended for ECC memory, Error Correcting Dimms/Buffered memory. 2T is recommended for unbuffered memory (Standard Memory Dimms)



Some can get away using 1T on Unbuffered memory if they don't leave their computer running 24 hours a day like I do. If you shut your computer off nightly, 1T would not be that risky.

Intel Core 2 Duo 6600 @ 3.3ghz, Asus P5W Deluxe Mobo, 8192mb Mushkin DDR2, EVGA GF8800GTX, Xi-Fi Extreme Gamer Soundcard, Diamondmax 10 300gb HD, 2x Diamondmax Maxline III 250gb, OCZ GameXStream 700W PS

#4
Posted 09/17/2005 07:24 PM   
[quote name='evil' date='Sep 18 2005, 03:24 AM']1T is recommended for ECC memory, Error Correcting Dimms/Buffered memory. 2T is recommended for unbuffered memory (Standard Memory Dimms)

Some can get away using 1T on Unbuffered memory if they don't leave their computer running 24 hours a day like I do. If you shut your computer off nightly, 1T would not be that risky.
[right][post="50086"]<{POST_SNAPBACK}>[/post][/right][/quote]
why is this so ? I am running 1T running 2/7 on my Athlon X2 4200+ Using MSI K8N SLI Plat ... as for my other rig running Dual Opteron 240 ... I am even unable to boot at 1T setting /no.gif' class='bbc_emoticon' alt=':no:' />
[quote name='evil' date='Sep 18 2005, 03:24 AM']1T is recommended for ECC memory, Error Correcting Dimms/Buffered memory. 2T is recommended for unbuffered memory (Standard Memory Dimms)



Some can get away using 1T on Unbuffered memory if they don't leave their computer running 24 hours a day like I do. If you shut your computer off nightly, 1T would not be that risky.

[post="50086"]<{POST_SNAPBACK}>[/post]


why is this so ? I am running 1T running 2/7 on my Athlon X2 4200+ Using MSI K8N SLI Plat ... as for my other rig running Dual Opteron 240 ... I am even unable to boot at 1T setting /no.gif' class='bbc_emoticon' alt=':no:' />

#5
Posted 09/18/2005 03:46 AM   
[quote name='xHOLDx' date='Sep 17 2005, 10:46 PM']why is this so ? I am running 1T running 2/7 on my Athlon X2 4200+ Using MSI K8N SLI Plat ... as for my other rig running Dual Opteron 240 ... I am even unable to boot at 1T setting  /no.gif' class='bbc_emoticon' alt=':no:' />
[right][post="50133"]<{POST_SNAPBACK}>[/post][/right][/quote]

Some ram does not support 1T at all.
[quote name='xHOLDx' date='Sep 17 2005, 10:46 PM']why is this so ? I am running 1T running 2/7 on my Athlon X2 4200+ Using MSI K8N SLI Plat ... as for my other rig running Dual Opteron 240 ... I am even unable to boot at 1T setting  /no.gif' class='bbc_emoticon' alt=':no:' />

[post="50133"]<{POST_SNAPBACK}>[/post]




Some ram does not support 1T at all.

Intel Core 2 Duo 6600 @ 3.3ghz, Asus P5W Deluxe Mobo, 8192mb Mushkin DDR2, EVGA GF8800GTX, Xi-Fi Extreme Gamer Soundcard, Diamondmax 10 300gb HD, 2x Diamondmax Maxline III 250gb, OCZ GameXStream 700W PS

#6
Posted 09/18/2005 07:20 AM   
[quote name='evil' date='Sep 18 2005, 02:20 AM']Some ram does not support 1T at all.
[right][post="50141"]<{POST_SNAPBACK}>[/post][/right][/quote]

But isn't 1T or 2T command rate related to the chipset ?
[quote name='evil' date='Sep 18 2005, 02:20 AM']Some ram does not support 1T at all.

[post="50141"]<{POST_SNAPBACK}>[/post]




But isn't 1T or 2T command rate related to the chipset ?

#7
Posted 09/18/2005 07:27 AM   
Enjoy reading this article.

[url="http://www.mushkin.com/doc/techSupport/papers/latency.asp"]http://www.mushkin.com/doc/techSupport/papers/latency.asp[/url]
Enjoy reading this article.



http://www.mushkin.com/doc/techSupport/papers/latency.asp

#8
Posted 09/18/2005 12:36 PM   
If you have an Intel CPU, 1T is fine regardless of anything else.

If you have an AMD S939 CPU, the general rule of thumb is "1T for 2 installed modules, 2T for 4 installed modules", at least if you believe the people over at the Anandtech forums. I'd like to hear Mushkin's take on that though :)

Regardless, 2T with 4 modules certainly seems reasonable with the amount of people having trouble even with 2 installed modules at 1T. The AMD64 memory controller is a very finicky one (if you ask me, I think it needs to be re-thought to be more compatible).

Of course, YMMV. I have 2*1GB OCZ 3-4-4-8 modules installed and 1T is just fine. A Prime95 torture test runs forever and ever amen, and memtestx86 ran into no errors over a weekend run while I was away. I have a dual core 4800+ on an A8N-SLI Premium.
If you have an Intel CPU, 1T is fine regardless of anything else.



If you have an AMD S939 CPU, the general rule of thumb is "1T for 2 installed modules, 2T for 4 installed modules", at least if you believe the people over at the Anandtech forums. I'd like to hear Mushkin's take on that though :)



Regardless, 2T with 4 modules certainly seems reasonable with the amount of people having trouble even with 2 installed modules at 1T. The AMD64 memory controller is a very finicky one (if you ask me, I think it needs to be re-thought to be more compatible).



Of course, YMMV. I have 2*1GB OCZ 3-4-4-8 modules installed and 1T is just fine. A Prime95 torture test runs forever and ever amen, and memtestx86 ran into no errors over a weekend run while I was away. I have a dual core 4800+ on an A8N-SLI Premium.

#9
Posted 09/27/2005 04:40 PM   
Thank you very much for the help !
Thank you very much for the help !

#10
Posted 09/27/2005 10:16 PM   
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