Memory DDR Question

Irishgi · Mar 28, 2007, 05:39 PM

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Irishgi · Mar 28, 2007, 05:46 PM

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Irishgi · Mar 29, 2007, 04:40 PM

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Matth · Mar 30, 2007, 04:31 PM

Some older revisions were forced from DDR400 to DDR333 - a really painful step.

As I understand it, newer revisions have a smaller penalty, the step from 1T to 2T.

Can't find if the modules are single or double banked (often termed "sided", but it doesn't have to match the chips/sides configuration), Four single banked modules would function at maximum speed, whereas four double banked cause the reduction.

Unless the system is really "easy" on memory, 2GB at 2T would probably be faster than 1GB at 1T

Irishgi · Mar 30, 2007, 08:55 PM

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Matth · Mar 31, 2007, 06:35 PM

CPU revision - I think the dual core is recent enough to only have the "T2" penalty from running a total of 4 banks, and not the old shift to 333 - not found a review that mentions it yet.

http://www.planetamd64.com/lofiversi...hp/t24818.html
That'll have to do...

So some motherboards will default to 333 for greater compatibility, but can be set to 400 (at T2).

The only other thing I can think of, is to try your existing memory from both machines in one, and see what options can be selected with all banks loaded, then decide if it's worth using 4 modules (with the minor reduction of T2) or not (if only DDR333 can be selected).

Irishgi · Apr 3, 2007, 11:50 AM

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Irishgi · Apr 4, 2007, 03:37 AM

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H3X4D3C1M4L · Apr 8, 2007, 07:26 PM

If you're that concerned about 2T timings, get 2x1GB sticks but don't buy Corsair. Their RAM is good but ridiculously expensive.

OCZ 2GB PC3200 kits can be had for really cheap and I've never personally had a problem with an OCZ kit.

Mar 28, 2007, 05:39 PM	#1
Irishgi DriverHeaven Junior Member Join Date: Mar 2007 Location: .. Posts: 27 Rep Power: 0	Memory DDR Question .. Last edited by Irishgi; May 17, 2007 at 11:54 AM.

Mar 28, 2007, 05:46 PM	Thread Starter #2
Irishgi DriverHeaven Junior Member Join Date: Mar 2007 Location: .. Posts: 27 Rep Power: 0	.. Last edited by Irishgi; May 17, 2007 at 11:54 AM.

Mar 29, 2007, 04:40 PM	Thread Starter #3
Irishgi DriverHeaven Junior Member Join Date: Mar 2007 Location: .. Posts: 27 Rep Power: 0	.. Last edited by Irishgi; May 17, 2007 at 11:54 AM.

Mar 30, 2007, 04:31 PM	#4
Matth Flash Banner Hater Join Date: Jun 2002 Location: UK Posts: 3,426 Rep Power: 93 System Specs	Some older revisions were forced from DDR400 to DDR333 - a really painful step. As I understand it, newer revisions have a smaller penalty, the step from 1T to 2T. Can't find if the modules are single or double banked (often termed "sided", but it doesn't have to match the chips/sides configuration), Four single banked modules would function at maximum speed, whereas four double banked cause the reduction. Unless the system is really "easy" on memory, 2GB at 2T would probably be faster than 1GB at 1T __________________ Mary had a little lamb, Her father shot it dead Now Mary takes her lamb to school, Between two crusts of bread

Mar 30, 2007, 08:55 PM	Thread Starter #5
Irishgi DriverHeaven Junior Member Join Date: Mar 2007 Location: .. Posts: 27 Rep Power: 0	.. Last edited by Irishgi; May 17, 2007 at 11:54 AM.

Mar 31, 2007, 06:35 PM	#6
Matth Flash Banner Hater Join Date: Jun 2002 Location: UK Posts: 3,426 Rep Power: 93 System Specs	CPU revision - I think the dual core is recent enough to only have the "T2" penalty from running a total of 4 banks, and not the old shift to 333 - not found a review that mentions it yet. http://www.planetamd64.com/lofiversi...hp/t24818.html That'll have to do... So some motherboards will default to 333 for greater compatibility, but can be set to 400 (at T2). The only other thing I can think of, is to try your existing memory from both machines in one, and see what options can be selected with all banks loaded, then decide if it's worth using 4 modules (with the minor reduction of T2) or not (if only DDR333 can be selected). __________________ Mary had a little lamb, Her father shot it dead Now Mary takes her lamb to school, Between two crusts of bread

Apr 3, 2007, 11:50 AM	Thread Starter #7
Irishgi DriverHeaven Junior Member Join Date: Mar 2007 Location: .. Posts: 27 Rep Power: 0	.. Last edited by Irishgi; May 17, 2007 at 11:54 AM.

Apr 4, 2007, 03:37 AM	Thread Starter #8
Irishgi DriverHeaven Junior Member Join Date: Mar 2007 Location: .. Posts: 27 Rep Power: 0	.. Last edited by Irishgi; May 17, 2007 at 11:55 AM.

Apr 8, 2007, 07:26 PM	#9
H3X4D3C1M4L DriverHeaven Extreme Member Join Date: May 2005 Posts: 6,794 Rep Power: 0	If you're that concerned about 2T timings, get 2x1GB sticks but don't buy Corsair. Their RAM is good but ridiculously expensive. OCZ 2GB PC3200 kits can be had for really cheap and I've never personally had a problem with an OCZ kit.