A small question about RAM

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DaveB
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Post by DaveB »

And thereby hangs another story..

Both my main mobo's are Asus and are dual channel but have only 3 slots. Ideally, slots 1 and 2 should be the same and equal slot 0 to work effectively but experience has shown that they'll tolerate a little give and take.

I agree about DDR mind you. DDR is DDR regardless.. as I understand it anyway :wink:

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TSR2
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Post by TSR2 »

Spot on CB... I'm getting my Double D's mixed up! Oooh Err! :redface:
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DaveB
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Post by DaveB »

Should this not be on that balloon thread in E&S??

:lol: :lol: :lol:

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TSR2
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Post by TSR2 »

Double D's and Big Baloons! Whatever next... we'll be geting an 18 certificate at this rate! :roll: :lol:
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jonesey2k
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Post by jonesey2k »

Try having 2x512 in the coloured slot and a 1gb module in the other one.
Ill be getting 2 more matched 512's soon to complement my new X2 4400 that I hope will clock to FX60 speeds :smile:

A cheat Ive got going atm because Ive only got 1gb (2x512) is to have the pagefile on my other hard drive so it can be read and written to at the same time as data is pulled off the primary hdd :smile:
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petermcleland
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Post by petermcleland »

Yes indeed I was muddling DDR with Dual Channel...DDR is double Data Rate but combined with Dual Channel it almost doubles the rate again.

I use an ABIT IC7-G and here is how you enable Dual Channel:-

When installing two memory sticks...Instal DIMM modules of the same type and size in slots (DIMM1 and DIMM3) OR slots (DIMM2 and DIMM4).

When installing four memory sticks...Instal DIMM modules of the same type and size in slots (DIMM1 and DIMM3) AND slots (DIMM2 and DIMM4).

An ODD number of sticks will not activate Dual Channel.

It also indicates that Dual Channel WILL be activated if one pair is one size and the other pair is a different size...So you could have one PAIR of 512MBs and one PAIR of 1GBs to make a total of 3GBs...But you could NOT make up that 3GBs total with THREE 1GB sticks without losing the Dual Channel activation.

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DanKH
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Post by DanKH »

Well the latter is indeed what I have at current.

1 pair of 512 and an odd pair of 256/512

Thus giving me 1.6 GB with Dual Channel enabled...

Who could ask for more.... :lol:

Well, I'm about to change the odd 256 for an equal 512 shortly....Rock and Roll.....
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petermcleland
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Post by petermcleland »

DanKH wrote:Well the latter is indeed what I have at current.

1 pair of 512 and an odd pair of 256/512

Thus giving me 1.6 GB with Dual Channel enabled...

Who could ask for more.... :lol:

Well, I'm about to change the odd 256 for an equal 512 shortly....Rock and Roll.....
The ABIT would not go Dual Channel with that because of the "odd pair of 256/512" not being the same size. However, it would fire up Dual channel when you make that a pair of 512s.

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Charlie Bravo
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Post by Charlie Bravo »

And for all those thinking "should I get a dual channel board?", it only boosts performance by around 5%.
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ianhind
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Post by ianhind »

Perhaps so CB, but a dual channle motherboard gave me 4 x working RAM slots instead of 2 with another one that worked slowly if at all :roll:

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