Can I use PC133 RAM & DDR RAM together?

[IceBlitz]

I got free 512mb of pc133 RAM.
I'm wondering if I can stick those things into my motherboard that already has DDR RAMs inside.



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[jac857]

nope

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[sapasion]

Originally posted by IceBlitz:
I got free 512mb of pc133 RAM.
I'm wondering if I can stick those things into my motherboard that already has DDR RAMs inside.

Its a different species altogether. In fact even mobos like the Asus A7A266 which have slots for both ddr and sdram cannot use them simultaneously.

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OC Crusaders
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[GeForce]

Originally posted by sapasion:
Its a different species altogether. In fact even mobos like the Asus A7A266 which have slots for both ddr and sdram cannot use them simultaneously.

why both SDR and DDR?

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[Maxout]

For people who have SDR, they can use the board without upgrading there existing Ram.

[Shadowfire]

Originally posted by sapasion:
Its a different species altogether. In fact even mobos like the Asus A7A266 which have slots for both ddr and sdram cannot use them simultaneously.

I'll have to shatter that illusion for you - a saw a mobo in the San Mate expo center, an ASUS, however i don't remember the model name. It was plugged into the computer, but teh case was open. The memory slots were all filled with 2x256 MB SDRAM PC 133 and 2x256 MB DDR-RAM 2100. Windows read 1 GB of Ram. Any comments?



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[jac857]

Originally posted by Shadowfire:

Originally posted by sapasion:
Its a different species altogether. In fact even mobos like the Asus A7A266 which have slots for both ddr and sdram cannot use them simultaneously.

I'll have to shatter that illusion for you - a saw a mobo in the San Mate expo center, an ASUS, however i don't remember the model name. It was plugged into the computer, but teh case was open. The memory slots were all filled with 2x256 MB SDRAM PC 133 and 2x256 MB DDR-RAM 2100. Windows read 1 GB of Ram. Any comments?

sounds like bs being sdram & ddr run at different buses.

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[MercuryEnigma]

Originally posted by jac857:
sounds like bs being sdram & ddr run at different buses.

but i think it would be logical for manufacturers to support both sockets in a board and use it together.

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MY PC:-
Athlon Thunderbird 1.0 Ghz @ 1.4 Ghz
Epox 8KHA+
256 Mb PC2100 RAM
Abit Siluro MX400
LITE-ON 16x10x40
Maxtor 40 Gb 7200rpm
17" SCANET monitor
3Com Combo NIC

[Ashpool]

Although it would obviously run at the PC133 speeds. Not unless they could make the first 512MB run at PC2100 and then the rest run as reserve

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[Shadowfire]

Originally posted by Shadowfire:

Originally posted by sapasion:
Its a different species altogether. In fact even mobos like the Asus A7A266 which have slots for both ddr and sdram cannot use them simultaneously.

I'll have to shatter that illusion for you - a saw a mobo in the San Mate expo center, an ASUS, however i don't remember the model name. It was plugged into the computer, but teh case was open. The memory slots were all filled with 2x256 MB SDRAM PC 133 and 2x256 MB DDR-RAM 2100. Windows read 1 GB of Ram. Any comments?

As i said, i dont really know if it was indeed 256, or maybe half gigs, but if it was after all 4 256, half SDRAM and half DDR-RAM, and it is possible to work in different busses, all you need are two busses .



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[shastamicnasty]

I thought that I read, if you populate all the RAM slots in boards that support both SDRAM and DDR SDRAM that all of it will run at the slower speed.

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Asus K7V
AMD Athlon 700Mhz@875Mhz
512mb PC133
Geforce2 MX

[sapasion]

Originally posted by Shadowfire:

Originally posted by sapasion:
Its a different species altogether. In fact even mobos like the Asus A7A266 which have slots for both ddr and sdram cannot use them simultaneously.

I'll have to shatter that illusion for you - a saw a mobo in the San Mate expo center, an ASUS, however i don't remember the model name. It was plugged into the computer, but teh case was open. The memory slots were all filled with 2x256 MB SDRAM PC 133 and 2x256 MB DDR-RAM 2100. Windows read 1 GB of Ram. Any comments?

Not really. As I said my mobo the Asus A7A266 can use both sdram and/or ddr just not at the same time. All I can say is who among is has every seen a review of such a phenomenom [sdram and ddr simultaneously] I'd love it if someone could produce a link to a real article.
As for what you see perhaps you were mistaken. And if you weren't there must be something about that mobo somewhere. The only Asus mobo [according to Asus' own website] that can take both sdram and ddr is the A7A266. Speaking as an A7A266 user they cannot run together.

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OC Crusaders
My Humble Rig