Feeds

AMD Phenom CPUs to support DDR 3?

5 things you didn’t know about cloud backup

AMD's Phenom processors weren't expected to gain DDR 3 support until H2 2008 when the chip maker introduces its Socket AM3 interconnect. But documents posted on the company's website show the upcoming, Socket AM2+ versions are DDR 3 compatible too.

AM2+ is all about supporting HyperTransport 3, the latest version of the technology AMD uses to connect its processors to host computers' system chips. AMD has said AM2+ will support DDR 2 memory, controlled using its CPUs' built-in memory manager hardware.

DDR 3, on the other hand, already supported by Intel's P35, G33 and other 'Bearlake' chipsets, hasn't officially been due to be supported until H2 2008.

However, AMD's BIOS and Kernel Developer's Guide for AMD Family 10h Processors, essentially the chip series' low-level programming bible, reveals "support for DDR 2/DDR 3 DIMMs in product variations".

Of course, AMD would want to architect in DDR 3 support, in order to ensure the second-generation Phenoms - and, indeed, the recently released 'Barcelona' third-generation Opteron server CPUs - are able to handle DDR 3 in the near future without AMD having to design a whole new memory controller and re-validate the chip with this new component.

The question is, will Phenoms be able to use DDR 3 out of the gate, or will their use of the Socket AM2+ bus preclude support of DDR 3 until AM3 comes out?

The essential guide to IT transformation

More from The Register

next story
So, Apple won't sell cheap kit? Prepare the iOS garden wall WRECKING BALL
It can throw the low cost race if it looks to the cloud
Samsung Gear S: Quick, LAUNCH IT – before Apple straps on iWatch
Full specs for wrist-mounted device here ... but who'll buy it?
Apple promises to lift Curse of the Drained iPhone 5 Battery
Have you tried turning it off and...? Never mind, here's a replacement
Now that's FIRE WIRE: HP recalls 6 MILLION burn-risk laptop cables
Right in the middle of Burning Mains Man week
HUGE iPAD? Maybe. HUGE ADVERTS? That's for SURE
Noo! Hand not big enough! Don't look at meee!
AMD unveils 'single purpose' graphics card for PC gamers and NO ONE else
Chip maker claims the Radeon R9 285 is 'best in its class'
prev story

Whitepapers

Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Advanced data protection for your virtualized environments
Find a natural fit for optimizing protection for the often resource-constrained data protection process found in virtual environments.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.