Feeds

Fresh Intel i820 chipset close to completion

Caminogate: DIMMs and SIMMs together at last

  • alert
  • submit to reddit

The essential guide to IT transformation

Intel's embarrassment over the i820 chipset looks set to be resolved at last. Maybe. Sources close to the company's plans have informed us that Intel will ship an updated chipset for sampling to mobo vendors in mid-February which will, at last, support both Rambus memory and synchronous DRAM memory on the same planar. The boards will have support for two Rambus sockets and two additional SDRAM sockets, and also will include a revised, B2 stepping of the memory translator hub (MTH) which is now called the memory conversion hub (MCH). Reviews of machines using the existing MTH on i820 mobos have revealed a dramatic slow down on performance. Intel's decision and ability to include the two sets of sockets on the same mobo, rather than two separate boards, one of which supports RIMMs and the other DIMMs is bound to please hardware manufacturers. Many, including major Intel customer Dell, have complained about an inability to source sufficient Rambus parts, at a reasonable price. How does all of this work? Our information is that the boards will work with PC-133 memory, but the exigencies of practicality mean that its effective speed will be equivalent to PC-100. The two RIMM sockets will act as normally, while the MCH will show that the DIMMs appear to the PC as if they are on the same memory bus as the Rambus modules. This means that the performance of the RIMMs will be degraded, but does have the side benefit that you can populate the i820 with DIMMs and then upgrade to RIMMs if you wish to. It is so far unclear whether this method will drag the speed of the RIMMs down to the speed of the DIMMs. Intel first experienced difficulties with the i820 chipset last February, when it said it would have to put the launch back until autumn last year. However, after announcing the two different versions of the chipset, manufacturers were forced to stop their launch of Rambus-flavoured machines based on it because of technical problems. Intel was unavailable for comment at press time. ®

Boost IT visibility and business value

More from The Register

next story
6 Obvious Reasons Why Facebook Will Ban This Article (Thank God)
Clampdown on clickbait ... and El Reg is OK with this
Banking apps: Handy, can grab all your money... and RIDDLED with coding flaws
Yep, that one place you'd hoped you wouldn't find 'em
No, thank you. I will not code for the Caliphate
Some assignments, even the Bongster decline must
Barnes & Noble: Swallow a Samsung Nook tablet, please ... pretty please
Novelslab finally on sale with ($199 - $20) price tag
Ballmer leaves Microsoft board to spend more time with his b-balls
From Clippy to Clippers: Hi, I see you're running an NBA team now ...
Video of US journalist 'beheading' pulled from social media
Yanked footage featured British-accented attacker and US journo James Foley
Primetime precrime? Minority Report TV series 'being developed'
I have to know. I have to find out what happened to my life
Broadband slow and expensive? Blame Telstra says CloudFlare
Won't peer, will gouge for Internet transit
Netflix swallows yet another bitter pill, inks peering deal with TWC
Net neutrality crusader once again pays up for priority access
prev story

Whitepapers

Best practices for enterprise data
Discussing how technology providers have innovated in order to solve new challenges, creating a new framework for enterprise data.
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.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?