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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Ali Chen who wrote (61246)	6/10/1999 11:27:00 AM
From: Tony Viola	Read Replies (1) \| Respond to of 1572775

Ali, What I've heard at the "pool" that the RAMBUS testing in systems revealed a design flaw - a sort of race condition in some situations. Therefore all licensed cores from RAMBUS have this flaw, including Intel controllers. I guess Elmer was right about difficulties in testability, so the flaw was discovered at very late stages in system-level testing. This would explain the desperate attempts to revive the project by lowering RAMBUS frequencies drastically. I suspect it will not help much. Rambus may have a design flaw (or two or more) but the idea of a race being alleviated by slowing the frequency doesn't make it. Races tend to fail at any frequency (although affected a little by clock jitter). It is long paths that are fixable by lowering the frequency. By the way, if they are having race problems, they are usually easily fixed by padding the offending path(s) with delay. Tony