NOTICE to RamFAST Customers
Sequential Systems
Copyright (c) 1995 Apple Users' Group, Sydney
Republished from Applecations, a publication of the Apple Users' Group, Sydney, Australia.
If you have a Revision D RamFAST, serial number approximately 3700 to 4700, manufactured by CV Technologies, you will want to remove your board from your computer and verify the part numbers U15 and U17. The part numbers will be either 18CV815 or 18CV825. If the part numbers are 18CV825, you need to have the parts replaced. The '15' and '25' at the end of those part numbers represent the speed of the parts in billionths of a second (nanoseconds, or ns). The 18CV815 part is thus faster than the 18CV825 part.
If you are having reliability problems with your RamFAST and the serial number is approximately in the range above, you will want to check it for this problem.
A reason to have the parts replaced, even if you're not having problems at the moment, is that the parts get marginally slower with age - and the 18CV825 parts were barely fast enough new. As they have aged, the parts start failing.
Another reason is that when CV Technologies discovered this problem, they found and corrected another minor problem. This bug, which exists in RamFAST cards that have the 18CV825 parts, will cause compatibility problems with the Second Sight card, and should be fixed.
The 'fix' requires that these two parts be replaced by experienced technicians. Sequential Systems currently charges US$35 for the upgrade.
Call 303-666-4549 to get a Return Merchandise Authorization (RMA) code. The turn-around time will be approximately three days.

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