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- Newsgroups: comp.sys.amiga.hardware
- Path: sparky!uunet!mcsun!sunic!aun.uninett.no!news.uit.no!stud.cs.uit.no!terjem
- From: terjem@stud.cs.uit.no (Terje Normann Marthinussen)
- Subject: A2620 ram speed
- Sender: news@news.uit.no (USENET News System)
- Organization: University of Tromsoe
- Date: Wed, 2 Sep 1992 12:35:40 GMT
- Message-ID: <1992Sep2.123540.5714@news.uit.no>
- Lines: 20
-
- Does anyone know what the differentjumper settings on the J500 jumper on the
- A2620 cards means?
-
- The manuall only says that the default settings is for 100ns ram timing which
- is the speed on the ram. This should as far as I know make the 68020 run at one
- wait-state. However, I tried to move this jumper to the lower position (which
- I believe is 80 ns) and everything seems to work just fine, with the additional
- bonus of a small but noticable (and measurable) increcment in speed.
-
- Just wondering if anyone could confirm that the lower position on this jumper
- really is 80ns or if anyone knows if there might be a third setting (no
- connection between the pins).
-
- Anyway, if it is normal that 100ns ram chips can handle 80ns speed I suppose
- that this is the cheapest way to accelerate a A2620 card.
-
-
- Terje Marthinussen
- terjem@stud.cs.uit.no
-
-