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- Newsgroups: comp.sys.amiga.hardware
- Path: vsnhdf.cern.ch!tha
- From: tha@vsnhdf.cern.ch (Thomas Haller)
- Subject: Re: Can i add a MATH-CO to an A1200 mother board?
- In-Reply-To: boost@sbbs.se's message of 16 Mar 96 16:32:49 GMT
- X-Nntp-Posting-Host: vsnhdf.cern.ch
- Message-ID: <THA.96Mar20133108@vsnhdf.cern.ch>
- Sender: news@news.cern.ch (USENET News System)
- Organization: European Organization for Nuclear Research, Geneva
- References: <31482F94.1A21@cs.bham.ac.uk> <1727.6649T1007T465@sbbs.se>
- Date: Wed, 20 Mar 1996 12:31:08 GMT
-
- >>>>> "Fredrik" == Fredrik Rambris <boost@sbbs.se> writes:
- > I'd just like to add some info... the socket on the motherboard
- > fitts JUST fine to an FPU (or actually FPCP). Also the frequency
- > problem is this... in the Amiga 1200 there is just one oscilator,
- > running about 30MHz. This is then scaled down to the different
- > components in the Amiga. It's no problem to replace the crystal to a
- > 33.3MHz at all... the processor will then run on
- > 16.5MHz... everything will go faster (the graphics too). The only
- > thing is that the luminance-circuit in the rf-modulator (the one
- > that gives out composite video and TV-signa) won't deliver the
- > signal in right frequensy. What happens is that if ya run the Amiga
- > with a standard TV (not via RGB or SCART) the picture will not be
- > synced. So if yo run with a monitor... no plobs! /Fredrik Rambris
- Be carefull with that hack when using diskdrives !
- You can run into problems as the drive rpm is not changed but the
- datarate is!
- ___
- |homas
-
- > -- Fredrik Rambris <boost@sbbs.se>
-
-