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- From: perkins@gamma1.ltn.dec.com (Eric Perkins)
- Newsgroups: comp.os.ms-windows.programmer.win32
- Subject: Running NT with more than 16MB
- Message-ID: <1410@sousa.ltn.dec.com>
- Date: 29 Jul 92 13:30:53 GMT
- Sender: newsa@sousa.ltn.dec.com
- Reply-To: perkins@gamma1.ltn.dec.com (Eric Perkins)
- Organization: Digital Equipment Corporation
- Lines: 20
-
- Has anyone tried to run Windows NT on an ISA intel machine with
- more than 16Mb installed?
-
- My question concerns what happends on an ISA machine with disk controllers
- or other expansion boards which might try to access memory above the
- 16Mb limit of the ISA expansion bus. Does this even happend in todays
- systems?
-
- For instance, what if some software wants to DMA a block of memory to a disk
- or video or other type of card? If the source or destiation of the DMA
- transfer is above 16Mb what happends? Do the DMA controllers automaticall
- handle this case? Is there some system software which will detect this and
- possibly do a transfer to low memory (below 16Mb) and then transfer it
- above 16Mb to its destination?
-
- I currently have a 16MB 486 machine and I have asked for more memory, but now
- I wonder if it will really work or if I will need an EISA machine with
- all EISA add in boards.
-
- -- Eric Perkins
-