Keith Williams
Guest
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 Posted:
Tue Feb 15, 2005 8:06 pm Post subject:
Re: How to add memory to your PC |
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In article <slrnd128ar.s0t.The-Central-
Scrutinizer@linux.client.comcast.net>, The-Central-
Scrutinizer@p.o.b.o.x.com says...
| Quote: | On Mon, 14 Feb 2005 11:03:05 -0500, Keith Williams <krw@att.bizzzz> wrote:
On ancient systems with an ISA disk controller
their memory capacity doesn't allow for more than 64M.
That makes no sense. If you're double buffering there is no "64MB
limit". The buffer can be anywhere in memory since the processor is
moving the data from under the 16MB line to above.
I meant a practical limit.
The last systems with ISA disk controlers where 486s when memory cost
$100 for 4M of memory. Motherboards maxed out at 64M.
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That's not an ISA nor SCSI memory limit then. It's a $$ limit or
perhaps a memory slot limit. I've seen ISA SCSI cards in Pentia (PCI)
boards, as well. Typically they were used for scanners and stuff
though and I don't recall if they were bus-masters (likely not).
--
Keith |
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