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From: abc@adm.BRL.MIL (Brinton Cooper)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: PC/AT Memory Size Error
Keywords: PC/AT, RAM, Everex Card
Message-ID: <24041@adm.BRL.MIL>
Date: 2 Aug 90 02:22:24 GMT
Organization: Ballistic Research Laboratory
Lines: 42


Tonight, I installed the Everex "RAM 3000 Deluxe AT Memory Expansion
Board" in an IBM PC/AT.  Upon I set the switches according to the
software delivered with the board and checked them against the prose in
the manual.  The AT has  512K on board.  The set-up is as follows:

	Existing BASE RAM:		512K
	Existing Extended Memory	  0K

	BASE memory to be added:	128K
	Extended memory to be Added	384K

	EMS Memory to be Added		  0K

There are 512K bytes of 80ns memory on the board.

The board passes the memory test administered by the software delivered
with it.

Upon COLD BOOT, the machine counts and reports OK 1024K of RAM -- TWICE.

Then, however, it reports "164-Memory  Size Error-(Run SETUP)" and asks
for the F1 key to resume the boot sequence.  This happens on warm boot
as well.

Setup program reports 512 of Main Memory and 512K of extended memory.

CHKDSK reports 655360 bytes total memory.

	1. Why do I get this "memory size error" on boot?

	2. What is CHKDSK reading for a memory report and why is it incorrect?

	3. Are the two related?

Post followups to comp.sys.ibm.pc.hardware or send e-mail.  THANKS!



_Brint
-- 
_Brinton Cooper		BRL - Where "Research" is our Middle Name.