[comp.sys.ibm.pc.misc] need layout of IDE zones, and 386 control software

grossman@starfleet.bbn.com.bbn.com (Martin Grossman) (03/07/91)

1) please respond only via email to grossman@bbn.com

2) Here's the hardware questions

	I have in my new 80386DX the following IDE drive.
	ST1144AT
	ROM Ver 5.0
	RAM Ver 5.5
	CYL=1021   HEAD=7   SEC= 44/36/30    512bytes/sec
	1) anything special in these drives that their is a version on
	   the RAM?
	2) I read the BYTE article on IDE drives and fully understand
	   it...SO my drive has three zones...outer tracks have 44
	   sectors and inner have 30 BUT!!!! how many cylinders for
	   each of the three zones? (ie does anyone have the full spec
	   sheets?) I only have 1 sheet that sais the above.
	3) the cmos ram in the system is set up on #47 (user defined
	   one) and is set to cyl=1001 head=15 sec=17 noprecomp and
	   no reduced write.
	4) I understand why its set to 15 heads to take care of all
	   them sectors BUT...why only setup for 1001 cyl??  are the
	   rest of the cyl all reserved for bad sector replacement (so
	   the drive looks perfect)?  Isn't that a lot of space for
	   replacements? Here at work (on the C/70) we set asside 508
	   replacement sectors for a 340MB drive!!!  And that always
	   been plenty!!!

3) Whats the difference (besides price) between Quaterdeck QEMM386
   and 386MAX (don't remember the Co.)