david@wmms.UUCP (David R. Mayne) (05/06/91)
As I went to install a larger drive in my 3b1 last weekend, I also had intended to apply the DRUN patch which Thad had discovered to allow use of my WD2010B bought during Thad's group buy in 1989. My system did not previously accept the WD2010B, giving the symptons of reading the boot loader, then reading a little from the hard drive, aborting the read, attempting to boot from floppy, back to hard drive for a few more #'s, etc..... My technician had solder gun and parts ready in hand, and we disassembled the machine; to our suprise, the DRUN patch had already been applied to the motherboard of this machine. I have been the only owner of this machine, having purchased it from AT&T right before the fire sale :^( The technician observed the quality of the patch, and also believed that it had to be done in the factory. He checked the leads and the resistor, and the numbers were right at spec. We reassembled the machine, replacing the noisy 40 meg Miniscribe with an 80 meg Seagate ST4096 (no flames please, the drive came free). The Seagate would not format with the WD2010 installed (giving Winchester error = 4). It formatted quite nicely with the WD1010 (although I have not had the 5.1 upgrade performed yet). After formatting the drive, doing surface tests, and installing the base OS, we then tried the WD2010 again, giving the same symptons as described at the first of this post. Has anybody else applied the DRUN patch and still been unable to use the WD2010 ? Are there any differences between the WD2010 A-B-C chips which could cause my troubles ? Perhaps I have a bad chip - I will attempt to locate another one. Any other suggestions would be very appreciated. Thanks, David -- David R. Mayne 1364 Normandy Dr. NE Atlanta, GA 30306 david@wmms (404) 876-0943 ...!gatech!bagend!wmms!david Have you built a waterbar today ?