The Sinclair QL Forum

Pr0f wrote:According to the datasheet - the -P1 is a 120ns part, so should be fine for a QL

Thanks Pr0f,
I'll try to buy some 120ns chips as replacements.

About the 4164 DRAM ICs in this Issue5 board... I wonder what the speed rating of these is?
It says "HYB4164 P1BD" on top of IC ...

Thanks very much for suggestions!

I've got the IC21 (74LS245), IC19 and IC20 (74LS257) socketed now... don't have replacements, though.
I've ordered some from the usual place but I'm not holding my breath - may take a while to get here.
I did get brave enough and installed the xgpro Windows ...

Hi,

I wonder if anyone would have suggestions on what might be the problem?
I got this QL unit a while ago - it booted Ok a few times except that one microdrive kept on running.
Then after power off and on it started to show just garbage on screen.... didn't boot anymore.
I now have the Minerva 1 ...