#Mitsumi CD-ROM problems
5 messages in this thread
I'm getting a 'gradual' problem with my Mitsumi CD-ROM (CRMC mode, 16 bit card,
350MS) that I wonder if anyone else has come across. When my machine is first
booted, it works fine. However, if I continually use it (either reading files
ofr playing audio CD's), after about 1.5 – 2 hours it seems to start having
problems reading the CDs… 'Not ready' errors start occuring, or *very* long
times (with lots of clicking sounds) to retrieve data, or audio CD music
passages skipped or stuck. I've reseated the cards, checked the wires, and it
still occurs. I've noticed that inside the drive where the CD goes gets very
hot to the touch…I wonder if this is normal, or could be contributing to the
problem? Any advice/suggestions appreciated. My environment is both DOS 5.0
with the DMA driver, and OS/2 2.0 with a DOS VDM and the IRQ only driver
(MTMCDS version 2.00a)
Mike Bonett
Well… to test your problem I ran my internal Mitsumi CD for 3 hours on a
favorite music CD…. My drive wasn't hot to the touch inside or out… Im
thinking you got a bum drive… Although you might want to make sure your case
it cooling it self good enough.. Ever think of getting a second fan? I know
that without my second fan my system would fry. (DX2-66 with 8 slots full and 2
HD's, 2 floppies and a CD..) Other than that… I'd say it was your drive…
Hope that helps..
-Jake
Thanks for the info…I may check out additional cooling for the system first –
Since I didn't think I had much in the tower case (2 floppies, 1 hard drive,
the CD, and only 3 of 8 slots being used) I thought that was fine. But, you
never know…at least the Mitsumi is still under warranty.
Mike,
Sounds like heat to me. When I installed my Mitsumi, I also installed a second
fan in my tower case. My motherboard is stuffed (all the slots are full) and
this helps move the air around and prevents hot spots. You should also check
your power supply fan to be sure it's moving as much air as it should. They
get dusty and their efficiency drops. Also be sure the fan outlet isn't
blocked by a wall or desk or other computing debris.
Ken
Ken, thanks. I still have most of my slots free, and I have a mid tower case
that sits on my desk, at least a foot away from any obstructions. But, you
never know…ny 486 chip does get quite hot to the touch, so the idea of a
second fan may make sense.