The TI 99/4 never to my experience have a heat problem.
They are over 20 years old so caps will fail along with
other parts.
When it comes to heat S100 crates were masters. TEI made a box that
actually had a cooling path. Most the PS or some other structure blocked
most of the air flow. When you consider 56K of ram then was 208 2102s
plus all the bus interface and CPU, DIS and IO cards (at elast 10 often 12
cards) warm was what the room became when it had been running for
a while.
Allison
On 02/22/2014 08:25 PM, drlegendre . wrote:
A number of early home computers liked to overheat.
More than two or three cards plugged-in the Apple II? Get a fan now, or
it's only a matter of time.. they even ran hot as-shipped.
My original VIC-20 ran frightfully hot, as did its power supply - just as
did the C-64 which replaced it. Both were run with a large muffin fan
positioned close behind the rear panel, which seemed to help a lot - both
machines have large slots in the rear, centred on the top plane of the
motherboard.
I'm not sure why this is, it's as if the manufacturers never actually
tested these machines under real-world operating conditions.
On Sat, Feb 22, 2014 at 4:58 PM, John Many Jars <
john at yoyodyne-propulsion.net> wrote:
> My first computer was a 99/4
> It used to overheat.
> On 22 Feb 2014 21:47, "Terry Stewart" <terry at webweavers.co.nz>
wrote:
>
>> I'm not sure how many on this list are interested in cheap home computers
>> of the early 1980's but anyway...my crowded collection space is now even
>> more challenged! Nice to have an example of this one though.
>>
>> Here is how I got it:
>>
>>
>
http://www.classic-computers.org.nz/blog/2014-02-22-ti99_4a-reconstituting.…
>> and here is how I've described it on the collections page:
>>
http://www.classic-computers.org.nz/collection/ti99-4a.htm
>>
>> Terry (Tez)
>>