19 Nov
2014
19 Nov
'14
9:02 p.m.
IME, older ROM chips can get +quite+ warm.. but 'painful' is fairly
subjective. I seem to recall ROM chips running hotter than the 6502/6510
CPU in some of my Commodore stuff.
Do you have any way to quantify the temperature? A little HS compound & a
digital cooking thermometer?
On Wed, Nov 19, 2014 at 7:47 PM, Josh Dersch <derschjo at gmail.com> wrote:
Hey all --
A quick one -- what's the normal operating temperature for the old MPS6540
ROMs used in the original Commodore PETs? I noticed last night after
running mine for ~30 minutes that the ROMs were very hot, to the point of
being painful to touch.
The machine is running fine as far as I can tell -- though I haven't
verified the contents of the ROMs, BASIC runs without any apparent issues.
Voltages are normal (just a shade under 5V).
I've not experienced ROM chips that run so very hot -- is this normal?
Thanks,
Josh