Mtec T1230/28 RTC Users Guide

[DrDekker]

I've got one of these cards myself (bought it new about 12-15yrs ago).
 
No - it doesn't have a heatsink as standard. Although it gets a bit warm, it doesn't need a heatsink - but fitting one (if there's room) wouldn't do any harm.  Perhaps your card came from a towered system?

[DrDekker]

Glad to hear it works.

Strange that you've been able to close the trapdoor - I can't fit mine - and that's without any heatsink!

I think it best keep the trapdoor off to retain some airflow though.
 
Can you post a piccy  - I'd be most interested in seeing what H/S you've fitted.
 
Thanks.