I believe that a standard laptop cooling fan 25mm x 25mm x 10mm is the one used on BPPC cards (DC 5V), correct?
No. It's 30mm x 30mm 5VDC. Mine was 6mm high. This is what phase5 fitted anyway. The model was a AD0305LX-K70 Hypro from ADDA USA - see the
specs.
As you might guess my fan died recently. I pondered about fitting a larger fan, but it's such a tight fit, I decided to cut my losses and buy a fan of the same size for some extorniate amount of money :-) The model I chose has about twice the airflow, yet only uses a tiny amount of extra power compared to the original fan. And I bought it from Farnell -
code 371-9844.