Ok a bit of detective work, but no definitive Eureka! moment.
I opened it up and took a few photos. It is only 6 screws to get the lid off.
The fan is 60MM x 15MM Long Chang model LC6015S, 12v 0.15A. I want to know the CFM rating even though I am sure I can improve airflow greatly by reducing restriction.
A 20MM thick fan might just barely fit in the stock location inside the case.
A 25MM thick fan most definitely will NOT fit. An 80MM fan no more than 15MM thick could likely be installed within the case with some modification to opening and mounting holes.
No hits on Google on Longchang fan. I peeled back the sticker but the retaining ring is so wide I cannot see whether it is a sleeve bearing fan, but the thick lubricant pretty much dictates so, as no way could this lubricant escape a ball bearing.
I found Extremely similar fans where the shape of the impeller is exactly the same, but there are slight differences on the case. The closest does not claim an amp draw, just a CFM of 16 and 3600 rpm but it claims ball bearing, not dual ball, just ball. 27 DBA claim is similar to what I believe 27 Dba to sound like, but I have no way to measure rpm or sound.
I found another 60 x 15mm fan which has the same exact impeller but claims to move 32 CFM at 2000 rpm, and a 0.18 current draw, so something is screwy with that fan listed specs, as some other higher quality dual ball bearing 60x15mm fans that claim 5400 rpm and 0.4 amps only claim 27 CFM.
I will seek to replace stock fan with one capable of of 17 to 27 CFM. The 60MM noctua Fan I already own is 17.19CFM and spins at 3000 rpm and draws 0.12amps.
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Now onto the trim POT.
It looks to me as if the number is 102 listed on it.
I believe it to be this trim Pot even though the 1 is a bit uninspired on my Pot in my photo. Making it a 1k ohm trim pot. note the +/- 25% figure in the specs
trim pot 102However, I have found this trim pot which says 202 on it and wonder if my trim pot is just poorly marked:
trim potPerhaps the circuit board savvy know exactly what is going with this trim pot, these 2 links are the closest I have found, and the second indicates a 2k ohm trim pot. Perhaps others with these Power supplies can bust out a magnifying glass and see the numbers on it.
Here it is with the Lid off.
If somebody wants close ups of various components, describe them and I will do my best to get a clear photo or relate whatever is written on them.
There are 2 areas, one on the side with the trim pot, and one on the side opposite the wire attachment area where there is direct contact with the casing. There is a thicker piece of aluminum which is screwed to the case itself. These have to be unscrewed before getting the bottom of the circuit board, I think additional heat sinks attached to the exterior of the case in these two areas could be beneficial.
This area on the side is the side which got real warm when it was making 37 amps. Some stickers have to be removed to get to these screws, and for now I am going to wait before proceeding to hear from those with more experience.I don't have any of that conductive white grease to paste on if a bunch gets smeared on removal in an attempt to get to the bottom of circuit board
I don't think I can get my multimeter on it from the top to take ohm readings.
