I recently purchased a used McIntosh MS300 music server built in 2005. It's a PowerPC-based motherboard, CD-ROM, and hard drive powered by a small 65-70W switching power supply.
The power supply notoriously fails due to bad/old caps, then usually takes out the mobo. When I popped the hood, I did in fact notice a 1000uF filtering cap was bulging (later tested at 47pF), so I promptly replace all the thru-hole electrolytic caps on the power supply with Panasonics and a few Nichicons. Everything good so far.
I'm now focusing on the motherboard, which uses all surface mount caps. Any advice on whether I should I replace these as well...?
The power supply notoriously fails due to bad/old caps, then usually takes out the mobo. When I popped the hood, I did in fact notice a 1000uF filtering cap was bulging (later tested at 47pF), so I promptly replace all the thru-hole electrolytic caps on the power supply with Panasonics and a few Nichicons. Everything good so far.
I'm now focusing on the motherboard, which uses all surface mount caps. Any advice on whether I should I replace these as well...?
Comment