Re: Case Mod for External Fan -- Dell SX280



There's a pinout on the label and pins 2, 3, 4 measure 12.3 VDC.

I don't have a way of testing amps though.

Re: Trying to eradicate 85°C caps

While I'm at it, given the hot temps in the case, what do you recommend as replacements for the Nichicon VR(M) 16v 220uF caps rated at 85°C?

Thanks!

My Dell SX280 came from a hot environment and it's already an oven inside, so I want to replace the 85°C caps to avoid problems later on.

There's one tiny 16v 100uF that says 85°C on the side. Might be Rubycon, not sure. What should I replace this with?

After recapping my Dell SX280, my next project is to add a large external fan mounted on the removable cover (see pic). I was going to use a 5-volt fan to power it via USB but I couldn't find one large enough, so I'm going to use a regular 12-volt fan instead.

1. I'm planning to mount the fan on the outside of the cover, just under the word DELL. There's not much ventilation on the sides for hot air to escape. I can drill some holes on the sides, but not a lot. Would it help if I drilled holes on the cover, surrounding the spot where I mount the fan?

2. How should...

Re: Recapping Dell SX280

Hello, I too had a Dell SX280 with bad caps. I just replaced 4 of them and the PC boots again, so that's good. I'm wondering if I have additional caps that should be replaced?

-- 6.3v 2200uF, red lettering says 49IIITW, has a letter M in a square
-- 6.3v 1800uF, red lettering says 48IIWY
-- 6.3v 150uF, A425
-- 6.3v 820uF, Rubycon MBZ T0419
-- 16v 220uF, Nichicon VR(M) B0435
-- 16v 1500uF, Nichicon HN(M) H0431
-- 16v 1000uF, KZG 49 B(3) (these are maroon colored)
-- 25v 22, has a letter R in...