I replaced 10 MCZ and 1 MBZ swollen/leaky Rubys in a SFF GX280, which made it POST, boot, and run Memtest 4 passes using a spare PS before I turned it off.
Put on a tester it failed on 12V and its fan wouldn't run, so I opened up its PSU to find 2 each of Lelon and Taicon, and 11 OST. The 10x25 1200uF 16v RLS is clearly junk. The only thing here close is Panasonic FM, which as I read the sheets is actually better. It has 3 10x20 2200uF 6.3V, 2 of RLP, and 1 of RLS. 1 RLP is clearly junk. All I have that's close to either is Nich HE in 10x25. It's only slightly worse in specs compared to RLS for both ESR and ripple. The RLP specs about the same as HE in ESR, about 2/3 of HE ripple. A 470uF 10V RLS is also junk, which I could replace with Panasonic FR. Last on the end with the junks is a (popped bottom) 12x20 2200uF 10V RLS, which my only physical matches for are Nich 10V PS (good ESR, but only 53% of ripple) and 16V HN (good ESR, 43% higher ripple). I also have an 85C .04 ESR 12x25 Elna.
At the other end are 2 18x40 RLG 470uF 200V that I could replace today with Nich PZ, plus a 100uF 35V and a 10uF 50V I can't read series from without removing first.
People here often say replace all OST, while others suggest OSTs that haven't already failed in a hot environment amount to tested OK. Should I replace everything OST above 470uF? Everything OST 470uF up? Everything OST? Just replace those tested bad? Is there something I don't have a good enough match for?
This GX280 is for my own use, mostly for keeping Linux developers honest WRT old hardware. It's the first Optiplex series with PCIe instead of AGP. I'd rather not take more than minimal risk on having to go back inside this miserable little hard-to-work-on PS. Just the same, if I can't proceed with caps I have on hand, it won't get done til next year, yet another project stalled waiting on parts at the change of a year.
Suggestions and recommendations, other than junking the GX280, welcome.
PS, anyone know a good source for 12V 60mmX15mm fans like these use?
Put on a tester it failed on 12V and its fan wouldn't run, so I opened up its PSU to find 2 each of Lelon and Taicon, and 11 OST. The 10x25 1200uF 16v RLS is clearly junk. The only thing here close is Panasonic FM, which as I read the sheets is actually better. It has 3 10x20 2200uF 6.3V, 2 of RLP, and 1 of RLS. 1 RLP is clearly junk. All I have that's close to either is Nich HE in 10x25. It's only slightly worse in specs compared to RLS for both ESR and ripple. The RLP specs about the same as HE in ESR, about 2/3 of HE ripple. A 470uF 10V RLS is also junk, which I could replace with Panasonic FR. Last on the end with the junks is a (popped bottom) 12x20 2200uF 10V RLS, which my only physical matches for are Nich 10V PS (good ESR, but only 53% of ripple) and 16V HN (good ESR, 43% higher ripple). I also have an 85C .04 ESR 12x25 Elna.
At the other end are 2 18x40 RLG 470uF 200V that I could replace today with Nich PZ, plus a 100uF 35V and a 10uF 50V I can't read series from without removing first.
People here often say replace all OST, while others suggest OSTs that haven't already failed in a hot environment amount to tested OK. Should I replace everything OST above 470uF? Everything OST 470uF up? Everything OST? Just replace those tested bad? Is there something I don't have a good enough match for?
This GX280 is for my own use, mostly for keeping Linux developers honest WRT old hardware. It's the first Optiplex series with PCIe instead of AGP. I'd rather not take more than minimal risk on having to go back inside this miserable little hard-to-work-on PS. Just the same, if I can't proceed with caps I have on hand, it won't get done til next year, yet another project stalled waiting on parts at the change of a year.
Suggestions and recommendations, other than junking the GX280, welcome.
PS, anyone know a good source for 12V 60mmX15mm fans like these use?
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