Hey guys,
So as you may/may not be aware, I was having some problems with my Optiplex GX150 (Pentium III). Turns out there were a crapload of G-Luxons and Teapos in the power supply, two of which had notably failed. So after quite a bit of questioning regarding parts, I finally made an order. They came yesterday, and I now have it finished.
Caps I used:
Panasonic FC: I used these for all of the large Low-ESR filtering caps on the secondary side. I also used FCs predominatley for the coupling capacitors and other small-ish capacitors. They are a good median between low-ESR and GP, and are suitable for power supply filtering.
Nichicon PW: I used these for a few stray coupling caps that I could not find in Panasonic FC (which I initially planned on using for the entire supply). PWs are also on the line of low-ESR/GP.
Nichicon PJ: I used only one of these because I could not find the value in either FC or PW. I used it to replace a coupling-type capacitor.
Panasonic CE: I used these "big cans" for the voltage doubler/PFC-type circuit on the input. These are rated for 200V and 330uF. I chose these over UCC KMH because of their higher ripple current rating.
All capacitors are rated at 105*C.
I did run into one issue though. The one Panasonic FC at the end of the PCB is too tall and hits the power supply's slanted enclosure. It was kind of too late for me to try to alter it's position after I got it soldered in already and leads cut, so I hammered away at the metal enclosure until it fit.
Another problem formed. The fan that lays on this slanted part of the enclosure is now too close to the lid of the Optiplex's case, so...out of pure laziness. I'm leaving the Optiplex's case cracked open a little bit. Honestly, I think it would be better off with a little bit more air in that poor oven of a case. And it's not getting heavy use, so whateverrr....
If anyone plans on doing the same, make sure one of your 2200uF 10Vs are a bit shorter than the others OR bend it horizontally so it lies on it's side.
Otherwise, it was a great success. The computer, which was running horrendously slow before the recap is now up to the mind-boggling speed that it held in 2003...Well not quite...but it sure as hell isn't as bad as it was before.
Total cost wound up being about $20...so you decide if you want to invest in it or not. I think it's a decent investment, not the best, not the worst. But it was very satisfying.
Cheers. Enjoy the pictures.
So as you may/may not be aware, I was having some problems with my Optiplex GX150 (Pentium III). Turns out there were a crapload of G-Luxons and Teapos in the power supply, two of which had notably failed. So after quite a bit of questioning regarding parts, I finally made an order. They came yesterday, and I now have it finished.
Caps I used:
Panasonic FC: I used these for all of the large Low-ESR filtering caps on the secondary side. I also used FCs predominatley for the coupling capacitors and other small-ish capacitors. They are a good median between low-ESR and GP, and are suitable for power supply filtering.
Nichicon PW: I used these for a few stray coupling caps that I could not find in Panasonic FC (which I initially planned on using for the entire supply). PWs are also on the line of low-ESR/GP.
Nichicon PJ: I used only one of these because I could not find the value in either FC or PW. I used it to replace a coupling-type capacitor.
Panasonic CE: I used these "big cans" for the voltage doubler/PFC-type circuit on the input. These are rated for 200V and 330uF. I chose these over UCC KMH because of their higher ripple current rating.
All capacitors are rated at 105*C.
I did run into one issue though. The one Panasonic FC at the end of the PCB is too tall and hits the power supply's slanted enclosure. It was kind of too late for me to try to alter it's position after I got it soldered in already and leads cut, so I hammered away at the metal enclosure until it fit.
Another problem formed. The fan that lays on this slanted part of the enclosure is now too close to the lid of the Optiplex's case, so...out of pure laziness. I'm leaving the Optiplex's case cracked open a little bit. Honestly, I think it would be better off with a little bit more air in that poor oven of a case. And it's not getting heavy use, so whateverrr....
If anyone plans on doing the same, make sure one of your 2200uF 10Vs are a bit shorter than the others OR bend it horizontally so it lies on it's side.
Otherwise, it was a great success. The computer, which was running horrendously slow before the recap is now up to the mind-boggling speed that it held in 2003...Well not quite...but it sure as hell isn't as bad as it was before.
Total cost wound up being about $20...so you decide if you want to invest in it or not. I think it's a decent investment, not the best, not the worst. But it was very satisfying.
Cheers. Enjoy the pictures.
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