Some of you might have known I got a mysterious package comprised of three motherboards and two PSUs. One of the PSUs was this Allied AL-8400BTX, and the other was a very old 230W Sun Pro. (worth nothing,seriously )
As I had some free time in my hands, and after failing at fixing my K7VZA motherboard (I'll start up a thread about this later - maybe some of you can chime in and tell me what to do at this point), I said why not give this PSU a shot. After all, it has a 6 pin PCI-E connector.
So, first inspection revealed the usual stuff - bad caps - one bulging 1000uF 10v (for pete's sake, why 10v? Was 16v not cheaper?), and another two bulgers of the exact same value and diameter on the 5v rail.
Other noticeable stuff was the heatsinks were quite thin, but tall enough. I don't know what's up with Allied on these, as my other AL-8400BTX ( just to clarify a few things - there are two versions - one with a glossy, tiger-like texture surface, and a dull matte gray version. The other one that I'm going to tell about is the matte version.) has thicker heatsinks, but they're shorter. Another thing that is different on these is the grille - the matte grey version has a honeycomb pattern arranged to form a square while the glossy version has the pattern extended on the whole side of the PSU.
One common thing across both revisions? Both versions had ERL-28 transformers, although with rounded edges unlike the usual ERL-28 which has square edges. (example being my 230W Sun Pro.)
The first thing I did was remove the bad caps. Since I wasn't going to do a full recap at the moment (I have to stock up on caps - even if they're GP caps, I had no problems in using Samwha RD 2200uF 16v 105*C caps.) I simply reused some caps from another Deer (a solid low end 250W max Premier rated for "400W".)and also took the bigger transformer (EI-33 - still an slight improvement over ERL-28, don't ya think?) and installed it in there. The caps I used were two 1000uF 16v radioactive green Yang Chun (Saturn) cap and a Panasonic FL 1000uF 16v pull from a MB for the 5vSB.
Plugged it in,fired it up. Voltages came in spec. For some funny reason the thermistor is glued to an Su'scon 1000uF 16v cap. (probably responsible for 12v, as the spot it is in allows for a much bigger cap, about the same diameter as my Samwha RD 2200uF 16v caps.)
Some pictures attached.
Stay tuned, as I got some more stuff in the works this month.
-Delux ATX-450W P4 complete overhaul - 120mm case
-Allied AL-A400ATX complete overhaul
-Linkworld LPK19-30 460W
-Mercury MAV-230 230W/ Sun Pro teardown/ list of parts.
....maybe an complete overhaul of this Allied too?
As I had some free time in my hands, and after failing at fixing my K7VZA motherboard (I'll start up a thread about this later - maybe some of you can chime in and tell me what to do at this point), I said why not give this PSU a shot. After all, it has a 6 pin PCI-E connector.
So, first inspection revealed the usual stuff - bad caps - one bulging 1000uF 10v (for pete's sake, why 10v? Was 16v not cheaper?), and another two bulgers of the exact same value and diameter on the 5v rail.
Other noticeable stuff was the heatsinks were quite thin, but tall enough. I don't know what's up with Allied on these, as my other AL-8400BTX ( just to clarify a few things - there are two versions - one with a glossy, tiger-like texture surface, and a dull matte gray version. The other one that I'm going to tell about is the matte version.) has thicker heatsinks, but they're shorter. Another thing that is different on these is the grille - the matte grey version has a honeycomb pattern arranged to form a square while the glossy version has the pattern extended on the whole side of the PSU.
One common thing across both revisions? Both versions had ERL-28 transformers, although with rounded edges unlike the usual ERL-28 which has square edges. (example being my 230W Sun Pro.)
The first thing I did was remove the bad caps. Since I wasn't going to do a full recap at the moment (I have to stock up on caps - even if they're GP caps, I had no problems in using Samwha RD 2200uF 16v 105*C caps.) I simply reused some caps from another Deer (a solid low end 250W max Premier rated for "400W".)and also took the bigger transformer (EI-33 - still an slight improvement over ERL-28, don't ya think?) and installed it in there. The caps I used were two 1000uF 16v radioactive green Yang Chun (Saturn) cap and a Panasonic FL 1000uF 16v pull from a MB for the 5vSB.
Plugged it in,fired it up. Voltages came in spec. For some funny reason the thermistor is glued to an Su'scon 1000uF 16v cap. (probably responsible for 12v, as the spot it is in allows for a much bigger cap, about the same diameter as my Samwha RD 2200uF 16v caps.)
Some pictures attached.
Stay tuned, as I got some more stuff in the works this month.
-Delux ATX-450W P4 complete overhaul - 120mm case
-Allied AL-A400ATX complete overhaul
-Linkworld LPK19-30 460W
-Mercury MAV-230 230W/ Sun Pro teardown/ list of parts.
....maybe an complete overhaul of this Allied too?
Comment