Dead corsair VS450 with blown TNY chip (cwt)

[zunasthegreat]

I have this Corsair VS450 PSU which lies dead and has an exploded TNY chip. Upon removing primary side parts like mosfets, the bulk cap and the bridge rectifier I've found that the primary cap is also a goner. (Photos)
The mosfets and the diode are fine and survived the collapse it seems. The TNY chip is shattered and from the online review/sources it was probably a TNY176~177.

[CapLeaker]

Very typical failure.

[zunasthegreat]

Around the TNY chip there are 4 caps, 2X 220uF 35V and 2X 10uF 50V. All junk JUN-FU WG showing horrible reading. I replaced the 220uF ones with ZLH 220uF 35V and the 10uF ones with Nichicon SV 10uF 35V. Changed all the secondary ones too from Capxon/Aishi/JunFu into ->

3.3V - 2X KY 2200uF 10V
5V - KY 2200 10V + KY 1000uF 16V
12V - 2X Rubycon ZLH 1800uF 16V (*no space for more than 10mm. Old were Capxon KF 2200uF 16V)
-12 - Rubycon ZLH 330uF 16V (who uses 1000uF caps here?)
5VSB - Nichicon HV 1500uF 16V + Nichicon PW 1000uF 10V

PG Cap near sitronix chip - Nichicon PW 1000uF 10V here

For the TNY chip I've placed a socket which I don't know if its a good idea cause the IC seems to need the pcb for heat dissipation. The new chip is a TNY178 and I've added a small heatsink on top. For bridge rectifier I used the PBU805 and I also changed the mosfets. The PFC one is a K3568 and the main switchers are now 2X K3569 which I had in stock. These are small updates 8A->10A (main) 10A->12A (PFC).


Well the psu *works*!!! even with that 100uF 400V cap! New cap will arrive soon and I'll do more testing. No room for more than 25mm diamater for the primary cap.

[CapLeaker]

I see you done a full blown upgrade. What did you order to replace the main filter cap with?