tagan 480w vmod

[chroma]

Black, brand new and sitting happily at stock (not for long..) Word from a friend, pots can be soldered onto the pcb, to adjust the voltage rails so I was wondering if I could skip cutting the vsense wires, soldering to ground etc. Pcb has indeed empty spots to solder but I'm no psu expert so I'm asking some insight from someone who has modded a tagan before. Also a pot found inside (with some epoxy on it) adjusts the ovp? When does the ovp kicks in for the various rails..? Any comments, suggestions are welcome. thanks :)

[Hell-Fire]

Unless he can show you pics of the mod, and a working psu after the mod...I wouldnt do the mod until further researching.

Just because there may be "points" on a pcb to solder something that looks like it is missing, doesnt mean it is a good thing to do. The pcb circuit layout warrants that they skipped putting something there, and the circuit loops are functioning without it. Adding a pot to that point may have unforseen problems.

However, adding resistance for the most part will not cause problems.

If you are certain that those points are for VRs, then shouldnt cause a prob to add them and see if the rails increase.

Can you take a pic of the inside of the psu?

That internal pot you refer to...could be OVP/OCP, or could be a rail VR...never know till you try.

The OVP varies from psu to psu....again, you wont know till you try. Or until you look up more info on the psu. Most manuals will have the OVP kick-off listed.

[chroma]

Thanx Hell-Fire

The empty spots were meant for resistors as depicted on the pcb itself. I'll try to borrow a camera for a pic. The manual gives a 5% regulation range, which is not very promising (max 3.3 at 3.45) hope I'll be able to mess around with the ovp.

[Hell-Fire]

My understanding of what they typically mean by "Regulation Range" is that that is the value that the psu will operate under per given voltage rail.

It means that the 3.3v rail will operate within +- 5% of that rail...or between 3.135-3.465v.

[Endre]

Does it have sense lines for +5v and +12v? This PSU seems to be really good, and a friend can get it for me cheap, so I'm seriously considering this PSU. If it doesn't have the +5v/+12v sense lines and no pots to adjust them we need that mod! :)

[DjTonic]

chroma what is with your pics?

Maybe external pots will helps to mod it into OCZ PowerStream :D

Both PSUs are very similar :)