VRM outputting voltage but not any current.

[ShmoeMo]

Hey guys. Recently cut the vrm off a dead asus 780 and now am wanting to get it ready to put on a 750 ti. Problem i am facing after hooking up the enable pin to 3.3v is that the vrm is outputting 1.4 odd volts BUT it cant supply any current. Just putting a simple 8ohm speaker across the output makes it drop to 200mv. The controller is an ASP1212 (Link below)
Is there something i have missed when enabling the controller?
https://www.infineon.com/dgdl/pb-asp1212.pdf?fileId=5546d462533600a40153567f4b2128a4

[Guest Ziken (BANNED)]

hello, activate this controller solder VCC, EN and PSI to 3.3V  

[Noxinite]

2 hours ago, Ziken said:

hello, activate this controller solder VCC, EN and PSI to 3.3V  

? ?

Edited September 4, 2019 by Noxinite

[ShmoeMo]

15 hours ago, Noxinite said:

? ?

Why the angry faces Noxinite?
I have only just woke up so im pretty slow at the moment XD

[ShmoeMo]

Also just found i dont even a supply voltage to the controller. I swear i had one when i first cut the vrm off. Ill put a dc -dc converter for the 3.3 and will post and update after that

 

[ShmoeMo]

Ok then, i have a 3.3 reg setup on the controller now so PSI, VCC and EN are getting the required voltage and now im getting 3.8 volts of the vrm but still not current capabilities. the 8 ohm speaker still drops it to like 200mv. Also, im guessing the VRTN pin is for feedback?

Edited September 5, 2019 by (PTP) ShmoeMo

[Noxinite]

8 hours ago, (PTP) ShmoeMo said:

Why the angry faces Noxinite?
I have only just woke up so im pretty slow at the moment XD

 

[ShmoeMo]

14 hours ago, Noxinite said:

 

Thats pretty messed up, sorry to hear that he did that to you and others. How has he not been banned from here yet?