HIS IceQ HD4670 AGP Vmod

[Macsbeach98]

In the first pic I have put small red dots (any dot will do) on the place to attach your wire for VGPU Trimmer is 100k set to max resistance where I have written VGPU and VMem is where you measure the voltages.
Its an old mod I used to use the full molex plug for measuring voltages these days I remove the female pin out of the plastic plug and just put heatshrink on them meter probe pushes into them nice.

In the second pic its again a 100k trimmer connected to pins 3 & 6 of the 8 pin single phase mem controller I have put near the corners of the controller the numbers 1,4,5,8 so you can see how the pins are numbered.

[Aleslammer]

They maybe both HIS but memory controller on mine is on the back and VGPU area is laid out the same but has no components connected above the three red dots @`R619 & C619 locations.







Sorry pics a little lacking, also just notice a cap showing a little bulge.

[Macsbeach98]

Ok measure the resistance from the red dots to ground it should still be Ok to use.
What is the actual number on the memory controller?
Numbers on both controllers actually.

[Aleslammer]

Thanks!

Mem=P6101BU8/VD892U
GPU=P620180/VLP89B, Getting 2.52 @ 20K top dot area bridged with a component

[Macsbeach98]

Top dot bridged with a small black resistor to the top dot next to it?
That is right the same as mine.

Here are the layout pics for both controllers there will be a dot on them or a mark on the board denoting pin 1 check that the resistance on the feedback pin is the same as the top dot.
For the mem controller uP6101 pin 6 is feedback you dont have to connect ground to pin 3 it can be ground anywhere on the card if you find that is easier.