R28 seems to be more like 5R1 (5.1 ohms ) .

bogdanpaulb wrote on 2023-02-25, 19:41:

R28 seems to be more like 5R1 (5.1 ohms ) .

Thanks for reply 😃 I was thinking on that, but I’m not was sure because that seems more like a dot, maybe some manufacturers don’t put the r on resistors and just put a dot? And the resistor above (r34) there’s a way to determinate the value? Maybe I can salvage that resistor from another gpu I see is very common, only on shape of course.

For that i need a higher resolution pic and better focused , to be able to see to what traces is that resistor connected and where they lead .

bogdanpaulb wrote on 2023-02-26, 08:48:

For that i need a higher resolution pic and better focused , to be able to see to what traces is that resistor connected and where they lead .

download/file.php?mode=view&id=158439

Is the pin numbered (3) i think it goes to the missing resistor (R34) maybe it's a 0 ohm resistor? I have checked the AGP pinout 1.5v (from this https://old.pinouts.ru/Slots/agp_pinout.shtml ) and this is a "RESERVED" pin (correct me if I'm wrong)

bogdanpaulb wrote on 2023-02-25, 19:41:

R28 seems to be more like 5R1 (5.1 ohms ) .

Its Sapphire (PCpartner) point of view. They always put 5R1 resistor, but all another manufacturer - 0R
A2 must be tied to ground at the 1.5V VideoCard (AGP3.0).
A3 - short to ground for 8x (Vref=0.35V) or must bee flow (or put to 3,3V) for 4x (Vref=0.7V)

Video
https://fccid.io/M698836/Schematics/Schematics-414550.pdf
Matherboard
https://elektrotanya.com/ecs_k8m800-m3_rev_1. … ownload.html#dl

PS. I was got big problem with HD2600pro AGP at Jetway K8T800-AS.
If you motherboard not good for noise\stability 1.5V AGP power (or engeener`s are very alternative), you not get stable 8x