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Then do the connectivity test between those points and pins 1, 7, 8, and If possible, please check the voltage on 14 and post that. Once we figure out which output is supplying the Vddr and Vgpu, dataeheet can try modding the inverting inpout pin each output pin.
Well, nothing else to do but give her a try then. I wanna try and find some volt mods for it.
I feel for ya tho: I dont recall what the baseline Vddr is for the cards. Sounds like the vdd voltage right there.
Those are the outputs. My pop has the camera so I can’t take any at least not tonight.
F(IR,SMD), DataSheet|Picture – Electronic Parts – Censtry Electronics Co.,Ltd.
Well I looked over the datasheet and which pin do you think is likely to be it? Just odd the 13 is tied directly to that cap. BTW HF, this is a not a ti Keep a good eye on the voltage as you adjust the VR.
I would start with a 5kk VR just to be safe. We need to make sure its Vddr and not Vddq. The back of the card is almost blank except for one mosfet which reads “APME” There are also small 3 legged ic datasueet that read “PH0o BCP68” On the front of the card there are more things that look like regs. I’ll try and see if I can get some pics, but those are all the ic’s on the card so can anything be worked from that?
Give me a resistance reading for pin 4 and lets see if we can change the Vddr by modding this RT IC. If you dont get an increase after turns, then I would stop and we need to take another look at it. Those are all the ICs on the board. Ok, pin 5 is the actual output for the RT ICs. Do a resistance between 13 and GND and post what you find. Odd pcb layout vmods. I’m almost sure that the 2. If Output Pin 1 is supplying Vddr, then we try modding to pin 2.
The card is a pro I just got back from rma and it doesn’t look anything like the one I had, layout wise at least. That sounds a bit low for Vddr, thats probably vddq. Anyone make sense of dataseet one? Pin 13 is the inverting input for output pin There is nothing datasyeet really.
The LM chip is prob controlling either Vgpu or Vddr. Oddly enough I found a connection between the ricktek chip and the cap measuring 2.
IRF7413 Datasheet PDF
Got some pics now. I found connectivity between pins 13 and a cap on the back of the card that reads 2. If the resistance between 13 and GND is ohms, then a 1K VR is gonna lower resistance by a solid 60 ohms, which may be to much to start with since we are shooting in the dark right now.
Resistance between pin 1 and a ground is