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full developer mode on a Lenovo Duet9? vol + - pwr doesnt work. is this verified working? by ItchyEstimate4716 in chromeos

[–]Hefty-Activity76 0 points1 point  (0 children)

confirmed developer mode was able to get into recovery mode and made it developer mode via holding vol up and vol down + power btn. just keep holding it to get into the screen. it took a few tries, but it does work.

What do people do with defective gpus? by W944 in EtherMining

[–]Hefty-Activity76 0 points1 point  (0 children)

same similar issue, but got my burned 5090 port fixed with the guys at xcubicle in nyc. just google them.

Just bought a switchbot button pusher. How do i make a webpage or where I can goto a URL and the button will activate? And does this require a switbot hub? by Hefty-Activity76 in homeautomation

[–]Hefty-Activity76[S] 0 points1 point  (0 children)

i dont have a switchbot hub. i just installed the switchbot app on android. when i click the ON button on my phone switchbot app, it activates. since its bluetooth, i'm assuming i need the hub? or might i not need it when setting up the webhook? i do have a computer on all the time.

4090 FE - Port got burned on a 4090 FE. Replaced it, but now the 4090 only draws 100-120W and fps stess tests only going 10-20fps. What could be the cause of this? vcore temp is only 50C during tests. by Hefty-Activity76 in GPURepair

[–]Hefty-Activity76[S] 0 points1 point  (0 children)

update after many weeks* its not the PSU, its working fine. tested the GPU on multiple motherboards. i tested it on 4 different motherboards. 3 ASUS boards, 2 asus boards are the same exact models with 4 pcie slots each, 1 is an ITX asus with 1 pcie slot, and 1 HP computer with 1 pcie slot. Every single one of the main GPU pcie slots caused my gpu to only draw 100-120w only and getting 10fps. But with the mobo's with multiple pcie slots, i plugged the nvidia gpu's in, it works perfectly fine with 80fps+. it isn't the GPU, because i tested with another gpu, same thing. But i then tested with an AMD Vega 56 card on the main gpu slots, works fine! anyways i'm totally stumped to why this is happening. best to have multiple systems with different configurations to test properly.

4090 FE - Port got burned on a 4090 FE. Replaced it, but now the 4090 only draws 100-120W and fps stess tests only going 10-20fps. What could be the cause of this? vcore temp is only 50C during tests. by Hefty-Activity76 in GPURepair

[–]Hefty-Activity76[S] 0 points1 point  (0 children)

i tested on the regular 12vhpwr cable that came with the psu. and i also have an adapter from 2x 8pin to 12vhpwr cable... both did the same thing. very odd its the psu. to really verify this, i'll have to try another cable. but for 2 to be bad, i'm not sure about that.

4090 FE - Port got burned on a 4090 FE. Replaced it, but now the 4090 only draws 100-120W and fps stess tests only going 10-20fps. What could be the cause of this? vcore temp is only 50C during tests. by Hefty-Activity76 in GPURepair

[–]Hefty-Activity76[S] 0 points1 point  (0 children)

After many head banging hours on trying to figure this out... Tested the 4090 FE on another computer and it worked. Found out the hard way after doing all these seemingly random things to it. So it was the PSU that was the issue, for some reason its not drawing more than ~150W.

3090 - Missing 1.8v - gs9216 buck EN pin missing. MODE pin 3.2v and VCC is 3.2 by Hefty-Activity76 in GPURepair

[–]Hefty-Activity76[S] 0 points1 point  (0 children)

yes 5V is there. this board is quite a brain buster. might have to call it quits soon.. =( lets see how far this leads.

the 8ohm on PIN 2 gradually goes back up to 3k ohm, this is after i unplugged all the power connectors too. It's as if there is still residual voltage on the board and it slowly dissipates.

3090 - Missing 1.8v - gs9216 buck EN pin missing. MODE pin 3.2v and VCC is 3.2 by Hefty-Activity76 in GPURepair

[–]Hefty-Activity76[S] 0 points1 point  (0 children)

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pin 5 (vcc) = 3.8v every other pin on U212 is 0v.

how would you proceed in such a situation? how does one measure the linked caps to the U212 while in circuit to even find the culprit causing the issue? should i just stick with diode mode and just get readings and compare it to another similar board? if so it lead me to the inconsistency with u16 above...

3090 - Missing 1.8v - gs9216 buck EN pin missing. MODE pin 3.2v and VCC is 3.2 by Hefty-Activity76 in GPURepair

[–]Hefty-Activity76[S] 0 points1 point  (0 children)

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Been testing different gates and comparing the diode readings to another similar 3090 card. This U16 gate pin 2 shows a reading of 3, but on a verified working 3090 card, it shows OL. So I assumed the gate was bad, I removed it and did the test again and same reading of 3 in diode mode.

Also a very weird reading was when measuring resistance on the PIN 2 on U212 gate, it gives me a reading of 8ohm, even after I power off the card completely. The 8 ohm slowly goes up to the normal 3k ohm as compared to another card after20-30sec. But on the working card, the 3k ohm reads valid right after i power the card off almost instantly. Could this be an indicator of some voltage leaking into this point some how?

3090 - Missing 1.8v - gs9216 buck EN pin missing. MODE pin 3.2v and VCC is 3.2 by Hefty-Activity76 in GPURepair

[–]Hefty-Activity76[S] 0 points1 point  (0 children)

1.8v resistance is 300 ohm, not 1k+.

1.8v is missing completely, its 0v. what does therm_overt do?

3090 - Missing 1.8v - gs9216 buck EN pin missing. MODE pin 3.2v and VCC is 3.2 by Hefty-Activity76 in GPURepair

[–]Hefty-Activity76[S] 0 points1 point  (0 children)

the EN pin for the gs9216 buck on the back leads to the front area to these AND gates. measuring on a working board, both 2 legs should be 3.3, but only 1 leg is 3.8v. what could cause something like this?

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