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| Asrock RX580 - strange behavior https://vlab.su/viewtopic.php?f=48&t=104324 |
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| TheMArcos [ 29 июн 2020, 04:02 ] | |
| Заголовок сообщения: | Asrock RX580 - strange behavior |
Look Guru's, I have the card here that has a very peculiar copportation, the card only has 12v, 5v and 3.3v. on GS2093 I do not have the voltage of vcc or enable only Vin (3.3v). but if I disconnect the 12v auxiliary power cable (6 pins), 5v appears on the Vcc and 3.3v on the buck's enable, I also noticed that these 2 capacitors are missing on the back of the board, someone would have a donor to check the values? I noticed that the C493 and C931 are from the Vcc power? already grateful. |
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| TheMArcos [ 12 авг 2020, 16:29 ] | |
| Заголовок сообщения: | Re: Asrock RX580 - strange behavior |
I was able to replace the Gs9230 (via alixpress, which takes time), and recover the components that were torn off at the back of the pcb, the 0.9v came back, but another problem appeared, when the pci supply cable is connected to the card, the 0.9 disappear, add the 5v of the vcc and 2.7 in the enable. I also noticed that the gs7103 doesn't have the vcc voltage (5v) I tried to follow where this power comes from with continuity tests of the multimeter, but the most I managed to get was on the PWM vcc, has anyone ever been through a situation like this? any suggestion? |
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| TheMArcos [ 25 сен 2020, 07:47 ] | |
| Заголовок сообщения: | Re: Asrock RX580 - strange behavior |
hi guys, Replaces the up9505 and the memory voltages went up, PLL, however I don't have Vgpu, I noticed that I have 0V on one of the pins of the logic port and, this voltage should come from the u100 (74AUP1G57PM) that is close to bios. however I have 0v on pin 6, and I didn't understand what that pin does and where it comes from. his resistance to the gnd is infinite. follows an image for clarification, I would like a tip, about what would be this sign that is missing and what to do to enable it. already replaces Ci but without result. pin 1:3.3v pin 2:0v pin 3:3.3v pin 4: 0v pin 5: 3.3v pin 6: 0v  poems about long time friendship
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| aleksros [ 25 сен 2020, 12:06 ] | |
| Заголовок сообщения: | Re: Asrock RX580 - strange behavior |
signal PERST from motherboard. slot PCI-E16 contact A11. check that signal on MB without videocard. try change U100 |
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| TheMArcos [ 29 сен 2020, 07:29 ] | |
| Заголовок сообщения: | Re: Asrock RX580 - strange behavior |
aleksros писал(а): signal PERST from motherboard. slot PCI-E16 contact A11. check that signal on MB without videocard. try change U100 hello, I changed u100, 3.3v in powerok in pwm appeared, but still without gpu voltage, I noticed that I have 3.3v in VHOT, is this correct or is it a false alarm? |
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