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Текущее время: 06 май 2024, 05:18
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Сообщения без ответов | Активные темы
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Pandemonium6
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 08 сен 2021, 21:05 |
Продвинутый форумчанин |
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Зарегистрирован: 22 июл 2021, 03:06 Наличности на руках: 1,140.72
Сообщения: 762 Откуда: Holand
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seanhonnor писал(а): Try to listen to "Dzetta", "Noize MC", "Drummatix" maybe you will like them too. Hehe I will try to add some songs to to my playlist but for me all Artik & Asti songs are very good. I know, all songs sound similar hehe but I like such music hehe. Also I like Артем Качер, Мари Краймбрери, Wintaz, S.N.E.G, Eva Loras, Mokhito and some unknown artists from "Best Russian club music" from youtube.. hehe. I feel this music differently than Russian speaking natives hehe
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seanhonnor
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 10 сен 2021, 23:07 |
Интересующийся |
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Зарегистрирован: 02 июл 2021, 12:36 Наличности на руках: 73.54
Сообщения: 60 Откуда: Омск
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westcoast писал(а): You have identical working card, there is one choice: When drmoses come from china, solder them but dont start the card. Compare resistances of both cards element by element. If hardware fault there will be difference somewhere Ok, i'll try. But 1-3% difference i think have no sence. I think there must be a big difference in case of hardware fault. I will check. And i will make a wire with small fuses like suggested me Pandemonium6, maybe it will safe my drmoses ) Pandemonium6 писал(а): Hehe I will try to add some songs to to my playlist but for me all Artik & Asti songs are very good. I know, all songs sound similar hehe but I like such music hehe. Also I like Артем Качер, Мари Краймбрери, Wintaz, S.N.E.G, Eva Loras, Mokhito and some unknown artists from "Best Russian club music" from youtube.. hehe. I feel this music differently than Russian speaking natives hehe heh i glad that you likes Russian music... its amazing :)
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seanhonnor
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 13 сен 2021, 23:55 |
Интересующийся |
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Зарегистрирован: 02 июл 2021, 12:36 Наличности на руках: 73.54
Сообщения: 60 Откуда: Омск
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Pandemonium6 писал(а): I feel your problem is in mosfet drivers. Remove all of them and install new one by one. I talked to one friend and he had a card after replacement a mosfet + driver and the next phase failed. He replaced all these small ICs and a mosfet and it started to work.
This video card does not have drivers as a separate chip. It uses drmos FDMF3035 - This is a chip, inside of which there is both a driver and a mosfet in one case, thats why it called DrMos (Driver + Mosfet). In this case, two options are possible: defective drmos or poor soldering. But this card uses 2N7002DW doublers - they can be a problem. I took off all the factory doublers, a tape came to me from China, where there are 100 new doublers, I will put them on the board. When the new FDMF3035 drmoses arrive, I will install them and, according to your advice, I will use a wire with 0.5-1A fuses on the positive wires for testing. For example, the Asus Rx470 Strix / Mining edition uses separate chips: driver (RT9611CGQW) and mosfet (M3054M for "Strix" version of videocard). There most often mosfets burn out precisely because of a bad driver. Poyraz__ писал(а): Я думаю твоя проблема с дублерами
Я проверю это скоро, спасибо
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mramil
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 18 сен 2021, 22:45 |
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Зарегистрирован: 13 мар 2021, 00:02 Наличности на руках: 40.17
Сообщения: 41 Откуда: Москва
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Poyraz__ писал(а): Я думаю твоя проблема с дублерами Да были такие карты—дико греются demos-ы. Лежали донорах пару лет. Недавно поменял даблеры с обвязками - заработали
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Pandemonium6
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 12 окт 2021, 05:48 |
Продвинутый форумчанин |
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Зарегистрирован: 22 июл 2021, 03:06 Наличности на руках: 1,140.72
Сообщения: 762 Откуда: Holand
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seanhonnor писал(а): I'll check it out soon, thanks Do you have news?
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seanhonnor
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 12 окт 2021, 21:32 |
Интересующийся |
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Зарегистрирован: 02 июл 2021, 12:36 Наличности на руках: 73.54
Сообщения: 60 Откуда: Омск
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Pandemonium6 писал(а): Do you have news? Nope. Waiting for drmoses. i'll write back
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seanhonnor
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 07 фев 2022, 23:57 |
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Зарегистрирован: 02 июл 2021, 12:36 Наличности на руках: 73.54
Сообщения: 60 Откуда: Омск
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Pandemonium6 писал(а): Still nothing? Still burning drmos. If you solder the first chip from the bottom (the first power phase), the video card works fine and gives an image. If you solder any of the top ones, then it burns out at startup and even when you try to start the card from a laboratory power supply. Any of these two can burn, it's random. Fuses don't help. On a laboratory power supply, in the presence of all the chips on the board, if you raise the current above 0.5 amperes, then one of the upper drmos burns out. I conclude that the problem is somewhere in the part of the additional power supply of the video card, since it works without problems along the PCI-E power line. Any ideas? With the fact that I had already replaced almost everything that could be replaced, now I began to check every small ceramic element around the drmos. I unsolder each one, measure and write down the value in a notebook to find deviations in the nominal values to find the bad element on the board. No more ideas for now. The Video Card is mine, so I am not limited by time, I do it from time to time.
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westcoast
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 08 фев 2022, 04:43 |
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Зарегистрирован: 01 окт 2020, 02:15 Наличности на руках: 113.19
Сообщения: 145 Откуда: europe
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There are similar problems with gigabyte rx460, their solution is: replace everything at once - PWM, drivers, MOSFETs I found an interesting pattern on that one: slightly decreasing resistance on each next phase: https://hardforum.com/threads/solved-rx ... 1045216829It may indicate damaged semiconductor anywhere in the crashed phase, i did not went for repair of the phase so can't tell 100%, but this seemed to be the only logical thing to me. Maybe you can discover anything like that on rx470
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seanhonnor
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 08 фев 2022, 12:09 |
Интересующийся |
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Зарегистрирован: 02 июл 2021, 12:36 Наличности на руках: 73.54
Сообщения: 60 Откуда: Омск
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westcoast писал(а): their solution is: replace everything at once - PWM, drivers, MOSFETs i've replaced all of the doublers, drmoses and PWM controller. Problem is somewhere else
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seanhonnor
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 08 фев 2022, 23:53 |
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Зарегистрирован: 02 июл 2021, 12:36 Наличности на руках: 73.54
Сообщения: 60 Откуда: Омск
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Pandemonium6 писал(а): I replaced NCP81022 some days ago and also first drmos passed away. It was only drain to source KZ. The gate was intact. It was my fault, I did not solder this chip properly. I left two or three pins floating, not soldered properly. After I corrected myself it started to work. i'va resoldered NCP for three times))
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seanhonnor
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 15 мар 2022, 23:52 |
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Зарегистрирован: 02 июл 2021, 12:36 Наличности на руках: 73.54
Сообщения: 60 Откуда: Омск
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In general, the problem was localized - this is the second phase. When installing the drmos, the 5v line began to work unstably, after it the 12v line worked unstably, the voltage began to float. As a result, the drmose completely opened and burned. There was a suspicion of a resistor, after replacing nothing has changed. Also, there were attempts to check the elements around - everything is normal. Maybe the problem is somewhere very deep - maybe in the interlayer, I don't know. I decided to disable this phase, the video card works fine in three phases. It is a pity that it was not possible to solve completely. But I think that's enough adventure
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suhar777777
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 16 мар 2022, 14:26 |
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Зарегистрирован: 04 сен 2014, 16:07 Наличности на руках: 126.23
Сообщения: 76
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seanhonnor писал(а): But I think that's enough adventure Отлично!!! 8 месяцев мытарств, но хоть работает) Тоже возьму на заметку.
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seanhonnor
[ТС]
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Заголовок сообщения: Re: Sapphire RX470 mining edition quad - выжигает дрмос на первой фазе Добавлено: 16 мар 2022, 14:56 |
Интересующийся |
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Зарегистрирован: 02 июл 2021, 12:36 Наличности на руках: 73.54
Сообщения: 60 Откуда: Омск
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suhar777777 писал(а): Отлично!!! 8 месяцев мытарств, но хоть работает) Тоже возьму на заметку. Да, хотя бы так :) Только в таком случае, для игрулек надо ограничить Power limit процентов на 20-25 на всякий случай, во избежании перегрузки. В Afterburner или на уровне прошивки биоса )
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Вы не можете начинать темы Вы не можете отвечать на сообщения Вы не можете редактировать свои сообщения Вы не можете удалять свои сообщения Вы не можете добавлять вложения
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