| Ремонт: Ноутбуков, Компьютеров https://vlab.su/ |
|
| Sapphire R9 390 nitro no display https://vlab.su/viewtopic.php?f=48&t=100421 |
Страница 1 из 1 |
| ilie321 [ 06 мар 2020, 20:08 ] | |
| Заголовок сообщения: | Sapphire R9 390 nitro no display |
Вложение: 20200306_183346.jpg Hello i have an r9 390 that has all voltages ok. It is detected in windows if i use second card. I write last bios with atiflash. Maybe ram voltage not ok? 1.500V only if fan connected(my first amd gpu open). should be 1.6V? Any ideea? Thank you. |
|
| ilie321 [ 09 мар 2020, 09:16 ] | |
| Заголовок сообщения: | Re: Sapphire R9 390 nitro no display |
Anyone? Thanks |
|
| aleksros [ 09 мар 2020, 12:14 ] | |
| Заголовок сообщения: | Re: Sapphire R9 390 nitro no display |
Check picture for all videoout - DP, HDMI, DVI. Check resistance on all signal lines. Check voltage 5v for DVI, HDMI and 3,3v for DP. |
|
| ilie321 [ 10 мар 2020, 10:03 ] | |
| Заголовок сообщения: | Re: Sapphire R9 390 nitro no display |
aleksros писал(а): Check picture for all videoout - DP, HDMI, DVI. Check resistance on all signal lines. Check voltage 5v for DVI, HDMI and 3,3v for DP. i checked all signal lines and are ok Check voltage 5v for DVI, HDMI= ok but it stop in B2 if the card is alone in the system ; for memory 1.500V is ok? it has a strange pwm also for memory: Вложение: 20200310_075746.jpg
|
|
| aleksros [ 10 мар 2020, 11:31 ] | |
| Заголовок сообщения: | Re: Sapphire R9 390 nitro no display |
ilie321 писал(а): memory 1.500V is ok it is ok. if card stop on b2 - it is memory error (for AMD videocards). test and change fail memory bank. |
|
| ilie321 [ 10 мар 2020, 11:40 ] | |
| Заголовок сообщения: | Re: Sapphire R9 390 nitro no display |
aleksros писал(а): test and change fail memory bank. any way to test memory for amd? is my first amd :) |
|
| aleksros [ 10 мар 2020, 11:58 ] | |
| Заголовок сообщения: | Re: Sapphire R9 390 nitro no display |
read this viewtopic.php?f=48&t=91866&p=683466&hilit=%2A%D1%81%D0%BA%D1%80%D0%B8%D0%BF%D1%82%2A#p683466 |
|
| ilie321 [ 11 мар 2020, 09:53 ] | |
| Заголовок сообщения: | Re: Sapphire R9 390 nitro no display |
Hello i tried that script. Lspci give b0000000 and c0000000 which is ok to test? For b000000 i get 1.000... and i have 16 modules of ram so 1 is damaged? If i test c0000000 i get 4. 000... so 16/4 4 modules with errors. Вложение: 20200310_194843.jpg Вложение: 20200310_201052.jpg Вложение: 20200310_201109.jpg If i add it as second gpu driver says ok but no image if i put monitor. |
|
| ilie321 [ 13 мар 2020, 21:57 ] | |
| Заголовок сообщения: | Re: Sapphire R9 390 nitro no display |
How do i find the reset resistors for memory with no schematic? |
|
| ilie321 [ 14 мар 2020, 21:18 ] | |
| Заголовок сообщения: | Re: Sapphire R9 390 nitro no display |
I found 2x2 memory not ok with the script. I used a 4.7ohm resistor to short to ground the resistor where was 1V measured. Like 30ma were taken 1-2 seconds. Now i need to find same memory types the replace all 4. I tried reflow on them with no success. I used as command "python3. /direct-mem-test.py b0000000 1" ; 1mb was enough and i had 16 ic memory chips so 65535kb on each. If chip was disabled the number of errors increased by 65xxx for good memory and almost at all for bad ones. |
|
| Страница 1 из 1 | Часовой пояс: UTC + 4 часа |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|