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Lenovo G570 (LA-675AP) No +VGFX_CORE voltage https://vlab.su/viewtopic.php?f=58&t=35145 |
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abuholm [ 11 авг 2015, 16:13 ] | |
Заголовок сообщения: | Lenovo G570 (LA-675AP) No +VGFX_CORE voltage |
Hi everyone, this laptop came to me with wrong processor type inserted (SLBUA) . So I changed the processor to SR04R and all voltages appear except +VGFX_CORE, but +VGFX_CORE voltage appears if I remove resistor on pin 24 of ISL95831 (PROG1) with or without processor inserted, but when resistor is in place, +VGFX_CORE is missing, with or without processor. These are the voltages I've checked on ISL95831; VR_ON - 3.3v, PGOOD - 3.3v, SDA - 1.05v, SCL - 1.05, ALERT# - 1.05v, IMVP_IMON - 0.28v, IMONG - 0.05v, VR_HOT - 1.05v, VDD - 5v, VIN - 19v, PGOODG - 0v. I have flashed the BIOS and EC and the processor works on another motherboard. I want to know where else to check.Thanks in advance. |
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