Help Gigabyte GA-RX7X7 in a Auros X7

[luckydip]

Hi Guys

This arrived dead and it looks like someones had a go at this. Working blind as I don't have boardiew/schematics. So far when I press the power button, 19v present, 3.3v on coil and on bios.

Should I be looking to restore 5V next? Any idea if it should be on the coil next to the 3.3V coil? Currently 0v no short.

Any other ideas wecome.

thanks

[stingerchamp]

Re: Help Gigabyte GA-RX7X7 in a Auros X7

You can check voltage on all coils and without power impedance of coils. All should be above 300 ohm except three CPU,GPU and vccio and ram coil

Without power
Use beep or continuity mode of multimeter to check short of first two MOSFETs and voltage on gate of 2nd mosfet

Pin 1,2,3, source
Pin 4 gate
5,6,7,8 drain

If liquid damage then it must be cleaned first
Mostly GPU area is effected

[SMDFlea]

Re: Help Gigabyte GA-RX7X7 in a Auros X7

Hi Guys

This arrived dead and it looks like someones had a go at this. Working blind as I don't have boardiew/schematics. So far when I press the power button, 19v present, 3.3v on coil and on bios.

Should I be looking to restore 5V next? Any idea if it should be on the coil next to the 3.3V coil? Currently 0v no short.

Any other ideas wecome.

thanks

Post the part numbers of all the QFN chips on the board.

[luckydip]

Re: Help Gigabyte GA-RX7X7 in a Auros X7

Post the part numbers of all the QFN chips on the board.

These are the ones I can identify:
BQ24780 charger IC
Asm1061 sata driver
UP9511p gpu power
Sic631 driver
95855 multiphase vcore
75dp159 HDMI
Tps65982 USB/C
Rts5328 controller