There's no PWM on buck controller.
I must look closer to this Digi VRM chip and try to figure why it don't start to PWM buck controller....
I think ther is no easy way to replace that chip.....
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Asus Prime x299 Deluxe - no VCCIO VCCSA voltages
Motherboard after starting show Q code 00.
No shorts on any rail ( at last I can't finde any)
All voltage are correct on SIO - 3.3V, PCH power 1V , DDR 1.2V, SPI 8 leg 3.3V
Nothing get hot, PSU starting, all lights came ON....
One thing i can see incorrect is no VCCIO and VCCSA voltages and no main power on CPU.
After deep looking I found dead Synchronous Buck converter CSD97374Q4M that is powering VCCIO for CPU but after replacing it nothing changed. Voltages on it are correct....
This buck converter is PWM'ed by Asus DigiVRM ASP1405I-62T. Can't finde any datasheet...
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Hey Folks, Hello to all, i stumbled along this site looking for a fix some motherboards. Very nice site and informative. I like this. Once again hello to everybody.
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