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Modding the 1000 W G5 PSU into ATX PSU

Joined
Sep 8, 2017
Messages
24
Thx, thing fan rpms are controlled by PSU itself. Maybe PSU has some sort of circuit and controlling the fans through voltage.
Are you using some sort of splitter adapter to connect both of the fans to 1 PSU header?
 
Joined
Dec 16, 2014
Messages
324
Motherboard
ASUS TUF Z390M-PRO Gaming
CPU
i5-9600K
Graphics
RX 580
Mac
MacBook Pro, Mac mini, Mac Pro
Classic Mac
Power Mac
Mobile Phone
iOS
Maybe PSU has some sort of circuit and controlling the fans through voltage.
Could be voltage or heat.

Maybe PSU has some sort of circuit and controlling the fans t
Are you using some sort of splitter adapter to connect both of the fans to 1 PSU header?
Yes - see photo above.
 
Joined
Dec 16, 2014
Messages
324
Motherboard
ASUS TUF Z390M-PRO Gaming
CPU
i5-9600K
Graphics
RX 580
Mac
MacBook Pro, Mac mini, Mac Pro
Classic Mac
Power Mac
Mobile Phone
iOS
so the top of the original G5 PSU modular enclosure can be put back on happily with no clearance issues with this scalped RM750i?
Yes, but check the clearance. Make sure the new ATX power supply is set at the bottom of the original G5 PSU case.
 
Joined
Sep 7, 2018
Messages
19
Motherboard
Gigabyte Z390M Gaming
CPU
i7-9700K
Graphics
RX 580
Mac
MacBook Pro, Mac mini
Mobile Phone
Android
Yes, but check the clearance. Make sure the new ATX power supply is set at the bottom of the original G5 PSU case.
If the top of the original case is put back on, what's the path of the hot air from the coils and caps? It doesn't look like it would be able to continue travelling towards the rear of the case (blocked by the back wall of the PSU), and the case top would block its upward path. So where does it end up going?
 
Joined
Dec 16, 2014
Messages
324
Motherboard
ASUS TUF Z390M-PRO Gaming
CPU
i5-9600K
Graphics
RX 580
Mac
MacBook Pro, Mac mini, Mac Pro
Classic Mac
Power Mac
Mobile Phone
iOS
If the top of the original case is put back on, what's the path of the hot air from the coils and caps? It doesn't look like it would be able to continue travelling towards the rear of the case (blocked by the back wall of the PSU), and the case top would block its upward path. So where does it end up going?
Yes, the path is restricted - and retrofitting an original PSU case is not recommended if your G5 Hack has a lot of RAM or graphics that draw a lot of power.

The PSU in post #7 has a moderate power draw and the fans seldom spin.
 
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