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berwynhan

PSU 24pin connector pin out

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Posted · Original PosterOP

I recently picked up an EVGA Supernova 850 G+, its flawless but i just noticed something that peaked my interest.

 

The 24 pin connector on the motherboard side has 24 pins, and on the PSU side 28 pin. How does it actually work?  Again, nothing wrong with the PSU, Im just curious right now.

 

I then also went to check it out on my Corsair RM850x which is in my main rig, and realised it is also 28 pins on the psu side. just tried thinking why but still don't understand how it works.

 

Any info to shed some light would be greatly appreciated :D


Main Rig: CPU: Intel® Core™ i9-9900K Processor  /// Motherboard: Gigabyte Z390 Aorus Ultra /// CPU Cooler: Corsair H100i PRO RGB /// GPU: Gigabyte GTX1080 8G G1 Gaming /// RAM: Corsair Vengeance RGB 32GB (4x8GB) 3000Mhz /// Chassis: Fractal Design Define R6 USB-C Blackout TG /// PSU: Corsair RM850x /// Storage: 500GB Samsung 860 EVO M.2 (boot) + 512GB WD SN520 NVMe (Working Drive) + Seagate BarraCuda 2TB (Game Library) + Seagate BarraCuda 3TB (Mass Storage) /// OS: Windows 10 Pro

 

Peripherals (Main Rig): Mice: Logitech G502 Proteus Spectrum /// Keyboard: CoolerMaster MasterKeys Pro L RGB - MX Blue /// Tablet: Wacom Intuos M BT /// Monitor: 2x LG 27UL500-W (4K IPS Freesync) /// DAC: Focusrite Scarlett 2i2 /// Speakers: Logitech Z625 /// Mic: Focusrite CM25 MkII /// Headphones: Audio-Technica ATH-M50x /// Racing Wheel: Logitech G920 Driving Force with Shifter + Playseat® Revolution /// Printer: Canon imageCLASS MF635Cx /// External Drives: 500GB Samsung T5 SSD (Working Drive) + 1TB Seagate Backup Plus (Small Backups) + 500GB Seagate FreeAgent® GoFlexTM (Just for the GoFlex Sata adapter tbh)

 

HTPC: CPU: Intel® Core™ i5-4590S Processor  /// Motherboard: Asus H97M Plus /// CPU Cooler: Intel Stock Cooler /// GPU: Asus GTX 960 2G STRIX /// RAM: Corsair Vengeance RGB 12GB (3x4GB) 1600Mhz /// Chassis: Cooler Master MasterBox Q300L /// PSU: EVGA SuperNOVA 850 G+ /// Storage: 120GB SK Hynix SH920 SSD (boot) + Seagate BarraCuda 1TB (Game Library)  /// OS: Windows 10 Pro

 

Peripherals (HTPC): Mice: Logitech G603 Lightspeed /// Keyboard: Logitech Wireless Touch Keyboard K400 Plus /// Monitor: Philips 42PFL4208 (42" 1080p TV) /// Speakers: Sonos Beam (Black)

 

Laptop (Asus UX430UN): CPU: Intel® Core™ i7-8550U Processor  /// Motherboard: Asus UX430UN /// CPU Cooler: Asus UX430UN /// GPU: NVIDIA GeForce MX150 /// RAM: 16GB (2x8GB) 2133Mhz /// Chassis: Asus UX430UN /// PSU: Asus ADP-65GD B AC Adapter /// Storage: 512GB SanDisk SD8SN8U512G1002 (boot) /// OS: Windows 10 Home

 

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Cameras: Bodies: Canon EOS R, Canon EOS-1D X, Canon EOS 5D Mark III, Sony A6000 /// Lenses: Canon EF 24-70mm F/4L IS USM, Canon EF 16-35mm F/2.8L II USM, Canon EF 70-200mm F/2.8L IS II USM, Sony SEL-P1650 E 16-50mm F3.5-5.6 PZ OSS /// Flashes: 2x Canon Speedlite 580EXII /// Tripods: Leofoto LS-324C Carbon Fiber Tripod + Leofoto LH-40 Ballhead, Leofoto MC-80 Multipurpose Clamp /// Yes, I am a Canon Fanboy, deal with it

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Explanation for Corsair Type 4 cables (which I think the RM850X uses):

Quote

The 24-pin of the Type 4 cable set also has a unique feature not implemented in the standard Type 3 cables. There are a total of 28-pins where the cable plugs into the PSU's modular interface, instead of the usual 24-pins. The extra four pins are "sense wires". While a +3.3V sense is part of the ATX standard and is found on most PSUs, it is not often implemented. The RMi not only utilizes the +3.3V sense on the ATX connector, but also utilizes an additional +12V sense and +5V sense. These sense wires read the voltages at the load (the end of the cable) and can increase voltage automatically if voltages drop.

https://www.corsair.com/eu/en/blog/Explanation-of-RMi-New-Type-4-Cables


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Posted · Original PosterOP
2 minutes ago, Minibois said:

Explanation for Corsair Type 4 cables (which I think the RM850X uses):

Quote

i see, that is interesting, so i assume it is the same for the EVGA unit?


Main Rig: CPU: Intel® Core™ i9-9900K Processor  /// Motherboard: Gigabyte Z390 Aorus Ultra /// CPU Cooler: Corsair H100i PRO RGB /// GPU: Gigabyte GTX1080 8G G1 Gaming /// RAM: Corsair Vengeance RGB 32GB (4x8GB) 3000Mhz /// Chassis: Fractal Design Define R6 USB-C Blackout TG /// PSU: Corsair RM850x /// Storage: 500GB Samsung 860 EVO M.2 (boot) + 512GB WD SN520 NVMe (Working Drive) + Seagate BarraCuda 2TB (Game Library) + Seagate BarraCuda 3TB (Mass Storage) /// OS: Windows 10 Pro

 

Peripherals (Main Rig): Mice: Logitech G502 Proteus Spectrum /// Keyboard: CoolerMaster MasterKeys Pro L RGB - MX Blue /// Tablet: Wacom Intuos M BT /// Monitor: 2x LG 27UL500-W (4K IPS Freesync) /// DAC: Focusrite Scarlett 2i2 /// Speakers: Logitech Z625 /// Mic: Focusrite CM25 MkII /// Headphones: Audio-Technica ATH-M50x /// Racing Wheel: Logitech G920 Driving Force with Shifter + Playseat® Revolution /// Printer: Canon imageCLASS MF635Cx /// External Drives: 500GB Samsung T5 SSD (Working Drive) + 1TB Seagate Backup Plus (Small Backups) + 500GB Seagate FreeAgent® GoFlexTM (Just for the GoFlex Sata adapter tbh)

 

HTPC: CPU: Intel® Core™ i5-4590S Processor  /// Motherboard: Asus H97M Plus /// CPU Cooler: Intel Stock Cooler /// GPU: Asus GTX 960 2G STRIX /// RAM: Corsair Vengeance RGB 12GB (3x4GB) 1600Mhz /// Chassis: Cooler Master MasterBox Q300L /// PSU: EVGA SuperNOVA 850 G+ /// Storage: 120GB SK Hynix SH920 SSD (boot) + Seagate BarraCuda 1TB (Game Library)  /// OS: Windows 10 Pro

 

Peripherals (HTPC): Mice: Logitech G603 Lightspeed /// Keyboard: Logitech Wireless Touch Keyboard K400 Plus /// Monitor: Philips 42PFL4208 (42" 1080p TV) /// Speakers: Sonos Beam (Black)

 

Laptop (Asus UX430UN): CPU: Intel® Core™ i7-8550U Processor  /// Motherboard: Asus UX430UN /// CPU Cooler: Asus UX430UN /// GPU: NVIDIA GeForce MX150 /// RAM: 16GB (2x8GB) 2133Mhz /// Chassis: Asus UX430UN /// PSU: Asus ADP-65GD B AC Adapter /// Storage: 512GB SanDisk SD8SN8U512G1002 (boot) /// OS: Windows 10 Home

 

Other Tech: Console: Xbox One S 1TB /// Phone: Samsung Galaxy Note 9 128GB Midnight Black (Daily Driver) + Apple iPhone 8 Plus 64GB Space Grey /// Tablet: Apple iPad 9.7-inch Wi-Fi (2018) 32GB + Apple Pencil (1st Generation) /// Headphones: Jaybird RUN XT (Daily Driver), Klipsch R6i (When I forget to charge my Jaybirds), Samsung-AKG OEM IEMs (When I can't find my other IEMs)

 

Cameras: Bodies: Canon EOS R, Canon EOS-1D X, Canon EOS 5D Mark III, Sony A6000 /// Lenses: Canon EF 24-70mm F/4L IS USM, Canon EF 16-35mm F/2.8L II USM, Canon EF 70-200mm F/2.8L IS II USM, Sony SEL-P1650 E 16-50mm F3.5-5.6 PZ OSS /// Flashes: 2x Canon Speedlite 580EXII /// Tripods: Leofoto LS-324C Carbon Fiber Tripod + Leofoto LH-40 Ballhead, Leofoto MC-80 Multipurpose Clamp /// Yes, I am a Canon Fanboy, deal with it

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