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Normal PSU Behavior?

jero.mekern
By jero.mekern
in Power Supplies
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==moved to PSUs==

Good luck, Have fun, Build PC, and have a Wii and PS2 as your only consoles.

NightHawk 3.0: R7 5700x @, B550A vision D, H105, 2x32gb Oloy 3600, Asrock RX9070xt Steel Legends, Corsair RM750X, 500gb 850 evo, 2tb rocket and 5tb Toshiba x300, 3x 6TB WD Black W10 all in a Obsidian 750D airflow.
GF PC: (NightHawk 2.0): R7 2700x, B450m vision D, 4x8gb Geli 2933, Sapphire RX 6700XT  Nitro+, CX650M RGB, Obsidian 350D

Skunkworks: R5 3500U, 16gb, 500gb 860 evo, Vega 8. HP probook G455R G6 Ubuntu 20. LTS

Condor (MC server): 6600K, z170m plus, 16gb corsair vengeance LPX, samsung 750 evo, EVGA BR 450.

Spirt  (NAS) ASUS Z9PR-D12, 2x E5 2620V2, 8x4gb, 24 3tb HDD. F80 800gb cache, trueNAS, 2x12disk raid Z3 stripped

HP probook 445R G6 review

 

"Stupidity is like trying to find a limit of a constant. You are never truly smart in something, just less stupid."

Camera Gear: X-S10, 16-80 F4, 35mm F1.4, Helios 44

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11 minutes ago, jero.mekern said:

Hey together,

 

is it normal that my Corsair PSU uses 25W when the PC is turned completely off?

It seems a bit high to me

How do you measure?

 

5Vsb is always active as long as the switch on the back of the PSU is not turned off. 5Vsb powers the RGB on the motherboard and RAM and USB ports. You can disable those functions in the BIOS of the motherboard.

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3 minutes ago, --SID-- said:

How do you measure?

This. I have a plug meter that can't handle low loads and gives out completely wrong readings at standby loads.

F@H
Desktop: i9-13900K, ASUS Z790-E, 64GB DDR5-6000 CL36, RTX3080, 2TB MP600 Pro XT, 2TB SX8200Pro, 2x16TB Ironwolf RAID0, Corsair HX1200, Antec Vortex 360 AIO, Thermaltake Versa H25 TG, Samsung 4K curved 49" TV, 23" secondary, Mountain Everest Max

Mobile SFF rig: i9-9900K, Noctua NH-L9i, Asrock Z390 Phantom ITX-AC, 32GB, GTX1070, 2x1TB SX8200Pro RAID0, 2x5TB 2.5" HDD RAID0, Athena 500W Flex (Noctua fan), Custom 4.7l 3D printed case

 

Asus Zenbook UM325UA, Ryzen 7 5700u, 16GB, 1TB, OLED

 

GPD Win 2

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21 minutes ago, leclod said:

I just activated usb standby power at S4/S5 on mine (provide USB power when PC is off)

Is it that ?

Oh yeah. I just plugged in a USB Device and it started charging. never knew that that was a thing.
I will turn that function off in the Bios if that's possible.

Thank you!

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17 minutes ago, --SID-- said:

How do you measure?

 

5Vsb is always active as long as the switch on the back of the PSU is not turned off. 5Vsb powers the RGB on the motherboard and RAM and USB ports. You can disable those functions in the BIOS of the motherboard.

Have a Power meter, and as far as im concerned it's pretty accurate. 

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19 minutes ago, jero.mekern said:

Have a Power meter, and as far as im concerned it's pretty accurate. 

Whats the model? They have very defined ranges in the manual and unless its a pricier unit anything below 30w is basically nonsense.

 

Easy to try with a lightbulb. If it says max 4w and power meter goes stupid then well ya know whats up

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1 hour ago, jaslion said:

Whats the model? They have very defined ranges in the manual and unless its a pricier unit anything below 30w is basically nonsense.

 

Easy to try with a lightbulb. If it says max 4w and power meter goes stupid then well ya know whats up

its a generic one. no specific name other than the importer. when I plug in a phone 5V2A Charger, it says accurately.

 

I Tried to look in the Bios if I can somewhere find a option that I can disable the USB Power when turned off, but there was sadly no such option

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Do you actually have 25W worth of USB stuff connected? You could see if unplugging things drops the used power.

F@H
Desktop: i9-13900K, ASUS Z790-E, 64GB DDR5-6000 CL36, RTX3080, 2TB MP600 Pro XT, 2TB SX8200Pro, 2x16TB Ironwolf RAID0, Corsair HX1200, Antec Vortex 360 AIO, Thermaltake Versa H25 TG, Samsung 4K curved 49" TV, 23" secondary, Mountain Everest Max

Mobile SFF rig: i9-9900K, Noctua NH-L9i, Asrock Z390 Phantom ITX-AC, 32GB, GTX1070, 2x1TB SX8200Pro RAID0, 2x5TB 2.5" HDD RAID0, Athena 500W Flex (Noctua fan), Custom 4.7l 3D printed case

 

Asus Zenbook UM325UA, Ryzen 7 5700u, 16GB, 1TB, OLED

 

GPD Win 2

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3 minutes ago, Kilrah said:

Do you actually have 25W worth of USB stuff connected? You could see if unplugging things drops the used power.

 no, not so much connected. Wattage drops quite a bit, but not to almost Zero

But I have a Pcie Wifi/Bt built in. Can that be a culprit?

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Probably not, you could try removing it to see though...

 

Also you could check that the BIOS/NIC are not set to allow wake on lan since that'll use some. But anyway it'll never be 0.

 

What motherboard/PSU?

F@H
Desktop: i9-13900K, ASUS Z790-E, 64GB DDR5-6000 CL36, RTX3080, 2TB MP600 Pro XT, 2TB SX8200Pro, 2x16TB Ironwolf RAID0, Corsair HX1200, Antec Vortex 360 AIO, Thermaltake Versa H25 TG, Samsung 4K curved 49" TV, 23" secondary, Mountain Everest Max

Mobile SFF rig: i9-9900K, Noctua NH-L9i, Asrock Z390 Phantom ITX-AC, 32GB, GTX1070, 2x1TB SX8200Pro RAID0, 2x5TB 2.5" HDD RAID0, Athena 500W Flex (Noctua fan), Custom 4.7l 3D printed case

 

Asus Zenbook UM325UA, Ryzen 7 5700u, 16GB, 1TB, OLED

 

GPD Win 2

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3 minutes ago, Kilrah said:

Probably not, you could try removing it to see though...

 

Also you could check that the BIOS/NIC are not set to allow wake on lan since that'll use some. But anyway it'll never be 0.

 

What motherboard/PSU?

wake on lan is enabled but no lan is connected because at the moment I don't have a LAN Cable that works.

 

Motherboard is a Aorus B550 Elite V2
PSU is a Corsair TX750M

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15 minutes ago, jero.mekern said:

wake on lan is enabled but no lan is connected

That'll t'll keep the NIC powered, whether a cable is plugged in or not. Should be nowhere near that much, but things add up.

 

 

F@H
Desktop: i9-13900K, ASUS Z790-E, 64GB DDR5-6000 CL36, RTX3080, 2TB MP600 Pro XT, 2TB SX8200Pro, 2x16TB Ironwolf RAID0, Corsair HX1200, Antec Vortex 360 AIO, Thermaltake Versa H25 TG, Samsung 4K curved 49" TV, 23" secondary, Mountain Everest Max

Mobile SFF rig: i9-9900K, Noctua NH-L9i, Asrock Z390 Phantom ITX-AC, 32GB, GTX1070, 2x1TB SX8200Pro RAID0, 2x5TB 2.5" HDD RAID0, Athena 500W Flex (Noctua fan), Custom 4.7l 3D printed case

 

Asus Zenbook UM325UA, Ryzen 7 5700u, 16GB, 1TB, OLED

 

GPD Win 2

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3 hours ago, Kilrah said:

That'll t'll keep the NIC powered, whether a cable is plugged in or not. Should be nowhere near that much, but things add up.

 

 

oh thank you. Great to know. I'll turn that off.
and So i unplug all of unnecessary usb consumers.

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