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  1. #1
    ROG Enthusiast Array mikejustis PC Specs
    mikejustis PC Specs
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    Thunderbolt USB C port power

    Hi all, I have the Hero Z590 running Windows 11 with BIOS 1301. I use the Thunderbolt USB C E1 port in the back panel to charge my phone. While my comp is on it works great, while its off it doesn't give a charge...I am sure its a mobo setting but don't know where. It used to work but I think when I updated BIOS it turned off. Any ideas?
    NZXT H710i
    Z590 Maximus Hero XIII
    Intel Core i9 10850K
    EVGA RTX 3070 TI
    CPU Cooler NZXT Z63
    G.Skill TridentZ F4-4000C17D-32GTZRB
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    Windows 11 Home 64 bit
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    BIOS 1301

  2. #2
    ROG Enthusiast Array mikejustis PC Specs
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    No ideas?
    NZXT H710i
    Z590 Maximus Hero XIII
    Intel Core i9 10850K
    EVGA RTX 3070 TI
    CPU Cooler NZXT Z63
    G.Skill TridentZ F4-4000C17D-32GTZRB
    EVGA SuperNOVA 1200 P2psu
    Windows 11 Home 64 bit
    Heatware
    BIOS 1301

  3. #3
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    I have been having the same issue with thunderbolt. I'm surprised ASUS has not answered this simple question in over a week...

  4. #4
    ROG Enthusiast Array mikejustis PC Specs
    mikejustis PC Specs
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    Agreed...it is nice to know I am not going crazy.
    Last edited by mikejustis; 06-22-2022 at 05:56 PM.
    NZXT H710i
    Z590 Maximus Hero XIII
    Intel Core i9 10850K
    EVGA RTX 3070 TI
    CPU Cooler NZXT Z63
    G.Skill TridentZ F4-4000C17D-32GTZRB
    EVGA SuperNOVA 1200 P2psu
    Windows 11 Home 64 bit
    Heatware
    BIOS 1301

  5. #5
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    Your not, Ive made a support ticket over the phone and supposed to get a call back in 24/48 hours. I'll post any solutions I find, if any.

  6. #6
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    Quote Originally Posted by mikejustis View Post
    Hi all, I have the Hero Z590 running Windows 11 with BIOS 1301. I use the Thunderbolt USB C E1 port in the back panel to charge my phone. While my comp is on it works great, while its off it doesn't give a charge...I am sure its a mobo setting but don't know where. It used to work but I think when I updated BIOS it turned off. Any ideas?
    This is probably by design. Does the manual say it will still charge in standby?

    When in standby or shut-down, then your power supply is also turned off. Only a 5 volt standby power supply is supplied to the motherboard, this is officially only there to allow the power button to work, power up the Intel ME chip for remote management, and if set to suspend to memory, then some current is used keeping the memory refreshed. Most power supplies only supply 2 or 3 amps of this standby power, with a lot of that powering the bits explained above, leaving little left over to supply the required 5 volt @ 3 amp that the Thunderboard USB-C charger is required to supply, therefore it can't work when the PC is off.

  7. #7
    ROG Guru: Green Belt Array geneo PC Specs
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    Quote Originally Posted by plee5509 View Post
    This is probably by design. Does the manual say it will still charge in standby?

    When in standby or shut-down, then your power supply is also turned off. Only a 5 volt standby power supply is supplied to the motherboard, this is officially only there to allow the power button to work, power up the Intel ME chip for remote management, and if set to suspend to memory, then some current is used keeping the memory refreshed. Most power supplies only supply 2 or 3 amps of this standby power, with a lot of that powering the bits explained above, leaving little left over to supply the required 5 volt @ 3 amp that the Thunderboard USB-C charger is required to supply, therefore it can't work when the PC is off.
    Thunderbolt (and USB ports) charge my iphone fine when the PC is in sleep mode.

    For USB at least, there is a BIOS configuration option to provide USB power in the soft-off state.

  8. #8
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    The USB ports all work fine, (once you disable "allow computer to turn off this device to save power" in device manager) but the thunder bolt ports seem to be seperate from USB. Every other device I have with thunderbolt can at least charge a usb mouse/keyboard or phone.

    On another note, why has asus still not answered this question here? are there any moderators?

  9. #9
    ROG Enthusiast Array mikejustis PC Specs
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    All USB ports on backplate charge while off just the thunderbolt ports do not. The thunderbolt and usb ports on the top of the case (NZXT 701i) charge while comp is off. I did talk to support and they sent a link to download ASUS_Ai_Charger_V1.07.02_WIN10_64-bit...this did not work.
    Last edited by mikejustis; 06-22-2022 at 10:47 PM.
    NZXT H710i
    Z590 Maximus Hero XIII
    Intel Core i9 10850K
    EVGA RTX 3070 TI
    CPU Cooler NZXT Z63
    G.Skill TridentZ F4-4000C17D-32GTZRB
    EVGA SuperNOVA 1200 P2psu
    Windows 11 Home 64 bit
    Heatware
    BIOS 1301

  10. #10
    TeamROG Moderator Array xeromist PC Specs
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    Quote Originally Posted by Mobbmann View Post
    I have been having the same issue with thunderbolt. I'm surprised ASUS has not answered this simple question in over a week...
    ASUS doesn't address most posts on this forum because it's primarily a community forum. For immediate support always contact through official channels like phone or live chat. The phone support people may or may not have documentation on this topic but it's worth asking.

    I do agree with the other poster that Thunderbolt is a different animal than USB. Depending on the implementation certain power states may have little to no functionality while the USB controller is still powered. That means front ports could be designed to behave differently than rear, especially since front IO is more likely to be used as a charging port for a phone.
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