"Application has been blocked from accessing graphics hardware" in Windows 10 notifications.

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robsmith
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Message 96206 - Posted: 29 Feb 2020, 15:19:12 UTC - in response to Message 96176.  

Most PC PSUs are rated on their output, so 870 at the wall will probably be around 750-800 on the outputs.
However, it is quite possible to overload one of the outputs while the rest are well within limits and doing this can drag the whole PSU down - take a look at the ratings label and see what the maximum on each line is. Sadly most consumer level PC PSUs don't have very good access to the individual output currents, and it's a grade one PIB to get a decent current clamp on them (I used to have access to a 24-pin connector with a LEM CMD + VMD on every wire, sadly since I don't work in that establishment any more I can't get my hands on it these days) Sometimes one is lucky and cn get a small clamp round a group of wires and see what the current, the most commonly overloaded lines are the 12v ones used for powering off-motherboard hardware (disks, fans, PCIE "lumps" like GPUs).
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Peter Hucker
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Message 96214 - Posted: 29 Feb 2020, 19:16:49 UTC - in response to Message 96206.  
Last modified: 29 Feb 2020, 19:17:46 UTC

Most PC PSUs are rated on their output, so 870 at the wall will probably be around 750-800 on the outputs.
However, it is quite possible to overload one of the outputs while the rest are well within limits and doing this can drag the whole PSU down - take a look at the ratings label and see what the maximum on each line is. Sadly most consumer level PC PSUs don't have very good access to the individual output currents, and it's a grade one PIB to get a decent current clamp on them (I used to have access to a 24-pin connector with a LEM CMD + VMD on every wire, sadly since I don't work in that establishment any more I can't get my hands on it these days) Sometimes one is lucky and cn get a small clamp round a group of wires and see what the current, the most commonly overloaded lines are the 12v ones used for powering off-motherboard hardware (disks, fans, PCIE "lumps" like GPUs).


Since it's a Corsair (as in decent) PSU, I'm confident if I overload anything it will simply shut off. It doesn't smell bad, the temperature of the air coming out the back is about 45-50C, the wall power indicates that the output is just within spec, the 12V line (where most is going) is allowed to take the full 850W, and the voltage on all outputs is correct. It's only temporary anyway, I like to run power supplies at 50% load if they're on 24/7, for extended life. But the other unit is a 12V only supply intended for LEDs, 1kW, but I could only source it from China, and I'm in the UK, so I have to wait a few weeks. There was a company in Germany selling them, but they'd run out of the high power ones.
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Message boards : GPUs : "Application has been blocked from accessing graphics hardware" in Windows 10 notifications.

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