I have created a setup for myself with the framework 13 amd 7040 mainboard (ryzen 5) inside the cooler master case. I have an 11 in 1 Anker hub in the top left usb4 port (ethernet, 1 dp, 1 hdmi, and other peripherals as needed), a second hub int he bottom left, power in the lower right (100w Anker power supply) and plug an egpu into the top left usb4 when I want to play games (this gives me 3 screens total). I have found that crashing can occur when the egpu is plugged in but that I can mitigate this issue by using the Adrenaline software to set a max frequency of my RX 7600 to about 70% (2023MHz).
Does anyone know how/why this is fixing the crashing issues? is there a physical limiter on the usb4 for voltage, current, or data throughput which causes the computer to restart if exceeded?
Are you sure it isn’t just the power supply on the egpu? Frequency limiting fixing it does point that way.
I have run a 7900xtx in an egpu with the framework before and that puppy has a lot more power and probably data throughput than a 7600. The ketchup and mustard cables of the power supply do hit at it being quite old or low end.
@Adrian_Joachim would that be the normal operation for a usb device? that if the power supply stops (or is unable to power the device for any reason), my PC would restart rather than I just loose the 1 screen that is attached through the device (in this case the egpu). if so is that behavior somewhat unique to egpus as peripherials?
Knowing very little about power supply units could you advise the best way to test this and or how to shop a power supply that would not have this issue if that is what is needed?
as of right now the 8 pin power to the GPU is coming directly from the 55w power supply. should it instead be coming from the k43sg cable 8 pin out?
Suddenly loosing a pcie device (the gpu) without warning can pretty easily crash a computer. PCIE hotplug is possible but needs to be supported through the whole chain.
Somewhat, other pcie devices too depending on drivers. Nvme ssds tend to handle it relatively well.
Easiest would be if you could borrow a better one from someone to test. Do you have any information on your current one?
all I really know is what is on the lable and that I got the PSU in a trade for some old computer parts. now that I have moved accross the us no local buddies to barrow a PSU from so I’ll need to check local PC repair.
Oh god that thing even has split 12v rails, they have not done that on quality psus for ages anymore for pretty good reason.
I’d definitely try a different psu.
