Topic: Why does my PC shuts down when Technobit HEX 16b gets plugged in? (Read 1433 times)
TP-Link arrived. Connecting to TP-Link and then TP-Link to computer does not shuts down the PC. But I have other errors during configuration of cgminer which I have posted as a new thread. However, I'll update current and voltage readings once I get a multimeter.
So are you hinting that it might be a problem with USB cable? I don't have a multimeter, but I'll get one. If there is a short, will changing the cable fix the problem? Newbie here. 
Yes, he is saying that there could be a short in the cable, but it could also be on the HEX 16b board. Just wondering, does the problem also occur when your HEX 16b isn't plugged in to it's power supply?I personally find it a little odd that a USB cable would be defective in such a way that it would cross 5v and ground. The PWR and GND wires are on opposite ends, but I suppose anything is possible.
Actually, I was hinting that the problem might be at the usb connector to the Hex16b. The 5v usb power is close to the ground on another smd component. One stray tin whisker and you've got continuity between 5v and ground. Believe me, that's nothing on Technobit and everything about modern materials.
When you check the cable, what you're looking for is continuity or resistance between the 5v and ground return terminals, tested at the same cable end (The one you plug into the USB port of your PC, it's the easiest to check). If you have continuity, you have a dead short. If you have less than .1 ohms resistance, you have a dead short. Check with the cable unplugged from, then plugged into, the miner.
The second thing to check for is a short to voltage. With the miner's power plugged in, you should check the voltage at the usb cable. 12v means an obvious failure on the board, and one that most miners without an electrical engineering background might not be able to repair.
To elaborate, simply connecting SMPS to power supply does nothing to the PC or the miner. During this time, I connect the miner to the PC via USB and the miner's fan spins and no reboot happens on the PC. But when I short the SMPS which starts the PSU (the fan inside SMPS spins), the PC shuts down.
Now I don't want to plug it into my laptop anymore. Scary.
What if it blows up my whole system. I'm waiting for TP-Link MR3020 (which will take a week or so, I guess) to arrive plus a multimeter on its way.
Now I don't want to plug it into my laptop anymore. Scary.
What if it blows up my whole system. I'm waiting for TP-Link MR3020 (which will take a week or so, I guess) to arrive plus a multimeter on its way. So are you hinting that it might be a problem with USB cable? I don't have a multimeter, but I'll get one. If there is a short, will changing the cable fix the problem? Newbie here.
Yes, he is saying that there could be a short in the cable, but it could also be on the HEX 16b board. Just wondering, does the problem also occur when your HEX 16b isn't plugged in to it's power supply?I personally find it a little odd that a USB cable would be defective in such a way that it would cross 5v and ground. The PWR and GND wires are on opposite ends, but I suppose anything is possible.
So are you hinting that it might be a problem with USB cable? I don't have a multimeter, but I'll get one. If there is a short, will changing the cable fix the problem? Newbie here.
Put a multimeter across the 5v and ground of the usb cable you're using, I'm betting there's a short somewhere. 5v across the ground will cause the power supply's power protection circuitry to activate.
I've one Technobit HEX 16b which is connected to SMPS with shorted green and black wire. When ever I plug in the USB cable to my laptop, the system shuts down. I tried with different laptop, the result is the same. And the system refuses to startup until the USB is unplugged. One system's date and time gets reset after this. The PSU is has proper grounding and all. Is it something to do with power leakage? Any idea? Will TP-Link work instead?
SMPS Details
SMPS 450 Watt (24 Pin)
Input Voltage Range 220V AC
Frequency 50Hz±5%
Current 4A
D.C Output Voltage: +5V; Current: 40A Voltage: +12V; Current: 20A Voltage: +3.3V; Current: 28A Voltage: -5V; Current: 0.5A Voltage: -12V; Current: 0.5A Voltage: +5V
Thanks.
SMPS Details
SMPS 450 Watt (24 Pin)
Input Voltage Range 220V AC
Frequency 50Hz±5%
Current 4A
D.C Output Voltage: +5V; Current: 40A Voltage: +12V; Current: 20A Voltage: +3.3V; Current: 28A Voltage: -5V; Current: 0.5A Voltage: -12V; Current: 0.5A Voltage: +5V
Thanks.
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