Ninjastic
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Board Hardware
Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly
by
Spieder
on 21/12/2013, 15:03:01 UTC
Quote from: i3luefire on December 21, 2013, 03:39:57 AM
Quote from: MrTeal on December 21, 2013, 02:40:09 AM
Quote from: i3luefire on December 21, 2013, 02:32:32 AM
i may just try and replace the ftdi chip
Before doing that, try shorting the center two pins on the unpopulated 0.1" connector labeled PROG. Pin 5 is MCU reset and pin 6 is ground, so it will hold the microcontroller in reset. If it's an MCU issue holding it in reset should cause the device to pop up on your computer as the FTDI chip will be able to connect. If it doesn't show up, it likely is the FTDI.
It still shows as an unrecognized device with the MCU held in reset. So it is probably the ftdi chip then.

Have you tried plugging it into a different computer or loading the windrivers? I had this problem with one of my pc's, the units would randomly drop out of device manager and list unknown device. It turned out to be an issue with the usb hub and maybe funky with the win 8 install. After replacing hub and reformatting the problem went away.