just for the record - the USB1/2 questions isn't resolved, but probably doesn't matter. Managed to get U1 running as intended. There is also a good post now by PaintshopPro6 here:
https://bitcointalksearch.org/topic/m.4430419
Topic: Antminer U1 only recognized as USB1, giving HW errors and low hash rate (Win7) (Read 1381 times)
January 10, 2014, 10:09:52 AM
January 08, 2014, 03:09:26 PM
Hi -
so, finally a problem that I can't figure out without the already great existing help here. But I might have missed something?
Anyway, my latest addition is an
Antminer U1 USB
since I can't compile myself, I use the special cgminer version by the vendor one can download from Github.
for Windows 7. I used the CP210x_VCP drivers followed by Nadig as suggested.
the highest hash rate I can get is around 1.3 Gh/s, the average is usually lower. and I get quite a number of HWs (average 10 / 5min)
never had any at all with a red fury or block erupter.
so, I check with USBView and there I see that this device is recognized as USB1 device (all my ports are USB2, I checked), but it could be something with the usb host controller?
this is just my suspecion, maybe I am totally off - USB1 = less power = less hash-rate = more hardware errors?
anyway to enfore USB2 in that case?
(Running on a different Win7 machine mainly because my mining rig doesn't have any free slots on the external powered hub and had even more trouble there with the antminer).
so, finally a problem that I can't figure out without the already great existing help here. But I might have missed something?
Anyway, my latest addition is an
Antminer U1 USB
since I can't compile myself, I use the special cgminer version by the vendor one can download from Github.
for Windows 7. I used the CP210x_VCP drivers followed by Nadig as suggested.
the highest hash rate I can get is around 1.3 Gh/s, the average is usually lower. and I get quite a number of HWs (average 10 / 5min)
never had any at all with a red fury or block erupter.
so, I check with USBView and there I see that this device is recognized as USB1 device (all my ports are USB2, I checked), but it could be something with the usb host controller?
this is just my suspecion, maybe I am totally off - USB1 = less power = less hash-rate = more hardware errors?
anyway to enfore USB2 in that case?
(Running on a different Win7 machine mainly because my mining rig doesn't have any free slots on the external powered hub and had even more trouble there with the antminer).
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