Hi Guys,
I think that is not a Y cable problem. I used this same disk and cable with other devices and it works so why doesnt work with ud7 ?
Hi...
Very similar to the problem in my case. I got a cable which works with other devices but when it's used with my UD3R, the WD Passport 250GB does not work. My initial guesses:
[1] The "USB transceiver" of UD3R (or may be now X58/X58A in general since the similar problem you reported with UD7) is slightly inferior;
[2] The quality of the sent/received USB data signal is slightly degraded due to the interference of the electrical noise generated by the surrounding on-board circuitries. I'm saying this because, if my memory serves me well, there have been few reports on the "noise" problem of X58 motherboard's USB ports.
If my guess is correct, then we do not have many options. RMA, refund, or try to get a decent USB Y-Cable to preserve the "quality" of the data during transmission.
P/S: Gigabyte says the "2 oz Copper PCB" will improve signal quality... does it really improve the signal integrity of the motherboard? We've heard various complaints about electrical/non-electrical "noise" of these boards.
Let's say Cable-A has better transmission efficiency than Cable-B. I think the transmission efficiency is inversed proportional to the transmission rate. Assume that a digital signal of "1" is considered a VALID "1" if the voltage is higher than 3.8V. My guess [2] described above are illustrated below: