My Antminer U2 default is 1.6 Ghash/s?

[TheFalseHuman]

Hi,

When I plugged it in, cgminer displays it as around 1.6 Ghash/s. I thought the default is 2.0 Ghash/s? Yes, I realized I could just overclock it to 2 Ghash/s, but the point is that I think this is somewhat false advertising.

This is where I got it from:
http://www.amazon.com/BITMAIN-ANTMINER-U2-Bitcoin-Overclockable/dp/B00ITD5NV6

Also, on the PCB, it says version 1.2, but on the forums, I read from somewhere that someone had a ver 1.3.

So, did I get a bad chip or is this how it works, that I need to overclock it to achieve the 2.0 Ghash/s?

(I know I won't get the ROI; I'm just doing this to learn more about bitcoin and virtual currency)

Thanks

[-ck]

As far as I'm aware there is nothing to make the U2 faster, only that it has better cooling. Cgminer can't discriminate a U1 from a U2 so it's still being told the same default frequency of 200. The heatsink is larger on the U2 meaning it can easily run at 2GHs but only if you actually tell it --anu-freq 250

[TheFalseHuman]

Yes, I am aware I can overclock it by inputting that into the command line, however, I was just curious of all the Antminer U2 owners also experience a default 1.6 Ghash/s. Also, what is this ver. 1.3 of the U2?

[HellDiverUK]

They both default to 1.6.  2GH is the normal speed they'll all do once told to.