I noticed something. I thought i should connect the USB 3 front panel port to motherboard but with the extension cable to see what will happen. I connected a USB 2.0 HDD to it and i did not get any warnings. Everything was ok. But then when i connected a USB 3.0 HDD i got the warnings again.
Odd thing is, even USB 2 HDD was giving warnings, when i connected it to the USB 3 port but without the extension cable. Now i mounted the Intel bracket and it works fine but it looks very ugly since its a 3.5* bracket and i had to mount it in 5.25" place. I will use it until Intel comes up with a solution to the front USB 3 problem.
I've just received a USB 3 motherboard adapter like this from Ebay, it is working fine with USB 2 devices, I don't yet have a USB 3 device to try.
I've checked where pin 10 is connected in the adapter and it is unconnected, so is the same as having the pin removed essentially. I think the problem is some adapters/cables are incorrectly terminating pin 10 to something else and this is causing a short or other problem.
Same problem here on my Intel DZ77GA-70K
board : connecting the front usb 3.0 cable to the motherboard messes up the drivers on the front and the back.
When I disconnect the front cable from the motherboard, everthing (usb 3.0 ports) on the back from the motherboard works fine.
Latest drivers and bios are installed.
I noticed something.
I connected chassis front 3 port to the motherboard using a USB 3 extension cable. I got the power warnings and the device did not even want to show up in Windows just like with bios 0039. So i switched back, connected the chassis cable directly to USB header without a extension cable and the USB device showed up in Windows but the power warnings are popping up all the time.
Bios 0045 is disabling pin 10 but seems there is still something on the chassis cable causing Windows to show power warnings. The devices performs as they should when connected but Windows reports that they have malfunctioned so i am of course worried. Those warnings should not show at all. I am afraid that using the chassis USB 3 port might cause some damage the future if i just ignore the power warnings and keep using it. I hope this is just false warnings and that the next bios will get rid of them.
I had contact with Intel support via their very good chat feature. My agent acknowledged that Intel is very aware of the problem. They told me: "correct, we don't have an ETA yet for this matter but we can confirm Intel(R) is working on a solution to solve it very soon"
So perhaps we will get lucky and a BIOS update will fix this. I will wait off on bailing out to using the rear USB 3.0 ports and wiring them to the front panel.
I decided to quit screwing around with this defective feature of the motherboard and have used the following device to connect the rear USB 3.0 ports to the front panel and it works perfectly.
SilverStone FP36B Aluminum Front Panel 2X USB 3.0 Ports
with 3.5-Inch to 2X 2.5-Inch Bay Converter Device (Black)
Available at Newegg and Amazon
I just wanted to say that I'm having an issue with my DZ77GA-70K motherboard USB 3.0 headers. One header is connected to an internal bracket. No devices on the internal bracket work. I have also 2 front panel connectors connected to another header on motherboard. On front panel 1 port works, the other doesn't. I made a video describing the front panel problem:
Intel just released BIOS Update [BHZ7710H.86A]:
There is nothing about the front panel USB port issue in the release note.
I am sending the board back to Intel for a refund. I found that BIOS update after opening the board!
Could someone update the BIOS and see what will happen?
I am experiencing the same identical problem with my DZ77GA-70K, and Bobot reported that he is as well. One USB 3.0 port on the front works, but the other does not, precisely as you indicated in the video and as numerous others have reported.
I spoke to an Intel agent in a support chat session earlier. I sent her multiple links to the same USB 3.0 front port issues described in various DZ77GA-70K threads. She indicated that Intel was unaware of the problem and thanked me for bringing it to her attention.
Apparently, this problem has been going on for quite a while, since at least May 2012?
I think we need to remain patient, but continue posting about the issue until it is officially addressed and resolved. Overall, this is only a very minor inconvenience for me. I am very satisfied with the board and my new build. I'm certainly not annoyed enough to disassemble at this point and request a new board. I think Intel will eventually resolve this issue... fingers crossed! :-)
I stumbled on this thread after having bought two of these units ... still trying to find some compatible memory ... but that aside, I'll throw in a USB opinion at this point FWIW.
Phil seems to be on target. Intel is not going to issue a HW engineering change notice if it can be addressed in the BIOS. It's important to keep things in perspective: BIOS can change operating points if they are firmware controllable. Many things are not, so expectations can be falsely high. The designers work primarily with the chip data sheets to get all the parts connected properly. There are greater risks in the design when they reach outside their controllables, like in this situation where there's an interface to a variety of wiring schemas. I can see why Intel wouldn't want to run this type of error up the flag pole, especially if some users might not be plugging anything into this header.
The evidence as reported by the OS suggest too much power. That might come from the pin being grounded. If you cut the pin, you open the path to ground. If the Change Notice says they are putting in a resistor, that component on a termination point is classically either a pull-up, pull-down or current limiting resistor. If we assume (not a wise thing in many cases) that the only way to retain pin functionality (yet not go into an over-current condition when it's adversely grounded by case manufacturers, etc.) is to put a resistor in series.
The implication here is that opening the connection would be a solution for a standard USB 3.0 socket. If one does not wish to void the warranty, or risk damage to the adjacent pins, or slice a copper trace if it's even available on the bottom (I don't feel like taking the board out to look and it's a multi-layer board, so forget it), then the remaining option may be at the front panel if that connection (to ground?) is available for modification. In my case, an Antec P280, does not make this an easy task. Looks like removing rivets is the first step.
There is another option: Take a small drill bit and carefully drill out the socket to remove the contact for pin 10. You are presumably affecting a lower cost item. I'm not seeing that pin grounded on my socket, so I will wait to see if I have that power issue before doing a connector mod.
On a related note, I did not find the USB 3 bracket some are reporting. Maybe that came with the first production run. The "What's in the box" doesn't show it for my run manufactured on May 11, 2012, so I'm curious if there's any relationship to all these USB problems.
The final thought on this, without consulting the Renesas (sp?) datasheet, is to do what's needed to get the OS and board out of its "power surge" state. It is possible that the condition is adversely affecting other areas either in SW or HW. It's certainly not a normal condition under which normal testing and operation occurs, so I personally would try to resolve it some way and lower the possibilities of a domino effect.
Thanks to all those putting some effort on this topic. Pooling information can save a ton of time, money and frustration on the bleeding edge.
I've got an Antec Solo II case with the DZ77BH-55K, and the front panel USB3 ports don't work here either. There are no error messages and the Win7 device manager seems happy.
Since I don't yet have any USB3 devices, and there are 4 USB3 back panel connectors, I guess I can ignore the lack of front panel support. Is there any reason to unplug the internal USB3 header, or is this benign?
The claim that the Silverstone FP36B works with the mobo header is interesting. Here's an Amazon link to that product:
I wonder if this Biostar brand (a few dollars less) likewise works?
It's an academic question for me, since I don't have a free bay. And there's no reason for me to add the ports to the back panel, since I'm not using the other USB3 ports. But it's good to know the option is there.
On a positive note, this thread reminded me that my mobo has 2 unused USB2 headers, and I've got lots of USB2 devices. Might as well break those out to the back panel. This looks good to do it:
There are several similar devices, but I see one customer/reviewer makes this claim about this one:
The cable was plenty long to reach the connectors at the bottom-middle of my MoBo from any bracket position and still allow some flexibility in routing. It is 13 inches from bracket to header--be aware that there are similar products that have much shorter cables.