G-Series Gaming Keyboards

[Schneppi]

Hello fellow GSKusers :-)

Since 7 days, i have my G19 now. As it arrived, i instantly unplugged my G15 (v1) and removed the drive, erased the remaining Foldersand cleaned up the Windows Registry. Then i rebooted the PC (Windows Vista Pro. SP2 (German, installed the 3.02 drivers from the Logitech Websiteand plugged the G19 into the same USB Port where the G15 was installed before. It took just a few hours before the G19 "rebooted" for the first time.

I thought i may be related to the Port somehow, because it was used by a G15 before. So i removed it and plugged it into another USB Port. (Same onboard HUB). The G19 seemed to reboot more often, the longer i used it. So i decided to remove all partitions and start with Windows XP Pro SP3 from scratch.

Now i am on XP and have the same issues. One time i got a message (Bubble at the Tray) from Windows, saying the the USB HUB (can't remember if it was the one of the board or of the Keyboard) had a Power issue. One time i had a 0x000000fe BSOD on Windows Boot (usbehci.sys related on Port 5) (Fehlercode 000000fe, 1. Parameter 00000005, 2. Parameter 8a6120e0, 3. Parameter 10024386, 4. Parameter 8a4565c0.).

I am unable to force the issue. It does not seem to be related to any devices i connect to the USB HUB of the G19. It also happening without any devices connected. Sometimes it not happening for hours sometimes it happen 3-4 times within 5 Minutes. BIOS, Drivers, Windows, ... all is up to date.

My PC is an ASROCK 4Core1333-FullHD (BIOS 1.70) with a Kentsfield (Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz), 4GB RAM (Dual Channel) , 2 SATA HDDs in ATA (non-Raid) Mode (was RAID 0 on Vista) and 1x nVidia 8600GS GraphicCard. I am using the following Devices on the same USB OnBoard HUB: G9 Mouse, Epson DX4050 MFP Printer (Ink). I connect from time to time 1x 16GB Memory Stick from Toshiba, a 120GB 2,5' HDD or my iPhone 3G (8GB) to the Keyboard HUB.

Today i was in the lucky situation, to test the Keyboard with a PC of a collegue of mine for several hours. He did not see these strange hickups, but he was not watching the G19 the whole day and there are never any entrys in any event Log, when such an issue ocurrs. We continued our Troubleshooting, be swapping my G19 AC Adapter with the AC Adapter of another G19. Yes, we have two of them.

I think i need a few days to say if this changed anything. Whats making me a bit scary, is that the AC Adapter (mine and the "new" one) or the G19 USB HUB are not getting too warm and that i can connect the external HDD and my iPhone3G which both take much power from the HUB. I think this would not work, if the AC Adapter is defect.And the issue is not affected by movement of cables or devices.

Message Edited by Schneppi on 14-07-2009 11:48 PM

[Trusselo]

 i remember reading this before too. there is a problem with the AC adapters.  see if it is getting warm or humming. if it is failing some of the parts of the device will fail.

Message Edited by Trusselo on 07-16-2009 03:55 PM

[Schneppi]

Thank you Trusselo. As i wrote in my first Post:

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Schneppi wrote:
Whats making me a bit scary, is that the AC Adapter (mine and the "new" one) or the G19 USB HUB are not getting too warm and that i can connect the external HDD and my iPhone3G which both take much power from the HUB. I think this would not work, if the AC Adapter is defect. And the issue is not affected by movement of cables or devices.

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 It's not getting too war and it's not making any noises or humming.

I never had any USB specific issues with my machine before and the G19 is still the only device which causes now issues.

[Trusselo]

Message Edited by Trusselo on 07-16-2009 03:53 PM

[Schneppi]

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Trusselo wrote:

what is the brand of your motherboard?

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Schneppi wrote (again, in my 1st post) ;-):

ASROCK 4Core1333-FullHD (BIOS 1.70)

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[schlumpf]

My G19 reboots then my cellphone lies near keyboard USB ports and receves a call.

That's really annoing.

[Trusselo]

Message Edited by Trusselo on 07-16-2009 03:53 PM

[Schneppi]

Today my collegue informed me that he had the same issue (rebooting G19) with my AC Adapter.

I had in the meanwhile, since i used his AC Adapter, no reboots.

We are pretty sure, that we have found the cause of the issue.

[Trusselo]

so I was right on my first reply to you? why dont i get the accepted solution?

[JonStatt]

Hehe..I wouldn't get too upset. I was the one that put a volt meter on the PSU provided with the G19 and showed that the voltage was dipping under increased load when additional devices were connected to the keyboard.

Logitech need to make a statement on this now and advise how we get replaced PSUs. I don't want to take this to support yet, because I don't want to swap out one bad PSU with another one.