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g74sx USB 3.0 problems

Lorca
Level 7
I have a WD Passport SE USB 3.0 external HD but for some reason when it's connected to the usb 3.0 port of the g74sx the transfer drops randomly, and I've to stop the backup. The external HD does work if I plug it to the 2.0 port but I don't like it because it's slow. I've the latest usb 3.0 drivers from Asus site(v3.0.119.1) but I still get the issues. Any help? Thanks.
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17 REPLIES 17

Retired
Not applicable
Hello all, i have simmilar issue with my G74SX http://www.asusrog.com/forums/showthread.php?5901-Asus-G74SX-problem-with-USB-3.0&p=43128#post43128. But in my notebook even port 2.0 doesn't work properly. Both 3.0 and 2.0 doesn't react on anything. Please review my topic and help me! 😞

BrodyBoy wrote:
When there's a "power" issue with USB drives, I think it's generally going to be at spin-up, when the driver requires the most juice. But even then, there really should be enough power to the port.....the USB hub is configured to provide 500mA per port. It seems like you'd have to have devices consuming power on several ports simultaneously to actually impast power availability on any one port.

In these cases where the drive disconnects during long transfers, I lean toward a power management issue. It's as if the computer forgets the port's in use and initiates a power-saving mode. For troubleshooting, I'd disable/uninstall Power4Gear and then make sure that Windows Power Management (and the USB Hub Properties) are set to never de-power those devices.


USB 3.0 requires 900mA to operate properly, and for 2.5" self-powered devices, 900 mA is a must-have power rate for USB host controllers. And what i read that Asus providing 500mA as if USB 3.0 ports wouldn't be used for USB 3.0 external harddrives.

Is Asus kidding us??!!!
ASUS G53JW-XA1

GBLK
Level 7
Ived been having the same trouble with my newly bought G74sx and also have a WD Passport , have you found something to fixthis problem?

PeteGeek
Level 7
Same problem here too. Latest drivers, etc.

About to check the BIOS but I somehow suspect it has more to do with the USB3.0 controller.

Retired
Not applicable
I got the same problem with the same external hard drive (WD passport 750Gb)

I updated my driver to Fresco 3.5.4.0, with this upgrade, my drive works better, right now I can open folders and transfer some files, but, if I do a long transfer (more then 20 minutes) I got a fail in transfer due to lost of connection.

So... I'm still using 2.0 port for backup

I'm using G74SX-TH71

JRd1st
Level 12
Is that a usb bus powered drive? I'm thinking that the usb power may be marginal and as the circuit heats up it decreases to below the threshold needed for these drives to operate.

Perhaps one of those "Y" usb 3 power adapters will help. http://www.newegg.com/Product/Product.aspx?Item=N82E16812161003&nm_mc=OTC-Froogle&cm_mmc=OTC-Froogle...
Read the User's Manual for more info. 😄



G74SX-A1 BIOS 203
Intel 6230 WiFi/BT
LG E2350 LED LCD Monitor
Intel Series 510 120 GB SSD

Drivers, Apps and How To's
Latest nVidia Drivers

JRd1st on DeviantArt.com

JRd1st
Level 12
I replied to your other post.
Read the User's Manual for more info. 😄



G74SX-A1 BIOS 203
Intel 6230 WiFi/BT
LG E2350 LED LCD Monitor
Intel Series 510 120 GB SSD

Drivers, Apps and How To's
Latest nVidia Drivers

JRd1st on DeviantArt.com

Gotta watch the power requirements of those external drives powered from the bus itself: some of them are right on the edge. I have an HP 500 GB USB2.0 pocket external that came with a 12 inch cable with standard ends. If I use any longer cable (e.g. even an 18 inch) the drive sputters and dies halfway through transfers. The extra resistance of the longer cable means the current draw must go down as the voltage is constant at 5 V (Ohm's law). This little drive of mine works well with my desktop's Gigabyte mainboard (P55A-UD3P) with the 3x extra high-power USB ports: I have stuck 6 foot cables on it and it works.

Try a shorty cable between your drive and the port, and while you're doing your backup open the windows to keep the ambient cool (and hence the resistance down). You'll soon identify whether its the cable causing your drops or not.

If it is check out usbfirewire.com for some low resistance USB cables that are reported to solve alot of external drive woes.
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G74SX-CST1-CBIL, i7 2630QM 2GHz
32GB DDR3 RAM @1333MHz
GTX560M 3GB DDR5 (192 bit)
17.3" LED 1920x1080
Sentelic TP, BIOS 203
Debian Linux Wheezy (Testing) Kernel 3.2, NVIDIA 295.40