How to check which stepping is my CPU?

[Nehmia]

I heard our G750s have some bug when it comes out of sleep the USB ports don't work?

What is the stepping that I need to be looking for and where?

I launched CPU-Z but shall I look in Southbridge or what? and what stepping do I need

please explain

[villiansv]

CPU-Z has a section called "stepping" on its main window.

[Nehmia]

yes but what stepping should it be and under what? south bridge?

[MrRuckus]

This is just a basic screenshot from CPUZ and not from a laptop. Stepping/revision depends on what Asus was using at the time your laptop was built. They can have different revisions and what not.

[Nehmia]

mine says Stepping 3 and Revision C0

does that mean I have the USB bug?

I did upgrade to BIOS 208

[villiansv]

Check Mainboard tab, Southbridge revision number. 04 = C1 stepping = has bug. No way to fix. 05 = C2 = no bug.

Source - http://uk.hardware.info/news/35295/h...ted-usb-drives and many other easily google-able articles on this.

[hmscott]

Check Mainboard tab, Southbridge revision number. 04 = C1 stepping = has bug. No way to fix. 05 = C2 = no bug.

Source - http://uk.hardware.info/news/35295/h...ted-usb-drives and many other easily google-able articles on this.

villansv, or anyone else out there, have you seen the bug cause a problem?

I haven't had a problem with USB drives, USB thumb drives, or any other USB devices plugged in while sleeping - they all show up and are accessible without a problem. I use both USB3.0 and USB2.0 devices.

I tried to recreate the problem, but can't make it happen, so perhaps I don't have the exact sequence down to make it fail. Anyone else able to recreate a failure on demand?

[villiansv]

No, I have the buggy stepping too (like most if not all of us), but don't have any issues. I recall reading somewhere it doesn't happen with all usb3 drives, but can't remember where.

[villiansv]

Here it is: http://uk.hardware.info/news/34321/i...ntel-statement

"...This issue has only been observed with a small subset of USB SuperSpeed thumb drives and does not affect other USB peripherals..."

No need to worry, really.

[hmscott]

Here it is: http://uk.hardware.info/news/34321/i...ntel-statement

"...This issue has only been observed with a small subset of USB SuperSpeed thumb drives and does not affect other USB peripherals..."

No need to worry, really.

Excellent!

There is a tool, USBView, that we can use to identify SuperSpeed USB 3.0 devices. It is part of the Microsoft Windows Drivers Developer Kit, and I also found an older (but new enough?) version on SoftPedia:

How to determine whether a USB 3.0 device is operating at SuperSpeed?
http://blogs.msdn.com/b/usbcoreblog/...Use_USBView_to

Windows Driver Kit (WDK) 8.1
http://msdn.microsoft.com/en-us/wind...ware/gg454513/

USBView 2.0.1
http://www.softpedia.com/get/System/.../USBView.shtml

My USB 3.0 devices are only showing up as Speed: High, not Speed: Super using the USBView 2.0.1

The only WDK kit I can find now is for Windows 8.1, I guess I will wait until after I update to 8.1 before installing the WDK.

Does anyone have a newer USBView link, or can test the 2.0.1 version with a known Super Speed 3.0 device?