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  1. #1
    Banned Array
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    Exclamation How to check which stepping is my CPU?

    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

  2. #2
    ROG Guru: Orange Belt Array
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    CPU-Z has a section called "stepping" on its main window.

  3. #3
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    yes but what stepping should it be and under what? south bridge?

  4. #4
    ROG Guru: Orange Belt Array
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    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.

    Click image for larger version. 

Name:	stepping.JPG 
Views:	1 
Size:	49.5 KB 
ID:	28046
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  5. #5
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    mine says Stepping 3 and Revision C0

    does that mean I have the USB bug?

    I did upgrade to BIOS 208

  6. #6
    ROG Guru: Orange Belt Array
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    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.

  7. #7
    ROG Guru: Platinum Belt Array hmscott PC Specs
    hmscott PC Specs
    Laptop (Model)Asus G750JH-DB71 (legacy)
    MotherboardAsus G750JH Intel HM87
    ProcessorIntel i7-4700HQ XTU Cores 36x/35x/34x/34x Cache 36x -50mV undervolt
    Memory (part number)Hyundai Electronics HMT41GS6AFR8A-PB 1.35v DDR3L-1600MHz
    Graphics Card #1Nvidia 780m Asus GPU Tweak OC 932mhz/6300mhz
    Sound CardRealtek v6.0.1.7469 driver
    MonitorAUO B173HW02 V1 Custom Refresh 85hz
    Storage #1RAID0 2x M.2 SATA Crucial MX200 512GB CT500MX200SSD6
    Storage #2Crucial 512GB 2.5" MX200 CT500MX200SSD1
    Power Supply230w AC Power Adapter 19.5v
    Keyboard Logitech k400 Wireless KB/Trackpad
    Headset Sony MDR-XB500 Wired and Sennheiser RS-220 Wireless TOSLINK
    OS Windows 8.1 + 8 Linux VM's + Windows 10 Technical Preview
    Network RouterAsus RT-AC68U DLINK DIR-655

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    Quote Originally Posted by villiansv View Post
    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?
    Last edited by hmscott; 10-16-2013 at 11:49 PM.

  8. #8
    ROG Guru: Orange Belt Array
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    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.

  9. #9
    ROG Guru: Orange Belt Array
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    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.

  10. #10
    ROG Guru: Platinum Belt Array hmscott PC Specs
    hmscott PC Specs
    Laptop (Model)Asus G750JH-DB71 (legacy)
    MotherboardAsus G750JH Intel HM87
    ProcessorIntel i7-4700HQ XTU Cores 36x/35x/34x/34x Cache 36x -50mV undervolt
    Memory (part number)Hyundai Electronics HMT41GS6AFR8A-PB 1.35v DDR3L-1600MHz
    Graphics Card #1Nvidia 780m Asus GPU Tweak OC 932mhz/6300mhz
    Sound CardRealtek v6.0.1.7469 driver
    MonitorAUO B173HW02 V1 Custom Refresh 85hz
    Storage #1RAID0 2x M.2 SATA Crucial MX200 512GB CT500MX200SSD6
    Storage #2Crucial 512GB 2.5" MX200 CT500MX200SSD1
    Power Supply230w AC Power Adapter 19.5v
    Keyboard Logitech k400 Wireless KB/Trackpad
    Headset Sony MDR-XB500 Wired and Sennheiser RS-220 Wireless TOSLINK
    OS Windows 8.1 + 8 Linux VM's + Windows 10 Technical Preview
    Network RouterAsus RT-AC68U DLINK DIR-655

    Join Date
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    Quote Originally Posted by villiansv View Post
    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?
    Last edited by hmscott; 10-17-2013 at 12:21 AM.

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