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  1. #1
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    Desktop ROG G20CB – random freezes & crashes with 100% SSD usage

    Hi guys,

    I have a Desktop Asus ROG G20CB. The exact configuration is following :
    i5-6400 @ 2.70Ghz
    16 GB RAM
    GTX 970 4GB GDDR5
    SSD Kingston 512 GB (RBU-SC152S37512GG)
    Windows 10 Home


    Since I bought it, I experienced annoying freezes and crashes. They seem to happen very randomly, sometimes when I do nothing specific like browsing the web, sometimes while playing heavy 3D games. The PC already crashes 2 min after boot, doing nothing. Somedays, I can encounter 3 crashes, but sometimes I can also work 3 days straight without having a single issue.

    When it happens, it’s always the same story: the computer starts to freeze, the processes become unresponsive, and 2 minutes later: BSOD with various stop codes: UNEXPECTED_STORE_EXCEPTION, CRITICAL_PROCESS_DIED, KERNEL_DATA_INPAGE_ERROR ou IRQL_NO_LESS_OR_EQUAL.
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    Please also note that each time I get a BSOD, the computer reboots in the bios. I have to manually reboot it to leave the bios and boot again in Windows. I don’t know if it’s expected.

    I highly suspect my SSD. Because when the computer freezes, I can see my SSD at 100% usage in the Task Manager, without any reason:
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    It also happen quite frequently that the SSD goes up to 90% ~ 100% of usage during few seconds without any reason, and goes back to normal afterwards.

    I installed several monitoring softwares on my computer, but they all say that everything fine. For example, according to the Kingston SSD Manager, my SDD is perfectly healthy.
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    Here are the SMART “Attributes” from GSmartControl:
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    SMART Attributes Data Structure revision number: 16
    Vendor Specific SMART Attributes with Thresholds:
    ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
    1 Raw_Read_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0
    2 Throughput_Performance 0x0005 100 100 050 Pre-fail Offline - 0
    3 Spin_Up_Time 0x0007 100 100 050 Pre-fail Always - 0
    5 Reallocated_Sector_Ct 0x0013 100 100 050 Pre-fail Always - 0
    7 Unknown_SSD_Attribute 0x000b 100 100 050 Pre-fail Always - 0
    8 Unknown_SSD_Attribute 0x0005 100 100 050 Pre-fail Offline - 0
    9 Power_On_Hours 0x0012 100 100 000 Old_age Always - 1374
    12 Power_Cycle_Count 0x0012 100 100 000 Old_age Always - 525
    168 Unknown_Attribute 0x0012 100 100 000 Old_age Always - 0
    170 Unknown_Attribute 0x0003 100 100 010 Pre-fail Always - 734
    173 Unknown_Attribute 0x0012 100 100 000 Old_age Always - 5439636
    175 Program_Fail_Count_Chip 0x0013 100 100 050 Pre-fail Always - 0
    183 Runtime_Bad_Block 0x0012 100 100 100 Old_age Always FAILING_NOW 206168129619
    187 Reported_Uncorrect 0x0012 100 100 000 Old_age Always - 0
    192 Power-Off_Retract_Count 0x0012 100 100 000 Old_age Always - 106
    194 Temperature_Celsius 0x0023 059 053 030 Pre-fail Always - 41 (Min/Max 18/47)
    196 Reallocated_Event_Count 0x0002 100 100 010 Old_age Always - 0
    197 Current_Pending_Sector 0x0032 100 100 000 Old_age Always - 0
    199 UDMA_CRC_Error_Count 0x000b 100 100 050 Pre-fail Always - 0
    218 Unknown_Attribute 0x000b 100 100 050 Pre-fail Always - 0
    231 Temperature_Celsius 0x0013 100 100 000 Pre-fail Always - 98
    233 Media_Wearout_Indicator 0x000b 100 100 000 Pre-fail Always - 37979
    240 Unknown_SSD_Attribute 0x0013 100 100 000 Pre-fail Always - 0
    241 Total_LBAs_Written 0x0012 100 100 000 Old_age Always - 5726
    242 Total_LBAs_Read 0x0012 100 100 000 Old_age Always - 6069
    244 Unknown_Attribute 0x0002 100 100 000 Old_age Always - 83
    245 Unknown_Attribute 0x0002 100 100 000 Old_age Always - 148
    246 Unknown_Attribute 0x0012 100 100 000 Old_age Always - 11293056


    I obviously tried to format the SSD and reinstall everything, without any success.
    Does anyone of you have experienced the same issue?
    Do you have any ideas that I could try? Or do you understand the SMART attributes?

    Thanks
    Yan

  2. #2
    ROG Guru: Orange Belt Array chilinmichael's Avatar
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    Is there newer firmware for your SSD?


    Sent from my iPhone using Tapatalk Pro
    Asus G20CB - Core i7 6700, Nvidia GTX980, 16GB Ram, 256GB SK Hynix SSD, 1TB Samsung SSD.

  3. #3
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    The Kingston SSD Manager says that the firmware is up to date
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  4. #4
    ROG Guru: Orange Belt Array chilinmichael's Avatar
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    Is your BIOS SATA set to Raid or AHCI?
    Asus G20CB - Core i7 6700, Nvidia GTX980, 16GB Ram, 256GB SK Hynix SSD, 1TB Samsung SSD.

  5. #5
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    RAID

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    thanks!

  6. #6
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    Something is weird.
    As you can see in the previous screenshot, the SATA mode seems to be set as RAID.

    But I looked a bit more in the Bios "Advanced" tab. There is a "Intel Rapid Storage Technology" menu.
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    In it, I can see my SSD listed as a "Non-RAID Physical Disk"
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    And by clicking on it, I can see that the SSD is in AHCI mode. So I don't get it...
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  7. #7
    ROG Guru: Orange Belt Array chilinmichael's Avatar
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    That SATA mode selection should be AHCI. You can change it after Win10 install (or 7) but you need to research the registry key to change/procedure. I'd do it pre-install if possible.
    Asus G20CB - Core i7 6700, Nvidia GTX980, 16GB Ram, 256GB SK Hynix SSD, 1TB Samsung SSD.

  8. #8
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    Thank you so much for your recommendation.

    So I found the procedure, changed the registry keys to modify, change the SATA mode in the bios.
    I checked in Window to make sure the SSD was properly using AHCI. I checked in the device manager, and I installed AS SSD benchmark, and it seems to be the case:
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    Unfortunately, it doesn't solve the problem. I still encounter 100% disk usage peaks doing nothing particular intensive. And it crashed already 2 times since I changed the SATA mode.

  9. #9
    ROG Guru: Orange Belt Array chilinmichael's Avatar
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    Well, was worth a shot as that enables the extra SATA features. That being said, I'd use a program like SiSoft Sandra to figure out where the issue lies.
    Asus G20CB - Core i7 6700, Nvidia GTX980, 16GB Ram, 256GB SK Hynix SSD, 1TB Samsung SSD.

  10. #10
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    Thanks for your help. I will keep investigating.

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