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Umb
Paper Tape
Posts: 3
Registered: ‎08-14-2014
Location: Italy
Views: 18,256
Message 1 of 8

Lenovo G50-70 freezes randomly

Hello, i bought a Lenovo G50-70 about 3 months ago and i was happy about it until it suddenly began to randomly freeze. For less then a second everything freezes, even the mouse. It happens very frequently, at least once every 10-15 seconds and the problem is easily observable if you are listening to music or watching some video.

I mainly use the computer to develop software, reading e-mails, watching videos on YouTube and sometimes to play some videogames, so I'm almost certain that the problem wasn't a virus because I'm careful about web contents and also because a couple of antivirus and malwarebytes didn't find anything. Moreover I didn't notice any suspicious software running or getting all system resources.

I did a factory reset and the problem vanished, but sometimes, after hours of quite intense use of the computer it happens again. When it happens under these conditions the problem simply disappears with a reboot, while it was a persistent problem before. However a couple of days ago I installed DirectX to play a game and immediately after the installation the problem occurred again. I managed to "solve" it by recovering old system settings.

 

I really wasn't able to find a solution or even find the cause of the problem, but maybe DirectX installation is a good hint. I did a hardware check using Lenovo Solution Center and i got one warning regarding the stress test of the Intel HD graphic card. 
Here's the report:

Passed
giovedì 14 agosto 2014 13:42:38
Lenovo Solution Center Log File
Result code: WMEBVV000-DJ7C5H
Memory
Display name	Physical memory
Physical Memory	8.000 GB
Index 0
Manufacturer	Hynix
Speed	1600 MHz
Size	4.000 GB
Part Number	HMT451S6AFR8A-PB
Serial	213B4472
Type	UNKNOWN
Index 1
Manufacturer	Hynix
Speed	1600 MHz
Size	4.000 GB
Part Number	HMT451S6AFR8A-PB
Serial	213B4466
Type	UNKNOWN
Diagnostics
Quick random pattern test	Passed
Advanced integrity test	Passed
Address test	Passed
Bit low test	Passed
Bit high test	Passed
Walking ones left test	Passed
Walking ones right test	Passed
Modulo 20 test	Passed
Moving inversions 8 bit test	Passed
Moving inversions 32 bit test	Passed
Random pattern test	Passed
Random number sequence test	Passed
Block move test	Passed
Result code: WMB00B000-DJ7C5H
Motherboard
Display name	Motherboard
USB host controller count:	2
PCI device count:	14
RTC present:	Yes
Index 1
Slot:	00:00.0
Class name:	Bridge
Subclass name:	Host bridge
Index 2
Slot:	00:02.0
Class name:	Display controller
Subclass name:	VGA compatible controller
Index 3
Slot:	00:14.0
Class name:	Serial bus controller
Subclass name:	USB controller
Index 4
Slot:	00:16.0
Class name:	Communication controller
Subclass name:	Communication controller
Index 5
Slot:	00:1b.0
Class name:	Multimedia controller
Subclass name:	Audio device
Index 6
Slot:	00:1c.0
Class name:	Bridge
Subclass name:	PCI bridge
Index 7
Slot:	00:1c.3
Class name:	Bridge
Subclass name:	PCI bridge
Index 8
Slot:	00:1c.4
Class name:	Bridge
Subclass name:	PCI bridge
Index 9
Slot:	00:1d.0
Class name:	Serial bus controller
Subclass name:	USB controller
Index 10
Slot:	00:1f.0
Class name:	Bridge
Subclass name:	ISA bridge
Index 11
Slot:	00:1f.2
Class name:	Mass storage controller
Subclass name:	SATA controller
Index 12
Slot:	00:1f.3
Class name:	Serial bus controller
Subclass name:	SMBus
Index 13
Slot:	01:00.0
Class name:	Network controller
Subclass name:	Ethernet controller
Index 14
Slot:	02:00.0
Class name:	Network controller
Subclass name:	Network controller
Index 15
Usb Version:	2.0
Class name:	Human interface device (HID)
Subclass name:	Boot interface subclass
Vendor ID:	0x045E
Product ID:	0x0745
Vendor:	Microsoft
Product:	Microsoft® 2.4GHz Transceiver v8.0
Index 16
Usb Version:	2.0
Class name:	Vendor specific
Subclass name:	Vendor specific
Vendor ID:	0x0BDA
Product ID:	0x0129
Vendor:	Not available
Product:	Not available
Index 17
Usb Version:	2.0
Class name:	Miscellaneous device
Subclass name:	Not available
Vendor ID:	0x0BDA
Product ID:	0x579A
Vendor:	Not available
Product:	Not available
Index 18
Usb Version:	2.1
Class name:	Wireless
Subclass name:	Radio frequency
Vendor ID:	0x0BDA
Product ID:	0xB728
Vendor:	Not available
Product:	Not available
Diagnostics
Chipset Test	Passed
PCI/PCI-express Bus Test	Passed
USB test	Passed
Result code: WPE001000-DJ7C5H
PCI Express
Display name	PCI Express
PCI0	0:1b.0
PCI1	1:0.0
PCI2	2:0.0
Index 0
Bus	0x0
Device	0x1b
Function	0x0
Device connected	No
Vendor ID	0x8086
Vendor name	Intel Corporation
Class	0x4
Class name	Multimedia controller
Subclass	0x3
Subclass name	Audio device
Index 1
Bus	0x1
Device	0x0
Function	0x0
Device connected	Yes
Vendor ID	0x10ec
Vendor name	Realtek Semiconductor Co., Ltd.
Class	0x2
Class name	Network controller
Subclass	0x0
Subclass name	Ethernet controller
Index 2
Bus	0x2
Device	0x0
Function	0x0
Device connected	Yes
Vendor ID	0x10ec
Vendor name	Realtek Semiconductor Co., Ltd.
Class	0x2
Class name	Network controller
Subclass	0x80
Subclass name	Network controller
Diagnostics
PCI express status test	Passed
Result code: WHD01V000-DJ7C5H
Storage devices
Display name	ST1000LM024 HN-M101MBB - 931.51 GBs
Manufacturer	St1000lm024
Model	ST1000LM024 HN-M101MBB
Serial	S30YJ9CF208033
Firmware	2BA30001
Size	931.51 GBs
Rotation Rate	5400 RPM
Cache	16.00 MBs
Temperature	38 C
Physical sector size	4096
Logical sector size	512
Logical sectors	1953525168
Supported standards	ATA8-ACS, ATA7-ATAPI, ATA6-ATAPI, ATA5-ATAPI, ATA4-ATAPI
Spec version	ATA8-ACS version 6
Partition schema	GPT
Diagnostics
SMART status test	Passed
Targeted read test	Passed
Random seek test	Passed
Funnel seek test	Passed
SMART short self-test	Passed
SMART drive self-test	Passed
Result code: WVC00V000-DJ7C5H
Video card
Display name	Intel(R) HD Graphics Family
Description	Intel(R) HD Graphics Family
Displays	1
DirectX driver version	10.18.10.3621
Driver name	IGDUMDIM64.DLL
OpenCL version	OpenCL 1.2
OpenCL driver version	10.18.10.3621
Number of Cores	20
Global memory size	1.47 GBs
Global memory cache size	2.10 MBs
Local memory size	65.54 KBs
Diagnostics
Video memory test	Passed
Mathematical operations test	Passed
Texture pipeline test	Passed
Extended video memory test	Passed
Stress test	Warning
Result code: WVC00R000-DJ7C5H
Video card
Display name	AMD Radeon HD 8500M
Description	AMD Radeon HD 8500M
OpenCL version	OpenCL 1.2 AMD-APP (1445.5)
OpenCL driver version	1445.5 (VM)
Number of Cores	4
Global memory size	2.15 GBs
Global memory cache size	16.38 KBs
Local memory size	32.77 KBs
Diagnostics
Video memory test	Passed
Mathematical operations test	Passed
Extended video memory test	Passed
Stress test	Passed
Result code: WWF00F000-DJ7C5H
Wireless
Display name	Realtek RTL8723BE Wireless LAN 802.11n PCI-E NIC
MAC Address	9C:D2:1E:BF:98:6D
Manufacturer	Realtek Semiconductor Corp.
Name	{449E22FB-FAB0-4F72-9B94-8CFA967E0F03}
Product name	Realtek RTL8723BE Wireless LAN 802.11n PCI-E NIC
Diagnostics
Radio enabled test	Passed
Network scan test	Passed
Signal strength test	Passed
Local connection test	Passed

 

I hope Lenovo's technical support can help me here because this is a serious problem to me.
Thank you for your attention.

 

Umberto

PushaMD
What's DOS?
Posts: 1
Registered: ‎10-25-2014
Location: Moldova
Views: 17,926
Message 2 of 8

Re: Lenovo G50-70 freezes randomly

Hey mate, i had the same problem. My Lenovo G50-70 freezed frequently , for less then a second once in 10-20 seconds. The problems, was, when i checked the drivers,  i found that i had 2 Audio Drivers , and that was my problem, hope this helps you. Cheers ! 

Umb
Paper Tape
Posts: 3
Registered: ‎08-14-2014
Location: Italy
Views: 18,118
Message 3 of 8

Re: Lenovo G50-70 freezes randomly

Thanks for your answer, I found the cause of this problem about a month ago. 
The problem was caused by the fact that the notebook mounts a "modified" version of the amd graphic card so you can't install the official amd driver release, but you have to get graphic drivers from lenovo site.

 

I hope this can help others with similiar problems.

ian0202
Paper Tape
Posts: 2
Registered: ‎11-14-2014
Location: Philippines
Views: 17,008
Message 4 of 8

Re: Lenovo G50-70 freezes randomly

Hello Please i need Help, I Just Go This Laptop , and when i did the hardware scan and when it reaches the stress test of intel it says warning.

 

here is a pictureTroubleShooting.png

andalarvie
What's DOS?
Posts: 2
Registered: ‎12-09-2014
Location: philippines
Views: 16,782
Message 5 of 8

Re: Lenovo G50-70 freezes randomly

ian0202

 

i also have the same warning sign with the stress test.. found any solution?

Umb
Paper Tape
Posts: 3
Registered: ‎08-14-2014
Location: Italy
Views: 16,778
Message 6 of 8

Re: Lenovo G50-70 freezes randomly

About that warning, Lenovo's technical assistance said that it was ok
andalarvie
What's DOS?
Posts: 2
Registered: ‎12-09-2014
Location: philippines
Views: 16,771
Message 7 of 8

Re: Lenovo G50-70 freezes randomly

thank you Smiley Happy

alex_elguay
What's DOS?
Posts: 1
Registered: ‎03-30-2015
Location: France
Views: 15,541
Message 8 of 8

Re: Lenovo G50-70 freezes randomly

Hi, I have the same problem it's really annoying, I want to try the umb's solution, I found the drivers' page http://support.lenovo.com/us/en/products/laptops-and-netbooks/lenovo-g-series-laptops/g50-70-noteboo...

but I don't know which Driver I have to download ?

Thanks

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