Question PC rarely freezes

[Solsidus]

Hello!

My system is:

Operating System Microsoft Windows 10 Home​

Motherboard Asus Z170-A​

BIOS Type AMI (03/15/2018)​

CPU QuadCore Intel Core i5-6600K, 3900 MHz (39 x 100)​

RAM 2x Corsair Vengeance LPX CMK16GX4M2A2133C13 8 GB DDR4-2133 DDR4 SDRAM​

GPU Gigabyte GeForce GTX 1070 G1 Gaming​

Disk Drive M4-CT128M4SSD2 (128 GB, SATA-III)​

Disk Drive WDC WD1003FZEX-00MK2A0 (1 TB, 7200 RPM, SATA-III)
PSU Corsair CS650M​

Since the assembly, the system freezes (it may freeze 1-2 times a day, it may not hang for a couple of weeks, but on average every 5-7 days). In 100% of cases this happens at a high load - playing the game + watching video on YouTube.

On freeze the last image hangs on the screen, PC stops responding to any actions - only a hard reset helps. Caps / Num LEDs on keyboard doesn't respond.

Temperatures look OK even at the time of the freeze.

I have just tested the RAM with MemTest - one of the modules gives test 13 (hammer test) error in 3 launches out of 4, the second - in 1 out of 4, when running the test for two modules together, an error did not occur during one run.

Can my memory cause this problem?

Spoiler: DIMM 1 MemTest result

Summary

Report Date	2019-02-17 07:31:13
Generated by	MemTest86 V8.1 Free (64-bit)
Result	FAIL

System Information

EFI Specifications	2.50
System
Manufacturer	System manufacturer
Product Name	System Product Name
Version	System Version
Serial Number	System Serial Number
BIOS
Vendor	American Megatrends Inc.
Version	3802
Release Date	03/15/2018
Baseboard
Manufacturer	ASUSTeK COMPUTER INC.
Product Name	Z170-A
Version	Rev 1.xx
Serial Number	160368641205378
CPU Type	Intel Core i5-6600K @ 3.50GHz
CPU Clock	3505 MHz [Turbo: 3905.6 MHz]
# Logical Processors	4
L1 Cache	4 x 64K (220196 MB/s)
L2 Cache	4 x 256K (97152 MB/s)
L3 Cache	6144K (56705 MB/s)
Memory	8139M (13940 MB/s)
DIMM Slot #0	8GB DDR4 XMP PC4-17000
	Corsair / CMK16GX4M2A2133C13
	13-15-15-28 / 2132 MHz / 1.200V

Result summary

Test Start Time	2019-02-17 01:19:30
Elapsed Time	2:14:06
Memory Range Tested	0x0 - 26F000000 (9968MB)
CPU Selection Mode	Parallel (All CPUs)
ECC Polling	Enabled
# Tests Passed	45/48 (93%)

Lowest Error Address	0x6D2C64C8 (1746MB)
Highest Error Address	0x23411DDB0 (9025MB)
Bits in Error Mask	0000000020500010
Bits in Error	4
Max Contiguous Errors	1

Test	# Tests Passed	Errors
Test 0 [Address test, walking ones, 1 CPU]	4/4 (100%)	0
Test 1 [Address test, own address, 1 CPU]	4/4 (100%)	0
Test 2 [Address test, own address]	4/4 (100%)	0
Test 3 [Moving inversions, ones & zeroes]	4/4 (100%)	0
Test 4 [Moving inversions, 8-bit pattern]	4/4 (100%)	0
Test 5 [Moving inversions, random pattern]	4/4 (100%)	0
Test 6 [Block move, 64-byte blocks]	4/4 (100%)	0
Test 7 [Moving inversions, 32-bit pattern]	4/4 (100%)	0
Test 8 [Random number sequence]	4/4 (100%)	0
Test 9 [Modulo 20, ones & zeros]	4/4 (100%)	0
Test 10 [Bit fade test, 2 patterns, 1 CPU]	4/4 (100%)	0
Test 13 [Hammer test]	1/4 (25%)	5

Last 10 Errors

2019-02-17 03:32:59 - [Data Error] Test: 13, CPU: 0, Address: 2090864D8, Expected: A1294AFC, Actual: A1694AFC

2019-02-17 03:31:14 - [Data Error] Test: 13, CPU: 0, Address: 6D2C64C8, Expected: DCA312B7, Actual: DCA312A7

2019-02-17 02:17:34 - [Data Error] Test: 13, CPU: 0, Address: 1B183D308, Expected: FE042ECC, Actual: FE142ECC

2019-02-17 02:16:24 - [Data Error] Test: 13, CPU: 0, Address: 6D2C64C8, Expected: 645FDF79, Actual: 645FDF69

2019-02-17 01:41:03 - [Data Error] Test: 13, CPU: 0, Address: 23411DDB0, Expected: 8B5D199F, Actual: AB5D199F

Spoiler: DIMM 2 MemTest result

Summary

Report Date	2019-02-17 10:57:41
Generated by	MemTest86 V8.1 Free (64-bit)
Result	FAIL

System Information

EFI Specifications	2.50
System
Manufacturer	System manufacturer
Product Name	System Product Name
Version	System Version
Serial Number	System Serial Number
BIOS
Vendor	American Megatrends Inc.
Version	3802
Release Date	03/15/2018
Baseboard
Manufacturer	ASUSTeK COMPUTER INC.
Product Name	Z170-A
Version	Rev 1.xx
Serial Number	160368641205378
CPU Type	Intel Core i5-6600K @ 3.50GHz
CPU Clock	3505 MHz [Turbo: 3905.6 MHz]
# Logical Processors	4
L1 Cache	4 x 64K (220197 MB/s)
L2 Cache	4 x 256K (97692 MB/s)
L3 Cache	6144K (53869 MB/s)
Memory	8139M (13790 MB/s)
DIMM Slot #0	8GB DDR4 XMP PC4-17000
	Corsair / CMK16GX4M2A2133C13
	13-15-15-28 / 2132 MHz / 1.200V

Result summary

Test Start Time	2019-02-17 07:39:35
Elapsed Time	2:14:03
Memory Range Tested	0x0 - 26F000000 (9968MB)
CPU Selection Mode	Parallel (All CPUs)
ECC Polling	Enabled
# Tests Passed	47/48 (97%)

Lowest Error Address	0x16488F140 (5704MB)
Highest Error Address	0x16488F140 (5704MB)
Bits in Error Mask	0000000000001000
Bits in Error	1
Max Contiguous Errors	1

Test	# Tests Passed	Errors
Test 0 [Address test, walking ones, 1 CPU]	4/4 (100%)	0
Test 1 [Address test, own address, 1 CPU]	4/4 (100%)	0
Test 2 [Address test, own address]	4/4 (100%)	0
Test 3 [Moving inversions, ones & zeroes]	4/4 (100%)	0
Test 4 [Moving inversions, 8-bit pattern]	4/4 (100%)	0
Test 5 [Moving inversions, random pattern]	4/4 (100%)	0
Test 6 [Block move, 64-byte blocks]	4/4 (100%)	0
Test 7 [Moving inversions, 32-bit pattern]	4/4 (100%)	0
Test 8 [Random number sequence]	4/4 (100%)	0
Test 9 [Modulo 20, ones & zeros]	4/4 (100%)	0
Test 10 [Bit fade test, 2 patterns, 1 CPU]	4/4 (100%)	0
Test 13 [Hammer test]	3/4 (75%)	1

Last 10 Errors

2019-02-17 08:37:13 - [Data Error] Test: 13, CPU: 0, Address: 16488F140, Expected: 239FC558, Actual: 239FD558

Spoiler: DIMM 1 + 2 MemTest result

Summary

Report Date	2019-02-17 11:30:56
Generated by	MemTest86 V8.1 Free (64-bit)
Result	PASS

System Information

EFI Specifications	2.50
System
Manufacturer	System manufacturer
Product Name	System Product Name
Version	System Version
Serial Number	System Serial Number
BIOS
Vendor	American Megatrends Inc.
Version	3802
Release Date	03/15/2018
Baseboard
Manufacturer	ASUSTeK COMPUTER INC.
Product Name	Z170-A
Version	Rev 1.xx
Serial Number	160368641205378
CPU Type	Intel Core i5-6600K @ 3.50GHz
CPU Clock	3505 MHz [Turbo: 3905.6 MHz]
# Logical Processors	4
L1 Cache	4 x 64K (211181 MB/s)
L2 Cache	4 x 256K (97048 MB/s)
L3 Cache	6144K (54227 MB/s)
Memory	16331M (22956 MB/s)
DIMM Slot #0	8GB DDR4 XMP PC4-17000
	Corsair / CMK16GX4M2A2133C13
	13-15-15-28 / 2132 MHz / 1.200V
DIMM Slot #1	8GB DDR4 XMP PC4-17000
	Corsair / CMK16GX4M2A2133C13
	13-15-15-28 / 2132 MHz / 1.200V

Result summary

Test Start Time	2019-02-17 11:00:30
Elapsed Time	0:30:23
Memory Range Tested	0x0 - 46F000000 (18160MB)
CPU Selection Mode	Parallel (All CPUs)
ECC Polling	Enabled
# Tests Passed	14/14 (100%)

Test	# Tests Passed	Errors
Test 0 [Address test, walking ones, 1 CPU]	2/2 (100%)	0
Test 1 [Address test, own address, 1 CPU]	2/2 (100%)	0
Test 2 [Address test, own address]	1/1 (100%)	0
Test 3 [Moving inversions, ones & zeroes]	1/1 (100%)	0
Test 4 [Moving inversions, 8-bit pattern]	1/1 (100%)	0
Test 5 [Moving inversions, random pattern]	1/1 (100%)	0
Test 6 [Block move, 64-byte blocks]	1/1 (100%)	0
Test 7 [Moving inversions, 32-bit pattern]	1/1 (100%)	0
Test 8 [Random number sequence]	1/1 (100%)	0
Test 9 [Modulo 20, ones & zeros]	1/1 (100%)	0
Test 10 [Bit fade test, 2 patterns, 1 CPU]	1/1 (100%)	0
Test 13 [Hammer test]	1/1 (100%)	0

Test 13 [Hammer test] Warning

Note: Your RAM may be vulnerable to high frequency row hammer bit flips. However the conditions needed to induce these errors occur only very rarely in normal PC usage, and so this should not be of concern to most users.

Thanks in advance!

 

[shknawe]

The test is normal most ram will show this "error" . I believe your problem is simply over tasking your cpu with gaming and browsing and it quits on you. You can probably use task manager and see what it shows when you game and browse. Perhaps check your browser setting to see if you have browsing gpu hardware enabled to off load the video to your gpu. Maybe this will help.

 

[Solsidus]

I could understand the lags, but a complete freeze does not seem to me a normal behavior. I’m sure this is a hardware problem and I want to find the problem part and replace it. Any suggestions?

 

[Solsidus]

The problem still persists, it occurs quite rarely, so I am in no hurry to solve it. I recently managed to catch a freeze with an open AIDA . Are some of these indicators out of the norm?