Memtest86 Results interpretation

[jornvdcb]

Hello,

I cannot enter Windows 10 after a BSOD "page fault in nonpaged area" popped up. I also get the message when I try to load up the Windows Setup USB Iso.
Unplugged all peripherals. Did a Memtest86 and it gave me only errors with a Test 6 on CPU 1. I also swapped the ram to different slots, also did the test with single ram slots. It all came back to the same result.

I was hoping any expert can shine some light on this.

Summary

Report Date	2020-02-11 18:03:51
Generated by	MemTest86 V8.3 Free (64-bit)
Result	FAIL

System Information

EFI Specifications	2.60
System
Manufacturer	System manufacturer
Product Name	System Product Name
Version	System Version
Serial Number	System Serial Number
BIOS
Vendor	American Megatrends Inc.
Version	2401
Release Date	07/15/2019
Baseboard
Manufacturer	ASUSTeK COMPUTER INC.
Product Name	ROG STRIX Z370-G GAMING
Version	Rev X.0x
Serial Number	180425521400198
CPU Type	Intel Core i5-8600K @ 3.60GHz
CPU Clock	3637 MHz [Turbo: 4226.7 MHz]
# Logical Processors	6
L1 Cache	4 x 64K (206024 MB/s)
L2 Cache	4 x 256K (90920 MB/s)
L3 Cache	9216K (28192 MB/s)
Memory	16332M (18718 MB/s)
DIMM Slot #0	8GB DDR4 XMP PC4-23900
	Corsair / CMK16GX4M2B3000C15
	15-17-17-35 / 2998 MHz / 1.350V
DIMM Slot #1	8GB DDR4 XMP PC4-23900
	Corsair / CMK16GX4M2B3000C15
	15-17-17-35 / 2998 MHz / 1.350V

Result summary

Test Start Time	2020-02-11 17:31:06
Elapsed Time	0:31:31
Memory Range Tested	0x0 - 437000000 (17264MB)
CPU Selection Mode	Parallel (All CPUs)
ECC Polling	Enabled
# Tests Passed	11/12 (91%)

Lowest Error Address	0xA810E588 (2689MB)
Highest Error Address	0xC430F2A8 (3139MB)
Bits in Error Mask	0000000000000800
Bits in Error	1
Max Contiguous Errors	1

Test	# Tests Passed	Errors
Test 0 [Address test, walking ones, 1 CPU]	1/1 (100%)	0
Test 1 [Address test, own address, 1 CPU]	1/1 (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]	0/1 (0%)	8
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

Last 10 Errors

2020-02-11 17:33:50 - [Data Error] Test: 6, CPU: 1, Address: C430F2A8, Expected: FFFFD7FF, Actual: FFFFDFFF

2020-02-11 17:33:50 - [Data Error] Test: 6, CPU: 1, Address: C4305AA8, Expected: FFFFF7FF, Actual: FFFFFFFF

2020-02-11 17:33:50 - [Data Error] Test: 6, CPU: 1, Address: C42FFA28, Expected: FFFFF5FF, Actual: FFFFFDFF

2020-02-11 17:33:50 - [Data Error] Test: 6, CPU: 1, Address: C42DA988, Expected: FFFFD7FF, Actual: FFFFDFFF

2020-02-11 17:33:50 - [Data Error] Test: 6, CPU: 1, Address: C42D1188, Expected: FFFFF7FF, Actual: FFFFFFFF

2020-02-11 17:33:50 - [Data Error] Test: 6, CPU: 1, Address: C42CB108, Expected: FFFFF5FF, Actual: FFFFFDFF

2020-02-11 17:33:49 - [Data Error] Test: 6, CPU: 1, Address: A813BD68, Expected: FFFFD7FF, Actual: FFFFDFFF

2020-02-11 17:33:49 - [Data Error] Test: 6, CPU: 1, Address: A810E588, Expected: FFFFD7FF, Actual: FFFFDFFF

[David (PassMark)]

Looks like bad RAM.
See,
https://www.memtest86.com/troubleshooting.htm

[jornvdcb]

Both RAM modules? Should be a coincidence then.

[David (PassMark)]

Was it really exactly the same error with both RAM sticks?
I've got some doubts.

[jornvdcb]

No, sometimes I got more then over 1000 errors but the one constant is always on the same cpu. This report only shows 8 errors, the numbers of errors are random no matter in what order the ram slots are filled.

[David (PassMark)]

You can force the CPU core from the configuration screen. This will allow you to check if the problem is just on one CPU core.

[jornvdcb]

Yes if I choose parallel cpu or the specific cpu core, it gives me errors only on that core. So you think the cpu is broken?

[David (PassMark)]

If you see the same error on various different cores, then I think it is more likely a RAM failure.

[jornvdcb]

Hello, just to give you all a small update. I've returned the computer to the store and they have tested both RAM sticks on a troubleshoot-build. They were also running Memtest86 and the tests came out 100% positive. So it's probably the CPU or mainboard. I'll update this post with the outcome of the store in 2-4 weeks.