Memtest86 errors, but all ram is fine? (out of options)

[paratroopa]

Hi everyone! I'm new to this forum but I've seen that the people here have alot of knowledge regarding these kind of issues!
I recently built an amazing piece of machine with alot of decent components.
However I've already had my fair share of issues since I first assembled it. BSODS.
These types of BSODS could differ in messages from memory_management to other types which I for now can't recall. I even had crasches on games without any BSODS, all in all some general instability issues.

I want to recall that all problems started when I first bought 2 extra sticks of ram (G.Skill 3200mhz CL 14) and plugged it in my current build making my PC 4 x 8GB 3200Mhz Cl 14.
To make sure that the issues was infact memory related I ran memtest86 with all 4 sicks in to see if it was the sticks of ram causing my issues.
I ran 4 passes and these are the general results.

Tests passed 43/48 89%
Test 0 Error 0
Test 1 Error 0
Test 2 Error 0
Test 3 Error 0
Test 4 Error 0
Test 5 Error 0
Test 6 Error 2
Test 7 Error 6
Test 8 Error 0
Test 9 Error 1
Test 10 Error 0
Test 13 Error 0

Since I got errors in test 6,7,9 I chose to run the sticks one at a time in slot 1 to pinpoint the faulty memory.
I ran all 4 in in slot 1 in passes of 4 And recieved NO errors what so ever.

I then plugged in all 4 and ran the test again to make sure that the test was in fact true and got the following test results with all 4 memories in passes of 4

Tests passed 44/48 91%
Test 0 Error 0
Test 1 Error 0
Test 2 Error 0
Test 3 Error 0
Test 4 Error 0
Test 5 Error 0
Test 6 Error 2
Test 7 Error 6
Test 8 Error 0
Test 9 Error 0
Test 10 Error 0
Test 13 Error 0

The test again showed me the same errors in test 6 and 7.

To exclude any faulty memoryslot on the motherboard I ran the same memorystick in all 4 different slots with no errors.

I've run the memtest86 once again with all 4 to be able to post the HTML for the test:

file:///D:/EFI/BOOT/MemTest86-Report-20180117-001047.html






I've now come to a dead end.
Next step would be to run 2 sticks at a time in the different slots and try different combinations. But I'm starting to question how far I'm willing to go.
Should I RMA the sticks ? Try them in a different rig? RMA the motherboard?
I'm tired and clueless. I'm truly grateful for any possible help.

OS: Windows 10 Pro, latest updates
Processor: Intel Core i7 8700K
Processorcooler: NZXT Kraken X52
Motherboard: Gigabyte Aorus 7, Bios F5e
Memory 4 x 8GB G-Skill 3200mhz CL14, running on XMP profile
GPU: Geforce 780 TI
HDD: Samsung ssd 960 evo m.2 + 7200rpm Seagate Barracuda
PSU: Corsair Powersupply (PSU) RM850i 850W
Other cooling: 3x120mm in (front) och 3x120mm out (back + top)
Temps: around 27C in the box (No overheating problems).

[David (PassMark)]

...to be able to post the HTML for the test

That HTML file didn't appear in your post. So I think you didn't attach it correctly. You could also just copy / past the error details from it.

When you use more than 1 stick (in the correct slots) then the CPU uses the RAM in dual channel mode.
We have seen it fairly often that dual channel mode made results in different errors compared to single channel.
Also using lots of sticks can place higher electrical load on the system. i.e. they draw more current, which means slightly higher voltage drop. And if the sticks are marginal, then this can be enough to put them into fault.

So you could continue to debug them, or try and replace them.
Some debugging steps might be,
- Run them without XMP mode (i.e. at slower clock speeds).
- Slightly increase the voltage levels manually in BIOS
- Run 2 sticks at a time rather than 4
- Try the same sticks in another motherboard
- Try some known good sticks in the current system

[paratroopa]

Hi David! And thank you for such a great answer!
I'm currently at work but ill send a link to the HTML file when I get home!

what I've done so far is to update bios (apparently a new update came early in January)

after that I ran all 4 sticks without the XMP profile at the "recommended" settings set by the bios.
not sure what it ran at but I want to recall it was 2133mhz. I ran the test in 4 passes (I'll add the link later today for the html report), no found errors.

after this I ran the test again with all 4 sticks in XMP profile, and cpu OC to 4.7Ghz (CPU was never clicked during my earlier tests) and got multiple errors in test 6,7,9 (a lot more than before).

this concludes what you just said regarding the electrical load. The faults seem to come from an electrical instability more than the memory sticks.
however, do you think I would get the same results if I RMA the RAM sticks and got newer ones?

thank you again David, I truly appreciate your help.
kind regards.

[paratroopa]

Unfortunately, I did not save the report when no errors were found when all 4 sticks were in. I could try and turn off the XMP profile over night and see the results and post them here within 24hours.

These are the reports before upgrading the BIOS and after updating BIOS.

[IMG]file:///D:/EFI/BOOT/mt86.png[/IMG]

Summary

Report Date	2018-01-17 06:43:41
Generated by	MemTest86 V7.4 Free (64-bit)
Result	FAIL

System Information

EFI Specifications	2.60
System
Manufacturer	Gigabyte Technology Co., Ltd.
Product Name	Z370 AORUS Gaming 7
Version	Default string
Serial Number	Default string
BIOS
Vendor	American Megatrends Inc.
Version	F5e
Release Date	11/16/2017
Baseboard
Manufacturer	Gigabyte Technology Co., Ltd.
Product Name	Z370 AORUS Gaming 7
Version	x.x
Serial Number	Default string
CPU Type	Intel Core i7-8700K @ 3.70GHz
CPU Clock	3734 MHz [Turbo: 4743.0 MHz]
# Logical Processors	12 (6 enabled for testing)
L1 Cache	4 x 64K (296393 MB/s)
L2 Cache	4 x 256K (132044 MB/s)
L3 Cache	12288K (45111 MB/s)
Memory	32726M (30029 MB/s)
DIMM Slot #0	8GB DDR4 XMP PC4-25600
	G Skill Intl / F4-3200C14-8GTZR
	14-14-14-34 / 3200 MHz / 1.350V
DIMM Slot #1	8GB DDR4 XMP PC4-25600
	G Skill Intl / F4-3200C14-8GTZR
	14-14-14-34 / 3200 MHz / 1.350V
DIMM Slot #2	8GB DDR4 XMP PC4-25600
	G Skill Intl / F4-3200C14-8GTZR
	14-14-14-34 / 3200 MHz / 1.350V
DIMM Slot #3	8GB DDR4 XMP PC4-25600
	G Skill Intl / F4-3200C14-8GTZR
	14-14-14-34 / 3200 MHz / 1.350V

Result summary

Test Start Time	2018-01-17 00:10:47
Elapsed Time	5:03:54
Memory Range Tested	0x0 - 82F000000 (33520MB)
CPU Selection Mode	Parallel (All CPUs)
ECC Polling	Enabled
# Tests Passed	40/48 (83%)

Lowest Error Address	0x5B5A0D284 (23386MB)
Highest Error Address	0x7FCD7EBC4 (32717MB)
Bits in Error Mask	0000000003802000
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]	2/4 (50%)	6
Test 7 [Moving inversions, 32-bit pattern]	0/4 (0%)	9
Test 8 [Random number sequence]	4/4 (100%)	0
Test 9 [Modulo 20, ones & zeros]	2/4 (50%)	3
Test 10 [Bit fade test, 2 patterns, 1 CPU]	4/4 (100%)	0
Test 13 [Hammer test]	4/4 (100%)	0

Last 10 Errors

[Data Error] Test: 9, CPU: 4, Address: 7DE46DC84, Expected: 0FEBE0CD, Actual: 0EEBE0CD

[Data Error] Test: 9, CPU: 10, Address: 5C29B5CC4, Expected: 836DB0FA, Actual: 816DB0FA

[Data Error] Test: 7, CPU: 4, Address: 7DEA91F04, Expected: 20000000, Actual: 20002000

[Data Error] Test: 7, CPU: 2, Address: 6EAD7A004, Expected: 02000000, Actual: 00000000

[Data Error] Test: 7, CPU: 2, Address: 642758D44, Expected: 00002000, Actual: 00000000

[Data Error] Test: 7, CPU: 4, Address: 5B5A0D284, Expected: FDFFFFFF, Actual: FFFFFFFF

[Data Error] Test: 9, CPU: 8, Address: 70E0A54C4, Expected: 80BFE8CB, Actual: 82BFE8CB

[Data Error] Test: 7, CPU: 2, Address: 7C06D3344, Expected: 02000000, Actual: 00000000

[Data Error] Test: 7, CPU: 6, Address: 76A93E6C4, Expected: FDFFFFFF, Actual: FFFFFFFF

[Data Error] Test: 7, CPU: 2, Address: 732A08444, Expected: FFFDFFFF, Actual: FFFDDFFF

Certification

This document certifies that the Tests described above have been carried out by a suitably qualified technician on the System described above.

Signed

___________________________

Put your company name here:
Level 5, 63 Foveaux St, Surry Hills, 2010, Sydney, Australia
Phone + 61 2 9690 0444 Fax + 61 2 9690 0445
E-Mail: info@passmark.com


This is the first test with the first errors as was asked to link above.
Notice that the Bios has been updated after this




Summary
Report Date
2018-01-18 08:51:16
Generated by
MemTest86 V7.4 Free (64-bit)
Result
FAIL
System Information
EFI Specifications
2.60
System

Manufacturer
Gigabyte Technology Co., Ltd.
Product Name
Z370 AORUS Gaming 7
Version
Default string
Serial Number
Default string
BIOS

Vendor
American Megatrends Inc.
Version
F5l
Release Date
01/10/2018
Baseboard

Manufacturer
Gigabyte Technology Co., Ltd.
Product Name
Z370 AORUS Gaming 7
Version
x.x
Serial Number
Default string
CPU Type
Intel Core i7-8700K @ 3.70GHz
CPU Clock
3734 MHz [Turbo: 4743.0 MHz]
# Logical Processors
12 (6 enabled for testing)
L1 Cache
4 x 64K (301161 MB/s)
L2 Cache
4 x 256K (131664 MB/s)
L3 Cache
12288K (52919 MB/s)
Memory
32726M (30707 MB/s)
DIMM Slot #0
8GB DDR4 XMP PC4-25600

G Skill Intl / F4-3200C14-8GTZR

14-14-14-34 / 3200 MHz / 1.350V
DIMM Slot #1
8GB DDR4 XMP PC4-25600

G Skill Intl / F4-3200C14-8GTZR

14-14-14-34 / 3200 MHz / 1.350V
DIMM Slot #2
8GB DDR4 XMP PC4-25600

G Skill Intl / F4-3200C14-8GTZR

14-14-14-34 / 3200 MHz / 1.350V
DIMM Slot #3
8GB DDR4 XMP PC4-25600

G Skill Intl / F4-3200C14-8GTZR

14-14-14-34 / 3200 MHz / 1.350V
Result summary
Test Start Time
2018-01-18 02:49:22
Elapsed Time
5:03:35
Memory Range Tested
0x0 - 82F000000 (33520MB)
CPU Selection Mode
Parallel (All CPUs)
ECC Polling
Enabled
# Tests Passed
33/48 (68%)
Lowest Error Address
0x2EE99F984 (12009MB)
Highest Error Address
0x7F5DF1544 (32605MB)
Bits in Error Mask
0000000012886400
Bits in Error
7
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]
2/4 (50%)
3
Test 6 [Block move, 64-byte blocks]
0/4 (0%)
62
Test 7 [Moving inversions, 32-bit pattern]
0/4 (0%)
13
Test 8 [Random number sequence]
3/4 (75%)
2
Test 9 [Modulo 20, ones & zeros]
0/4 (0%)
20
Test 10 [Bit fade test, 2 patterns, 1 CPU]
4/4 (100%)
0
Test 13 [Hammer test]
4/4 (100%)
0
Last 10 Errors
[Data Error] Test: 9, CPU: 8, Address: 7266C2A44, Expected: 60C8554A, Actual: 62C8554A
[Data Error] Test: 9, CPU: 6, Address: 6F0DF5984, Expected: BF3E93AF, Actual: BD3E93AF
[Data Error] Test: 9, CPU: 6, Address: 690838C44, Expected: 5B9D9ED3, Actual: 4B9D9ED3
[Data Error] Test: 9, CPU: 0, Address: 65631D684, Expected: 196B3659, Actual: 1B6B3659
[Data Error] Test: 9, CPU: 8, Address: 64D749C24, Expected: C28AE677, Actual: C28AA677
[Data Error] Test: 9, CPU: 6, Address: 589FD6184, Expected: 17D49233, Actual: 17D4B233
[Data Error] Test: 9, CPU: 0, Address: 45D8A5884, Expected: 6E4C0699, Actual: 6C4C0699
[Data Error] Test: 9, CPU: 8, Address: 43C6C0804, Expected: 2CD8B129, Actual: 2ED8B129
[Data Error] Test: 7, CPU: 4, Address: 7DD64B104, Expected: 00100000, Actual: 00102000
[Data Error] Test: 7, CPU: 10, Address: 7BA8A6CC4, Expected: 00000200, Actual: 02000200
Certification
This document certifies that the Tests described above have been carried out by a suitably qualified technician on the System described above.
Signed

___________________________
Put your company name here:


This is the last test after the BIOS update

Kind Regards

[David (PassMark)]

and cpu OC to 4.7Ghz

It doesn't make sense to start overclocking the CPU while trying to debug the RAM. You are just adding another layer of permutations and complexity.

If you get RAM errors only in XMP mode, without a CPU overclock. Then either the RAM is bad, or the BIOS is bad (meaning the BIOS isn't setting the right voltage and timing values for XMP for this model of RAM). So you could try to tweak the BIOS settings to get it to work, or give up on XMP mode, or send them back for replacement.

[paratroopa]

Thanks once again for responding.
And yes, it really sounds stupid when you put it like that. I didn't clock for the sole purpose of overclocking to boost my CPU in power, however I wanted to compare the tests as close as possible.
The turbo* frequency that was set by my BIOS was in fact 4700, this wasn't a frequency I set myself.
I'll try test it one more time with the standard frequency of my CPU to make sure the RAM isn't the cause. Sorry for my mistake.
Kind regards

[paratroopa]

As mentioned earlier, I changed the turbo option on my CPU from auto to base clock frequency, and I ran memtest again.
Still fails on the test. Here's the result of the memtest.

Kind regards

Summary
Report Date
2018-01-19 12:44:27
Generated by
MemTest86 V7.4 Free (64-bit)
Result
FAIL
System Information
EFI Specifications
2.60
System

Manufacturer
Gigabyte Technology Co., Ltd.
Product Name
Z370 AORUS Gaming 7
Version
Default string
Serial Number
Default string
BIOS

Vendor
American Megatrends Inc.
Version
F5l
Release Date
01/10/2018
Baseboard

Manufacturer
Gigabyte Technology Co., Ltd.
Product Name
Z370 AORUS Gaming 7
Version
x.x
Serial Number
Default string
CPU Type
Intel Core i7-8700K @ 3.70GHz
CPU Clock
3734 MHz
# Logical Processors
12 (6 enabled for testing)
L1 Cache
4 x 64K (234569 MB/s)
L2 Cache
4 x 256K (99840 MB/s)
L3 Cache
12288K (42328 MB/s)
Memory
32726M (26605 MB/s)
DIMM Slot #0
8GB DDR4 XMP PC4-25600

G Skill Intl / F4-3200C14-8GTZR

14-14-14-34 / 3200 MHz / 1.350V
DIMM Slot #1
8GB DDR4 XMP PC4-25600

G Skill Intl / F4-3200C14-8GTZR

14-14-14-34 / 3200 MHz / 1.350V
DIMM Slot #2
8GB DDR4 XMP PC4-25600

G Skill Intl / F4-3200C14-8GTZR

14-14-14-34 / 3200 MHz / 1.350V
DIMM Slot #3
8GB DDR4 XMP PC4-25600

G Skill Intl / F4-3200C14-8GTZR

14-14-14-34 / 3200 MHz / 1.350V
Result summary
Test Start Time
2018-01-19 03:11:20
Elapsed Time
5:41:56
Memory Range Tested
0x0 - 82F000000 (33520MB)
CPU Selection Mode
Parallel (All CPUs)
ECC Polling
Enabled
# Tests Passed
38/48 (79%)
Lowest Error Address
0x3672ECF74 (13938MB)
Highest Error Address
0x7EF4E2544 (32500MB)
Bits in Error Mask
0000000013086000
Bits in Error
6
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]
1/4 (25%)
26
Test 7 [Moving inversions, 32-bit pattern]
2/4 (50%)
6
Test 8 [Random number sequence]
3/4 (75%)
1
Test 9 [Modulo 20, ones & zeros]
0/4 (0%)
9
Test 10 [Bit fade test, 2 patterns, 1 CPU]
4/4 (100%)
0
Test 13 [Hammer test]
4/4 (100%)
0
Last 10 Errors
[Data Error] Test: 9, CPU: 8, Address: 725D78E04, Expected: 78F6F4D8, Actual: 7AF6F4D8
[Data Error] Test: 9, CPU: 8, Address: 6DE46BA44, Expected: AA39E562, Actual: A839E562
[Data Error] Test: 9, CPU: 6, Address: 5D220D984, Expected: 9B3F9BCC, Actual: 993F9BCC
[Data Error] Test: 7, CPU: 0, Address: 7EF4E2544, Expected: 00020000, Actual: 00022000
[Data Error] Test: 7, CPU: 0, Address: 657CE78C4, Expected: 02000000, Actual: 00000000
[Data Error] Test: 7, CPU: 4, Address: 61420F0C4, Expected: 02000000, Actual: 00000000
[Data Error] Test: 9, CPU: 0, Address: 7A6D7F2C4, Expected: 203CCD39, Actual: 303CCD39
[Data Error] Test: 8, CPU: 8, Address: 3672ECF74, Expected: 048D6A10, Actual: 04856A10
[Data Error] Test: 6, CPU: 8, Address: 76F916CC0, Expected: 00000010, Actual: 02000010
[Data Error] Test: 6, CPU: 2, Address: 762556CC0, Expected: 00040000, Actual: 02040000
Certification
This document certifies that the Tests described above have been carried out by a suitably qualified technician on the System described above.
Signed

___________________________
Put your company name here:

[paratroopa]

Hello again!
According to https://www.gskill.com/en/configurat...094&model=3109, recommended volt for my specific RAM when running XMP is supposed to be 1.35v.
I could start tweaking in BIOS and adjusting the volt, but I'm more curious what you would do in my situation David. I don't see any clear fix for my specific issue more than RMA the memory sticks.

The things I haven't yet tried is running the sticks 2 at a time in (1)(3) / (2)(4) / (1)(2) / (3)(4)
I asked a friend that has the same motherboard and CPU to try running my sticks in an memtest. If no errors occur, It would probably mean that the problem is with my motherboard/motherboard slots rather than the sticks.

Kind regards.

[paratroopa]

Hello!
This will be my last post!
I asked my friend with a similar spec to mine to test my ram sticks, this was to exclude any faulty motherboard slots (which was practically impossible due to no errors when testing 1 stick at a time in every single slot).
What he tried was to test the RAM in pairs, the first pair of RAM's he tried resulted in no errors in 4/4 passes. The second pair he tried (which was also the last set of rams I bought) got multiple errors in the memtest.
This concluded that it was in fact the RAM that was faulty, which was weird since I got no errors when trying the RAM's one at a time. The pair of RAM was failing when running 2 or more.

I returned the faulty RAM to the place I bought them and recieved a new pair. I tried the new pair together with my other set of ram in XMP profile and ran the memtest.
I've recieved no errors. And the system seems stable.

Thanks for all the help leading up to this point!

[David (PassMark)]

We have seen it a few times before that errors only appear in dual channel mode, but not single channel. There is a section on our trouble shooting page about it,
https://www.memtest86.com/troubleshooting.htm#channels

Glad to hear new RAM fixed the problem.