Memtest86 fail help

Hello,

i have ran memtest86 3 times 4 passes. On the first run i had two fails as the one bellow. On the second none, on the third run again. Does it mean that RAM is failing or should i check some other stuff beforehand?

Summary

Report Date	2020-11-02 17:16:46
Generated by	MemTest86 V8.4 Free (64-bit)
Result	FAIL

System Information

EFI Specifications	2.70
System
Manufacturer	Gigabyte Technology Co., Ltd.
Product Name	B450 AORUS ELITE
Version	Default string
Serial Number	Default string
BIOS
Vendor	American Megatrends Inc.
Version	F52
Release Date	07/29/2020
Baseboard
Manufacturer	Gigabyte Technology Co., Ltd.
Product Name	B450 AORUS ELITE
Version	x.x
Serial Number	Default string
CPU Type	AMD Ryzen 5 2600 Six-Core
CPU Clock	3428 MHz [Turbo: 3428.3 MHz]
# Logical Processors	12
L1 Cache	12 x 96K (76724 MB/s)
L2 Cache	12 x 512K (58925 MB/s)
L3 Cache	1 x 16384K (26703 MB/s)
Memory	16350M (14476 MB/s)
DIMM Slot #0	8GB DDR4 XMP PC4-19200
	Golden Empire / CL16-16-16 D4-2400
	16-16-16-36 / 2400 MHz / 1.200V
DIMM Slot #1	8GB DDR4 XMP PC4-19200
	Golden Empire / CL16-16-16 D4-2400
	16-16-16-36 / 2400 MHz / 1.200V

Result summary

Test Start Time	2020-11-02 13:12:41
Elapsed Time	3:42:01
Memory Range Tested	0x0 - 41F380000 (16883MB)
CPU Selection Mode	Parallel (All CPUs)
ECC Polling	Enabled
# Tests Passed	47/48 (97%)

Lowest Error Address	0x7AF9A3CC (1967MB)
Highest Error Address	0x7AF9A3CC (1967MB)
Bits in Error Mask	0000000040000000
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]	3/4 (75%)	1
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]	4/4 (100%)	0

Last 10 Errors

2020-11-02 15:04:39 - [Data Error] Test: 7, CPU: 4, Address: 7AF9A3CC, Expected: BFFFFFFF, Actual: FFFFFFFF