Same type of memory passed and failed the test. Differences in report.

[ifpi]

Hello

I tested my 4 RAM sticks.
Using: MemTest86 V11.1.
RAM: Goodram, IRP-3600D4V64L17/32GDC, 32 GB, DIMM DDR4, Dual Channel.
The memories are in dual. I tested each dual (2 memory sticks) separately.
One pair of memories (Dual Channel configuration) passes the tests.
The newer pair of memories does not pass the tests.

The memories were tested with the same BIOS version, in the same slots on the motherboard.

In the BIOS, the memory was set to:
XMP 2.0 Profile 1. 3600 17-19-19-39 1.35V

The differences in the report (apart from the difference in test results) are:

1. CPU Clock :
(pass) 3694 MHz [Turbo: 4892.0 MHz]
vs
(fail) 3694 MHz [Turbo: 4863.4 MHz]

2. L1 Cache:
(pass) 24 x 64K (289224 MB/s)
vs
(fail) 24 x 64K (281119 MB/s)

3. L2 Cache:
(pass) 24 x 512K (125303 MB/s)
vs
(fail) 24 x 512K (141751 MB/s)

4. L3 Cache:
(pass) 1 x 65536K (54331 MB/s)
vs
(fail) 1 x 65536K (54267 MB/s)

5. Memory:
(pass) 32703M (49298 MB/s)
vs
(fail) 32703M (49284 MB/s)

6. Vendor Part Info

Question 1
Is there anything I can do to make the memory pass the tests?
Question 2
Or are the memories just bad and should I return them?

---

The report provides various RAM configurations.

e.g.
RAM Configuration: DDR4 3600MT/s / x2 Channel / 18-19-19-39 / 1.200V

JEDEC Profile: 2134MT/s 15-15-15-36 1.2V

XMP Profile 1: 3596MT/s 17-19-19-39 1.35V

SMBIOS Profile: 3600MT/s 1.2V

Lowest memory speed: 3600 MT/s (18-19-19-39)
Highest memory speed: 3600 MT/s (18-19-19-39)

Question 3
In which configuration were the RAMs tested?
Which CAS latency and voltage values were used during testing?




Best regards

[David (PassMark)]

RAM: Goodram, IRP-3600D4V64L17/32GDC

Ironic naming, given the RAM is bad.

Is there anything I can do to make the memory pass the tests?

You didn't post the number or type of errors. Sometimes it is possible to work-around problems by running them at higher voltage, or slower speeds. Normally it is better to replace them.

In which configuration were the RAMs tested?
Which CAS latency and voltage values were used during testing?

MemTest86 uses whatever setting you set in BIOS.
(3600MT/s / x2 Channel / 18-19-19-39 / 1.200V, it seems)

[ifpi]

Thank you for your answer.

In the first post I wrote that in BIOS the memory was set to: XMP 2.0 Profile 1. 3600 17-19-19-39 1.35V
But the "Gear Down Mode" settings were on auto and the BIOS did not change to CL17 and it was CL18.
I changed "Gear Down Mode" to "Disabled". Now 17-19-19-39 is visible in MemTest86.

I did the test again (incomplete). The errors still appeared.

You didn't post the number or type of errors.

Ok. I am attaching the log from the test.

MemTest86 uses whatever setting you set in BIOS. (3600MT/s / x2 Channel / 18-19-19-39 / 1.200V, it seems)

in BIOS the voltage for the memory is set to 1.35V.

[David (PassMark)]

Extract from the log

[MEM ERROR - Data] Test: 6, CPU: 0, Address: 8398892B0, Expected: FFFFFFFF, Actual: FFFFFEFF
[MEM ERROR - Data] Test: 6, CPU: 0, Address: 839889390, Expected: 00000900, Actual: 00000800
[MEM ERROR - Data] Test: 6, CPU: 0, Address: 839889B98, Expected: FFFFFFFF, Actual: FFFFFBFF
[MEM ERROR - Data] Test: 6, CPU: 0, Address: 83988ABE8, Expected: 00000000, Actual: 00000400
[MEM ERROR - Data] Test: 6, CPU: 0, Address: 83988C0C0, Expected: 08000400, Actual: 08000000
[MEM ERROR - Data] Test: 6, CPU: 0, Address: 83988C140, Expected: 20000400, Actual: 20000000
[MEM ERROR - Data] Test: 6, CPU: 0, Address: 83988C200, Expected: 00000400, Actual: 00000000
[MEM ERROR - Data] Test: 6, CPU: 0, Address: 83988C280, Expected: 00000402, Actual: 00000002
[MEM ERROR - Data] Test: 6, CPU: 0, Address: 83988C2C0, Expected: 00000404, Actual: 00000004
[MEM ERROR - Data] Test: 6, CPU: 0, Address: 83988C300, Expected: 00000408, Actual: 00000008
[MEM ERROR - Data] Test: 6, CPU: 0, Address: 83988C318, Expected: FFFFFEF7, Actual: FFFFFFF7​

So mostly a single bit flip at a small range of addresses.
Seems like bad RAM.
You could mess around for days trying to get it stable, but in the end you didn't get what you paid for. Just replace it.

[ifpi]

Thank you for your helpful answer.