Overclocking ram issues (xmp refuses to boot after enabling)
Overclocking ram issues (xmp refuses to boot after enabling)
Hello everyone I'm attempting to increase my RAM's overclock but XMP doesn't start after enabling.
I've verified all the memory on the thaiphoon burner they all match.
I've tried the XMP in 2 seconds it works, but not in 4.
Specs:
Mobo: ROG STRIX Z370-F GAMING
CPU: Intel® Core™ i7-8086K CPU @ 4.00GHz, 4008 Mhz, 6 Core(s), 12 Logical Processor(s)
RAM: Corsair Vengeance RGB PRO 32GB (4x 8GB) DDR4 3200MHz
GCARD: 3080
PSU: 1000w
Bios: 3004
Memory is confirmed for that board by Corsair, meaning compatibility shouldn't be a problem. The build quality and performance of the power supply are solid, so there are no major red flags. I suggest running Memtest on each stick separately, doing four passes each—though it might seem too many, but checking memory issues thoroughly usually requires it. If all pass, try testing them together for four passes. Alternatively, if they fail all tests, isolate each stick individually to identify any faulty one. It’s worth noting that a DIMM that works alone or with another might have hidden issues.
The actual model number of the memory kit remains unclear. It's important to confirm whether all four DIMMs were included in one kit or if you purchased two separate kits with two DIMMs each. Regarding the power supply, the exact "1000w" model is also uncertain without more specific details about the brand and version.
the power supply is a be quiet! 1000W Straight Power 11 80+ Gold Power Supply
I purchased the DIMMS in a single kit
https://imgur.com/a/UaIKMjZ
See: https://imgur.com/a/UaIKMjZ
The validation process for memory on this board is confirmed by Corsair, meaning compatibility shouldn't be a concern. The build quality and performance of power supplies are generally positive, so any concerns are unlikely to stand out. It’s advisable to run Memtest on each stick separately, doing four passes each—though it may seem excessive—but since memory issues often require thorough checking, it’s wise to proceed. If they all pass, try testing them together for four passes. Alternatively, test them together for four passes and if they fail, inspect each stick individually to identify the problematic one. It’s important to recognize that a DIMM that works alone or with another might have internal issues that prevent it from fitting well with specific timings, leading to adjustments that work for some sticks but not others. There are numerous factors at play here, but I hope this clarifies why four DIMM setups can sometimes encounter problems, even if individual sticks function correctly with just one or two installed.
This situation becomes significantly more challenging on HEDT platforms where users often use 6 or 8 DIMM kits simultaneously. A slightly faulty single DIMM can disrupt the entire setup at times.
Memtest86
Go to the Passmark website and download the free USB Memtest86 version. If a bootable USB drive isn’t available, you can use an optical disk version instead.
Prepare a bootable media with the downloaded Memtest86. Then, adjust your BIOS settings to boot from the USB drive containing the tool or the optical disc.
You’re also free to use Memtest86+ since it has been recently updated after years of inactivity. For this guide, stick with the Passmark version, as it remains a reliable option. While I haven’t tested the latest 86+ release directly, using Memtest86 is still a solid choice. You might consider using Memtest86+ as a secondary verification alongside Memtest86, similar to how Windows’ built-in diagnostic or Prime95 can provide additional insights.
Click here to download the Memtest86 USB package
Create a bootable USB Flash drive:
1. Download the Windows MemTest86 USB image.
2. Right-click the file and select "Extract to Here" to place it in your current folder.
3. Launch the included imageUSB tool; choose your connected USB drive to make it bootable. Be aware this will erase all data on that drive.
No memory should fail to pass Memtest86 under its default configuration, which is set automatically at startup or after a CMOS reset (remove the battery for five minutes).
For optimal results, perform four passes of Memtest86, covering all 11 tests with the system in its default settings. This step should be completed before applying XMP profiles. The paid version includes 13 tests, while the free version covers tests 1–10 and test 13. Ensure you download the latest Memtest86 version, as Memtest86+ hasn’t been updated in many years and remains highly effective.
Should any errors appear, it indicates instability in the memory configuration. You might need to slightly increase the DRAM voltage or adjust primary timings. Few secondary or tertiary settings require change, but I can elaborate if you’re refining your memory profiles.
If passing Memtest86 with XMP settings still fails, consider restoring the memory to its default JEDEC SPD (1333/2133mhz, depending on your platform and type). Run Memtest86 again with the standard configuration. If successful, proceed to Prime95 testing.
If it still doesn’t pass, attempt a voltage bump within the safe range for your memory type. Retest after each increment. If it fails again, investigate further—there may be a physical defect in one or more modules. Running Memtest86 on each individual module separately can help pinpoint the faulty unit. Replacing only one module instead of the entire set is recommended to avoid using mismatched memory, which could lead to further complications.
Keep in mind that testing memory at default non-XMP settings is crucial before making any configuration changes. This ensures you distinguish between configuration errors and hardware issues. It’s also wise to re-run Memtest86 after enabling XMP to confirm compatibility with the motherboard’s specifications, particularly if your board isn’t already listed as supported.