Nevermind

This post has been edited by owikh84: Apr 5 2017, 07:26 AM

Ryzen doesn't like odd timing of CAS (CL15, C17 etc). You won't be able to POST with odd CAS unless GearDownMode is manually disabled and command rate is set to 2T (2N).

For starters, I'd suggest loading the XMP profile, then manually insert the primary timings to 16-17-17-17-35 as well as DRAM voltage at 1.35v. Let the SOC (IMC voltage) at auto. If POST is successful, proceed for stability testing using TM5 v0.12, this should take around 20-30 minutes to complete.

By looking at the specs, your Vengeance LPX should be based around low-grade B-die chips and A0 PCB layout (latest A2 is the best). Hence, 3200 CL14-14-14-34-1T @ 1.35v might not be able to work with your sticks unless your IMC is strong or your mobo has a good BIOS.

DRAM Calculator for Ryzen v1.5.1: https://www.techpowerup.com/download/ryzen-dram-calculator/
TM5 v0.12: https://www.overclock.net/forum/27577522-post2594.html

Use HWiNFO64 software to monitor temps (tcdie) and voltage (SIV12 sensor).

Use DRAM Calculator to get the right memory timings. Use Samsung B-die V2, X470/B450, speed 3000 safe preset.



This post has been edited by owikh84: May 20 2019, 08:10 PM

I can't see your timing checker anymore now so hard to give further advice.
I don't think it's a bad RAM, but you can try your luck sending for RMA.
RAM clocking requires lots of patience and time, you need to spend more time playing with memory timings and voltages. It's all about trial and error.
Ryzen is very picky on the RAM, and it is harder to get the RAM working correctly on some low/mid-end boards.
Based on my experience, RAM is easy to work with ROG X470 and B450 mobos even with auto XMP timings.
As a comparison, low-end boards such as ASUS Prime B450-K are more difficult to stabilize the RAM. Took me 2 days to find the right settings for 3200 CL14 whilst the ROG could achieve stability almost instantly with minor tweaking.

This post has been edited by owikh84: May 21 2019, 08:00 AM

Guess it's time to buy ROG Strix B450-I mobo from me 😜

I think most probably because of the high RAM latency being ~70ns vs 40ns on Intel side.

Asus Crosshair VIII Hero Wi-Fi: RM2039
Asus ROG Strix X570-F Gaming: RM1439
Asus TUF Gaming X570 Plus Wi-Fi: RM1109



This post has been edited by owikh84: Jul 8 2019, 09:28 PM

Good deal?



Link: https://shopee.com.my/product/18799831/2424243081?smtt=0.0.9

Source: http://build.idealtech.com.my/builder/index.php

This post has been edited by owikh84: Oct 24 2020, 09:16 AM

5600X + B550-i

https://shopee.com.my/GIGABYTE-B550I-AORUS-...9831.7739203085

Most MSI and ASUS mobos come with BIOS Flash button (located at the backpanel) to flash BIOS without CPU.





https://download.msi.com/archive/mnu_exe/mb/E7C91v2.2.pdf
https://www.msi.com/Motherboard/MAG-B550-TO...K/Specification

Both have the same amount of SATA & PCIe slots but Tomahawk has more features:

* 2x LAN 2.5G + 1G
* 2x M.2 heatsinks
* Better audio ALC1200 vs ALC892/ALC897
* Support higher RAM frequency

New X570 boards coming soon guys...