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Can RAM that is not on your mobo QVL list cause a bottleneck?

Sgtkeebler
By Sgtkeebler
in CPUs, Motherboards, and Memory
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Hello everyone,

 

I just replaced my RAM today with sticks that were on my Motherboards QVL list. My old RAM that I had was not on the QVL list had issues. I could only run the old RAM sticks in XMP 1 mode, and if I turned off XMP and tried to boot the computer it would be stuck in an endless cycle of rebooting itself. 
 

The new RAM sticks that are on my Motherboards QVL list I can run with or without XMP just fine and everything runs great. My question is, can RAM that is not on my Motherboards QVL list cause a bottleneck in my computer? 

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non-QVL ram is just non-tested ram, they may or may not work. the mb manufacturer may have a updated QVL per bios updates, some mb's support more ram and profiles with bios updates.  qualified vendors ram has been tested and approved to run all xmp, docp profiles. if you were experiencing problems before you have done the right thing and gone with tested ram for your motherboard. most likely the old ram is fine for a different mb. maybe you could sell or trade it to recoup your losses.

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Good to know that you for the information and putting my mind at ease! I noticed an improvement put this tested memory in compared to the old one, but yeah I am going to try to sell it on eBay to recoup the cost that was a good ideal!

 

 

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bottleneck or not depends on speed, speed depends on frequency and timings

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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