one RAM stopped working after upgrading CPU

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KayT3X

KayT3X

Commendable
Oct 5, 2016
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1,510
My RAMs are a pair of Kingston HyperX, and I had no problem with them until recently. I upgraded to AMD FX-8300 CPU, then I tested out with running Battlefield 1. One match went very smooth until at the end where showing results of the match. My computer went froze. I restart my system, and I found out that one of my RAMs is not working properly like one RAM is working properly while other's not. Even I cleaned my rig, applied thermal paste properly, and resetted CMOS, same issue occurs. Then, I tried to boot with one RAM at a time, sadly, one RAM booted successfully, while other RAM failed to boot.

I booted my rig while RAMs are plugged to diagnose. According to Windows Task Manager, memory usage is 4GB and "Hardware Reserved" is 2GB. However, according to HWMonitor and CPU-Z, both RAM are detected. So, I ran Memtest86+, but it tested only one RAM, resulting that no issue has found. After few days, I tested both RAMs on motherboard with Intel i5-4570 3.20GHz, and both RAM are booting properly. I also tested 2 (Samsung 4GB PC3-12800) RAMs on my AMD motherboard, and they also are working properly.

I still haven't figured out why AMD motherboard is not working with one Kingston HyperX anymore. Is AMD motherboard a cause, or the RAM?

I acquire your expertise why this issue happens.

PC Specifications
Motherboard: GA-990XA-UD3 (rev. 1.x) BIOS: F14e
CPU: (Current) AMD FX-8300 Vishera w/ AMD Wraith Cooler
(Before) AMD Phenom II X6 1090T Black Edition w/ CoolerMaster Hyper T4
RAM: Kingston HyperX DDR3-1600 (4GB x 2) CL Timing 9-9-9-27
GPU: ZOTEC GeForce GTX 970 4GB
SSD: Samsung 850 EVO 250GB
HDD: Hitachi 1.5TB (7200rpm) and Western Digital 1TB (7200rpm)
PSU: Antec High Current Gamer Series HCG-750 750W ATX12V v2.3 / EPS12V v2.91 SLI Certified CrossFire Certified 80 PLUS BRONZE
 
Solution
Vic 40
For that speed do those settings look fine.:) With only adjusting the speed you probably were using wrong timings which made things not run well.
Since running fine now do i assume that it will keep on doing that. ;)
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Vic 40

Vic 40

Titan
Ambassador
Oct 22, 2013
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Did you update to that bios yourself before upgrading the cpu? You don't need that Beta bios since the F13 already supports the cpu. Might want to reflash to the older F13.

Can you with one stick look in the bios at the MIT and look for AMP or DOCP to enable,this might set the ram up correctly looking at timings,speed and voltage.After that try adding the second stick.

What speed and timings does the ram work at right now,use cpu-z (freeware) and look under the "memory tab" for that.
 
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KayT3X

KayT3X

Commendable
Oct 5, 2016
9
0
1,510
Yes. I updated BIOS via using @BIOS. I reflashed back to F13 version.

I stuck one RAM to boot, and enabled DOCP by selecting Profile1. Second RAM is now able to boot and to use. Before this, I selected DDR1600 of DOCP, but second RAM did not work.

Right now,
NB Freq 2200MHz; DRAM Freq 800MHz; FSB DRAM 1:4
CL 9 clocks / tRCD 9 clocks / tRP 9 clocks / tRAS 27 clocks / tRC 36 clocks

Currently, it is now working properly. I will keep using same RAMs for a couple of days before I select "Best Answer". I will let you know how they go.
 
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