Question After changing PC case fans, games and overall PC performance tanked

[CaptainWiseman]

Hey everyone! never posted before so please be gentle if i missed anything

First time I actually changed a physical hardware in my PC. Iv'e changed my busted case fan and installed a new one, and another one for good measure. After doing that, ive booted the PC, everything looked fine, fans started spinning, but Ive notice when trying to launch a game it take waayyyy longer than it should, and games that ran silky smooth (more than 60fps) barely manage to get to 25.
Ive checked some settings to see if im not suddenly using power savings or what not but to no avail. It does seem that while playing high demanding games, my gpu usage wont go above 30 precent and the cpu goes to 100 precent. So I def did something wrong.

What I do remember doing that might be the culprit, is that when I disconnected the fan that came with my pc, he was connected to the power supply(it did had the useless RGB function and the new ones dont) and to the cooling system (i think) and after disconnecting it, the new fans are connected straight to the motherboard.

Any help will be appreciated! and thanks in advance!

Specs:

Operating System: Windows 10 Pro 64-bit (10.0, Build 19045) (19041.vb_release.191206-1406)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: Z390 GAMING X
BIOS: F8 (type: UEFI)
Processor: Intel(R) Core(TM) i7-9700K CPU @ 3.60GHz (8 CPUs), ~3.6GHz
Memory: 16384MB RAM
Available OS Memory: 16316MB RAM
Page File: 9414MB used, 8181MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 12
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
Miracast: Available, no HDCP
Microsoft Graphics Hybrid: Not Supported
DirectX Database Version: 1.0.8
DxDiag Version: 10.00.19041.4355 64bit Unicode

---------------
Display Devices
---------------
Card name: NVIDIA GeForce RTX 2070 SUPER
Manufacturer: NVIDIA
Chip type: NVIDIA GeForce RTX 2070 SUPER
DAC type: Integrated RAMDAC
Device Type: Full Device (POST)
Device Key: Enum\PCI\VEN_10DE&DEV_1E84&SUBSYS_40011458&REV_A1
Device Status: 0180200A [DN_DRIVER_LOADED|DN_STARTED|DN_DISABLEABLE|DN_NT_ENUMERATOR|DN_NT_DRIVER]
Device Problem Code: No Problem
Driver Problem Code: Unknown
Display Memory: 16146 MB
Dedicated Memory: 7989 MB
Shared Memory: 8157 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
HDR Support: Not Supported
Display Topology: Internal
Display Color Space: DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709
Color Primaries: Red(0.656250,0.334961), Green(0.324219,0.625977), Blue(0.153320,0.064453), White Point(0.312500,0.329102)
Display Luminance: Min Luminance = 0.500000, Max Luminance = 270.000000, MaxFullFrameLuminance = 270.000000
Monitor Name: Generic PnP Monitor
Monitor Model: XG27VQ
Monitor Id: AUS27A6
Native Mode: 1920 x 1080(p) (60.000Hz)

 

[Imperat0r]

Hello.
Changing a fan shouldn't be a problem.
Check to see if you do not remove by mistake cpu fan from motherboard socket.
When your CPU is getting hotter - usually the fan spins up to max to cool it down.
But there is a fail safe there, in case your fan is not working you should have a message from BIOS but if you do not have then CPU will throttle down to protect itself.

 

[CaptainWiseman]

Heyy thanks for the swift and helpful reply!
Tho im not sure exactly what you mean, Im still fairly new at hardware.
When the GPU is only on 30 percent, its the CPU thats being throttled?
Could disconnecting the old fan had done it? Cause it was connected differently, power supply & cooling or cpu im not. Is it possible that fan was being used as a connector and when i removed it i accidently disconnected it?

Thanks in advance!

 

[Imperat0r]

GPU and CPU are not using the same cooling fans.
GPU - in your case a separate video card have at least one cooler+ fan on it.
On the other hand the CPU have a single cooler + fan. If you removed by mistake the CPU fan from motherboard and put it in another socket then for sure you do not have the proper cooling for it.
I believe you need to make some pictures with your motherboard , where we can see clearly where you inserted which connector.
Ahh and i forgot to mention : check if the CPU fan wires does not enter in the fan blades to block it from spinning.