PSU and micro-stutters in games.

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drake_midway

Prominent
Nov 25, 2017
5
0
510
Hello everyone!
When I just assembled my new PC, everything was fine.
But after some weeks, I noticed that every game is suddenly micro-stuttering. Also these stutters depend on settings of game (if settings are higher - more micro stuters, if lower - less ).
When I started to find out whats going on, I noticed, that my Power Supply gives weird sound. I recorded a sound for you to check it out. ( Listen this "zzzzz" sound, not the airflow ;d )

https://vocaroo.com/i/s00hVpywt4wO

Also, when my computer is more loaded, this "zzzzz" sound become high frequented.

About my CPU and GPU temps - they are fine.

Really want to know what should I do.

Thanks :)

 
Solution
logainofhades
That particular PSU has never been considered a good one. I would start with getting a quality Seasonic, or Evga G2/G3 based PSU for starters. Even the Corsair TXM series are much better than that particular CX.
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Lutfij

Lutfij

Titan
Moderator
Oct 7, 2009
54,067
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When posting a thread of troubleshooting nature, it's customary to include your full system's specs like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

Make sure you're on the latest BIOS update for your platform and that you're on the latest GPU drivers for your GPU. For the latter, you're going to need to uninstall your existing drivers and reinstall them after downloading them from your manufacturer's support site.
 
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drake_midway

Prominent
Nov 25, 2017
5
0
510




PSU: Corsair Builder CX750M ATX2.3 80+ 750W
CPU: Intel Core i7 7700k 4.2Ghz
GPU: GeForce GTX 1060 6GB
SSD: Samsung EVO 850 250GB
HDD: Western digital CAVIAR Blue 1TB 7200RPM
MOBO: MSI Z270 GAMING PRO CARBON
OS: Windows 10 Pro
RAM: Kingston HyperX 16GB 2400Mhz
 
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simba223

Mar 8, 2019
2
0
10
I had to reply even tho its old for others to see if someone looks things up. PSU CAN cause stutter, im talking from experience. There can be micro voltage drops as gpu and cpu demands sudden bursts of current, not severe enough to cause frequent shut downs but enough cause overall slow down and stutter as you turn around in games and so on. This also can cause data corruption on HDD, that occur more often if you game-more voltage fluctuations, even that alone i imagine could cause poor performance. These fluctuations can be so quick that voltage meter wont notice it. One way to check for it is to plug in some 12 V led, and you will likely see brief very quick flickering with corner of your eyes when gaming or preforming demanding tasks, other way to check it, well, oscilloscope. Popular claim that there are only two states of PSU, working- not working is TOTALLY wrong, in between state can happen but its on rare side and more on failed off brand psu's
 
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