GIGABYTE GA-Z170MX-Gaming 5 Huge DPC Latency Spikes, Help!

publicenemy219

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Nov 27, 2008
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Hello,

I recently upgraded my 5 year old PC and put together a new build utilizing the new 1151 chipset and following components:

G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600) Intel Z170 Platform Desktop Memory

Phanteks Enthoo Evolv Gray Aluminum / Steel mATX/ MicroATX Tower

GIGABYTE G1 Gaming GA-Z170MX-Gaming 5 LGA 1151 Intel Z170 HDMI SATA 6Gb/s USB 3.1 USB 3.0 Micro ATX Intel Motherboard

i5 6600k

EVGA Geforce GTX 760 SC ACX (from previous build)

Windows 10 OS 64x

Ever since upgrade, I have noticed the sound to intermittently hum/distort/crack while playing music, streaming videos, and especially gaming. I don't mind the occassional pop, but with gaming, this "DPC Lag" is significantly affecting performance dropping my FPS at times from 120FPS to 15FPS in games such as Dota 2, as well as Witcher 3 ( I have not had enough time to test other games). I've attempted various solutions, including all the useless support Windows 10 moderators have to offer (Run SFC /scannow does not work, nor does disabling audio devices).

In addition, I have disabled all CPU power options and uninstalled Geforce drivers + network drivers only to get a slight decrease in lag as noted in the photos below which were taken after all solutions were attempted. I reinstalled Killer drivers as they were out of control with spikes, and that seemed to relieve some lag from those drivers. However, the directx and geforce drivers are way high and I can't figure out what I need to do. I've also been using the resolution timer application which also assists w/ reducing latency, but not to the point where all issues have been resolved (pictures below are with resolution timer on). I contacted Gigabyte and I doubt they will be of much help as they stated they will contact me on a later date after attempting to recreate the issue. Can someone help me solve the most annoying issue I have faced since windows 7 DPC latency on my ASUS ROG laptop ? I will provide any additional information as requested and I appreciate any assistance.


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publicenemy219

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Nov 27, 2008
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Well I hope someone can address it. Noone from Gigabyte is any help, delaying a solution everytime I call and always insisting on emailing them back and forth for support regarding this. They have been useless and claim they haven't heard about it, yet it's mentioned on Amazon and Newegg.

The only kinda fix that worked slighly was removing the Realtek Audio drivers, and removing killer suite drivers. But that STILL doesnt fix it completely, I still get Huge DPC + ISR execution time when monitoring in Latmon, just less often than before. If I come across anything, I'll post it here. Would appreciate any insight though!