Massive FPS drop and CPU usage drop while recording

Isaiah Wright

Reputable
Feb 1, 2015
16
0
4,510
1 down vote favorite So ive recorded a few minecraft videos using bandicam before without this problem, but yesterday i went to record it was all going good until out of nowhere my Fps went from like 60-100 to 0-2 for like half a second. I though it might be because of me changing my screen resolution from 1360 x 1024@60hz to 1440 x 900@75hz. So i switched it back it didnt change anything i tried recording using ultra high 60fps settings again it records fine then out of no where fps goes to 0 usually i have music playing over the in-game audio i turned that off. I even tried the low-end settings and i still got Fps lag although it was smaller it was still there. I switch the drive that it outputs on also to no avail. I dont have a bad setup its pretty new and shouldnt have any problems running this
Dell Optiplex 780
Windows 7 Pro 64-Bit
Intel Core 2 Duo@3.00Ghz
8 GB Samsung PCI-8500F(533Mhz) RAM
ATI Radeon HD 4670 PCI-Express x16 graphics card 1GB memory
1 TB Western Digital HDD
320 GB Samsung HM321HI HDD
170 GB Seagate Barracuda HDD
Also when i playback these recordings they skip sometimes and they speed up almost like im watching them at increased speeds. if need be ill upload one of them so you can see what im talking about. While i was recording i had my performance monitor open at the same time and when my FPS just eats shit my CPU usage goes from like 80 70%- 1-3% usage its a huge drop a really huge drop really fast like half a second and its a 3% usage and my fps is at 1 and then it goes back up. As far as i can tell the TMP on my CPU is about 40-50 C during this and my graphics card is like 55-69C (67C being its max) but it doesnt seem to go over 55C while recording in fact i wasnt even recording when it hit 69C.