FPS drops/stutters

[tobiasbr]

Hello, I've been experiencing a very weird and frustrating issue.

I've been having FPS drops and stuttering in all games, it usually occurs when something inexpected happens in the game, something that hadn't been previously loaded, for example a random rare mob appears in an area or a new player enters it and the game has to load all necessary info, then the FPS drops to or close to 0 and frame time latency goes really high. Because of that I thought this was HDD related so I transferred all the games in an external HD but the problem persists. I ran all possible stability tests, gpu/cpu/mem/hdd tests. All my drivers are up to date and I have tried uninstalling all antivirus/antimalware and firewall softwares, killing all unnecessary processes before running the games but the problem was still there.

I already tried so many things with no luck so far. I just ran Windows Performance Recorder but I can't understand it much to get to the root of this problem, although I noticed that when those FPS drops/stutters occur I can see variations on the behavior of the CPU idle state Type: Target, it drops for some reason. Could this be power related even though my PSU is strong (850W)? I've already disabled all power saving features from the MOBO and set windows performance to high. Could someone help me?

 

[tobiasbr]

Ok, so here are some of my computer specs


Computer Type ACPI x64-based PC
Operating System Microsoft Windows 7 Ultimate Service Pack 1
DirectX DirectX 11.0

Motherboard:
CPU AMD Phenom II X6 Black Edition 1090T, 3200 MHz (16 x 200)
Motherboard Asus M4A87TD Evo (3 PCI, 1 PCI-E x1, 2 PCI-E x16, 4 DDR3 DIMM, Audio, Gigabit LAN, IEEE-1394)
Motherboard Chipset AMD 870, AMD K10

PSU: 850W - seventeam (forgot specs)

RAM Memory 8192 MB (DDR3-1333 DDR3 SDRAM)

DIMM1: Kingston 2 GB DDR3-1333 DDR3 SDRAM (9-9-9-24 @ 666 MHz) (8-8-8-22 @ 609 MHz) (7-7-7-20 @ 533 MHz) (6-6-6-17 @ 457 MHz)
DIMM2: Kingston 2 GB DDR3-1333 DDR3 SDRAM (9-9-9-24 @ 666 MHz) (8-8-8-22 @ 609 MHz) (7-7-7-20 @ 533 MHz) (6-6-6-17 @ 457 MHz)
DIMM3: Kingston 2 GB DDR3-1333 DDR3 SDRAM (9-9-9-24 @ 666 MHz) (8-8-8-22 @ 609 MHz) (7-7-7-20 @ 533 MHz) (6-6-6-17 @ 457 MHz)
DIMM4: Kingston 2 GB DDR3-1333 DDR3 SDRAM (9-9-9-24 @ 666 MHz) (8-8-8-22 @ 609 MHz) (7-7-7-20 @ 533 MHz) (6-6-6-17 @ 457 MHz)


Display:
Video Adapter AMD Radeon HD 6800 Series (1 GB)
3D Accelerator AMD Radeon HD 6870 (Barts)
Monitor LG E2240 (Analog) [22" LCD]

Multimedia:
Audio Adapter VIA VT1818S @ ATI SB800 - High Definition Audio Controller

Storage:
IDE Controller AMD SATA Controller
Storage Controller JMicron JMB36X Controller
Disk Drive WDC WD50 00AAKS-00V1A0 SATA Disk Device (500 GB, 7200 RPM, SATA-II)
SMART Hard Disk Status OK

Input:
Keyboard Microsoft Wired Keyboard 400 (Mouse and Keyboard Center)
Mouse Microsoft USB Basic Optical Mouse (Mouse and Keyboard Center)

Network Adapter Realtek PCIe GBE Family Controller

Peripherals:
USB1 Controller ATI SB800 - OHCI USB Controller
USB1 Controller ATI SB800 - OHCI USB Controller
USB1 Controller ATI SB800 - OHCI USB Controller
USB1 Controller ATI SB800 - OHCI USB Controller
USB2 Controller ATI SB800 - EHCI USB 2.0 Controller
USB2 Controller ATI SB800 - EHCI USB 2.0 Controller
USB2 Controller ATI SB800 - EHCI USB 2.0 Controller
USB3 Controller NEC uPD720200F1 USB 3.0 Host Controller
USB Device Microsoft Hardware USB Mouse
USB Device USB Input Device
USB Device USB Mass Storage Device

DMI:
DMI BIOS Vendor American Megatrends Inc.
DMI BIOS Version 2001
BIOS Type AMI (03/08/11)