All of a sudden All my games are lagging :(

Hey, ive had this new PC for about 3 months now and it ran great till now but all of a sudden all my games are lagging that worked a few days ago, any ideas why its doing this ? thanks in advance :na:
Time of this report: 7/2/2012, 00:35:27
Machine name: MATT-PC
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.120503-2030)
Language: English (Regional Setting: English)
System Manufacturer: Alienware
System Model: Alienware X51
BIOS: BIOS Date: 12/21/11 14:46:17 Ver: 04.06.05
Processor: Intel(R) Core(TM) i5-2320 CPU @ 3.00GHz (4 CPUs), ~3.0GHz
Memory: 8192MB RAM
Available OS Memory: 8086MB RAM
Page File: 3421MB used, 12750MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode

DxDiag Notes
Display Tab 1: No problems found.
Display Tab 2: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Input Tab: No problems found.

DirectX Debug Levels
Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

Display Devices
Card name: NVIDIA GeForce GT 545
Manufacturer: NVIDIA
Chip type: GeForce GT 545
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_1241&SUBSYS_091D10DE&REV_A1
Display Memory: 4050 MB
Dedicated Memory: 978 MB
Shared Memory: 3072 MB
Current Mode: 1920 x 1200 (32 bit) (59Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: NVD SIM DISP
Monitor Id: NVD0000
Native Mode: 1920 x 1200(p) (59.950Hz)
Output Type: HD15
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 8.17.0013.0142 (English)
Driver Version:
DDI Version: 11
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 5/15/2012 04:48:00, 18044224 bytes
WHQL Logo'd: Yes
WHQL Date Stamp:
7 answers Last reply
More about sudden games lagging
  1. do this small and simple first check your cpu and gpu temps and the fans..if the gpu fan not working right and the card gets to hot the gpu got to throttle back.
  2. also do you have A/C? what's your ambient? just had a major heatwave here that would have made anything throttle
  3. Wow, just got on to open a thread about this and I see this! So basically, same problem and I just started having it today 1 hour ago. Any game i run starts throttling my GTX 560 at 99% and lags, i checked the timings and everything is correct because i thought i might have set the clocks down which is what i do when im not playing games. Any ideas? Should i just open a new thread? Thanks
  4. check your temp as the poster above said....
    check for memory usage / free...
    check for background program/bloatware/malware that running...

    but it likely temp problems..
    high temp will throttle your system, using cooling pads can help...

    If the temp are fine, mem is enough, no bloatware/malware and your gpu/cpu usage is nearly 90% or above than it simply means your machine are not strong enough.... lower the detail / upgrade your machine....
  5. Update your drivers if you haven't. My GTX 480 started throttling down to 205 mhz even when i didn't play any games. I think i was using 301.24 and updating to 301.42 solved my problems.
  6. Simplest Fix for me, I simply restarted because i thought my GPU was going down the drain. The restart fixed whatever caused it in the first place. ALL TEMPS were fine, clocks were in their place, and i played the games 2 hours ago on highest so it wasn't bottle necking. And i had no programs running in the background, i don't know and may never know what it was but its gone. Anyway, so try restarting and see if it continues. Good Luck!
  7. My gpu is at 109F, i ran a malware scan and it removed 9 infected files but it didnt seem to help :(
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