CS:S Lag Spikes / Frame Freeze

[Abdul]

Ok basically every now and then I keep getting lag spikes / frame freezes for a couple of seconds then its ok; and this happens constantly every few minutes at random times (sometimes during gun fire, sometimes even when not doing anything).

It happens for DOD:S and CS:S during multiplayer (even on servers with a couple of people only). But when I'm playing single player, everything is ok.

Specification
Running Windows 7 on
Intel(R) Celeron(R) CPU E3300 @ 2.50GHz (2 CPU's)
Memory: 4GB RAM (it was 2GB but I upgraded and it still happens)
ATI Radeon X1950 Series

CS:S is running on this autoexe.cfg (Kaizen's CFG)

// Client Commands
// ***********************************************
//
cl_show_splashes "0"			// 		Disables water splashes
cl_phys_props_enable "1" 		// default 1; 	Must be enabled to be CAL-Legit
cl_phys_props_max "50" 			// default 300; 50 is legal CAL value
cl_ragdoll_physics_enable "0"		// default 1;
cl_ejectbrass "0" 			// default 1;
cl_show_splashes "0"
cl_forcepreload "1"

// Lighting Settings
// ***********************************************
//
r_dynamic "0"				// default 1; 	Disables dynamic shadows
r_occlusion "0" 			// default 1;
r_lightinterp "0"  			// default 5;
r_shadowmaxrendered "10" 		// default 32;	Only 10 proper shadows will be rendered, rest will be a blur
r_PhysPropStaticLighting "0" 		// default 1;

// CAL Legal Settings
r_ambientfraction "0.1"  		// default 0.1;
r_avglight "1"
r_avglightmap "0"
r_lightaverage "1"  			// default 1;
r_lightcache_numambientsamples "162"
r_lightstyle "-1"
r_worldlights "2"
r_worldlightmin "0.0002"
r_maxdlights "32"
r_radiosity "4"
// End CAL Legal Settings


// Materials
// ***********************************************
//


mat_clipz "0"  				// default 0;	If rendering problems occrur, set back to 0
mat_hdr_enabled "0" 			// default 1;
mat_hdr_level "0"
mat_vsync "0"
mat_wateroverlaysize "8"        	// default 128;
mat_bloomscale "0"			// Determines amount of HDR
mat_specular "0"			// Disable specular on models
mat_forceaniso "0"
mat_bumpmap "0"
mat_colorcorrection "0" 		//		If enabled fps takes a major hit
mat_shadowstate "0" 			// default 1;
mat_forcehardwaresync "0" 		// default 0; 	Huge hit on performance if enabled
mat_monitorgamma "1.6" 			//		Max monitor brightness
mat_disable_bloom "1" 			// default 0;
mat_disable_fancy_blending "1"  	// default 0;
mat_disable_lightwarp "1"  		// default 0;
mat_disable_ps_patch "1"  		// default 0;
mat_fastnobump "1"  			// default 0;
mat_filterlightmaps "1"  		// default 1;
mat_mipmaptextures "1" 			// default 1;
mat_trilinear "1" 			// default 1;

// CAL Legal Settings
mat_bumpbasis "0"
mat_surfaceid "0"
mat_surfacemat "0"
mat_hdroverbrightrange "16"
mat_hdr_tonemapscale "1"
mat_hdr_manual_tonemap_rate "1.0"
mat_bloomamount_rate "0.05f"
mat_force_bloom "0"
mat_leafvis "0"
mat_yuv "0"
mat_softwarelighting "0"
mat_softwareskin "0"
mat_picmip "0"  			// default 0;
mat_loadtextures "1"
// End CAL Legal Settings


// Sound Options
// ***********************************************
//
dsp_enhance_stereo "0" 			// default 0;
snd_async_fullyasync "0"	 	// default 0;
soundscape_fadetime "9999"  		// default 3;
soundscape_flush

// Enable Cheats (relax, this enables some CVARS to load, we disable it at the end)
// *********************************************************
//
sv_cheats "1"

// Personal Preference (modify as desired)
// ***********************************************
//
//sensitivity "10"
budget_show_history "0"         	// default 1;	Disables history graph.
cl_downloadfilter "nosounds" 		//		Disables downloading of annoying SFX
con_enable "1"
cl_allowdownload "1"
cl_forcepreload "0"

crosshair "1"
cl_crosshairscale "3"
cl_crosshairsize "3"
cl_crosshairalpha "999"
cl_crosshaircolor "4"  			//		Set color to light blue (very visible)
cl_crosshairusealpha 0
cl_dynamiccrosshair "1"
cl_scalecrosshair "1"
cl_crosshairalpha "999"
cl_crosshairusealpha "1"
cl_observercrosshair "1"

cl_radaralpha "255" 			// 		Maximum radar brightness
cl_radartype "1" 			// 		Enables solid radar
cl_locationalpha "150"
cl_radar_locked "0"

cl_autohelp "0" 			// default 1;
cl_autowepswitch "0" 			// default 1;

cl_resend "1.5" 			// default 6;
cl_c4dynamiclight "1"  			//		Makes the bomb flash brighter to make it easier to see

cl_buy_favorite_quiet "0"
cl_buy_favorite_nowarn "0"
cl_righthand "1"

fps_max "120"

net_graphheight "65" 			// default 60;	Raised height for 800x600

hud_centerid "1"
hud_fastswitch "0"  			// default 0; 	Enables quick weapon switching

sv_forcepreload "1"  			// default 0; 	Loadtime will inc, on-fly rendering dec. Fps boost

jpeg_quality "100"

showhitlocation "1"  			// default 0;


// Violence settings (increases blood to help you see hits better)
// ***********************************************
//
violence_ablood "1"
violence_agibs "1"
violence_hblood "1"
violence_hgibs "1"


// Ropes
// ***********************************************
//
rope_smooth_maxalphawidth "0"
rope_smooth_maxalpha "0"
rope_smooth_enlarge "0"
rope_wind_dist "0"
rope_subdiv "0"
rope_smooth_minwidth "0"
rope_smooth_minalpha "0"
rope_averagelight "0"
rope_smooth "0"
rope_shake "0"
rope_collide "0"
rope_rendersolid "1"  			// default 1;


// Water Tweaks
// ***********************************************
//
r_waterforceexpensive "0"       	// default 1; 	Disables high-quality water.
r_waterdrawreflection "1"  		// default 1;
r_waterdrawrefraction "0"  		// default 1;
r_updaterefracttexture "0" 		// default 1;

// Netcode Tweaks
// ***********************************************
//
cl_updaterate "101"
cl_cmdrate "101"
rate "30000"
cl_smooth "0" 				// default 1; 	Causes stuttering effect, tries to fix prediction errors.
cl_smoothtime "0.01" 			// default 0.1;
cl_rate "20000"


// Player Model Tweaks
// ***********************************************
//
// CAL Legal Settings
r_modellodscale "1.0"  			// default 1;
r_lod "2" 				// default -1;
r_rootlod "2"  				// default 0;
// End CAL Legal Settings

r_drawmodeldecals "0"          	 	// default 1;	Disables decals on models
r_eyemove "0"
r_teeth "0"
r_eyesize "0"
r_eyeshift_z "0"
r_eyeshift_y "0"
r_eyeshift_x "0"
r_eyegloss "0"
r_eyeglintlodpixels "0"			// default 20;	Detail on eyes


// Detail Commands
// ***********************************************
//
mp_decals "25"				// default 200;
r_decals "75" 				// default 2048;
r_drawflecks "0" 	        	// default 1;	Disables bullet impacts
r_3dsky "0" 				// default 1;
r_renderoverlayfragment "0"  		// default 1;
r_dopixelvisibility "1"  		// default 1;
r_flex "0"  				// default 1;

// Disable cheats (to disable you from taking advantage!)
// ***********************************************
//
sv_cheats "0"

Still happens with or without this CFG.

What can be causing this?

 

[eurocracy]

It could be your connection but probably because of the ancient X1950. If it's and AGP card I'd recommend a radeon 4650 AGP, if it's PCI-e I'd recommend a Radeon 5450.