computer spikes every 10 seconds

hi, my dad recently bought me a computer from a guy and he custom built it. the problem is is that when i play a game called cs, it will be fine for maybe 10 seconds, and do what seems like a quick laggspike, but its not cause i checked ping, and it does it alot, it doesnt stop. and it also does it for my windows. as im typing this its like typeing normal and then i will keep typing and it will stop typing and like lag sorta, and then come back to the typeing, it doesnt miss the keys, it just kind seems like a little computer lag spike. any ideas on whats happening and what i should do to fix it?
thanks

specs:
asus P4B-533-E Motherboard
Intel P 4 2.26Ghz CPU
512 Meg 266 Mhz DDr sdram Memory
Seagate 160 GiG Hard drive New 5 year warranty
NVIDIA GeForce FX 5500 Graphics 128 Meg ram

more info:

Processor Information:
Vendor: GenuineIntel
Speed: 2289 Mhz
1 logical processor
1 physical processor
HyperThreading: Unsupported
RDTSC: Supported
CMOV: Supported
FCMOV: Supported
SSE: Supported
SSE2: Supported
3DNOW: Unsupported

Network Information:
Network Speed: DSL > 256k
IP Address: 192.168.0.XXX

Windows Version:
XP Service Pack 2 (Build 2600) (32 bit)
NTFS: Supported

Video Card:
Driver: NVIDIA GeForce FX 5500
DirectX Driver Name: nv4_disp.dll
Driver Version: 6.14.10.8421
DirectX Driver Version: 6.14.10.8421
Driver Date: 9 Mar 2006
Desktop Color Depth: 32 bits per pixel
Monitor Refresh Rate: 75 Hz
DirectX Card: NVIDIA GeForce FX 5500
VendorID: 0x10de
DeviceID: 0x326
Number of Monitors: 1
Number of Video Cards: 1
No SLI or Crossfire Detected
Primary Display Resolution: 1024 x 768
Desktop Resolution: 1024 x 768
Primary Display Size: 12.99" x 9.72" (16.22" diag)
33.0cm x 24.7cm (41.2cm diag)
Primary Display Type: CRT
Primary Bus: AGP 4x
Primary AGP GART: 64 MB
Primary VRAM: 128 MB
Primary Monitor Vendor: Envision
Primary Monitor Model: Envision EN7450
Supported MSAA Modes: 2x 4x



Game Display Settings
GoldSrc Game Resolution: 800 x 600 (Fullscreen)
GoldSrc Game Bit Depth: 32


Sound card:
Audio device: C-Media Wave Device

Memory:
RAM: 511 Mb

Miscellaneous:
UI Language: English
Media Type: CD-Rom
Total Hard Disk Space Available: 152617 Mb
Largest Free Hard Disk Block: 145439 Mb

Look at your Task Manager. Right click any empty area of the Taskbar and then click Task Manager.

Open the Performance tab. See how the CPU usage goes over the course of a few minutes.

You can also go to the Processes tab and see what application might be spiking.

You can also check you logs:

Also: look in your Event viewer: rt. click My Computer then click Manage then Event Viewer.
Or: Administrative Tools/Event Viewer or Start/Run/ eventvwr
Open the system as well as the application tabs & look for X errors. Click error line for details.
Post back the source & event id & Description especially of errors that seem to coincide with this issue.
Also check the Information lines that might coincide with this issue.

How to view and manage event logs in Event Viewer in Windows XP

Also view your Error Log via:

[1] Start Menu
[2] Help and Support
[3] Pick a Task
[4] Tools
[5] Advanced System Information
[6] View the Error Log

Look for any synchronous entries.

in the task manager, i click the proccesses tab and nothing seems to be spiking my CPU, but when i click on the performance tab, it says that there was a almost 100% usage at one point, and little spikes that go up to 30 or so and then drop right back down. and for the error logs, i get alot of them, but not since april 4th for the 2nd way you suggested. and the other1st way you suggested i got these:



there was alot more, but those were the ones that keep repeating

Those Info lists are basically normal startup behavior. They are Services being opened.

Having reviewed your motherboard manual:

http://dlsvr03.asus.com/pub/ASUS/mb/...9_p4b533-e.pdf

And your Graphics Card:

http://www.nvidia.com/page/fx_5200.html

I am seeing a possible conflict. Your board supports AGP 4X PRO whereas that card is 8X with no mention of 8X/4X. This is a possible conflict that could result in your performance problem. I would suggest verifying this with the computer builder.

well how can i fix it? im not all good with computers, thats why i need the help.

and what are you suggesting? i dunno if i cans till get a hold of him

If your motherboard does not fully support the graphics card the only thing you can do is get a card that it does support.

If this is a newly built computer it should have a warranty and the builder should be responsible. Your dad must know who he bought it from?

If this problem has always existed it even more suggest a hardware conflict.

Did this computer ever work OK? Or has this always been a problem?

well he built it and since i plugged it in yesterday its done this so yes, and your link said 5200
but the card is a 5500 FX GeForce AGP OC

That link covered:

Available Mainstream Models:
GeForce FX 5200 Ultra
GeForce FX 5200
GeForce FX 5500
GeForce PCX 5300

oh okay, well i called the guy who made the comuter, and he said it didnt do that with him, and he wantsto put a new videocard in it, an ATI he said he only put in a nvidia because thats what gamers use and i told him i would be using it for gaming.

and is there anyway you can tell me what cards are fully suported? and also, if this isnt the problem, what else could it be?