Aida32 says i have a 4x speed but the site
http://h20015.www2.hp.com/hub_search/document.jhtml?lc=en&docName=c00026686

Of my pc specs
says my speed is 8x. My card is only geforce 4 mx 64mb and i was going to change but needed to be sure i already took out the case but i cant find the number can find the slot. Aida32 doesnt know that my motherboard is asus the site says so too but i already checked and its asus but ill check again.

Your PC has AGP 4x on-board graphics. You can put in any AGP 8x (or less) graphics card in the (brown) AGP-slot. Look in your manual if and how the on-board graphics can be disabled either on the MoBo or in the BIOS.

Looked in the case and found 8x1 great but pci-express.no.

But im gonna get this is it good?
PRODUCT TECHNICAL SPECIFICATIONS

Fan-cooled ATX Size power supply designed for personal computer or industrial applications.
Fan better cooling and quieter operation that assure long product life.
Pentium 4 / AMD Compatible
It delivers the highest reliability and performance.
1 x 12" Mainboard Cable
4 X 12"/18" cables 4pin connector for hard drive/CDROM/DVD
2 x 24" 4pin connector for floppy/zip drive
6FT power cable
1 Year Limited Warranty
Orange - +3.3V 28A
Red - +5V 35A
White - -5V 0.5A
Yellow - +12V 15A
Blue - -12V 0.8A
Purple - +5V Standby 2.0A
Black - COM - Return
Green - PS-On - Remote
Grey - PW-OK - P.G.
400W Total Power On +3.3V & +5V is 180W Max
Dimension
3.5" X 5.9" X 5.5" - H/W/L

Please stick to one subject (here of graphics cards).
Now you are talking about a powersupply. Without the brand-name and type it is difficult to judge, even if the output (400W) looks adequate. What do you need it for?