|The CoolerMaster PS probably has at least TWO, or more, +12v current ratings - if it does, add them together !|
If this system has all new components, your abysmal frame rates in MFS 10 are far less than they should be, even for a 8400 GS !
XP doesn't have the drivers built in for most things that first came out after XP was first released, circa 2001, and it doesn't have some of the drivers built in for things made before that.
Whenever you load Windows from a regular Windows CD (or DVD) from scratch, after Setup is finished you must load the drivers for the mboard, particularly the main chipset drivers, in order for Windows to have the proper drivers for and information about your mboard hardware, including it's AGP or PCI-E, ACPI, USB 2.0 if it has it, and hard drive controller support. If you have a generic system and have the CD that came with the mboard, all the necessary drivers are on it. If you load drivers from the web, brand name system builders and mboard makers often DO NOT have the main chipset drivers listed in the downloads for your model - in that case you must go to the maker of the main chipset's web site, get the drivers, and load them.
Did you load the main chipset drivers ?
If you didn't, your hard drives and optical drives are probably NOT running as fast as they should !
Look at the setting for Primary Video or Intialize Video First or similar in the bios Setup
If your 8400 GS is a PCI-E X 16 card, that should be set to PCI-E or similar; if it's a PCI card, that should be set to PCI .
If that is set to PCI and the card is a PCI-E X16 card, the software for the card in Windows will NOT be able to use the enhanced PCI-E features of the card, and the performance of the card will be poor in comparison to when that setting is set to PCI-E or similar.
Did you install your video and sound "drivers" properly ?
If you didn't, the improper installation of one or both of those can slow down the performance of your computer considerably !
Sound and video "drivers" always have associated files that must be installed properly along with the actual drivers. If you install only the actual drivers, it's likely the device will NOT work properly.
Unless the instructions for installing a device tell you otherwise....
(this ALWAYS applies to video and sound adapters )
You DO NOT install drivers for a device while booting into Windows, if the software for the device has not been installed yet - when Windows detects a generic device or New Hardware while booting, you allow it to search for drivers, it doesn't find any, and it wants you to show it the location of the drivers - CANCEL that, continue on to the desktop, and install the software for the device using the proper installation from a CD or the proper installation file that you downloaded from the web.
The same applies no matter when Windows finds New Hardware !
If you DID install drivers that way,
(The following also applies if you want to un-install previous software, or re-install the same software)
- for video "drivers"....
- go to Control Panel - Classic View - Add/Remove Programs and Un-install the software you installed, reboot, DO NOT install drivers while booting, let the desktop screen fully load.
Install the video software properly by running the proper download you got from the web, or if you have the CD that came with the video card that's in a slot, or if you have the CD that came with the brand name computer that has the Drivers on it, run the video software installation from the installation program on that.
for sound adapter drivers...
- go to Control Panel - Classic View - Add/Remove Programs and Un-install the software you installed, reboot, DO NOT install drivers while booting.
- go to Device Manager.
(e.g. RIGHT click on My Computer - Properties - Hardware - Device Manager)
If the sound adapter is still listed, RIGHT click on it and Un-install it.
If that was there, and you un-installed it, Reboot at least once.
DO NOT install drivers while booting.
Install the sound software properly by running the proper download you got from the web, or if you have the CD that came with the sound card, or if you have the CD that came with the brand name computer that has the Drivers on it, run the sound software installation from the installation program on that.