I have a HP Slimline computer that has recently been having problems and thought it was the monitor but I have confirmed that it is not the monitor and is something within the computer. I think it is the onboard video that has gone bad because the monitor now says something along the lines of "Analog Power Saving Mode" on the monitor when the computer boots up. Would this be the video card, if not what do you suspect it is? I am going to buy a new graphics card for it (low profile card around $45 or so nothing powerful whatsoever), but was wondering if the power SUPPLY can handle an independent graphics card. Any suggestions on a fix for this? Any help is great.I think you asked more that one question.
Slim computers can have ventilation problems.
The HP web site should indicate what cards are recommended.
It is more of a heat issue rather that the ability of the power supply to DELIVER power. If is is a half high design, you will need to specify that the card can fit into the case. Also, newer machines now do not have the AGP slot. Instead they have PCI express or something like that. Check your documentation.Well the power supply is 160 watts and the motherboard is described as "Motherboard (system board) Hematite XL GL8E - Includes S-Video out port, PCI Express x16 graphics support, SATA 1.5 and 3.0 Gb/s support - No PCI expansion slots" so will I be able to install a PCI graphics card onto this board. I also saw a slot taken up by a TV tuner and was thinking I am going to need to take that out in order to install the graphics card which is ok with me because I do not use it anyways. If I order a low profile graphics card will my problem most likely be solved?Is this right?

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    *  Motherboard manufacturer's name: Asus M2NC51-AR
    * HP/Compaq name: HematiteXL-GL8E
    *  Socket: AM2
    * Supports the following processors:
          o Athlon64 X2 with Dual Core technology
          o Athlon 64
          o Sempron
Maximum memory: 2 x 1 GB DDR2 DIMMs, 2.0 GB total (unbuffered)
    *  One PCI
    * One PCI Express x16 (for grphics cards)

    *  Integrated graphics using nVidia GeForce 6150LE
    * Use up to 256MB of PC memory (with 512MB or more total PC memory)
    * Supports PCI Express x16 graphics cards