|Beep codes found!|
I found this while looking for info about the physical size of the HP power supply that originally came with this mboard by searching using it's HP part number.
Illustrated Parts and Service Map
HP Compaq dx2400 Microtower Business PC
Pictures power supply, motherboard, chassis front I/O panel; part numbers, etc.
Where stuff is on mboard, etc.
Bios Setup settings descriptions. (It's rare to find those for a HP or Compaq computer ! )
F10 to get into it.
Bios beep codes - e.g.
2 short, 1 long - No graphics card installed, or graphics initialization failed
When the pdf has fully loaded, click on the floppy icon, once, at left in the top bar to download it to a location on your computer.
The 8600GT video card probably has a fan on it.
- if that fan and/or the heat sink under it gets clogged with dust and lint, the video chip it cools can overheat and fry itself.
- or - if the fan has cheap sleeve bearings, they eventually wear to the point where they produce too much friction, the fan can no longer spin fast enough or stops spinning altogether, and the chip it cools overheats and is fried
- or - if the video card was ever not all the way down in it's slot when the computer was booted, the card can easily be damaged.
Try moving the fan blade on the video card with a finger. If there's nothing wrong with it's bearings, it will move easily in "jumps".
If it does not move easily or won't move at all, the bearings on it are in bad shape.
You could try the procedure I detailed above regarding cleaning the card's contacts and installing it again, but if there was too much dus and lint or the card's fan is not good, the card's video chipset is probably fried.
Some video cards have a temperature sensor, and if so, there is usually a setting in software for it you can enable that will warn you when the video chipset is getting too hot.
I found a HP part number for your mboard on the web - 462797-001 .
Apparently it's used in many HP dx2400 MT - Micro Tower - models, and only in those models.
I looked up the HP dx2400 models, and chose one.
463317-001 Power supply - 300W power supply with power form correction - For use with HP Compaq dx2400 Microtower PCs "
I looked up 463317-001 -
that power supply part number is used only in dx2400 and dx2450 models.
No info about it's physical size found, but it looks like it's a standard size in that Illustrated Parts and Service Map pdf I found.
I looked up the minimum power supply (output) capacity required to support the 8600GT video chipset - 300 watts.
If this mboard is still in the orginal HP (or Compaq case), the original power supply has a 300 watt (output) capacity, and that's probably the power supply capacity you have.
So - when you had the 8600GT video card installed, the power supply was being loaded to 100% of it's capacity, or not much less than that, all the time. The power supply on the computer was just barely able to handle the video card.
Whether or not you have this mboard in it's original HP case, you can check what the rated total power output is on the label on the power supply.
If you get another video card.....
It should be a PCI-E X16 video card for the best resulting video performance. You can buy whatever card suits what you're willing to pay, BUT you MAY need to replace your power supply with one that has more capacity.
ALWAYS unplug or switch off the AC power to the case whenever you do anything inside the case!!
Your power supply must have at least the minumum capacity required to support a system with the graphics card you are using installed, or the max graphics card you might install in the future.
(Onboard video - video built into the mboard - IS NOT A CARD!)
You can go to the video card maker's web site and look up the specs for the model - often under system requirements - the minimum PS wattage, and, more important, the minimum amperage the PS must supply at 12v is stated. If you don't find that, any card with the same video chipset including any letters after the model number has very similar minimum PS requirements. Some power supplies have two or more +12v ratings - in that case, add those ratings to determine the total +12v current capacity.
Note: if the present PS brand is BESTEC, that brand is a lot more likely to fail, and when it fails, especially if it fails completely, it's a lot more likely to damage the mboard!
If you need to get a PS with more capacity, you can usually replace it with any decent standard sized standard ATX PS.
Standard (PS/2) power supply size - 86mm high, 150mm wide, 140mm deep, or 3 3/8" h x 5 7/8" w x 5 1/2" d , or very close to that, though the depth can be more or less for some PSs.
Don't buy an el-cheapo PS.
See response 3 in this: