video card not detecting on my pc i installed

December 12, 2010 at 14:09:45
Specs: Windows 7, 2.8 ghz
my computer not detecting a new video card i installed

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December 12, 2010 at 14:21:57
You're going to have to do a LOT better than that. Post your complete system specs in detail. Make sure to include the make/model of your old video card (or integrated graphics), the make/model of the new video card & the power supply specs.

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December 15, 2010 at 19:52:17
my computer is doing the same thing i have a hp desktop with a intel g33/g31 express chipset family its a dual-core cpu e5300@2.60hz 6.0gb ram windows vista 32 bit home premium and a 450psu now the onboard chipset is junk for what i want to do i play wow so i bought a galaxy geforce 9500gt pci-e video card now i was told that i jus plug it in and my comp will disable the onboard and the video card will run at 800x500 res till i install new drivers for it i tryed that and my monitor went to sleep so i hooked everything back up to how it was stock and had it plugged in jus to see if it was even detecting it and nothing i even hit scan for harware changes and nothing is it possible that my pci slot is bad or am i doing something wrong??

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December 15, 2010 at 20:59:24

Supply the specific model number, or the part number, of your HP desktop computer.
Go here:
Scroll down - the specific model is near the top of the label, the computer's part number is on the p/n line.

Did you UNPLUG the computer when you were installing (or un-installing) the video card ? If you didn't you may have damaged it !!

If the 9500gt pci-e card has one or two power sockets on it, you MUST plug in connectors from the power supply to it / those that fill the sockets, or you will get no video from the card.
If your power supply does not have a connector or two connectors that fill the sockets, and if the card did not come with wiring adapters, then you must buy yourself a wiring adapter that can be plugged into the sockets and into a connector you do have on the PS.

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December 16, 2010 at 06:59:57 is my exact comp except the power supply i upgraded the powere supply and yes i completly powered down my comp and grouded myself before i install anything

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December 16, 2010 at 07:05:46
and the video card looks like it only has 1 plug for it and i believe that its for a sli but not entirely sure its very small and thats the video i have

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December 16, 2010 at 15:47:21
Your video card does not have a power socket on it. That would be a larger 6 or 8 "pin" socket, two rows of 3 or 4.
That makes sense since your 9500GT video chipset requires only a 350 watt minimum or greater PS be on the system.

HP PAVILION A6742P DESKTOP PC support home page

Product specs

"Integrated video is not available if a graphics card is installed"

That's the usual situation.
When you install a card in the PCI-E X16 slot, the bios automatically disables the onboard video, ignores the settings for the onboard video in the bios, and the ram is no longer shared with the onboard video. The computer user can't disable the onboard video in the bios by changing any setting.

(The only thing setting the Primary video or similar setting in thar case does is provide info that Windows needs - e.g. if you set that to PCI-E, a PCI-E card will be able to use it's enhanced capabilities in Windows via it's specific drivers having been installed - if that setting is set to onboard video or PCI, and the video card is PCI-E, the specific drivers loaded for the PCI-E card WILL NOT be able to the card's enhanced capabilities in Windows properly - you still get video in Windows but it can't work properly with that improper setting in the bios. )

"Power Supply: 250W"

Typically minimally sized on a brand name system.

It was a good idea of yours to upgrade the power supply, but how much did you pay for it and what make and model is it ? There are lots of el-cheapo power supplies that are a lot more likely to cause you problems.

So - your video card should work fine, unless the power supply is defective, or you damaged the power supply or the card.

The contacts on PCI-E cards / in PCI-E slots are very close together - if the card is even slightly mis-aligned, the card and the PCI-E slot circuits are easily damaged.

The PCI-E card must be all the way down in it's slot and it's end bracket that has the video port(s) on it fastened down, usually by means of a screw, BEFORE the computer is booted. Some PCI-E X16 slots also have a sliding plastic lock on the slot to lock down the inner end of the card. If it isn't fastened down, merely plugging in a monitor's cable when the computer is running can shift the card upwards in it's slot and damage it.

Your mboard should produce an error beep pattern if the card is all the way down in the slot and is defective or damaged, if there's nothing else wrong.
e.g. it's often two short beeps, a long beep.

I'm assuming, or course, that you have a case speaker hooked up or another sound device so you can hear mboard beeps, and you DO hear one short beep while booting when you use the onboard video.

If you don't hear any beeps, try the computer with the monitor connected to the onboard video when the graphics card is not installed.
If you STILL hear no beeps, your computer does NOT boot normally, then your PS has probably been damaged.

The warranty does not cover you damaging the card or the PS yourself.

If you need to replace the video card, you could do a lot better than one with a 9500GT video chipset, for not much difference in money. There are often many of them on sale, or that have a mail-in rebate, this time of year, and after Xmas.

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