Installed Graphics card - Sapphire HD4830

December 24, 2010 at 07:49:36
Specs: Windows XP
I have a Dell Dimension 9200 PC. The output to my monitor froze just recently so I used the TFT monitor with my laptop and all was OK so I ruled out the monitor being faulty.

I replaced the graphics card with a Sapphire Radeon HD 4820 but the display is still blank (black). I have inserted the disc containing the drivers but still no joy.

Any ideas on how I can resolve this problem?


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#1
December 24, 2010 at 08:07:47
If the display is blank, what's the point of inserting the driver disk? You don't need drivers to get a display.

The HD 4830 is a high end gaming card & requires a lot of power. You need at least a 450W PSU with 30A on the +12v rail. If you're still using the factory Dell PSU, it's probably too weak to support it. Did you connect the 6-pin PCIe plug to the card?


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#2
December 27, 2010 at 04:33:30
Yes, connected the Graphics card with the 6 pin plug, other people have told me that the PSU wont be a majot problem. Can you reccomend a suitable graphics card that will fit with the current PSU or will have to upgrade to higher PSU?

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#3
December 27, 2010 at 05:44:46
List the specs of your psu. Open the case and read the label on the side of the psu. What are the 12v ratings?

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#4
December 28, 2010 at 09:28:19
dual 12V rails, V1 and V2, +12V1 = 17A +12V2 14A

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#5
December 28, 2010 at 09:41:15
That seems to be your problem. The 4830 requires 28 amps on it's own. You could try a new psu, but look for one that has a single 12 volt rail like the Corsair brand found on newegg.com. look for one with at least 40 amps on the 12 volt rail.

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