Thanks in Advance.
Yes, the Palit nVIDIA GeForce GTS 450 Graphics Card (2GB, DDR3, HDMI, PCI Express 2.0, as shown in your link will work, but it requires a 6-pin PCIe power connector, you might need to upgrade the power supply, the Inspiron 530 Mt has either a 300w, or a 350w power supply installed depending on which processor was factory installed.
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Assuming that you have an Inspiron 530 Mt and not the 530s Slimline version.
This system supports a PCI Express x16 video card, check out the card shown HERE
Thank you for the prompt reply. From your information i had a look around and was wondering would this one work?
full specs http://uk.geforce.com/hardware/desktop-gpus/geforce-gts-450/specifications
can you please provide a link to such a power supply?