I really would not recommend replacing the GPU with something so high end without also upgrading the PSU to a quality brand and model Gold efficiency rated unit, if the new GPU works while the Corsair CX750M is still present, count your blessings and then hold off using the computer until you have swapped in a better PSU, if money is not a problem or you got the replacement card at a knock down price fine, if cash is tight I would have gone for a slightly less expensive card + a better PSU to power it and definitely something with a ten year warranty like the Seasonic hereNot a good choice of PSU for a high end build such as yours, the CX is the budget range of Corsair that are intended for office or school type computers that either use onboard graphics or only the most basic of video cards, a Gold efficiency rated PSU from a quality brand is a must for gaming rigs, the CX also has a bad failure rate, page one of the reviews here is full of complaints.
For clarity, are you saying that your previous GPU was confirmed as being dead by a local tech and you tried you new GPU with the Corsair CX750M last night and everything worked as it should.I have been looking at a few psu will order one today took the pc to a pc shop the other day to prove the card was dead powered it up last night worked fine do you think a 750w or 1000w?
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