Have a HP-1409 running Windows 8 with graphics card AMD Radeon HD 7570. I have connected 3 acer monitors with the proper cables. They all work but only 2 out of the three at one time. Can someone someone tell me how to get all 3 to display at the same time.
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I've never seen a 7570 with a displayport but you need it for the 3rd display. Does it have dp?
Depending on he exact model of the card, two ports may share the same signal. Sometimes it's one dvi and a dp or any other combination. The manual should help.