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I have recently bought a 2 port asrock usb3.0 card to go into a pc that I am building up for my grandfather an e7500, g41m-s3, 8gb corsair ram to replace his old pc (conroe 865pe,3gb ddr400, e5400, hd4650 1gb).
The issue I have is that whenever I plug anything in i get screen flickering as if there is some kind of feedback from the usb slot, It does not seem to affect the digital signal only analog.
I tried it on the g41m-s3 with the dsub out and got interference whether connected to the monitor or the tv, so I fitted the card to another computre that had dvi output, when connected via dvi-hdmi cable the flickering was not visable but with a dvi to d-sub the screen again flickered.
I then dug out my old pci radeon9250 (emergency graphics incase graphics die/testing) and connected that up in the g41m-s3 board, this did not seem to suffer from interfrence over d-sub or dvi.
Does the interference suggest a faulty usb 3 card? or did the 9250 escape because it is on pci not pcie bus (I assume onboard graphics on on pcie bus too)?
On a side note the g41m-s3 also has some very poor ram voltage control, often overvolting ram a fair bit when set to auto and values changed when using differnt fsb speeds, Because this is going to a person unfamiliar with messing around with bios etc I had to try three different sets of ram and two different fsb cpu (choice of e8400 and e7500) before I had a combo that would be failsafe voltage wise if the bios some how reset.
The issue I have is that whenever I plug anything in i get screen flickering as if there is some kind of feedback from the usb slot, It does not seem to affect the digital signal only analog.
I tried it on the g41m-s3 with the dsub out and got interference whether connected to the monitor or the tv, so I fitted the card to another computre that had dvi output, when connected via dvi-hdmi cable the flickering was not visable but with a dvi to d-sub the screen again flickered.
I then dug out my old pci radeon9250 (emergency graphics incase graphics die/testing) and connected that up in the g41m-s3 board, this did not seem to suffer from interfrence over d-sub or dvi.
Does the interference suggest a faulty usb 3 card? or did the 9250 escape because it is on pci not pcie bus (I assume onboard graphics on on pcie bus too)?
On a side note the g41m-s3 also has some very poor ram voltage control, often overvolting ram a fair bit when set to auto and values changed when using differnt fsb speeds, Because this is going to a person unfamiliar with messing around with bios etc I had to try three different sets of ram and two different fsb cpu (choice of e8400 and e7500) before I had a combo that would be failsafe voltage wise if the bios some how reset.
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