I just got an Accelero L2 Pro heatsink and fan for my graphic card, the problem is that I had to use a molex adapter that came with the thing, the fan comes with two different connectors, 7v one and 12v one:
You can see in the picture what I'm talking about, to the right you have the cables that come out of the fan and to the right the molex adapter, I have connected it to the 12v connector but I don't notice any difference from the 7v one, infact both run quite slow I think, I have tried different molex with no result and I've read that at 12v the fan is quite noisy, which mine isn't because I think it's running at the slowest speed possible, how can I fix this?
edit: the powersupply is a Powerline F-500+ from Coolbox.
I haven't got one, I thought of connecting it to a sys_fan slot on the motherboard but I think the 3pin header is slighty different from the ones that go there, I guess if I could connect it there it would be fixed.
I still don't get why the molex isn't supplying 12v to the fan tho, it seems more like 3v or 5v.
Mainly because after reading reviews about it they say that it becomes loud at 12v and I see no difference between the 7v option or the 12v neither in the temperature nor the noise level, I might be wrong but I've seen quite a few fans working at 7v and 12v and this one seems to be working very slow compared to those.