Quote from: Starscream on March 04, 2014, 02:12:07 AM

Quote from: feofhweufheuiwhfef on March 04, 2014, 01:41:01 AM

Quote from: Starscream on March 04, 2014, 01:11:13 AM

1. Yes, but you should get powered risers if you plan to have lots of cards.
2. It won't reduce any KH/s
3. There's no issue to begin with (see #2)
4. They are plugged via a normal power cable to your PSU (usually a molex connector, although there are sata ones too).

Thanks

but if (2) and (3) are not an issue, then why would I want to get powered risers?

Because you don't want all the extra power to go through your motherboard. It's the same reason anyone who uses multiple of any type of card (nVidia or AMD) uses powered risers.

Most motherboards are designed to handle maximum 2 additional cards boarded on them, which equates to additional 150w (+/-). More cards (75w+- per card) means more power is needed to power them - more current goes through the motherboard, which means increase in likelihood of frying said motherboard.

OK... but here's one interesting thing about the nVidia 750 Ti

According to this blog post, they only use between 30 and 40 watts.

So my question is, are they going to use 75 watts just because that's what the x16 slot is, or will they in fact use 75 watts anyway?

I mean, here is what I was planning

1x 750 Ti in the x16 slot
2x 750 Ti in the x1 slot, with riser cable

I presume that the overall power usage would be 30-40 watts x 3, which is 90-120 watts.

Would that really be too much for the motherboard to handle?

Thanks