Originally Posted by Mega Man
- the mobo pcie is rated at 75w! each but that does not mean it can support 75w each !! big difference ! that is the reson most higher end mobos have an additional connector for the PCIE
the 12v comes from the psu not the mobo ( IE none of the phases )
i could be wrong but iirc the psu 20 pin connector was made a 24 pin to help with this ( pice power- but only 1 is 12v )
your problem could be incoming power or your psu failing that is where i would start try a new/diff psu
That explains it! That is why my GD-65 had an additional connector. I could never figure out what it was for!
However mega if this is in fact the problem. Would it not of showed itself on my 6850's?they were heavily overclocked with +200mv on both cores and 1050mhz (35.5%). The overclock was high enough that both cards were pulling near enough the 200w mark each. So surely if this PCI-E power problem is in fact a problem would it not have showed itself then because those 6850's needed every watt they could get. Cause they only had a single additional 6 pin connector each. So the would of needed every watt they could get from both the PCI-E lanes and the 6pin connection.
I am wondering if it is indeed an issue with my PSU. It's only a year and a bit old. A Be Quiet! Dark Power Pro 10 850w unit. Based off of the Seasonic X platform as far as Im aware. It's a quality unit with 5 years of warranty. If it is an issue with my PSU I don't have a supply anywhere near powerful enough to test with.
Originally Posted by mus1mus
Originally Posted by Alastair
No I tested my cpu OC about a week ago. IBT passed 20x Very High. HCI Memtest passed to around a 600% pass before the first errors showed on the memory . an unstable OC wouldn't explain why i am tripping the PSU's protection.
It's not the stability that is in question. But the amount of stress the board is into.
OC'ed CPU + Overclocked GPU / 2-GPUs will tax the motherboard.
And as Mega said, you might be looking at the PSU. Though, you can also try by evaluating the GPU's and the CPU's power pull from the board.
yeah I am going to test IBT and heaven today when I get home and see what happens.Edited by Alastair - 10/21/15 at 11:40pm