Bitcoin Forum

Hi,

I have 6x1070 and want to know if its safe to work with Overclocking always?

I think this is not safe.I tell you.Gpu is not working for the lifetime.

So, how often we should OC and for how many hours or days?

Till you have warranty you can OC as many as you want. So it's 36 month 24/7 for most cards. If it's die just return it to your dealer.

I OC all my cards daily and twice on Sundays. :D

Just don't try to squeeze everything out to the limit ;)

I bought gpu with oc ,no need to second oc.If you really want to know try Google search.

If you keep the cards cool enough, they will last a long time even if overclocked.

 However, lifetime WILL probably be reduced as they'll run hotter than if you don't over clock.

This. The lifetime will probably be reduced from 12+ years to 10+ years

Its pretty hard getting modern cards to break a sweat though, I have a bunch of those 570 ITX pulses all squeezed to the max, each eating ~180w while dual mining and all it takes to keep them under 60C is a desk fan blowing hot summer air at them.

so what is the optimal temperature for gpu's in a mining rig? as well as their risers sata cables?

Unless you are pushing insane overclocks, the GPU will become unprofitable before it becomes unstable (or dies).

Nobody knows really, its all just speculation and anecdotal evidence from tiny sample sizes you can find here. Most recommend sub 70C, all we really know is where AMD/nvidia start throttling their cards so keep it below that at least.


You generally shouldn't use SATA powered risers. Sata power cables have to be designed to carry at least 54W while PCI-e slots are designed for minimum of 75W and it's a known fact that some graphics cards utilize all the power they can get from the slot (especially polaris based cards). That is unless the cables are thicker than their minimum required by spec, if they have AWG 22 or lower written on them then its fine (for a single connector). Molex powered risers are a safer bet though since they are good for at least 132W.

Now for the cable temperatures - they shouldn't go over body temperature if they are handling their load well, if they feel hot to the touch then you should reconfigure. Computer power cables generally have their weakest points around the connectors, a hot cable in the evening could mean a charred connector by the morning.