Market is a market when all possibilities are open, unlike cex, where 'goods' have very short expiry date which leaves no option but price going down, and you can't short this 'market' so this is a loose loose situation unless others fall to this misrepresentation.

top card seems safe, bottom also ok, but the middle one's air intake is blocked and it will overheat.
maybe with some undervolting it will be in bearable temp but i doubt it.
best is to put middle card on extender.

maybe its more profitable buying the expensive one
until cheap arrive you loose 3 weeks of mining

from these three seasonic is best.
i would take little more for any case, like 850w or so

your question not understood ...what is doable?

photo very tight and upside down i think, take it from little distance for better understanding.

power supply is your main bottleneck

1.5BTC

It is not correct when you say "in cex price this is not the case"..

It's like there was an potato market where exactly same potatoes, would valued 10 times higher than same potato elsewhere.

In cex this is the case because of false data.

They market their potato as it is more valuable than others, but it is same rotting potato which looses price as everywhere else.

I consider this as a sophisticated fraud cause they present data not as it really is, and prices stay high cause there are many people to believe these lies.
Their built in calculator is on purpose mixing USD with BTC and on purpose ignoring difficulty.

gigabyte usually works fast without major tuning while sapphire may need oc to reach same khs

its no secret everyone mining doge now,
it can be seen in all comparison sites and it can be seen by mining difficulty

one 280x is 250w full load i would take extra 50w for oc thats 2100w for cards only
add about 150-200w for rest of the system

for me was the opposite,
yesterday received more than previous day and definitely not lowest this week.

in tc 8192 i 13 you use g 2 ?

cryptsy 0.00000086
multipool 0.00000090

its correct

writer suggest either its ddos attack or a scam
ddos would break the servers but mining seems stable
op profile said he was online about one hour ago

if send you 10000 btc how much is it?

time in chart updates so chart is working

after hashcows hack, middlecoin got almost twice power, if average daily balance was 150btc now it might be twice or more, would be perfect time to bail out

the test will be next payment

all "switching pools" not really switching they usually mine same coin for long time so safest way is to point the strongest miners to that coin directly and weak miners to several switching pools to get info what they mine

If the doge won't come to moon then moon must go to the doge.

consider power consumption and which psu you will need

There is third possibility