Buying used 2500k

[grandpatzer]

It won't generate quite as much heat as IBT - but it isn't far off

Well my impression was that it was 2 months on air and the rest of the time on water, it prolly has been folding under water for 4-8 months.
So I guess the folding is 6-10 months in total.

Either way I'm hoping to atleast get 2 years (24months) of this cpu.

But I guess there could be a not so nice surprise for me in the following months if electromigration is a big factor on 32nm CPU's

 

[jamesriley94]

As long as you're safe with the clocks after you should be fine.
There was a user here a few weeks ago who had his chip at 5ghz, 1.48v 24/7. He said it was fine for about 3 months, but then every month after that it needed another 0.02v to keep it stable.

I'd guess if you dropped the clocks back to 4.4/4.5 you should be fine for the 2 years you're saying.
Just after that, don't list it on ebay as 'never overclocked' as most people seem to be doing now with their used chips

 

[grandpatzer]

As long as you're safe with the clocks after you should be fine.
There was a user here a few weeks ago who had his chip at 5ghz, 1.48v 24/7. He said it was fine for about 3 months, but then every month after that it needed another 0.02v to keep it stable.

I'd guess if you dropped the clocks back to 4.4/4.5 you should be fine for the 2 years you're saying.
Just after that, don't list it on ebay as 'never overclocked' as most people seem to be doing now with their used chips

So the user with 1.48v 5ghz 24/7 kept adding 0.02v/month to keep 5ghz 24/7 after 3 months?
Could I run to similar problem with say 1.20v so after a month I need 1.22v and so on...
Also I won't be folding this CPU, in fact 90% of time it be idle 0-10% load.

Also I guess if my cpu does 1.45v@4.9ghz it might do 1.32v@4.7ghz and 1.25v@4.4-4.5ghz?

For now I'll propably try 1.2v and see maximum stable clocks, I'l propably start with 42x100 and 1.2vcore, if stable increase 100mhz until crash then decrease 50mhz and keep tweaking until 20 IBT runs stable.

 

[jamesriley94]

Numbers like that are far too specific to advise on.
Every chip's different. You need to see what yours can do yourself really.

But - I don't think you'd have to increase the voltage for lower clocks - but I'm not 100% sure

 

[blitztech]

Do not buy used components. It means it has already began to degrade. And to boot its a used overclocked CPU which has been pushed to it Air cooled voltage limits