Bitcoin Forum

Hello guys. I'm new in this cryptocurrency world. Me and some friends (4) are willing to invest on some used hardware to mine monero.

Our rig will be something like this: (we will buy everything besides the 2 GPU's)

CPU: Intel Celeron G550 2.6GHz (20$)
MB: Asus P8H61 M LX (35$)
RAM: 2GB GSkill 1600MHz DDR3 (15$)
GPU 1x R9 270X, 1x R9 270 (0$)

Likely hashrate: 1000H/s

TOTAL: 70$

My friend has some old PSU's that we will be using.

Is this old hardware good for mining? Will there be any bottlenecks?
Note that we will focus 99% on GPU mining. We plan to add more GPU's in the future with the money made mining.

We don't have to worry about electricity. Our goal is to achieve +30$ per month for each. The computer will run 24/7.

And, is it better to mine on Windows or Linux?

The most important question, is this worth it?

Thanks.

I would go for it. 1000 h/s is pretty close to 2$ today.

You and your friends actually got nothing to loose, well ok 14$ per investor is the worst case.

Any old hardware works as long as it has pcie slots. If you are familiar with bios modding and flashing I would go linux otherwise windows. Windows has better software tools for volt and clock management.

it will work..since it is a bit old system make sure the cpu has good cooling available ...else there is possibility of reaching the max tdp & restart

You didn't factor in cooling in your calculation. You need to cool your computer to keep in in shape...
Monero fell from  about $9 to $7, but that does not mean it won't spring back up.

Thanks for the replies.

@antantti

Our plan is to invest on a HD 7990 or 2x R9 280X in the future. Or is other good options for mining? Will the Celeron and that motherboard will able to run smooth with 4 GPU's mining? We will buy those adapters PCI 1X to PCI-E 16X on Ebay. And I guess I will try both Windows and Linux and see what are the advantages and disadvantages of both systems.

@niksdt101 @Gohs

Well, winter is starting here in Portugal. We will have room temperature for about 16-17 ºC MAX everyday. But we will buy 4 FANs for 10$ to be sure everything runs cool.

The mobo/cpu combo are fine. With those temps you don't really need to invest in cooling, just put whatever fan you got handy, PC or not andblow torwards the cards. I would advise against HD 79xx and 280x cards, they consume too much power for what they hash. Try R9 380s, R7 370s, if you can power them, 290/390(x), they are selling as low as 200$ on ebay. Also, since the anouncement of the 1070 ti (god knows why they made that) people are selling their 1070s for as low as 350$, even lower.

I'm still the highest bidder on this one, no idea why no one has shown interest, maybe cause the card is...really ugly, but a 390x is a 390x. Take it from me if you want, i'm unlikely to purchase anyway. You'll need a PO box/family member/friend to receive it for you tho.

http://www.ebay.com/itm/VisionTek-Radeon-R9-390X-8GB/172911927943?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1431.l2649