yes, thank you for pointing this out!

I didn't know each address has it's own unique private key and I only exported private key of first receiving address (I assumed that this private key will give me access to both receiving addresses)... Now I clicked on second receiving address and I exported private key for that address and this key is different then the first key! so I imported this second private key to Electrum and now I see my balance and history!

Thank you for explaining me these basic concepts... I HODL since 2013 and I still learn basics


Thank you BitMaxz, NeuroticFish, jackg for helping me! You guys make this community great!

Sorry I reply to my own post, but after hours of research and testing I found out that the issue is with having two receiving addresses in my old wallet.
So in my old wallet I have:
[PRIV_KEY]
[ADDRESS_1] (this address doesn't have any BTC, doesn't have transactions)
[ADDRESS_2] (this address has BTC, has transactions)

When I click on import and I put in text form:
I have this wallet imported (I see "default_wallet [imported]" in window header) but balance is "0". In "Addresses" tab I see my [ADDRESS_1].

When I click on import and I put in text form:
I have this wallet imported (I see "default_wallet [imported, watching only]" in window header) but balance is "0".

When I click on import and I put in text form:
I have this wallet imported (I see "default_wallet [imported, watching only]" in window header) and I SEE MY BTC AND TRANSACTIONS! (but this wallet is in "watching only" mode)

So how to import my private key with second address or with both addresses?

I tried:
I also tried

But every time "next" button is disabled

Yes, in my old wallet I have two receiving addresses and and in Electrum I see one of them (starts with "1PV"....)

Yes, I have "p2pkh:........." because guidelines in "info" button says "p2pkh:K...... -> 1......" so first characters of key and address are correct.

On my old wallet app (where I imported private key from) I see funds and history

Yes

Yes, I wrote there "p2pkh:[my_priv_key]" because guidelines in "info" button says "p2pkh:K...... -> 1......"


Another thing I realized is that I run Electrum on fresh Ubuntu 20.04 LTS install on VirtualBox VM. Network connection is set to NAT and I have internet connection on that VM and Electrum server status is green, but maybe it's related to port forwarding or internet connection configuration on VM ? I know I can check installing it on my host computer but unfortunately I don't trust my host windows machine enough to send my private key there.

I installed Electrum (from .org website  ) and after installation I selected private key import, I typed my private key and I clicked on "Next" button, but Balance is "0", history is empty, only in "Addresses" tab I see one address and when i right-click on it and select "Private key" I see my private key.

Server status icon in bottom right corner is green and I tried to connect to different servers but I still don't see my coins.

Is it possible to manually synchronize my wallet with network to see balance and history?

Many thanks for replies, especially to @h311m4n for high effort explanation!

Now I see that radeon card is a "must have" for such a minig rig, and you all suggest radeons 470 or 480 but these cards are expensive... $200-250 for a card is out of my price range.

As I wrote in my first post I can risk (and probably loose ) $200-250 in total.


So what do you think about buying radeon R9 270 2GB for the beginning (I found one for ~$50), and mine with this few weeks and buy RX 470 or 480 as a second card?


This is how I see my build:

• $50 - PU Zalman ZM500-LX 500W 120mm
• $50 - Asus H81M-Plus
• $50 - R9 270 2GB
• $50 - CPU Pentium G3260 3,3GHz LGA1150 (or Intel Celeron G1840 LGA1150)
• $20 - 4GB RAM and HDD

What do you think about this build now?

Please correct me if I wrong but for 600w power supply the monthly cost will be ~$50 (cost of electricity is 12 cents per Kilo-Watt hour in my area).


(Calculations from site http://www.overclockers.com/how-much-does-it-cost-to-run-your-pc/ )

So my break even point is ~$1.5 per day, but currently I make ~$5 per day with my gtx970 so it's profitable rigth?

(dear mod, I hope this is good forum for this topic - if not - please move)

Hi, I use my main computer for mining, I use NiceHash Miner software and I mine ~37Sols/s (i7 + gtx970). After few days of mining I'm ready to invest some mBTC or $$$ to build PC dedicated for mining.

I dont need case/screen/mouse/keyboard, I will buy cheap 4gb DDR ram and cheap HDD.

My biggest concerns are about motherboard, power supply, CPU and GPU.

I don't want to risk big amount of money ( $200-250 ), so for the beginning I'd like to buy cheap motherboard with 4 PCIe slots, and one GPU, and PS and CPU.
motherboard Asus H81M-Plus - $50, 1 x PCI Express x16, 3 x PCI Express 2.0 x1, chipset LGA 1150 (so i3/i5/i7)
power supply opengate 600W - $25 , or I can buy two opengate 400W $15 each - what do you think?
CPU - here I don't know if i5 is enough for 4 GPUs? or should I expect that CPU will be a bottleneck in this build and it's better to spend more on i7 ?
GPU - I found on ebay used gtx970 for $100 and I think that solid 25Sols/s for this price is a good deal - or do you think that AMD is better?


So what do you think about this build? Is that motherboard good for 4 GPUs? How to calculate power consumption for these GPUs? And how to calculate CPU "demand" for each GPU?

SRSLY? Is it a ponzi in ponzi? maybe we should send him our BTCs and he'll double it in 100 hours?


http://i2.kym-cdn.com/photos/images/facebook/000/531/557/a88.jpg

@btc-e.com - is that poll valid till the end of November? or should we vote in December too?

or if I can rephrase this question -> when are you going to add PLN currency?

From last 100 years energy cost is going lower because technologies (to produce electricity) are more eficient. I don't know why did you assume that energy cost will skyrocket (?).