Category Archives: Hardware

Samsung Gear VR, nice looking but useless!

You won’t be able to stream PC games via USB Tethering (WiFi is too laggy) or charge the device because they use a micro-USB port to connect a touchpad built-in to the side of the headset.
This is 21st Century, why don’t use a Bluetooth controllers instead?

Answer: They don’t want to mess with Facebook and PC gaming market.

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My Custom Oculus Rift VR!

I am proud to present to you the world’s first Smartphone-Based (Nexus 5) Custom VR Head Mounted Display that can stream 1080p games from PC to Android device via USB cable. FullHD display with a pixel density of 445 ppi and 90 degree field of view.

Use built-in head-tracking sensor at 1000Hz and support FreeTrack protocol, Virtual Joystick/Controller or mouse. A system’s latency is approx 30 milliseconds (LCD Monitor to HMD).

I am looking for investors who can finance my new Virtual Reality project.
Any interested partners please email me at [email protected]

  • Project Budget: £75 (~$125)
  • Development Time: 3 days
  • True HD IPS+ @ 60Hz
  • Screen Pixel Density 445 ppi (Oculus Rift DK2 = 386 ppi)
  • Six-Axis sensor MPU-6515 (Oculus Rift DK2 = MPU-6500)
  • Work with all DirectX 9, 10 and 11 PC games
  • I managed to remove softkeys from my Nexus 5

If you know polish, you can read about my HMD:

FullHD source vs VR Goggle screen quality comparison.

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AMD Radeon R9 295X2 Hardware Specification

A Chinese web-site has published what it claims to be the first image of the AMD Radeon R9 295X2 graphics card. Now we have the full specification of the upcoming Radeon and some cryptocoin mining benchmarks! (highest = better)

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Mining Profitability (Scrypt) – January 2014

cryptocurrency is a type of digital currency that relies on cryptography, peer-to-peer networking and decentralization. In some cases a proof-of-work scheme is used to create and manage the currency.

List of Digital Currencies (Cryptocurrencies)

For a full list of digital currencies, see list of digital currencies at CoinWarz.com

Wallets

Coin wallet software has been implemented in several programming languages for personal computers, mobile devices, and as web applications. At the most basic a wallet program generates and stores private keys and communicates with peers on the coin network. When making a purchase with a mobile device, the use of QR codes to simplify transactions is ubiquitous. There are also now several server software implementations of the coin protocol. So-called “full” nodes on the network validate transactions and blocks they receive and relay them to connected peers.

Coin uses public-key cryptography, in which pairs of cryptographic keys, one public and one private, are generated. A collection of keys is called a wallet. Note that sometimes this term is used to mean the software itself in the sense of digital wallet. A coin transaction transfers ownership to a new address, an alphanumeric string of the form 1FfmbHfnpaZjKFvyi1okTjJJusN455paPH derived from public keys by application of a hash function and encoding scheme. The corresponding private keys act as a safeguard; a valid payment message from an address must contain the associated public key and a digital signature proving possession of the associated private key. Because anyone with a private key can spend all of the coins sent to the corresponding address, the essence of coin security is protection of private keys.

Mining Pools

Pooled mining is a mining approach where multiple generating clients contribute to the generation of a block, and then split the block reward according the contributed processing power. Pooled mining effectively reduces the granularity of the block generation reward, spreading it out more smoothly over time.

How to find mining pool?

Just type: [Cryptocurrency Name] + [Pool] in Google i.e. Doge Pool.

  • Create an account on the Pool
  • Set your Worker (user name and password)
  • Set your Payment Address = Your Coin Wallet Address
  • Use your Pool settings to write a batch (.bat) file, example is below.
  • Start your mining software using your Batch File, i.e. cgminer.
  • Check your Dashboard on the Pool (wait 30 minutes and compare hash rate to hash rate in cgminer)

Mining Software

Miners have a choice among several mining programs, for instance cgminer, BFGMiner, DiabloMiner, poclbm, and Phoenix. A more recent release of any one of them may contain a slightly more optimized version of the OpenCL-based mining program, while others may do a better job of auto-overclocking graphics cards. Some of these mining programs can also control FPGA-based mining hardware, or even the latest ASIC-based equipment. My recommendation is to use cgminer 3.7.2 (version 3.5.0 for Litecoins).

My cgminer setting for 4x Radeon HD 7990:

cgminer.exe –scrypt -o stratum+tcp://[server]:[port] -u [user] -p [password]  –intensity 13 -g 2 –thread-concurrency 8192

Download the latest version: cgminerBFGMinerDiabloMinerpoclbmPhoenix.

Mining Hardware

It is time to choose your hardware for Scrypt Mining Rig. Mining software will work on any computer running any version of Windows from XP to 8.1, Linux or Mac OS X. Don’t waste your money and power (Watts). You don’t need strong CPU, lots of memory, hard disk,  and definitely no need computer case!

The Best Rig suitable for 1-8 GPU’s:

  • Motherboard: ASUS M5A99X EVO R2.0
  • CPU: AMD Sempron 145 (Single Core 2.8GHz)
  • RAM: Corsair Vengeance 8GB DDR3 1600MHz
  • SSD: Kingston 60GB SSDNow V300 or Pendrive USB 3.0
  • FAN: Sinbo 18inch Floor Fan (75W)
  • PSU: 80 Plus certified 1475-1600W (optional 2x 800W+)
  • Other: PCI-E Risers, Power Meter, LCD Thermometer

TOTAL PRICE: £500-560 (price not including Graphics Cards)

Graphics Cards –  how many hashes?

  • Statistics about the mining performance of various hardware used in a Mining Rig can be found here: Litecoin.info

How to pick the best PC Power Supply?

  • Look for units with “80 Plus” certification. Though the certification process isn’t especially stringent, 80 Plus-certified units are confirmed to be at least 80 percent efficient; and 80 Plus has tiers for even more-efficient units, including 80 Plus Bronze, Silver, Gold, Platinum, and Titanium certifications. Power supplies in the higher certification tiers tend to command very high prices, however. All 80 Plus Power Supplies can be found here: 80plus.org
  • Do not exceed the maximum power! Buy Power Meter for only £10, check the Power Input Watts and compare to the Power Supply Input Wattage (find you PSU model here)

The Difficulty

The difficulty is the measure of how difficult it is to find a new block compared to the easiest it can ever be. It is recalculated every 2016 blocks to a value such that the previous 2016 blocks would have been generated in exactly two weeks had everyone been mining at this difficulty. This will yield, on average, one block every ten minutes. As more miners join, the rate of block creation will go up. As the rate of block generation goes up, the difficulty rises to compensate which will push the rate of block creation back down.

Please note that the difficulty can increase!
From the other hand a coin’s value can increase.

Assuming 20% income decreases every month but it is hard to predict the income for the next month.

Mining Profitability (Scrypt)

Extreme Build Calculation #1 (4x Radeon HD 7990)

Mining Rig (CPU, Motherboard, RAM, SSD) £450
Graphic Cards (4x Radeon HD 7990): 4x £600 = £2400
Fan, Risers, Power Meter, Thermometer: £100
Boltless Industrial Heavy Duty Shelving: £80 (not included)

Rig Cost: £2950 (25th January 2013)
Electricity Cost UK (1.9KW x 24h x 30.5 days) : £160/month
British Gas (Fixed Price Feb 2015) 11.040p/kWh – please check your supplier!

DOGE Coin (Hash Rate: 5000KH/s, Difficulty: 1305) = $82 (£50) / day
Monthly Profit: £1525
Bitcoin Exchange (International Money Transfer): $50 (£30) / transaction

Mining Income (first month): £1495 / month

  • 1st Month: – £2950 – £160 + £1495 = – £1615
  • 2nd Month: – £1615 – £160 + £1196 = – £579
  • 3rd Month: – £579 – £160 + £957 = + £218
  • 4th Month: + £218 – £160 + £765 =  + £823
  • 5th Month: + £823 – £160 + £612 = + £1275
  • 6th Month: + £1275 – £160 + £551 = + £1666

High-End Build Calculation #2 (4x Radeon R9 290)

Mining Rig (CPU, Motherboard, RAM, SSD) £450
Graphic Cards (4x Radeon R2 290): 4x £320 = £1280
Fan, Risers, Power Meter, Thermometer: £100
Boltless Industrial Heavy Duty Shelving: £80 (not included)

Rig Cost: £1830 (25th January 2013)
Electricity Cost UK (approx. 1.3KW x 24h x 30.5 days) : £105/month
British Gas (Fixed Price Feb 2015) 11.040p/kWh – please check your supplier!

DOGE Coin (Hash Rate: 3300KH/s, Difficulty: 1305) = $54 (£33) / day
Monthly Profit: £1006
Bitcoin Exchange (International Money Transfer): $50 (£30) / transaction

Mining Income (first month): £976 / month

  • 1st Month: – £1830 – £105 + £976 = – £959
  • 2nd Month: – £959 – £105 + £781= – £283
  • 3rd Month: – £283 – £105 + £625 = + £237
  • 4th Month: + £237 – £105 + £500 = + £632
  • 5th  Month: + £632 – £105 + £400 = + £927
  • 6th Month: + £927 – £105 + £360 = + £1182

Mid-Range Build Calculation #3 (3x Radeon HD 7950)

Mining Rig (CPU, Motherboard, RAM, SSD) £450
Graphic Cards (3x Radeon HD 7950): 3x £225 = £675
Fan, Risers, Power Meter, Thermometer: £90
Boltless Industrial Heavy Duty Shelving: £80 (not included)

Rig Cost: £1215 (25th January 2013)
Electricity Cost UK (approx. 760W x 24h x 30.5 days) : £65/month
British Gas (Fixed Price Feb 2015) 11.040p/kWh – please check your supplier!

DOGE Coin (Hash Rate: 2000KH/s, Difficulty: 1305) = $33 (£20) / day
Monthly Profit: £610
Bitcoin Exchange (International Money Transfer): $50 (£30) / transaction

Mining Income (first month): £580 / month

  • 1st Month: – £1215 – £65 + £580 = – £700
  • 2nd Month: – £700 – £65 + £464= – £301
  • 3rd Month: – £301 – £65 + £371 = + £5
  • 4th Month: + £5 – £65 + £297 = + £237
  • 5th Month: + £237 – £65 + £238 = + £410
  • 6th Month: + £410 – £65 + £214 = + £559

Low-End Build Calculation #4 (Radeon HD 7970)

Mining Rig (CPU, Motherboard, RAM, SSD) £450
Graphic Card (Radeon HD 7970): £240
Fan, Risers, Power Meter, Thermometer: £60
Boltless Industrial Heavy Duty Shelving: £80 (not included)

Rig Cost: £750 (25th January 2013)
Electricity Cost UK (500W x 24h x 30.5 days) : £40/month
British Gas (Fixed Price Feb 2015) 11.040p/kWh – please check your supplier!

DOGE Coin (Hash Rate: 700KH/s, Difficulty: 1305) = $11.6 (£7) / day
Monthly Profit: £214
Bitcoin Exchange (International Money Transfer): $50 (£30) / transaction

Mining Income (first month): £184 / month

  • 1st Month: – £750 – £40 + £184 = – £606
  • 2nd Month: – £606 – £40 + £147= – £499
  • 3rd Month: – £499 – £40 + £118 = – £421
  • 4th Month: – £421 – £40 + £94 = – £367
  • 5th  Month: – £367 – £40+ £75 = – £332
  • 6th Month: – £332 – £40 + £68 = – £304

I have a lot of coins, what next?

  1. Find a Coin Market that allows you to buy/sell your coin i.e. DOGE.
    Cryptocurrency Exchanges / Markets List: CryptoCoin Charts
  2. Sell your coin and buy Bitcoin (i.e. Cryptsy)
  3. Convert money in Bitcoin (BTC) to US Dollars (USD) or other currencies (i.e. Mt.Gox)

Final Thoughts

“He who hesitates is lost.”

Please feel free to leave your comments below!

Author: Marcin Grygiel (First Ever)

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4x Radeon HD 7990 Mining Monster Rig (8 GPUs)

Cryptocurrency is a type of digital currency that is based on cryptography. Cryptocurrency uses cryptography for security, making it difficult to counterfeit. Public and private keys are often used to transfer the currency from one person to another.

Cryptocurrency is considered a counter-culture movement related to cypherpunks, who advocate the use of cryptography as a route to social and political change. Cryptocurrency presents a form of this movement in that it is essentially a fiat currency, which means it only has value if people agree to such and use it as a medium of exchange. However, because it is not tied to any country, its value cannot be affected by a central bank. In the case of Bitcoin, the most prominent functioning example of cryptocurrency, its value is determined by supply and demand in the market. As such, this currency behaves much like gold and other precious metals.

Mining Monster Rig – 8 GPUs (4x Radeon HD 7990)

Windows 8.1 and 8GPU’s

Mining Pool and 5MH/s+

Performance (depending on the clock/voltage):

  • Hash Rate: 4800-5600KH/s
  • CPU Usage: 55% (average)
  • RAM Usage: 1.9-2.2GB
  • Power Input: 1740-1970W
  • Power Output: 1500-1800W
  • Temperature: 58-79°C

Specifications:

  • Motherboard: ASUS M5A99X EVO R2.0
  • CPU: AMD Sempron 145 (Single Core 2.8GHz)
  • RAM: Corsair Vengeance 8GB DDR3 1600MHz
  • GFX: 4x MSI Radeon HD 7990 (8 GPUs)
  • PSU: Cooler Master Silent Pro M2 1500W
  • SSD: Kingston 60GB SSDNow V300
  • FAN: Sinbo 18inch Floor Fan (75W)

Software:

  • Microsoft Windows 8.1 (64-bit)
  • AMD Catalyst 13.12
  • AMD APP SDK 2.9
  • CGMiner 3.7.2

Settings:

  • GPU Voltage: 1.050V (1.100V)
  • GPU Clock: 950MHz (1000MHz)
  • CGMiner 3.7.2: -l 13 -g 2 –thread-concurrency 8192

Powered PCI-E Riser:

 

See also my new article: Cryptocoin (Scrypt) Mining Profitability 2014
Please feel free to leave your comments below!

Author: Marcin Grygiel (First Ever)

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Hexa-Core GPU – my crazy build is coming soon!

Exclusive only on First Ever!
Feel the POWER – 6-core GPU 18GB DDR5
Yeeeeeeeaaaaaah… this is crazy!
Build under construction… coming soon!

Hexa-Core GPU

 

Update

Two card installed, but I need a PCI-e riser to add the 3rd one in.
I managed to drop the temperature down of my server to 60-69°C (from 90-100°C).

Server

Server 2

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Why I hate HP laptops?

Fortunately, I never bought any HP laptops but I have fixed a lot of them, for my friends. I don’t know about the new models, but I suppose they didn’t change much on that –  moreover, new laptop prices drop every year!

Reasons why NOT to buy a HP laptop:

  1. Broke soon after warranty expired!
  2. All HP laptops have a bad design for cooling!
  3. HP loves pre-installed Bloatware & Crapware
  4. They’re more expensive than other good brands.

Cleaning HP Cooling Fan

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It’s time to break some records!

Today I bought Corsair Vengeance 16GB Quad Channel DDR3 Memory Kit and decide to break some benchmark records. I’m not using Liquid Nitroge only water cooler with custom fans.
It will be really hard to get to the Top 20 Resultshwbot.org

Before we look at the numbers, let’s take a brief look at the test system that was used. All testing was done on Windows 8 Pro 64-bit operating system.


Noisy Beast
– First Ever build 2013

Noisy Beast - Build 3     Noisy Beast - Build 6

CPU: Intel Core i7-3930K @ 4.8GHz (1.445V, max 72°C)
MB: Asus P9X79 Pro (Bios 4302)
Mem: Corsair Vengeance 16GB DDR3-2400 (CMZ16GX3M4A2400C10)
SSD: Samsung SSD 840 Pro Series 256GB (Firmware DXM05B0Q)
PSU: CoolerMaster Real Power Pro 1250W (RS-C50-EMBA-D2)
Cooling: Corsair Hydro Series H100i Water Cooler
Paste: Coollaboratory Liquid Ultra
Fans: 2x Koolance FAN-12038HBK-184 – 59.0dBA @ 4000 RPM
(according to xbitlabs.com review – 76.5dBA @ 4000 RPM)

Good optimization is key to success – it’s over 64GB/s !

AIDA64 Benchmark

 

Worldrecord Ranking on 18 September 2013

2nd place – AS SSD BENCHMARK: WORLD RECORDS – 16275 points
2nd place – 3DPM-MT BENCHMARK: WORLD RECORDS – 1170.38 points
3rd place
 – MULTI CORE LINPACK: WORLD RECORDS – 8sek 968ms
5th place – BLACK HOLE BENCHMARK: WORLD RECORDS – 20800 marks
7th place – WINRAR BENCHMARK: WORLD RECORDS – 16730 KB/s
8th place – 3DPM-ST BENCHMARK: WORLD RECORDS – 132.98 points
12th place – FRYBENCH: WORLD RECORDS – 2min 55sec 0ms

Multi Core LINPACK

BRAIN > MHz

I don’t break any records, but I was able to get to the Top 20 Results! 🙂

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Noisy Beast is Coming!

You may remember that I built the World’s Fastest HTPC in 2011. I admit that it was quite noisy under load, but now I’m building a Noisy Beast!


The World’s fastest HTPC (2011)

2x Thermaltake A2018 – 46.5dBA @ 2800 RPM


Noisy Beast (2013)

2x Koolance FAN-12038HBK-184 – 59.0dBA @ 4000 RPM
(according to xbitlabs.com review – 76.5dBA @ 4000 RPM)

Noisy Beast - Build 1     Noisy Beast - Build 2

Noisy Beast - Build 3     Noisy Beast - Build 4

Noisy Beast - Build 5     Noisy Beast - Build 6

Full review is coming soon…
Still waiting for a new Corsair H100i cooling system.

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This week on First Ever!

New Testing Platform 2013 & Extreme Overclocking x3!
Overclocking an Intel Core i7-3770K (changed to i7-3930K) 🙂
Koolance FAN-12038HBK-184 fan runs on 4600RPM (211CFM?)
Yes, 2Amps fan connected directly to the 3-pin header connector!

New Testing Platform

Update:
I changed my mind, I decided to buy Intel Core i7-3930K and it does not require removing the IHS. All other elements remain unchanged: Coollaboratory Liquid Pro + Corsair Hydro Series H100i + 2x Koolance FAN-12038HBK-184.

…and some other:

  • Microsoft Security Essentials 4.2 for Windows 8 x86 (32-bit version)
  • Browser Wars 2013 – February & March
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