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Do you want to build your own powerful gaming PC, a powerful workstation, or a reliable office PC and have to no idea what to choose from the enormous range of hardware available? Read on for some handy tips on how to choose the right components. To make things even clearer, we will also show you some examples of PC systems built with hardware for specific purposes.

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What Hardware Do I Need to Build My Computer?

A full-featured PC consists of a wide range of hardware. Not sure which components you need? The basic PC parts are a motherboard equipped with a processor, RAM, and a graphics card. All this is then inserted into a PC case with a PSU, or you can buy a power supply unit separately. Then add a hard drive for your data. Depending on what you need, you can also purchase a number of additional accessories for your new computer.

Hardware - Motherboard

The motherboard is the most important part of any PC and basically the foundation for all the other components. Pay extra attention to the type of socket on the motherboard, as the socket determines what processors you will be able to install. Motherboards are available in several different formats:

  • eATX is designed for high-end PC systems with multiple graphics cards.
  • ATX is great for powerful gaming computers and workstations.
  • mATX is suitable for low-cost office PCs and multimedia computers.
  • Mini ITX is recommended for compact office and HTPC computers or Media Centre PCs - they are suitable for multimedia and light, non-demanding applications.

Hardware - Processor

The processor is the brain of the whole computer. Its job is to perform the necessary computational tasks. When building a PC using individual PC parts, you need to choose a processor socket compatible with your motherboard. Depending on the purpose of your new PC, you may also have to consider the number of CPU cores.

  • 2-core processors are suitable for low-cost office assemblies.
  • 4-core CPUs are good for playing games and working with graphics programs.
  • 6-8 core processors are designed for work with demanding applications and playing the latest, most technically challenging games.
  • 8 and multi-core processors are designed primarily for powerful server systems and dedicated computing machines.

Hardware - RAM

RAM is the kind of hardware that supports the processor with computing tasks. Its capacity determines how many operations the operating system is capable of performing at the same time. So, how much RAM do you need?

  • 4GB of RAM is the minimum baseline for most operating systems today, but we recommend that you get at least 8GB to accommodate various modern applications and tasks.
  • 8GB of memory is also sufficient for more powerful office and multimedia PCs.
  • 16GB or more should be your choice if you are buying a workstation or a gaming computer.

i

DDR3 or DDR4? For low-end or mid-range systems, we recommend installing DDR3 memory modules; if you want to have a powerful, high-performance PC, make sure to choose DDR4. Before buying, always check the type of memory supported by your motherboard and processor to avoid any unpleasant surprises later on.

Hardware - Graphics Card

The graphics card is a component that is a must for any gaming PC, but it can also be used in workstations, including powerful office and multimedia PCs. The cards can be divided into four categories, according to their designation:

  • Multimedia graphics cards can handle less demanding tasks, such as watching movies and streaming high-definition videos, playing casual games, and browsing image-heavy websites.
  • Gaming graphics cards are suitable for Full HD gaming or video editing.
  • High-end GPUs are the best what today’s GPU market can offer and can handle demanding 4K games.
  • Professional graphics cards are designed for powerful workstations and are optimised for CAD programs. Despite their high performance, they aren’t particularly well-suited for gaming.

You don’t need anything fancy if you plan to build a PC purely for standard office work. A graphics card integrated on the motherboard or processor will be enough.

Hardware - Hard Drive

Hard drives are PC parts used to store and read data. The main two categories you will encounter are a classic HDD and a fast SSD.

  • For office and multimedia PCs, you should get a classic hard drive that can accommodate a large amount of data. Compared to SSDs, this type is considerably slower.
  • Workstations and gaming PCs work well with a combination of a fast SSD for the operating system and applications and a large HDD to store your files.

High-capacity SSD are also available. Unfortunately, they are still quite expensive.

Hardware - Sound Card

Sound cards are PC parts designed for users who like to listen to music in high quality. In most cases, however, an integrated sound card will be enough - these integrated cards are usually 8-channel. Music and audio enthusiasts should consider getting a powerful sound card, suitable for work with various audio software and gaming.

PC Case

When choosing a PC case, you must choose one with an interior large enough to fit all the required PC parts. PC cases can be divided into several categories:

  • Big Tower - as the name suggests, this is the largest type, suitable for high-performance, high-end PC systems. These cases have plenty of room for future expansion, water cooling, and several fans.
  • Midi Tower - the case you want for your ATX motherboard. This type is suitable for most gaming PCs and workstations.
  • Mini Tower - suitable for mATX motherboards; ideal for low-cost office and multimedia PCs.
  • Mini ITX and HTPC - these are designed for MITX motherboards and are suitable for HTPC assemblies.

Some computer cases come with the PSU already included. With others, they need to be purchased separately.

Hardware - Power Supply

The PSU should be selected with respect to the overall performance of other hardware in the system you are building. You can use this  power supply calculator to calculate the power draw of your new PC. For a modest office system, you will need a PSU with a performance of up to 350W; if you are building a demanding gaming PC or a workstation, make sure to choose an 800W PSU or higher.

Hardware - Cooling

The cooling system maintains the optimum working temperature of hardware even when your PC is under a heavy load. Unless you are building a gaming PC or a powerful workstation, you can settle for the basic cooling you get with your other PC parts. For powerful workstations and high-end gaming computers, however, you should probably consider purchasing some extra powerful fans or even a water cooling system – the most effective PC cooling type available.

PC Assembly Examples

If you are looking for some tips and ideas about specific PC types, check out our custom-built Alza PC assemblies with different components.

  1. Alza GameBox are powerful PCs designed for passionate gamers.
  2. Professional Alza PC workstations are designed for work, streaming, or video editing.
  3. Reliable Alza Office PCs are business-oriented computers for everyday office work and for a reasonable price.
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4,335 Results
Fractal Design Define 7 Nano Black TG Light Tint - PC Case
5.0 2×
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Fractal Design Define 7 Nano Black TG Light Tint
PC Case - mITX (Mini ITX) and mDTX (Mini DTX), 1× 3,5" slot(s), 2× 2,5" slot(s), USB 2.0, USB 3.2 Gen 1, USB-C, Headphones, Microphone and USB 3.2 Gen 2, 1x120mm and 1x140mm, max. heat sink height: 167mm, max. graphics card length: 331mm, without power supply, side panel made of tempered glass
Discounted -1 %
115.90 € 117.90 €
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In stock 5 pcs at the supplier's
Order Code: CBd7n2
Kingston SO-DIMM 16GB DDR5 4800MHz CL40 - RAM
5.0 1×
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Kingston SO-DIMM 16GB DDR5 4800MHz CL40
RAM - 1x16GB, PC5-38400, CL4, voltage: 1V
52.90 €
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In stock > 5 pcs at the supplier's
Order Code: DEs16a48
Be quiet! SYSTEM POWER 10 850W - PC Power Supply
5.0 2×
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Be quiet! SYSTEM POWER 10 850W
PC Power Supply - 850W, ATX, 80 PLUS Gold, efficiency of 85,5%, 4 piece(s) PCIe (8-pin / 6+2-pin), 6 × SATA, active PFC, thermal speed control and power switch, 120mm fan, no modular, depth of 160mm
105.90 €
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In stock > 5 pcs at the supplier's
Order Code: BNsp10a6
Fractal Design CORE 2300 - PC Case
4.8 5×
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Fractal Design CORE 2300
PC Case - ATX, mATX (Micro ATX) and mITX (Mini ITX), 3× 3,5" slot(s), USB 2.0, USB 3.2 Gen 1, Headphones and Microphone, without power supply, side panel made of
54.90 €
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In stock > 5 pcs at the supplier's
Order Code: CB321k2f
MSI MAG CORELIQUID E240 White - Water Cooling
5.0 2×
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MSI MAG CORELIQUID E240 White
Water Cooling - complete closed set, for socket AM4 and AM5, 1150, 1151, 1155, 1156, 1200 and 1700, 2x120mm fan(s), max noise level of 32,5dB, max speed of 1800 RPM, RGB backlighting, dimensions (WxDxH): 277 x 119,2 x 27mm
New arrival
114.90 €
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In stock > 5 pcs at the supplier's
Order Code: EFmcle240w
Endorfy Navis F240 ARGB - Water Cooling
5.0 1×
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Endorfy Navis F240 ARGB
Water Cooling - complete closed set, for socket AM4 and AM5, 1150, 1151, 1155, 1156, 1200, 1700, 2011, 2011-3 and 2066, 2x120mm fan(s), max speed of 1800 RPM, RGB backlighting, dimensions (WxDxH): 275 x 120 x 28mm
96.90 €
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In stock > 5 pcs at the supplier's
Order Code: ENDnf240r
Be quiet! PURE POWER 11 700W - PC Power Supply
5.0 2×
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Be quiet! PURE POWER 11 700W
PC Power Supply - 700W, ATX, 80 PLUS Gold, efficiency of 92%, 4 × PCIe (8-pin), 6 × SATA, detachable cables, active PFC, thermal speed control and power switch, 120mm fan, no modular, depth of 86mm
102.90 €
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In stock 5 pcs at the supplier's
Order Code: BN295
Patriot Viper Venom RGB 32GB KIT DDR5 6000MHz CL36 - RAM
5.0 1×
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Patriot Viper Venom RGB 32GB KIT DDR5 6000MHz CL36
RAM - 2x16GB, PC5-48000, CL36-36-36-76, voltage: 1.25V, passive cooling, rgb lighting and XMP 3,0
183.90 €
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In stock > 5 pcs at the supplier's
Order Code: DP095b32b60
Fractal Design Meshify 2 Nano Black TG Dark Tint - PC Case
Variants
5.0 5×
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Fractal Design Meshify 2 Nano Black TG Dark Tint
PC Case - mITX (Mini ITX) and mDTX (Mini DTX), 1× 3,5" slot(s), 3× 2,5" slot(s), 4× 2.5"/3.5" slot(s), USB 3.2 Gen 1, USB-C, Headphones, Microphone and USB 3.2 Gen 2, 1x120mm and 1x140mm, max. heat sink height: 167mm, max. graphics card length: 331mm, without power supply, side panel made of tempered glass
114.90 €
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In stock > 5 pcs at the supplier's
Order Code: CBm2n1
ASROCK Radeon RX 7700 XT Phantom Gaming 12G OC - Graphics Card
5.0 1×
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ASROCK Radeon RX 7700 XT Phantom Gaming 12G OC
Graphics Card - 12GB GDDR6 (18000MHz), AMD Radeon RDNA 3.0 (Navi 32, 1900 MHz), Boost 2599 MHz, PCI Express x16 4.0 , 192Bit, HDMI 2.1 and DisplayPort 2.1
479.90 €
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In stock > 5 pcs at the supplier's
Order Code: ASr7700xpg2
WD Green SSD 480GB M.2 - SSD
5.0 1×
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WD Green SSD 480GB M.2
SSD SATA III
Great price
51.90 € Save 2.77 €
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In stock > 5 pcs at the supplier's
Order Code: FW137c4c
Fractal Design Aspect 12 RGB PWM Black Frame - PC Fan
4.4 8×
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Fractal Design Aspect 12 RGB PWM Black Frame
PC Fan - size: 120 × 25mm, 500 RPM - 2000 RPM, 12 V, maximum noise level of up to 33,2 dB, 4pin PWM, RGB backlighting, ARGB backlight (5V) and PWM
18.90 €
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In stock > 10 pcs at the supplier's
Order Code: CB322a12rpb
Patriot Viper Elite 5 32GB KIT DDR5 7000MHz CL38 White RGB - RAM
5.0 1×
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Patriot Viper Elite 5 32GB KIT DDR5 7000MHz CL38 White RGB
RAM - 2x16GB, PC5-56000, CL38-48-48-88, voltage: 1.45V, passive cooling, rgb lighting, XMP 3,0 and AMD EXPO
147.90 €
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In stock 5 pcs at the supplier's
Order Code: DP096b32a70
Patriot Viper Venom 64GB KIT DDR5 6000MHz CL36 - RAM
5.0 1×
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Patriot Viper Venom 64GB KIT DDR5 6000MHz CL36
RAM - 2x32GB, PC5-48000, CL36-36-36-76, voltage: 1.35V, passive cooling and XMP 3,0
227.90 €
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In stock 5 pcs at the supplier's
Order Code: DP095b64a60
Fortron FSP350-50TAC - PC Power Supply
5.0 1×
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Fortron FSP350-50TAC
PC Power Supply - 350W, TFX, 80 PLUS Bronze, efficiency of 85%, 3 × SATA, thermal speed control and DC-DC converters, 80mm fan, depth of 175mm
49.90 €
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In stock > 5 pcs at the supplier's
Order Code: UDfsp350t
ARCTIC Alpine 23 CO - CPU Cooler
3.8 8×
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ARCTIC Alpine 23 CO
CPU Cooler - socket AM4 and AM5, maximum noise level of 22,5 dB, maximum speed of 2000 RPM, height of 65mm, PWM and CO (Continuous operation)
8.69 €
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In stock 1 pcs at the supplier's
Order Code: CBa23c
Kingston FURY 8GB DDR5 5200MHz CL36 Beast EXPO - RAM
5.0 2×
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Kingston FURY 8GB DDR5 5200MHz CL36 Beast EXPO
RAM - 1x8GB, PC5-41600, CL36-40-40, voltage: 1V, passive cooling and AMD EXPO
35.90 €
Buy
In stock > 5 pcs at the supplier's
Order Code: DEb8a52e
ARCTIC S4028-6K - PC Fan
5.0 2×
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ARCTIC S4028-6K
PC Fan - size: 40 × 28mm, 250 RPM - 6000 RPM, 12 V, 4pin PWM, PWM
8.29 €
Buy
In stock > 5 pcs at the supplier's
Order Code: CBs4028a1
Fortron FSP250-50TAC - PC Power Supply
4.5 2×
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Fortron FSP250-50TAC
PC Power Supply - 250W, TFX, 80 PLUS Bronze, efficiency of 85%, 2 × SATA, thermal speed control and DC-DC converters, 80mm fan, depth of 175mm
49.90 €
Buy
In stock > 5 pcs at the supplier's
Order Code: UDfsp250t
Fractal Design Aspect 14 White - PC Fan
5.0 1×
Add to PC configurator
Fractal Design Aspect 14 White
PC Fan - size: 140 × 25mm, 1000 RPM, 12 V, maximum noise level of up to 19,5 dB, 3pin
14.90 €
Buy
In stock > 10 pcs at the supplier's
Order Code: CB322a14w
Fractal Design Aspect 12 RGB Black Frame - PC Fan
4.0 2×
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Fractal Design Aspect 12 RGB Black Frame
PC Fan - size: 120 × 25mm, 1200 RPM - 1200 RPM, 12 V, maximum noise level of up to 18,3 dB, 3pin, RGB backlighting, ARGB backlight (5V)
15.90 €
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In stock > 10 pcs at the supplier's
Order Code: CB322a12rb
Kingston FURY 4GB DDR3 1866MHz CL10 Beast Black - RAM
5.0 1×
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Kingston FURY 4GB DDR3 1866MHz CL10 Beast Black
RAM - 1x4GB, PC3-14900, CL10, voltage: 1.5V, passive cooling
34.90 €
Buy
In stock 3 pcs at the supplier's
Order Code: DDb4a18bl
Fractal Design Aspect 14 RGB Black Frame - PC Fan
5.0 2×
Add to PC configurator
Fractal Design Aspect 14 RGB Black Frame
PC Fan - size: 140 × 25mm, 1000 RPM, 12 V, maximum noise level of up to 19,5 dB, 3pin, RGB backlighting, ARGB backlight (5V)
16.90 €
Buy
In stock > 5 pcs at the supplier's
Order Code: CB322a14rw
Fractal Design Aspect 14 RGB Black Frame (3-pack) - PC Fan
5.0 1×
Add to PC configurator
Fractal Design Aspect 14 RGB Black Frame (3-pack)
PC Fan - size: 140 × 25mm, 1000 RPM - 1000 RPM, 12 V, maximum noise level of up to 19,5 dB, 3pin, RGB backlighting, ARGB backlight (5V)
42.90 €
Buy
In stock > 5 pcs at the supplier's
Order Code: CB322a12rpb3

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