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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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Seagate BarraCuda Laptop 4TB - Hard Drive
4.7 468×
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Seagate BarraCuda Laptop 4TB
Hard Drive - 2,5", SATA III, 128MB cache, 5400RPM, For computers, For laptops and Internal
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120.90 € Save 11.12 €
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In stock > 5 pcs
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ASUS TUF GAMING B550-PLUS - Motherboard
4.8 114×
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ASUS TUF GAMING B550-PLUS
Motherboard - AMD B550, AMD AM4 socket, PCI Express 4.0, 2× PCIe x16, 3× PCIe x1, 4× DDR4 4600MHz (OC), 6× SATA III, 2× M.2, USB 3.2 Gen 2, USB-C, RJ-45 (LAN) 2,5Gbps, HDMI, DisplayPort, 8ch audio, form factor: ATX
121.90 €
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ARCTIC Freezer 34 eSports DUO White - CPU Cooler
Variants
4.7 329×
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ARCTIC Freezer 34 eSports DUO White
CPU Cooler - socket AM4 and AM5, 1150, 1151, 1155, 1156, 1200, 1700, 2011-3 and 2066, 210 W, 2x120mm fan, 4× heatpipe(s), maximum noise level of 24,4 dB, maximum speed of 2100 RPM, height of 157mm
44.90 €
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Order Code: CB129b2a
Seasonic Focus GX 850 Gold - PC Power Supply
4.9 169×
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Seasonic Focus GX 850 Gold
PC Power Supply - 850W, ATX, 80 PLUS Gold, efficiency of 90%, 6 piece(s) PCIe (8-pin / 6+2-pin), detachable cables and power switch, 120mm fan, full modular, depth of 150mm
125.90 €
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Order Code: UE314gx85v2
Seagate BarraCuda 6TB - Hard Drive
4.7 1318×
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Seagate BarraCuda 6TB
Hard Drive - 3,5", SATA III, 256MB cache, 5400RPM, For computers and Internal
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141.90 € Save 15.09 €
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Crucial SO-DIMM 16GB DDR4 2400MHz CL17 Dual Ranked - RAM
5.0 129×
Crucial SO-DIMM 16GB DDR4 2400MHz CL17 Dual Ranked
RAM - 1x16GB, PC4-19200, CL17-17-17, voltage: 1.2V, Unbuffered
35.90 €
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Order Code: CR112d
Patriot SO-DIMM 8GB DDR3 1600MHz CL11 Signature Line - RAM
4.9 179×
Patriot SO-DIMM 8GB DDR3 1600MHz CL11 Signature Line
RAM - 1 x 8 GB, PC3-12800, voltage: 1.35V, Unbuffered
Amazing Deal
18.90 € Save 2.09 €
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Order Code: DP938c2
ADATA Ultimate SU650 SSD 120GB - SSD
4.7 379×
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ADATA Ultimate SU650 SSD 120GB
SSD 2,5", SATA III, TLC (Triple-Level Cell), theoretical lifespan 70TBW
Amazing Deal
14.90 € Save 4.94 €
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Order Code: DU102n2a1
Patriot 8GB DDR3 1600MHz CL11 - RAM
4.7 125×
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Patriot 8GB DDR3 1600MHz CL11
RAM - 1x8GB, PC3-12800, CL11, voltage: 1.5V, passive cooling and Unbuffered
Great price
21.90 €
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XFX Speedster SWFT 210 AMD Radeon RX 6600 Core - Graphics Card
4.8 69×
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XFX Speedster SWFT 210 AMD Radeon RX 6600 Core
Graphics Card - 8GB GDDR6 (14000MHz), AMD Radeon RDNA 2.0 (Navi 23, 2200 MHz), Boost 2491 MHz, PCI Express x8 4.0, 128Bit, DisplayPort 1.4a and HDMI 2.1
196.90 €
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Order Code: XFXr6600ss1
Seagate BarraCuda Laptop 2TB - Hard Drive
4.7 468×
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Seagate BarraCuda Laptop 2TB
Hard Drive - 2,5", SATA III, 128MB cache, 5400RPM, For computers, For laptops and Internal
Great price
76.90 € Save 5.85 €
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GIGABYTE GeForce RTX 4070 SUPER WINDFORCE OC 12G - Graphics Card
5.0 13×
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GIGABYTE GeForce RTX 4070 SUPER WINDFORCE OC 12G
Graphics Card - 12GB GDDR6X (21000MHz), NVIDIA GeForce Ada Lovelace (AD104, 1980 MHz), Boost 2505 MHz, PCI Express x16 4.0 , 192Bit, DisplayPort 1.4a and HDMI 2.1a
659.90 €
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Order Code: EGr4070swi2
Patriot P300 256GB - SSD
4.5 24×
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Patriot P300 256GB
SSD M,2 (PCIe 3,0 4x NVMe) , TLC (Triple-Level Cell), theoretical lifespan 80TBW
Amazing Deal
22.90 € Save 8.11 €
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Order Code: DP828a2
Patriot 4GB DDR3 1333MHz CL11 Signature Line (8x512) - RAM
4.7 124×
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Patriot 4GB DDR3 1333MHz CL11 Signature Line (8x512)
RAM - 1x4GB, PC3-12800, CL11, voltage: 1.5V, Unbuffered
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11.90 € Save 3.15 €
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Order Code: DP061i1
GIGABYTE P450B - PC Power Supply
4.7 233×
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GIGABYTE P450B
PC Power Supply - 450W, ATX, 80 PLUS Bronze, efficiency of 85%, 2 piece(s) PCIe (8-pin / 6+2-pin), 6 × SATA, active PFC, thermal speed control and power switch, 120mm fan, no modular, depth of 140mm
35.90 €
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Order Code: GBZ004
Crucial SO-DIMM 8GB DDR4 3200MHz CL22 - RAM
4.9 170×
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Crucial SO-DIMM 8GB DDR4 3200MHz CL22
RAM - 1x8GB, PC4-25600, CL22-22-22, voltage: 1.2V, Unbuffered
Great price
19.90 € Save 0.79 €
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Order Code: CR113f1e
Crucial MX500 500GB SSD - SSD
4.9 660×
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Crucial MX500 500GB SSD
SSD 2,5", SATA III, TLC (Triple-Level Cell), theoretical lifespan 180TBW
Great price
52.90 €
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Order Code: CR006z6b
G.SKILL 16GB DDR4 3200MHz CL16 Gaming series Aegis - RAM
4.8 99×
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G.SKILL 16GB DDR4 3200MHz CL16 Gaming series Aegis
RAM - 2x8GB, PC4-25600, CL16-18-18-38, voltage: 1.35V, Unbuffered and XMP 2,0
37.90 €
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Order Code: GSKILL0041
Noctua NH-D15 - CPU Cooler
4.9 141×
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Noctua NH-D15
CPU Cooler - socket AM4 and AM5, 1150, 1151, 1155, 1156, 1200, 1700, 2011, 2011-3 and 2066, 2x140mm fan, 6× heatpipe(s), maximum noise level of 24,6 dB, maximum speed of 1500 RPM, height of 170mm, PWM
105.90 €
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Order Code: CT255x3
G.SKILL 32GB DDR4 3200MHz CL16 Gaming series Aegis - RAM
4.9 47×
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G.SKILL 32GB DDR4 3200MHz CL16 Gaming series Aegis
RAM - 2x16GB, PC4-25600, CL16-18-18-38, voltage: 1.35V, Unbuffered and XMP 2,0
66.90 €
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Order Code: GSKILL0042
ADATA Ultimate SU650 SSD 480GB - SSD
4.7 379×
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ADATA Ultimate SU650 SSD 480GB
SSD 2,5", SATA III, TLC (Triple-Level Cell), theoretical lifespan 280TBW
Amazing Deal
38.90 € Save 4.60 €
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Order Code: DU102n2c1
Apacer AS2280P4 512GB - SSD
4.8 100×
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Apacer AS2280P4 512GB
SSD M,2 (PCIe 3,0 4x NVMe) , TLC (Triple-Level Cell), theoretical lifespan 400TBW
35.90 €
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Order Code: APA360b31
AMD Ryzen 5 7600X - CPU
4.8 59×
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AMD Ryzen 5 7600X
CPU - 6-core, 12 threads, 4.7GHz (TDP 105W), Turboboost 5.3GHz, Boost 5.3 GHz, 32MB L3 cache, AMD Radeon Graphics 2200MHz, socket AMD AM5, Raphael, cooler not included
227.90 €
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Order Code: BD750k5
Patriot P300 128GB - SSD
4.7 34×
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Patriot P300 128GB
SSD M,2 (PCIe 3,0 4x NVMe) , TLC (Triple-Level Cell), theoretical lifespan 40TBW
Amazing Deal
15.90 € Save 5.18 €
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In stock > 10 pcs
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Order Code: DP828a1
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