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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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4,177 Results
GIGABYTE GeForce RTX 4060 EAGLE OC 8G - Graphics Card
4.4 11×
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GIGABYTE GeForce RTX 4060 EAGLE OC 8G
Graphics Card - 8GB GDDR6 (17000MHz), NVIDIA GeForce Ada Lovelace (AD107, 1830 MHz), Boost 2505 MHz, PCI Express x16 4.0 , 128Bit, DisplayPort 1.4 and HDMI 2.1
333.90 €
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In stock > 5 pcs
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Order Code: EGr4060e2
MSI MAG Z790 TOMAHAWK WIFI - Motherboard
4.6 39×
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MSI MAG Z790 TOMAHAWK WIFI
Motherboard - Intel Z790, Intel LGA1700 socket, PCI Express 3.0, PCI Express 4.0, 2× PCIe x16, 1× PCIe x1, 4× DDR5 7200MHz (OC), 7× SATA III, 4× M.2, USB 3.2 Gen 2, RJ-45 (LAN) 2,5Gbps, WiFi, Bluetooth, 7.1 sound card channel(s), form factor: ATX
Discounted -9 %
209.90 € 231.90 €
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Order Code: AAz790mtw
GIGABYTE GeForce RTX 3060 GAMING OC 12G - Graphics Card
4.9 42×
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GIGABYTE GeForce RTX 3060 GAMING OC 12G
Graphics Card - 12GB GDDR6 (15000MHz), NVIDIA GeForce Ampere (GA106, 1320 MHz), Boost 1837 MHz, PCI Express x16 4.0 , 192Bit, DisplayPort 1.4a and HDMI 2.1
317.90 €
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Order Code: EGr3060lg2
SilverStone Strider Essential 80Plus ST60F-ES230 600W - PC Power Supply
4.9 89×
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SilverStone Strider Essential 80Plus ST60F-ES230 600W
PC Power Supply - 600W, ATX, 80 PLUS, efficiency of 85%, 2 piece(s) PCIe (8-pin / 6+2-pin), 4 × SATA, active PFC, thermal speed control and power switch, 120mm fan, depth of 140mm
52.90 €
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Order Code: UB090k2c
MSI GeForce RTX 4080 SUPER 16G GAMING X SLIM - Graphics Card
Free delivery
to Alza branch
4.0 4×
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MSI GeForce RTX 4080 SUPER 16G GAMING X SLIM
Graphics Card - 16GB GDDR6X (23000MHz), NVIDIA GeForce Ada Lovelace (AD103, 2205 MHz), Boost 2625 MHz, PCI Express x16 4.0 , 256Bit, DisplayPort 1.4a and HDMI 2.1a
Discounted -5 %
1,139 € 1,199 €
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In stock
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Order Code: EFr4080sgxs
MSI B450M-A PRO MAX - Motherboard
4.3 46×
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MSI B450M-A PRO MAX
Motherboard - AMD B450, AMD AM4 socket, PCI Express 3.0, 1× PCIe x16, 1× PCIe x1, 2× DDR4 4133MHz (OC), 4× SATA III, 1× M.2, RJ-45 (LAN) 1Gbps, HDMI, DVI, 8ch audio, form factor: mATX (Micro ATX)
Great price
54.90 € Save 1.85 €
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Order Code: AA393e9g
Patriot 32GB KIT DDR4 2666MHz CL19 Signature Premium - RAM
4.7 23×
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Patriot 32GB KIT DDR4 2666MHz CL19 Signature Premium
RAM - 2x16GB, PC4-21300, CL19-19-19-43, voltage: 1.2V, passive cooling and Unbuffered
Great price
65.90 € Save 3.86 €
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Order Code: DP079k2
Kingston FURY SO-DIMM 32GB KIT DDR4 3200MHz CL20 Impact - RAM
4.9 153×
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Kingston FURY SO-DIMM 32GB KIT DDR4 3200MHz CL20 Impact
RAM - 2x16GB, PC4-25600, CL20, voltage: 1.2V, XMP 2,0
Discounted -8 %
67.90 € 73.90 €
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Order Code: DEi32b322
SilverStone Strider Essential 80Plus ST70F-ES230 700W - PC Power Supply
4.8 75×
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SilverStone Strider Essential 80Plus ST70F-ES230 700W
PC Power Supply - 700W, ATX, 80 PLUS, efficiency of 85%, 4 piece(s) PCIe (8-pin / 6+2-pin), 4 × SATA, active PFC, thermal speed control and power switch, 120mm fan, depth of 140mm
72.90 €
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Order Code: UB090k2d
Noctua NF-A14 industrialPPC-3000 PWM - PC Fan
4.8 38×
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Noctua NF-A14 industrialPPC-3000 PWM
PC Fan - size: 140 × 25mm, 800 RPM - 3000 RPM, 12 V, maximum noise level of up to 41,3 dB, 4pin PWM, PWM
30.90 €
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Order Code: CT255s7
ASUS DUAL GeForce GTX 1650 4G OC GDDR6 EVO - Graphics Card
4.7 7×
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ASUS DUAL GeForce GTX 1650 4G OC GDDR6 EVO
Graphics Card - 4GB GDDR6 (12000MHz), NVIDIA GeForce Turing (TU117, 1410 MHz), Boost 1785 MHz, PCI Express x16 3.0, 128Bit, DisplayPort 1.4a, DVI-D and HDMI 2.0b
Discounted -15 %
139.90 € 164.90 €
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Order Code: ECg1650d4e
MSI GeForce RTX 4070 Ti VENTUS 2X 12G OC - Graphics Card
5.0 2×
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MSI GeForce RTX 4070 Ti VENTUS 2X 12G OC
Graphics Card - 12GB GDDR6X (21000MHz), NVIDIA GeForce Ada Lovelace (AD104, 2310 MHz), Boost 2655 MHz, PCI Express x16 4.0 , 192Bit, DisplayPort 1.4a and HDMI 2.1a
Discounted -16 %
719 € 859.90 €
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In stock
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Order Code: EFr4070tv2x2
Samsung 870 EVO 4TB - SSD
4.9 1001×
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Samsung 870 EVO 4TB
SSD 2,5", SATA III, TLC (Triple-Level Cell), theoretical lifespan 2400TBW
368.90 €
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In stock > 5 pcs
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Order Code: SAS013g7
WD Gold 10TB - Hard Drive
4.5 99×
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WD Gold 10TB
Hard Drive - 3,5", SATA III, 256MB cache, 7200RPM, For servers, Data storage and Internal
274.90 €
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In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: FW237c7a
AMD Ryzen 5 5600 - CPU
4.9 217×
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AMD Ryzen 5 5600
CPU - 6-core, 12 threads, 3.5GHz (TDP 65W), Boost 4.4 GHz, 32MB L3 cache, Without integrated graphics chip, socket AMD AM4 , Vermeer, box cooler, AMD Wraith Stealth
Great price
127.90 € Save 6.03 €
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In stock > 5 pcs
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Order Code: BD740h22b
EVOLVEO Pulse 400W Black - PC Power Supply
4.5 267×
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EVOLVEO Pulse 400W Black
PC Power Supply - 400W, ATX, 1 × PCIe (6-pin), 2 × SATA, passive PFC, thermal speed control and power switch, 120mm fan, depth of 143mm
Great price
30.90 €
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In stock > 5 pcs
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Order Code: UE103e
Seagate Exos X18 16TB 512e/4kn SATA - Hard Drive
4.6 36×
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Seagate Exos X18 16TB 512e/4kn SATA
Hard Drive - 3,5", SATA III, 256MB cache, 7200RPM, For computers, For servers, Data storage and Internal
Great price
296.90 € Save 11.75 €
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In stock > 5 pcs
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Order Code: FX078i9g
Seagate BarraCuda Pro Laptop 1TB - Hard Drive
4.7 68×
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Seagate BarraCuda Pro Laptop 1TB
Hard Drive - 2,5", SATA III, 128MB cache, 7200RPM, For computers, For laptops, Suitable for playing games and Internal
Great price
67.90 € Save 3.44 €
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In stock 4 pcs
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Order Code: FX196d23
WD Red Pro 6TB - Hard Drive
4.4 62×
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WD Red Pro 6TB
Hard Drive - 3,5", SATA III, 256MB cache, 7200RPM, For computers, Data storage and Internal
Great price
216.90 € Save 5.52 €
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In stock > 5 pcs
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Order Code: FW236b7c
ASUS TUF GAMING Z790-PLUS WIFI - Motherboard
4.6 36×
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ASUS TUF GAMING Z790-PLUS WIFI
Motherboard - Intel Z790, Intel LGA1700 socket, 2× PCIe x16, 1× PCIe x4, 2× PCIe x1, 4× DDR5 7200MHz (OC), 4× SATA III, 4× M.2, USB 3.2 Gen 2, RJ-45 (LAN) 2,5Gbps, WiFi, Bluetooth, 8ch audio, form factor: ATX
Great price
309.90 € Save 14.29 €
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In stock > 5 pcs
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Order Code: ACz790tpw
SAPPHIRE NITRO+ AMD Radeon RX 7900 XTX Vapor-X 24G - Graphics Card Free delivery
to Alza branch
4.9 50×
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SAPPHIRE NITRO+ AMD Radeon RX 7900 XTX Vapor-X 24G
Graphics Card - 24GB GDDR6 (20000MHz), AMD Radeon RDNA 3.0 (Navi 31, 1900 MHz), Boost 2680 MHz, PCI Express x16 4.0 , 384Bit, HDMI 2.1 and DisplayPort 2.1
1,189 €
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In stock 4 pcs
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Info
Order Code: ELrx7900xtx20n
AMD Ryzen 5 5600G - CPU
4.9 142×
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AMD Ryzen 5 5600G
CPU – 6-core, 12 threads, 3.9GHz (TDP 65W), Boost 4.4GHz, 16MB L3 cache, AMD Radeon Graphics 1900MHz, AMD AM4 socket, box cooler, Wraith Stealth
Great price
132.90 € Save 6.20 €
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In stock > 5 pcs
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Order Code: BD740h24a
GIGABYTE GeForce GT 710 2GB - Graphics Card
4.7 42×
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GIGABYTE GeForce GT 710 2GB
Graphics Card - 2GB GDDR5 (5010MHz), NVIDIA GeForce Keppler 2.0 (GK208B, 954 MHz), PCI Express x8, 64Bit, DVI-D
56.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EGG710a2
EVOLVEO Pulse 450W Black - PC Power Supply
4.4 273×
Add to PC configurator
EVOLVEO Pulse 450W Black
PC Power Supply - 450W, ATX, 1 piece(s) PCIe (8-pin / 6+2-pin), 2 × SATA, passive PFC, thermal speed control and power switch, 120mm fan
Great price
32.90 € Save 2.30 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: UE103g
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