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Quiet PC Leviathan Z4 ATX Gaming PC

A top quality fully-built quiet gaming PC, using a Zen 4 AMD Ryzen CPU and a X670 gaming motherboard. This formidable machine doesn’t compromise on performance and comes with a two-year fully inclusive warranty.

Features

  1. Fully built quiet PC system tailored for high performance gaming
  2. Utilises AMD’s latest AM5 processors and a X670 motherboard
  3. Selected quiet components offer value and minimal running noise when idle
  4. We build to your specification and deliver within 7 days
  5. Clean Build™ Promise and original OS+drivers supplied on DVDs
  6. Two year warranty with open-case policy

The Leviathan Z4 ATX Gaming PC is the perfect choice for customers looking for a large, yet elegant and quiet PC while still being able to provide enough FPS for the most demanding of games. The PC is built around your choice of ATX chassis and no natter which you choose they all offer excellent cooling at low noise levels, as well as look fantastic.

Ryzen 7000 Series

At the heart of the PC is a AMD AM5 7000 series processor powered by the new ‘Zen 4’ architecture, ushering in the next era of high performance for gamers, enthusiasts, and content creators thanks to the featuring up to 16 cores and 32 threads. Compared to the previous generation, AMD Ryzen 7950X processor enables single-core performance improvement of up to +29%, up to 45% more compute for content creators, up to 15% faster gaming performance in select titles, and up to 27% better performance-per-watt.

To give you an idea of much of an improvement the 7000 series is over the 5000 series processors, take a look at the table below that shows some PassMark CPU Benchmarks, the higher the number the better the performance the processors offers.

7000 Series Ryzen 5 7600X Ryzen 7 7800X Ryzen 9 7900X Ryzen 9 7950X
PassMark score 28,626 36,540 51,401 64,391
5000 Series Ryzen 5 5600X Ryzen 7 5800X Ryzen 9 5900X Ryzen 9 5950X
PassMark score 21,965 28,136 39,314 45,867

The figures above are as of October 2022. They do change over time.

The best quiet / performance balance

Any air-cooled PC will always be a compromise between quietness (arising from careful cooling design) and performance (which produces heat). This situation affects gamers even more than most because of course, the latest and greatest processors and 3D graphics cards tend to be the ones which run the hottest and which have the loudest fans on them.

We’ve done a lot of development work in this area to bring you a fully built high performance PC which we think offers the best of both worlds - virtually silent running (especially when the PC isn’t being used for gaming), and extraordinary gaming performance with great cooling design which gives total safety and reliability for your precious CPU and GPU.

Large selection of cases available

As already mentioned we have a number of cases that are available in the configurator below. We have only added cases to this list that suit a gaming PC. They all feature a windowed side panel and many of them also including RGB fans and lightstrips. For more information on each case, please click the ‘?’ after product on the configurator.

Motherboard Features and Options

This particular computer has an option of two motherboards, an ASRock B650 or an ASUS X670. Both motherboards are an excellent choice for this PC and both feature PCIe 5.0 speeds for the primary M.2 port (up to 128Gb/s), but if you require a few more USB 3.2 Gen ports, built-in Wi-Fi and Bluetooth, and PCIe 5.0 expansion slot, the X670 motherboard might be for you.

ASRock B650 ASUS X670
M.2 ports 3 4
Rear USB 3.2 Gen2 ports 2 5
PCIe Expansion slot PCIe 4.0 PCIe 5.0
Ethernet Controller (LAN) Dragon 2.5Gb Ethernet Realtek 2.5Gb Ethernet
Built-in Wi-Fi and BT None Wi-Fi 6E and BT v5.2

Graphics card Options

As you can see from the configurator below there is a vast choice of graphics card available, including up to Nvidia’s RTX 4090! After each graphics card you’ll notice it states its width and the minimum wattage required power supply. You may also need to omit some expansion cards depending on the width of the graphics card and motherboard selected. If there are any issues with your configuration we will be in touch with our recommendations, alternatively feel free to give us a call and one of our team will be happy to talk through the configuration before purchase.

Storage considerations

When specifying your new PC’s storage options using our system configurator below, you will be offered a choice of drives which vary by price and capacity. There are two primary types of storage. A conventional hard disk drive (HDD) offers huge storage capacity for a low price, but it won’t be especially fast and it will generate a certain amount of running noise since it contains a constantly-rotating spindle. A solid state (SSD) or a M2 drive on the other hand, offer tremendous speed and absolutely silent operation, but they cost more than an HDD for any given capacity.

So if you need a lot of storage space (for videos or large quantities of digital photos for example), then we would recommend an HDD. On the other hand, if you prefer silence and speed (especially boot-up speed), then an SSD or M2 drive would be a better choice. Of course you can have more than one drive, so you could have the best of both worlds by choosing one of each! We recommend that customers chose an SSD or M2 drive as a boot drive that contains the operating system and important programs and a conventional HDD to store other data, but remember that if you intend to have a totally silent PC you might want to forgo the HDDs all together as they will make some noise due to their moving parts.

Clean Build™ Promise

The price of many pre-built PCs these days is often supported by cash kickbacks from software companies who pay hardware manufacturers to pre-install limited or trial versions of their software and then hope that the customer pays to upgrade to the full version. The downside to this approach is that the new PC comes pre-loaded with a lot of “junkware” which bloats the operating system and can cause severe performance degradation.

Here at Quiet PC we believe that customers have every right to expect the best possible performance from a brand new PC, so every system we build comes with our Clean Build™ promise. We install the operating system (if you order one), motherboard drivers, OS updates and Windows Security - that’s it. You won’t be pestered by pop-ups and nag screens and you can get on with using your new PC immediately without having to uninstall lots of junkware first. Your new machine will boot in super-quick time and will stay running quickly for many months and years to come.

Free hardware support and fully inclusive warranty

We offer free hardware technical support for as long as you own the machine. This support covers any hardware query or problem, including advice on maintenance and upgrades. We regret we can’t offer software support or training so we would recommend contacting the software vendor in this instance.

Our hardware warranty runs for at least two years and is “collect and return” meaning that you don’t need to worry about getting the machine back to us - we will instruct our courier to collect it from you on a day of your choosing, then after we have checked and repaired it we will send it back to you by express courier at our expense. In addition, unlike many other PC suppliers, we have an “open-case” policy which means you are free to open the machine and perform your own minor modifications or upgrades without worrying that your warranty might be affected.

Leviathan Z4 ATX Gaming PC

Quiet PC Leviathan Z4 ATX Gaming PC

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Black Diamond ATX Chassis

Case

More Details€53.32
More Details€86.69
More Details€86.69
More Details€91.51
More Details€95.08
More Details€95.08
More Details€95.08
More Details€96.38
More Details€96.38
More Details€118.90
More Details€148.60
More Details€170.88
More Details€188.91
More Details€194.98
More Details€235.10
More Details€252.64
More Details€269.04
B650 PRO RS AM5 ATX Motherboard

Motherboard

More Details€235.48
More Details€303.85
Ryzen 5 7600X 4.7GHz 6C/12T 105W 32MB Cache AM5 CPU

Processor

More Details€347.44
More Details€435.29
More Details€596.61
More Details€734.71
DDR5 16GB (2x8GB) 4800MHz Memory

Memory

More Details€92.95
More Details€139.35
More Details€324.01
NH-U12S REDUX High Performance CPU Cooler

CPU cooler

More Details€48.17
More Details€67.45
More Details€77.10
More Details€77.10
More Details€86.74
More Details€106.03
More Details€106.03
More Details€115.67

CPU Cooler Accessories

The options below are purely cosmetic. They will not improve or reduce performance in any way.

€0.00
More Details€16.29
More Details€17.31
More Details€17.31

Thermal Compound Upgrade

Choose an option below and we will use the selected thermal compound wherever it is required. Alternatively leave none selected and we will apply the thermal paste supplied.

€0.00
More Details€9.26
More Details€11.53
GeForce GTX 1630 DUAL 4GB GDDR6 Semi-Fanless Graphics Card

Graphics card

To help configure the PC correctly, in brackets after every graphics card you’ll see its width (in slots) and the minimum wattage power supply.

€0.00
More Details€165.57
More Details€176.66
More Details€201.64
More Details€271.74
More Details€318.71
More Details€322.36
More Details€351.49
More Details€381.57
More Details€467.11
More Details€547.54
More Details€577.62
More Details€693.52
More Details€1,361.21
More Details€1,927.64
TUF 550B Semi-Fanless 550W 80Plus Bronze PSU

Power supply

More Details€69.72
More Details€97.58
More Details€129.60
More Details€132.98
More Details€161.71
More Details€190.35
IEC C13 UK Mains Power Cord, 1.8m (Type G)

Mains cord

Please note, we are only able to supply UK or EU mains cords. If you reside outside of the UK or EU, you will need to supply your own cable.

More Details€5.11
More Details€5.11
More Details€5.11
980 PRO 500GB Elpis M.2 PCIe 4.0 NVMe SSD

M.2 drive

The figures in brackets show the read and write speeds (in MB/s) of the drive.

€0.00
More Details€61.71
More Details€72.32
More Details€83.03
More Details€102.32
More Details€124.20
More Details€160.65
More Details€210.80
More Details€230.95
More Details€286.31

M.2 drive 2

The figures in brackets show the read and write speeds (in MB/s) of the drive.

€0.00
More Details€61.71
More Details€72.32
More Details€83.03
More Details€102.32
More Details€124.20
More Details€160.65
More Details€210.80
More Details€230.95
More Details€286.31

M.2 drive 3

The figures in brackets show the read and write speeds (in MB/s) of the drive.

€0.00
More Details€61.71
More Details€72.32
More Details€83.03
More Details€102.32
More Details€124.20
More Details€160.65
More Details€210.80
More Details€230.95
More Details€286.31

M.2 drive 4

The figures in brackets show the read and write speeds (in MB/s) of the drive.

€0.00
More Details€61.71
More Details€83.03
More Details€102.32
More Details€210.80

Data drive

Please note, selecting a HDD or SSHD will generate some noise as they contain moving parts. Choose a SSD for total silence.

€0.00
More Details€40.50
More Details€65.67
More Details€69.43
More Details€109.16
More Details€148.70
More Details€174.73
More Details€313.68
More Details€631.61

Data drive 2

Please note, selecting a HDD or SSHD will generate some noise as they contain moving parts. Choose a SSD for total silence.

€0.00
More Details€40.50
More Details€65.67
More Details€69.43
More Details€109.16
More Details€148.70
More Details€174.73
More Details€313.68
More Details€631.61

Data drive 3

Please note, selecting a HDD or SSHD will generate some noise as they contain moving parts. Choose a SSD for total silence.

€0.00
More Details€39.05
More Details€40.50
More Details€47.54
More Details€65.67
More Details€69.43
More Details€83.41
More Details€109.16
More Details€132.40
More Details€148.70
More Details€166.83
More Details€174.73
More Details€231.81
More Details€313.68
More Details€631.61

Data drive 4

Please note, selecting a HDD or SSHD will generate some noise as they contain moving parts. Choose a SSD for total silence.

€0.00
More Details€39.05
More Details€40.50
More Details€47.54
More Details€65.67
More Details€69.43
More Details€83.41
More Details€109.16
More Details€132.40
More Details€148.70
More Details€166.83
More Details€174.73
More Details€231.81
More Details€313.68
More Details€631.61

External USB optical drive

€0.00
More Details€30.66
More Details€32.49

Internal USB 3.0 card

€0.00
More Details€29.60
Windows 11 Home 64-bit OEM DVD

Operating system

€0.00
More Details€114.65
More Details€152.17
Windows Backup 32GB Pendrive - restores to factory defaults

Backup

Select “Use Microsoft DVD media” to receive a DVD of the Windows OS only. The “Backup Pendrive” provides an image of your system which includes drivers for the PC (highly recommended). Instructions here. Please note, that a pendrive can only be purchased along with a copy of Windows. It is not available separately.

€0.00
More Details€12.53

Windows anti-malware software

€0.00
More Details€19.28

Windows Internet security software

€0.00

Office software suite

Please note; that when purchasing an office suite it will not be installed on the PC. You will need to download and install it from https://setup.office.com/downloadoffice/. A product key will be supplied with the PC to allow you to activate the software.

€0.00
More Details€118.32
More Details€228.34

Audio

€0.00

Speakers

€0.00

Wi-Fi / Bluetooth

€0.00
More Details€15.71
More Details€21.79
More Details€43.10

Keyboard and mouse set

€0.00
More Details€14.46
More Details€15.14
More Details€19.29
More Details€25.37
More Details€39.83
More Details€49.85
More Details€56.03
More Details€78.40

External USB 3.0 portable hard drive

€0.00
More Details€92.77

Main monitor

€0.00
More Details€100.58
More Details€191.80
More Details€200.86
More Details€207.13
More Details€208.20
More Details€213.79
More Details€340.40
More Details€388.43

Second monitor

€0.00
More Details€100.58
More Details€191.80
More Details€200.86
More Details€207.13
More Details€208.20
More Details€213.79
More Details€340.40
More Details€388.43

Webcam

€0.00
More Details€60.95
Free Silver Warranty (2 years labour and parts)

Warranty

€0.00
€53.52
€111.38

Express build

If you need your PC quickly then we have a faster build option which you can select below.

€0.00
€77.14
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SpecificationsLeviathan Z4
Machine nameLeviathan Z4 ATX Gaming PC
Compatible Operating SystemsWindows 10/11
MotherboardASUS TUF X670E PLUS WIFI
Graphics portsGraphics card dependant
LAN PortsRealtek 2.5Gb Ethernet with TUF LANGuard
AudioRealtek S1220A 7.1 Surround Sound High Definition Audio CODEC
Wireless CommunicationWi-Fi 6E 2x2 (802.11 a/b/g/n/ac/ax) and Bluetooth v5.2
Rear PortsUSB Type-C 3.2 Gen 2x2 port, 4x USB 3.2 Gen 2 ports (1x USB Type-C), 5x USB 3.2 Gen 1 ports, DisplayPort 1.4, HDMI 2.1, Wi-Fi Module, Realtek 2.5Gb Ethernet port, 5x Audio jacks, BIOS FlashBack button
Front portsCase dependant, see configurator
PC dimensions (H X W X D)Case dependant, see configurator
Clean Build™ promiseOS+updates, drivers and MS Security Essentials only
Recovery methodWindows installation and drivers DVDs supplied
Warranty typeCollect and return, open-case policy
Warranty24 months
SpecificationsLeviathan Z4
Machine nameLeviathan Z4 ATX Gaming PC
Compatible Operating SystemsWindows 10/11
MotherboardASUS TUF X670E PLUS WIFI
Graphics portsGraphics card dependant
LAN PortsRealtek 2.5Gb Ethernet with TUF LANGuard
AudioRealtek S1220A 7.1 Surround Sound High Definition Audio CODEC
Wireless CommunicationWi-Fi 6E 2x2 (802.11 a/b/g/n/ac/ax) and Bluetooth v5.2
Rear PortsUSB Type-C 3.2 Gen 2x2 port, 4x USB 3.2 Gen 2 ports (1x USB Type-C), 5x USB 3.2 Gen 1 ports, DisplayPort 1.4, HDMI 2.1, Wi-Fi Module, Realtek 2.5Gb Ethernet port, 5x Audio jacks, BIOS FlashBack button
Front portsCase dependant, see configurator
PC dimensions (H X W X D)Case dependant, see configurator
Clean Build™ promiseOS+updates, drivers and MS Security Essentials only
Recovery methodWindows installation and drivers DVDs supplied
Warranty typeCollect and return, open-case policy
Warranty24 months

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