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Choose Your Quiet PC be quiet X900 Extreme

(1 customer rating)
be quiet X900 Extreme
be quiet X900 Extreme
be quiet X900 Extreme
be quiet X900 Extreme
Case DB 900 Pro Orange
Case Configurable
Memory Corsair 32GB DDR4
Memory Configurable
CPU cooler Silent Loop 360mm
CPU cooler Configurable
M.2 drive 960 EVO 250GB
M.2 drive Configurable
5.25" bay ASUS DRW-24D5MT
5.25" bay Configurable
Operating system Windows 10 Pro
Operating system Configurable
From £1,539.00
1 in stock
Built & delivered within 7 days

Quiet PC be quiet X900 Extreme

A top quality fully-built quiet PC, using high performance be quiet! components. The be quiet! approved X900 system features only the best be quiet! components and Intel's X299 platform for amazing performance.

be quiet! are renowned for producing some of the world's quietest PC components. From CPU coolers to power supplies, be quiet! have quiet alternatives making sure the PC produces as little noise as possible. With this in mind it was only a matter of time before be quiet! and Quiet PC joined forces to bring to the market a range of extremely quiet, high performance PCs.


  1. Fully built quiet PC system tailored for great performance
  2. Selected be quiet components offer value and very low noise levels
  3. We build to your specification and deliver within 7 days
  4. Clean Build™ Promise and original OS+drivers supplied on DVDs
  5. Two year warranty with open-case policy

Top Performance and Reliability

Based around be quiet's flagship Dark Base 900 chassis, the X900 Extreme PC offers performance like no other whilst keeping noise to a minimum. The system features an ASUS PRIME X299-A motherboard making it ideal for PC professionals, enthusiasts and the PC server market. The motherboard has Intel's latest X299 chipset making it compatible with LGA2066 Skylake-X processors. The X299 platform demands the use of DDR4 memory which represents the biggest leap forward in memory performance in several years. This, combined with an unprecedented number of processor cores, gives speed in spades. We can't promise you the world's most frugal PC, but we can promise you best-of-breed PC component technology. As the saying goes, it's the best that money can buy. Of course technology like this doesn't come cheap, but if you have a specific reason to demand the most powerful processing available, choosing a Skylake-X machine will pay dividends over and over.

Cooling components

In this system you'll find that (where possible) only be quiet! components can be installed. You have a choice of be quiet! CPU cooler and power supply, which will be installed into the be quiet! chassis that features multiple be quiet case fans. This guarantees that the system will make very little noise. be quiet! and Quiet PC are an ideal partnership! Tell everyone, but do it quietly!

Storage considerations

When specifying your new PC's storage options using our system configurator, 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.

Therefore 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 ultimately recommend that customers chose an M2 drive as a boot drive that contains the operating system and important programs and a conventional HDD to store other data.

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 Microsoft Security Essentials / Windows Defender - 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 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.

Specificationsbe quiet X900 PC
Machine namebe quiet A600
Compatible Operating SystemsWindows 10
MotherboardASUS PRIME X299-A
GraphicsIntel HD or optional discrete graphics card
Graphics portsHDMI and DVI
Max resolution HDMI4096 x 2160 @ 24 Hz / 2560 x 1600 @ 60 Hz (HDMI 1.4b)
Max resolution DVI1920 x 1200 @ 60 Hz
Maximum shared graphics memory1024 MB
M.2 connector2
LANIntel I219V, Dual interconnect between MAC and PHY with Anti-surge LANGuard
Rear portsPS/2 combo port, 2x USB3.1, 4x USB3.0, 2x USB2.0, Optical out and 5x Audio jacks
Front ports2x USB3.0, 2x USB2.0, headphone and mic port
AudioROG SupremeFX 8-Channel High Definition CODEC S1220A
Memory slots4 (max 64 GB)
PC dimensions (H x W x D) mm517 x 220 x 532
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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Quiet PC Ltd
Brawby Grange
YO17 6PZ
United Kingdom

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2 year warranty

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