be quiet! Pure Base 500 FX Case Review

Manufacturer: be quiet! be quiet! Pure Base 500 FX Case Review

Now celebrating their 20th anniversary, be quiet! has a trio of new SKUs which make up the FX world of products, with a case and two coolers providing a fresh take on existing models. These FX products are also launching at discounted prices throughout August and September, according to be quiet!.

Today we are looking at the Pure Base 500 FX, which is based on the Pure Base 500DX, a case that we looked at back in April 2020. The new Pure Base 500 FX is a high-airflow design which offers four preinstalled Light Wings 120mm high-speed fans, and offers both external and internal ARGB LED lighting (ARGB and PWM fan hub included), among other features.

With the previous Pure Base 500DX I praised the “overall quality of its construction, outstanding performance, and stylish appearance”, and the new 500 FX model increases the included fan count from three to four, and adds an ARGB/fan hub. This is still a high-airflow design, as its mesh front and triple intake fans should promote some very good thermals. Let’s check it out.

be quiet! FX world case and coolers

The FX lineup includes the Pure Base 500 FX, Pure Loop 2 FX liquid cooler, and Pure Rock 2 FX air cooler.

Features of the Pure Base 500 FX (via be quiet!):

The be quiet! Pure Base 500 FX Black offers impressive lighting with multiple modes and maximum airflow for high cooling performance.

  • ARGB lighting at the fans, the front and inside the case
  • Multiple colors and modes for an individual look
  • 4 Light Wings PWM fans for high airflow and quiet operation
  • ARGB-PWM-Hub enables synchronization of up to 6 ARGB components and 6 PWM fans
  • High airflow intake front panel and top cover for maximum performance
  • USB 3.2 Gen. 2 Type C for latest hardware
  • Ready for radiators of up to 360mm
  • 3-year manufacturer’s warranty

As to pricing, be quiet! is launching the Pure Base 500 FX at a discount of $30 off the $149.90 list, with a current price of $119.90 USD (Newegg link) that should be available through the end of next month.

Product Specifications

General data

  • Model: Pure Base 500 FX
  • PSU form factor: ATX PS/2
  • Expansion slots: 7
  • Fan mounting locations: 6
  • Motherboard compatibility: ATX / M-ATX / Mini-ITX
  • Installation of motherboards with backplate: Yes
  • Case size excl. stands (L x W x H), (mm): 450 x 232 x 443
  • Case size incl. stands (L x W x H), (mm): 450 x 232 x 463
  • Dimensions side panel window (L x W), (mm): 400 x 431
  • Weight (kg): 8,0
  • Color option: Black
  • Case I/O Ports:
  • 1x USB 3.2 Gen. 1
  • 1x USB 3.2 Gen. 2 Type C
  • 3.5 mm Mic + Audio


  • Top cover : ABS
  • Side panel: Steel
  • Side panel window: 4mm Tempered Glass
  • Front panel: ABS
  • Stands: ABS

Drive bay capacity

  • 3.5 slots (max.): 2
  • 3.5 slots (scope of delivery): 2
  • 2.5 slots (max.): 4
  • 2.5 slots (scope of delivery): 4

Pre-installed fans

  • Fan @ front 3x Light Wings PWM 120mm
  • Fan @ rear 1x Light Wings PWM 140mm
  • Dimensions (L x W x H), (mm) 120 x 120 x 25 / 140 x 140 x 25
  • Fan speed @ 100% PWM / 12V (rpm) 1700 / 1500
  • Noise level @ 100% PWM / 12V (dB(A)) 20.6 / 23.3
  • Airflow @ 100% PWM / 12V (CFM / m3/h) 41.51 / 70.53 / 56 / 95.14
  • Air Pressure @ 100% PWM / 12V (mm H2O) 1.66 / 1.49
  • Voltage range (V DC) 5 – 13.2
  • Input power (W) 4.56 / 3.84
  • Input current (A) 0.07 / 0.08
  • Connector 4-pin PWM
  • Lifespan (h / 25°C) 60,000
  • Fan controller PWM and ARGB Hub

Maximum fan installation

  • Front (mm) 3 x 120 / 2 x 140
  • Top (mm) 2x 120 / 2 x 140
  • Bottom (mm): N/A
  • Side panel (mm): N/A
  • PSU shroud: N/A

Optional radiator installation

  • Front (mm) 120 / 140 / 240 / 280 / 360
  • Top (mm) 120 / 240
  • Bottom (mm): N/A
  • Rear (mm) 120 / 140


  • Max. construction height of CPU cooler unit (mm): 190
  • Airflow channel: Front / Top / Rear

PSU compatibility

  • Maximum dimensions excl. bottom fan (mm): 258
  • Maximum dimensions incl. bottom fan (mm): 225

Graphics card

  • HDD cage (in height of graphics card) installed (mm): 369
  • HDD cage (in height of graphics card) removed (mm): 369


  • RGB LED illumination: Yes
  • LEDs synchronizable with RGB controller/motherboard: Yes
  • Expandable RGB controller: N/A

Insulation and damping

  • Side panel insulation mats
  • Anti-vibration decoupled HDD
  • Anti-vibration decoupled PSU

Removeable dust filters

  • Front
  • Bottom

$149.90 USD list

Manufacturer Description

“The be quiet! Pure Base 500 FX Black offers impressive lighting with multiple modes and maximum airflow for high cooling performance.”

The Pure Base 500 FX

If you are familiar with the Pure Base 500DX, the appearance of the 500 FX will be familiar to you. This is a compact ATX design with a mesh front, separated in the center with a section that integrates two vertical lighting strips.

be quiet Pure Base 500 FX Front Angle

As is mandatory with RGB case designs, the 500 FX features a tempered glass side panel on the component side, and there are a total of four included ARGB fans – plus those front light strips. More on lighting later, as we need to look at the rest of the enclosure design first.

There are three screen filters on the 500 FX, with a slide-out bottom filter and a magnetically attached top filter. The screen filter on the front intake is also removable, though it does require the removal of the front panel – which snaps off pretty easily.

be quiet! offers this exploded view, providing a better look at the construction of the enclosure than my photos can provide:

be quiet Pure Base 500 FX Side Panels

There are six fan mounts within the Pure Base 500 FX, including two at the top of the case, visible with the screen filter removed:

be quiet Pure Base 500 FX Top Screen Removed

Up to a 240 mm radiator can be installed up top, with larger radiators only supported on the front intake (up to 280 / 360 mm). Next, we will look inside the case – but first, we have to take the side panels off.

be quiet Pure Base 500 FX Side Panels

The tempered glass panel for the component side has a thickness of 4 mm, and if there is a tint to the glass it’s pretty minimal. The back side panel features an insulation mat to help keep noise down, though this high-airflow design will not be the best choice if silence is your goal.

Looking inside the case we see the same internal layout as the Pure Base 500DX, with the primary difference being the included fans with the 500 FX, which offers three Light Wings PWM 120 mm on the front intake, and one Light Wings PWM 140 mm fan on the rear exhaust mount.

be quiet Pure Base 500 FX Side Panels

Just as with the Pure Base 500DX, the Pure Base 500 FX has a pre-mounted RGB light strip inside the front edge, just out of view (and I forgot to take a photo, though you can see it in the 500DX by clicking here), which adds even more RGB illumination when the system is powered up.

If you haven’t noticed by now, the Pure Base 500 FX is basically the 500DX with a different, more numerous set of pre-mounted fans, and a built-in fan and lighting control hub. I won’t go over the build process here, but you can reference the build notes from my Pure Base 500DX review at this link.

Obviously lighting is a big part of the 500FX, and there are a number of lighting options available with the 500 FX. These options are controlled initially via a button on the top I/O, which cycles between a number of different colors and modes.

be quiet Pure Base 500 FX Side Panels

Holding down this ARGB lighting button for 3 seconds engages the sync function, as the control hub passes the lighting control through from the motherboard ARGB header. This works properly – though I found that the red/green color channels swapped with the ASRock board I was using – or maybe in the software… (I’m not the only one who has experienced this with ASRock boards, it seems.)

be quiet Pure Base 500 FX Side Panels

Without enabling the “Addressable RGBSwap” the case lighting was not syncing with the ASRock Z590 Taichi motherboard I used for this build, until I realized that the red slider was adjusting green, and the green slider was adjusting red. Swapping these corrected the issue.

Here’s a look at the interior with the purple color I ended up with for this build:

be quiet Pure Base 500 FX Side Panels

This is not a crazy amount of lighting, and of course you have the option of choosing no illumination at all, if for some reason you purchase a case with ARGB fans and want to turn off their LEDs. The biggest impact comes from the front of the case, with those two vertical lighting strips (not to mention the triple ARGB fan lighting).

Here is a look from the front with rainbow lighting at its most colorful:

be quiet Pure Base 500 FX Side Panels

Can you believe that we are looking at a be quiet! product here? Rainbow RGB has reached peak saturation in the market, certainly. As mentioned above I ended up choosing a single color for my build, but from the outside this is not a subtle looking case.

Turning our attention to the area behind the system, I’ll mention that cable management isn’t particularly challenging with the 500 FX, and while this isn’t the neatest looking build I spent very little time organizing cables:

be quiet Pure Base 500 FX Side Panels

With the system complete, it was time to test out thermal performance, and see how much of a noise penalty this high airflow case might incur.

Performance Notes

To assess performance I simply compared thermals with the components on the open testbed vs. inside the Pure Base 500 FX. It’s important to note that fan speed will affect performance to a great extent, and to this end I had the case fans set to the motherboard’s “performance” preset fan curve, and the CPU fan set to 100%. I’ll cover how fan speeds affected noise shortly.

PC Perspective Enclosure Test Platform
Motherboard ASRock Z590 Taichi
Processor Intel Core i9-11900K (all limits enforced)
Memory 32GB (16GBx2) G.Skill Trident Z NEO DDR4-3600 CL14
Graphics Card NVIDIA GeForce RTX 2080 Founders Edition
Storage CORSAIR Neutron Series XTi 480GB SSD
Power Supply SilverStone ST1000-PTS 1000W
Operating System Windows 10 64-bit

First we will look at open testbed vs. enclosure thermals:

be quiet Pure Base 500 FX thermals chart

With the case fans set to the “performance” preset the airflow helped the tower cooler manage temps with the tested 11th Gen Core i9 processor (power limits were enforced, hence the temps only in the 60s), and in spite of the airflow boost (I’m assuming) the relatively small size of this enclosure affected load temps with the RTX 2080 FE card I used, but not to any large degree (get it?).

At this “performance” fan preset for the case fans there was a slight increase in GPU load temps within the enclosure (vs. the the open testbed) with these particular components, and a decrease in CPU temps inside the case.

Turning things up to 100% with all four of the included case fans resulted in temps even better than an open testbed – understandable considering how much high airflow can help air-cooled components like these.

On to noise levels, and this was interesting. At idle, when I had the system configured as it was for the thermal testing seen above (CPU cooler set to 100%, other fans at “performance” preset), idle noise was a very noticeable 36.2 dBA (measured with the meter 12 inches from the front of the case). On the other hand, total system noise only rose slightly above this under a gaming load, hitting 36.7 dBA on the meter.

When I set the CPU fan to the same “performance” profile as the other fans, idle noise was barely audible, registering at just 30.7 dBA – again with my meter positioned 12 inches from the front of the case. Under a sustained load this system will again rise to the mid 30s, but what about with the case fans at 100% – something I never saw with my testing?

If you really want to push air through the 500 FX, setting the case fans to 100% (like I did with the updated chart above) results in a tolerable 38.4 dBA noise level, which is not only a lot less than I was expecting, but probably a higher number than you will ever hear given the very close proximity of my meter to the front of this high airflow case (unless you are pointing your ear at the case from 12 inches away).

Final Thoughts

Considering the Pure Base 500 FX is essentially the same enclosure as the Pure Base 500DX, but with more fans and enhanced ARGB lighting, I don’t have much to add to my conclusion to that earlier design, which I liked quite a bit. Now, speaking only for myself here, I thought this style of case lighting looked better with a white enclosure, since it has a brighter overall appearance, but be quiet! is not offering the 500 FX in white as they did with the 500DX. Oh well.

As with the Pure Base 500DX, construction feels solid overall, and thermals are very good. I like the choices made with regard to fan placement, as a 140 mm rear and triple 120 mm intake fans will get you close to the best performance possible from this design.

be quiet Pure Base 500 FX Front Angle with Lights

Value is solid, as well, considering that (right now, anyway) the Pure Base 500 FX is available for $119.90 on Newegg (sold by be quiet!, shipped by Newegg). When that initial price drop of $30 eventually ends, the case is still quite reasonable at its $149.90 USD MSRP, considering the inclusion of four ARGB be quiet! fans.

I’m personally less a fan of the lighted fans/lighted vertical bars look of this design, but I could easily turn off the front fan lighting and recreate the look the 500DX that I was a fan of. Regardless of personal aesthetic preferences, you really can’t go wrong with the Pure Base 500 FX if you’re looking for a compact ATX design with good airflow and ARGB lighting.

pcper gold award

Awarded for meaningful performance gains without a price increase.

Review Disclosures

This is what we consider the responsible disclosure of our review policies and procedures.

How Product Was Obtained

The product is on loan from be quiet! for the purpose of this review.

What Happens To Product After Review

The product remains the property of be quiet! but is on extended loan for future testing and product comparisons.

Company Involvement

be quiet! had no control over the content of the review and was not consulted prior to publication.

PC Perspective Compensation

Neither PC Perspective nor any of its staff were paid or compensated in any way by be quiet! for this review.

Advertising Disclosure

be quiet! has purchased advertising at PC Perspective during the past twelve months.

Affiliate Links

If this article contains affiliate links to online retailers, PC Perspective may receive compensation for purchases through those links.

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About The Author

Sebastian Peak

Editor-in-Chief at PC Perspective. Writer of computer stuff, vintage PC nerd, and full-time dad. Still in search of the perfect smartphone. In his nonexistent spare time Sebastian's hobbies include hi-fi audio, guitars, and road bikes. Currently investigating time travel.


  1. BigTed

    I built a couple of systems last year in the DX version. Really liked the build process, plus my sons loved the RGB. Great cases.

  2. Kat

    Thanks you for your review. I Just bought myself this case to build new computer, But can I test the led lighting without the mobo as waiting for my mobo, ram cpu etc order to arrive.

    I have the case and a be-quiet power supply and wonder if I can at least test the led lighting to make sure it’s working.

    many thanks

    • Sebastian Peak

      I can’t remember if this one uses a SATA power input on the control board, or if it passed ARGB straight from the motherboard. I’ll have to look.


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