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Before purchasing or installing components, check the specifications for your darkFlash case and compare them with the dimensions of your hardware.

Compare your graphics card length and thickness with the case’s supported GPU clearance. Keep in mind that front-mounted radiators or fans may reduce the available space.

Compare the height of your CPU cooler with the case’s maximum supported CPU cooler height.

Check the supported PSU type and maximum PSU length. Cable space and installed drive cages may also affect PSU clearance.

For the most accurate information, refer to the specifications listed on the product page for your specific case model.

If you are still unsure about compatibility, contact darkFlash Customer Support with your case model and component model numbers.

Before purchasing or installing components, check the specifications for your darkFlash case and compare them with the dimensions of your hardware.

Graphics Card (GPU)

Compare your graphics card length and thickness with the case’s supported GPU clearance. Keep in mind that front-mounted radiators or fans may reduce the available space.

CPU Air Cooler

Compare the height of your CPU cooler with the case’s maximum supported CPU cooler height.

Power Supply (PSU)

Check the supported PSU type and maximum PSU length. Cable space and installed drive cages may also affect PSU clearance.

For the most accurate information, refer to the specifications listed on the product page for your specific case model.

If you are still unsure about compatibility, contact darkFlash Customer Support with your case model and component model numbers.

How do I check whether my graphics card, PSU, and CPU cooler will fit in my darkFlash case?

Check the Fan Support and Radiator Support fields on the exact case product page. Supported sizes and mounting locations vary by model, so verify the top, front, side, bottom, and rear positions individually before purchasing or installing cooling hardware.

Which fan and radiator sizes will fit in my darkFlash case?

Choose based on motherboard size, GPU length, CPU cooler height, PSU dimensions, radiator/fan support, storage requirements and front I/O needs. Check the individual U.S. product-page specifications before purchase.

What PC case size should I choose?

If your motherboard screw holes don’t align with the case standoffs, 

. Forcing components can damage the PCB or cause dangerous electrical shorts. Instead, follow these steps:

Ensure your case supports your motherboard size (Standard ATX, Micro-ATX, Mini-ITX, or E-ATX). If you are trying to fit an ATX board into a Micro-ATX case, the holes will not line up.

Standoffs (the small brass spacers) must align perfectly with your motherboard's mounting points.

Some budget-friendly or unique cases may not feature every standard mounting point. If a corner hole doesn't have a matching standoff, it is generally safe to skip it—provided the motherboard is secure, stable, and not flexing.

drill new holes in your case or motherboard. If most holes align but one is slightly off, it is safer to leave that specific screw out rather than forcing it, which could crack the board.

If your motherboard screw holes don’t align with the case standoffs, do not force them. Forcing components can damage the PCB or cause dangerous electrical shorts. Instead, follow these steps:



Confirm Form Factor Compatibility 

Ensure your case supports your motherboard size (Standard ATX, Micro-ATX, Mini-ITX, or E-ATX). If you are trying to fit an ATX board into a Micro-ATX case, the holes will not line up.





Check the Tray: Most cases have legends engraved on the motherboard tray (e.g., "A" for ATX, "M" for mATX) to guide you.



Verify Standoff Positions 

Standoffs (the small brass spacers) must align perfectly with your motherboard's mounting points.





Warning: An extra standoff installed underneath the motherboard where there is no hole can cause a short circuit and fry your components.



Action: Remove any unnecessary standoffs and only install them where your motherboard has corresponding holes.



Check for Case Limitations 

Some budget-friendly or unique cases may not feature every standard mounting point. If a corner hole doesn't have a matching standoff, it is generally safe to skip it—provided the motherboard is secure, stable, and not flexing.





Safety First: No Drilling Never 

drill new holes in your case or motherboard. If most holes align but one is slightly off, it is safer to leave that specific screw out rather than forcing it, which could crack the board.

My motherboard screw holes don't align. What should I do?

Check Cable Management Routing





Many cases have cutouts around the motherboard for routing. If the cables feel short, sometimes running them directly across instead of through the back panel helps.



The CPU EPS 8-pin (top left of the board) is often the hardest to reach — don’t worry if it doesn’t go behind the motherboard tray, as long as it doesn’t touch fans.



Use Cable Extensions





24-pin ATX, 8-pin CPU, and PCIe GPU cables are commonly sold as extension cables.



These give you more length and also make cable management easier.



Look for brands like CableMod, Phanteks, EZDIY, or generic PSU extensions — they’re cheap and safe.



Check PSU Orientation





If your PSU is mounted upside down (fan facing the wrong way), the cables may exit further from the routing holes.



Try flipping it — this often gives you a few extra inches where you need them.



Use the Right Path





Sometimes the shortest visual route isn’t the most efficient.



Try threading cables diagonally across the back panel instead of straight up/down — often makes them reach.



Last Resort: Replace PSU





If your PSU is older or came with a prebuilt, the cables might just be too short for a modern mid/full tower case.



A new modular PSU will give you longer, detachable cables and cleaner routing.

My power supply cables are too short or difficult to route. What should I do?

A common layout uses front/bottom/side fans as intake and rear/top fans as exhaust. Actual placement depends on case design.

How should I install case fans for optimal airflow?

Check every few weeks and clean more often in dusty rooms, homes with pets or high-use systems.

How often should I clean the dust filters?

Power off the PC, remove the panel carefully, use a clean microfiber cloth and avoid spraying liquid onto components.

How do I clean a tempered glass panel?

Stop using the broken panel, remove loose glass safely, and contact support with the case model, purchase information and photos.

What should I do if the tempered glass panel breaks?

Do not use excessive force. Check whether the panel uses screws, clips, magnets, sliding tracks or quick-release mechanisms.

What should I do if a case panel is stuck?

The function of the LED and Reset buttons depends on the case model and how the front-panel cables are connected.

On supported cases, the LED button may be used to change lighting effects or control a connected lighting controller.

The Reset button is normally used to restart the computer when connected to the motherboard’s reset header. On some setups, it may instead be connected to a lighting controller and used as an LED control button.

Refer to the installation manual for your specific case before changing any front-panel connections.

The function of the LED and Reset buttons depends on the case model and how the front-panel cables are connected.

On supported cases, the LED button may be used to change lighting effects or control a connected lighting controller.

The Reset button is normally used to restart the computer when connected to the motherboard’s reset header. On some setups, it may instead be connected to a lighting controller and used as an LED control button.

Refer to the installation manual for your specific case before changing any front-panel connections.

How do the LED and Reset buttons on my PC case work?

Vertical GPU mounting compatibility depends on your PC case, graphics card dimensions, vertical mounting space, and the type of riser cable or bracket being used.

Before installation, check whether your case supports vertical GPU mounting and confirm that there is enough clearance between the graphics card, side panel, fans, and other components.

A compatible PCIe riser cable may also be required.

Because mounting designs vary by case model, refer to your case specifications and installation manual before purchasing a vertical GPU bracket or riser cable.

Vertical GPU mounting compatibility depends on your PC case, graphics card dimensions, vertical mounting space, and the type of riser cable or bracket being used.

Before installation, check whether your case supports vertical GPU mounting and confirm that there is enough clearance between the graphics card, side panel, fans, and other components.

A compatible PCIe riser cable may also be required.

Because mounting designs vary by case model, refer to your case specifications and installation manual before purchasing a vertical GPU bracket or riser cable.

How do I check compatibility and install a vertical GPU mount?

Connect each case cable to the matching motherboard header according to the motherboard manual. The power/reset/LED leads connect to the front-panel header; USB 3.x, USB Type-C, and HD Audio each use their own motherboard headers. Do not force a connector into a header that does not match.

How do I connect my case's front-panel power switch, USB, and audio cables?





Confirm that the case Type-C cable is fully connected to a compatible motherboard front USB Type-C / Type-E header.



Confirm the motherboard actually provides and enables that header.



Check chipset / USB drivers and BIOS updates from the motherboard manufacturer.



Inspect the cable and connector for damage and test another known-good USB-C device.

What should I check if my case's front USB Type-C port isn't working?

Built-in display connection methods vary by case model. Follow the exact case manual for the internal USB/video/power connection, then install any required darkFlash software from the model-specific Download section.

How do I connect the built-in display in my PC case?

As an enthusiast of games and computer DIY in this age, we, darkFlash, feel proud and grateful for keep thinking how to develop impressive and extraordinary products with high-end facilities by assembling and using the PC cases, CPU coolers, case fans, and even gaming chairs and tables in person.

Our goal is to create products that could extremely exert its effect by every user.