Fix PCs Cooling & Cases Tiers
Rank fans, liquid coolers, and chassis for repairs, thermals, and showpiece contracts.
Cooling and cases are where Fix PCs! stops being only a parts spreadsheet and starts feeling like a real shop. Customers bring overheating towers, dusty chassis, and bent-up cases; contracts ask for painted showpieces; your street-facing shopfront with a 3D name looks better when display rigs actually breathe. This page ranks liquid coolers, fans, and cases for repair value versus build/display value, expanding the Tier List Hub.
Compute silicon rankings live on GPU, CPU, Motherboard & RAM. Assembly workflow is covered in Build Custom PCs. Always finish with power-on and benchmark — pretty fans that are unplugged still fail the job.
Why thermals and chassis matter in Fix PCs
The core loop (diagnose → workbench → parts/screws/cables → power on → benchmark → pay) includes failure modes that never need a new GPU:
- Clogged dust that thermal-throttles an otherwise fine CPU
- Dead case fans or disconnected cooler pumps
- Bent pins after a cooler was yanked incorrectly
- Cases that physically block the cooler or GPU you planned to install
- Contract aesthetics: repaints, glass panels, tidy cable routes customers can see
Street weather outside the shop is flavor; inside, airflow and fitment are profit.
Fan tiers
Fans are the highest-frequency cooling fix and the cheapest way to look competent.
Repair value — fans
| Tier | Role | Notes |
|---|---|---|
| S | Standard case fans | Refill constantly; clear overheating tickets fast |
| A | CPU cooler fan replacements | Pair with dust blowout before condemning the whole cooler |
| B | High static-pressure fans | Useful in dense racks and front-intake heavy cases |
| C | RGB-only spares | Fix lighting complaints after thermals are stable |
| D | Leaving dead fans because “the liquid cooler should handle it” | Benchmarks disagree |
Build value — fans
| Tier | Role | Notes |
|---|---|---|
| S | Balanced intake/exhaust sets | Stable customs and quieter shop demos |
| A | Matched RGB sets for display PCs | Shopfront eye candy that still moves air |
| B | Extra exhaust for dual-GPU heat | Prevents thermal rework on hot contracts |
| C | Minimal single-fan budget builds | Acceptable for office nodes only |
| D | All intake, no exhaust show builds | Hotboxes that fail long benchmarks |
Technique: Blow out dust before you replace fans. Fix PCs calls out dust service for a reason — swapping blades in a carpet of lint just reprints the ticket tomorrow.
Liquid cooler tiers
Liquid coolers signal “pro shop,” but they punish sloppy installs: mount pressure, tubing clearance, radiator fan direction, and pump power headers all matter.
Repair value — liquid coolers
| Tier | Role | Notes |
|---|---|---|
| S | Mid AIO-style coolers with easy mounts | Solve thermal shutdowns on mainstream CPUs |
| A | Stock air coolers as loaners | Keep customers online while liquid parts are on order |
| B | High-end multi-radiator units | Worth it for premium walk-ins; longer bench time |
| C | Exotic coolers needing rare brackets | Only when the chassis/CPU combo demands them |
| D | Forcing liquid cooling into no-radiator cases | Guaranteed rework |
Build value — liquid coolers
| Tier | Role | Notes |
|---|---|---|
| S | Clean AIO loops on gaming/creator customs | Looks premium in shop photos and passes stress |
| A | Dual-radiator setups for dual-GPU heat | Contracts that run long benchmarks |
| B | Quality air coolers on rack nodes | Often smarter than tubing spaghetti in dense racks |
| C | Showcase hard-tubing style pieces | Display floor flex after Job Bin is full |
| D | Untested loops on deadline contracts | Never experiment on the customer’s clock |
If a cooler came off a bent-pin CPU, straighten pins and inspect the socket before the new cooler goes on. Cooler swaps are how pin damage happens.
Case tiers
Cases are half logistics, half marketing. Repair shops need accessible chassis; contracts need paint, glass, and size class.
Repair value — cases
| Tier | Role | Notes |
|---|---|---|
| S | Tool-friendly mid towers | Fast access to screws, cables, and dust filters |
| A | Compact cases you already know | Speed beats novelty during rush hour |
| B | Damaged-case replacements | When the chassis itself is the fault |
| C | Loaner cases while customs are painted | Keeps queue moving |
| D | Fighting a nightmare cable maze without panel removal | You will miss a power lead |
Build value — cases
| Tier | Role | Notes |
|---|---|---|
| S | Cases matching contract size + GPU length | Fitment first, then beauty |
| A | Paint-ready chassis for repaint jobs | Fix PCs highlights case repainting — stock blanks |
| B | Glass showpieces for shopfront demos | Supports the 3D name street presence |
| C | Rack chassis for server orders | Function over RGB |
| D | Pretty cases that block radiators or long GPUs | Fails the build before power-on |
Repainting is a named activity — treat paint jobs like contracts: quote, strip/prep, paint, reassemble, then verify thermals still work with the new panels and filters.
Aesthetics vs thermals (do not pick only one)
Shop display machines near the window should look intentional: matched fans, tidy cables, painted panel, maybe a liquid cooler. They should also idle cool while weather effects roll down the street outside. A shopfront full of thermal emergency lights teaches customers the wrong lesson.
Rule of thumb:
- Meet airflow and clearance.
- Pass benchmark.
- Then spend on paint, glass, and RGB.
Contracts that specify looks still fail if the machine cannot stay powered under load.
Early / mid / late cooling & case plan
Early: Dust kit mindset, spare fans, one reliable air cooler, one easy mid tower. Ignore vanity.
Mid: Add a liquid cooler option, paint-ready cases, labeled fan drawer, and a display PC that actually runs. Staff should know which cases fit which radiators.
Late: Dual-GPU thermal kits, rack chassis, showpiece painted builds, and enough fans to refill after every busy hour. Keep tool-friendly towers for walk-in repairs forever.
Bench checklist for cooling/case jobs
- Diagnose: dust, fan spin, cooler mount, case damage, or true CPU/GPU fault?
- Blow out dust and clean filters before new parts.
- Confirm radiator/GPU/cooler clearance in the chosen case.
- Seat cooler power and fan headers.
- Reinstall all screws and panels that affect airflow.
- Power on and run benchmark under load.
- Only then apply paint/RGB finishing for contract photos.
Related pages
- Tier List Hub — overall parts philosophy.
- GPU & CPU tiers — silicon that creates the heat you are cooling.
- Build Custom PCs — full custom and rack assembly.
- How to Repair — diagnosis order.
- Repair Checklist — printable-style steps.
- Players Hub — co-op manners when sharing paint booths and benches on 6-player servers.
Cooling and cases will not replace a correct GPU diagnosis — but they salvage countless jobs that look like “dead CPU” tickets from across the room. Stock fans like consumables, treat liquid coolers with respect, and never let a painted panel hide a disconnected pump header.
Frequently Asked Questions
Quick answers to the most common questions.
Should I buy a liquid cooler in the early game?
Usually later. Early profits come from dust blowouts, fan swaps, and simple air coolers. Add liquid options when premium walk-ins and customs appear.
Do painted cases affect performance?
Paint is mostly aesthetic, but panels and filters still need proper airflow. Finish thermals and benchmarks before treating paint as the success condition.
Why did my showcase PC overheat?
Common causes: all-intake fan layouts, disconnected cooler power, clogged filters, dual-GPU heat without extra exhaust, or a case that blocks the radiator.
Are rack builds better with air or liquid cooling?
Quality air coolers are often cleaner in dense racks. Use liquid where contracts and clearance justify the tubing and radiator space.
How do cases tie into the shopfront?
Display PCs behind your 3D shop name should look sharp and run stable. Tool-friendly towers still belong on the repair bench for speed.
Where are GPU and CPU rankings?
See the GPU, CPU, Motherboard & RAM tier page linked from this article and the Tier List Hub.