Recommended Free Tools
The Arctic Cooling Accelero S2 + Turbo Module was generally a two-part legacy GPU-cooling setup, not one modern all-in-one product. The Accelero S2 was a passive heatsink; the separately sold Turbo Module clipped on two small fans to add airflow. In 2026 it is best treated as discontinued-era hardware for carefully verified vintage graphics cards, not a drop-in upgrade for modern GPUs.
What the name actually refers to
The Accelero S2 and Turbo Module were separate products. The S2 was the passive VGA cooler, while the Turbo Module (retailer model ACCEL-S-TM) was an accessory fan assembly marketed for both the Accelero S1 and S2.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
|
Arctic S3 Turbo Module - Powerful Ventilation Add-On for Accelero S3 – 120 mm Fan for Increasing... | $16.99 | Buy on Amazon |
A listing titled “Accelero S2 VGA Cooler + Turbo Module” can therefore describe a user-installed combination, a retailer bundle, a review title, or two packages sold together. Do not assume every S2 box originally contained the fans.
Period descriptions and photographs identify the S2 as a large copper-and-aluminum heatsink with two heatpipes; the Turbo Module attaches to its fins. Technic3D’s S2 coverage, DragonSteelMods’ Turbo Module review and an archived Newegg listing all treat them as distinct hardware.
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchPC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Accelero S2 design and reported specifications
The S2 was designed to cool the GPU passively. Its copper contact base transferred heat through two copper heatpipes into a broad aluminum-fin array. Reported period dimensions were 140 × 188 × 32 mm, with a weight of about 202 g. A reviewed retail package included eight adhesive memory heatsinks, and thermal compound was reported as pre-applied. These are period specifications, not current ARCTIC-maintained figures.
| Item | Reported value | Qualification |
|---|---|---|
| Cooling method | Passive GPU heatsink | Period product coverage |
| Heatpipes | Two copper heatpipes | Period review |
| Fin material | Aluminum | Period review |
| Dimensions | 140 × 188 × 32 mm | Period review |
| Weight | Approximately 202 g | Period review |
| Memory heatsinks | Eight included | Reported for the reviewed package |
Because there is no integrated fan, the S2 depends on air moving through the computer case. A card can fit the mounting pattern and still overheat in a case with weak intake or exhaust airflow. Passive operation is most appropriate for older, lower-power GPUs, not today’s high-wattage boards.
What the Turbo Module added
The Turbo Module used two open-frame fans that clipped into the S1/S2 fin structure. Surviving specifications list each fan as 80 × 80 × 15 mm, approximately 1,500 RPM, with published airflow of about 42 CFM. The assembly used a 3-pin lead and included a 3-pin-to-4-pin Molex adapter. Period listings put each fan at about 35 g and mentioned a six-year warranty, which should not be interpreted as useful warranty coverage in 2026.
Bearings are not consistently identified in surviving documentation: one review says fluid-dynamic, the Newegg archive says sleeve, and another period review says fluid ball bearing. Treat the bearing type as unresolved rather than relying on one listing.
The fans had no protective grills. That kept the attachment thin but means a loose cable, tool or finger can contact the blades. Technic3D’s accessory coverage documents the open-frame design and the specification discrepancies.
Installation: the details that matter
- Shut down the computer, disconnect power and remove the graphics card.
- Install the Accelero S2 using its mounting instructions, with the GPU contact surface clean and properly seated.
- Orient the card so the cooler’s long edge and fan power lead remain accessible.
- Clip both Turbo Module fans into the S2 fins. For the S2, position each fan over a heatpipe.
- Confirm that every clip engages beneath the fin structure rather than resting loosely on top.
- Route the interconnect and power wires between the fins so they cannot reach either rotor.
- Connect the 3-pin lead to a motherboard fan header, or use the supplied Molex adapter.
- Reinstall the card and inspect clearance to adjacent slots, the motherboard and the case side panel.
- Before closing the case, verify that both rotors spin freely and that no wire can touch a blade.
The period installation guide specifically emphasizes placing the S2 fans over the heatpipes and tucking wires into the fin stack. See the illustrated installation coverage.
A 3-pin fan normally uses voltage control rather than modern PWM. Before using a motherboard header, check its current limit, whether BIOS supports 3-pin voltage control, and whether monitoring reports a meaningful speed. The supplied Molex adapter provides power but may remove motherboard-based speed control. One APH Networks test even showed monitoring software reporting two fan speeds for the paired assembly, so old software readings should be treated cautiously.
Cooling and noise: what the old tests actually show
Results varied with the card, case and test method. In one DragonSteelMods test at 26.8°C ambient, adding the Turbo Module to an S2 setup reduced idle temperature by about 4°C and load temperature by about 5°C. The reviewer considered it effectively inaudible in that particular system; the historical price cited there was US$11.90 on July 14, 2007, not a current price.
A separate APH Networks test used an older Radeon X1950 Pro and the related Accelero S1, not an S2. It recorded:
| Configuration | Idle | Load |
|---|---|---|
| Stock cooler | 53°C | 79°C |
| Passive S1 | 42°C | 56°C |
| S1 + Turbo Module | 37°C | 44°C |
Those figures demonstrate that extra airflow could add thermal headroom on an old card; they do not predict temperatures on another GPU. Results depend on GPU power, ambient temperature, case airflow, contact quality, memory and VRM heatsinks, fan-header voltage, dust and the cooler’s age. Noise reports also conflict: one reviewer heard virtually nothing in context, while APH Networks heard airflow and warned that highly noise-sensitive users might prefer passive operation. “Low-noise for its era” is safer than “silent.”
Compatibility is a physical inspection problem
Period S2 lists covered older families including ATI Radeon X1650/X1600/X1550/X1300/X1050, X850/X800/X700/X600/X550/X300, Radeon 9xxx, and NVIDIA GeForce 7600/7300/6600, FX 5950/5900/5700/5600/5500/5200, GeForce 4 Ti and MX. That list is historical and only a starting point.
Two cards with the same GPU can use different PCBs. Custom mounting holes, capacitors, chokes, VRM components, memory placement, power connectors and board dimensions can prevent installation or leave critical components uncooled.
Verify these points before buying
- GPU mounting-hole spacing and the exact PCB dimensions.
- Clearance around the GPU, including capacitors, chokes and VRM parts.
- Memory-chip positions and whether the supplied heatsinks can cover them.
- VRM layout and whether dedicated heatsinks are required.
- Power-connector height and any extended PCB overhang.
- Clearance to the first PCIe slot, neighboring cards and motherboard heatsinks.
- Case width and side-panel clearance.
- Actual intake and exhaust airflow.
Never infer fitment solely from the GPU chip or a broad family name. A seller should identify the exact graphics-card model and show the mounting hardware and PCB.
Slot usage and case clearance
The S2 is physically large. Period coverage reports that the passive heatsink could block the slot below the graphics card, while adding the Turbo Module could consume another slot. “Single-slot” and “dual-slot” labels are unreliable unless measured in the specific motherboard and card arrangement.
Check whether the fans extend below the card, whether a sound or capture card occupies that space, whether the first PCIe slot is close to the CPU socket, and whether a chipset heatsink or case panel interferes. Multi-card and compact systems are particularly poor candidates.
Memory and VRM cooling are separate jobs
The GPU core can be cool while memory or voltage-regulator components overheat. Period S2 packages reportedly included eight adhesive memory heatsinks, but APH Networks criticized the adhesive as weak and prone to coming loose during installation.
- Clean memory and VRM surfaces with an electronics-safe cleaning method.
- Allow adhesive pads or thermal adhesive to bond fully before moving the card.
- Do not shift heatsinks after placement.
- Confirm that each heatsink clears the main S2 base and fan clips.
- Inspect for loose heatsinks after transport and repeated thermal cycling.
The included pieces are not guaranteed to cover every VRM design. Some boards need dedicated VRM coverage, while others place components where the small accessories cannot fit.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is it discontinued?
As of August 16, 2026, ARCTIC’s current GPU-cooler support page does not list the Accelero S2 or an S2 Turbo Module as current products. It lists newer products and handles discontinued items separately. The combination should therefore be treated as discontinued, legacy hardware; no specific manufacturer discontinuation date is established.
Risks in a 2026 used listing
- Dried or missing thermal compound.
- Aged adhesive on memory heatsinks.
- Fan bearings that grind or fail to start.
- Brittle wires, clips or missing Molex adapter.
- Dust packed into fins or damaged heatpipes.
- Missing mounting hardware or confusion between S1 and S2 parts.
- No practical expectation of current support, replacement parts or warranty service.
Who should still use one?
It can make sense for restoring an older quiet PC, replacing a failed stock fan on a low-power legacy card, building a retro-gaming system or experimenting with period hardware—provided the exact board fits and the complete kit is inexpensive.
Avoid it for modern midrange or high-end GPUs, unknown custom PCBs, compact cases, systems with little slot room, incomplete kits, or any purchase priced near a newer cooler or replacement graphics card. For a very old card, a stock-style replacement cooler—or replacing the GPU—may be safer than adapting an obsolete heatsink.
Current ARCTIC alternatives
| Option | What it offers | Best use | Main caution |
|---|---|---|---|
| Accelero L2 Plus | 92 mm PWM fan; manufacturer-rated 120 W capacity | Supported lower-power GPUs | Exact PCB compatibility still required |
| Accelero Twin Turbo III | Two 92 mm PWM fans; manufacturer-rated 250 W capacity | Supported reference-layout cards needing active cooling | Custom or extended PCBs and obstructing connectors may not fit |
| Accelero Xtreme III | Large legacy active cooler | Compatible older high-power cards | Substantial size and legacy availability |
| Accelero Xtreme IV | Large legacy active cooler with rear-side hardware | Specific compatible reference-layout cards | Rear clearance and unusual dimensions can prevent fitment |
ARCTIC’s current products are not universal solutions. Their compatibility documents still assume particular layouts, so identify the exact card before ordering.
Buying checklist
- Confirm the exact GPU model, PCB and mounting-hole pattern.
- Count every bracket, screw, clip, memory/VRM heatsink and the 3-pin-to-Molex adapter.
- Ask for evidence that both fans start without grinding or intermittent stoppage.
- Measure slot, case-width and side-panel clearance.
- Inspect adhesive, thermal compound, cables and fin cleanliness.
- Compare the total restoration cost with a current supported cooler or replacement GPU.
The old US$11.90 figure is a July 2007 review price, not a dependable 2026 market value. Used prices and availability vary, and an incomplete “cheap” listing can become expensive once missing hardware and aged thermal materials are replaced.
Verdict
The Accelero S2 + Turbo Module remains an interesting, genuinely documented piece of aftermarket GPU hardware: a passive two-heatpipe heatsink supplemented by two clip-on fans. Its historical tests show useful but moderate temperature gains, with noise and compatibility depending heavily on the system.
In 2026, use it only when a low-power vintage card is physically verified, the kit is complete, clearance and airflow are adequate, and the price reflects its age. For modern graphics cards or anyone needing predictable fitment and support, choose a current compatible cooler such as the L2 Plus or Twin Turbo III—or replace the graphics card instead.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsQuick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
