ID-Cooling’s Real Problem Is Noise, Not Scented Paste

Scented thermal paste belongs on a trade-show shelf, not in a build log, and it is not why anyone should pay attention to ID-Cooling this year. The material that matters is quieter and more technical: redesigned fan blades, soldered fin stacks, cable-free fan power, and a radiator deliberately built wider than the fans bolted to it. ID-Cooling is fighting Thermalright for the value tier while trying to answer the one complaint that keeps following it around — noise.

That combination is worth taking seriously because the cheap end of cooling has become a two-horse race. With DeepCool pushed out of the US market, Thermalright and ID-Cooling have spent the last few years undercutting each other by a few dollars per SKU, and the loser of that fight is usually whoever ships the louder fan. ID-Cooling's answer is to spend a little margin on acoustics instead of another ARGB strip.

Acoustics Was the Complaint, So Acoustics Became the Brief

The clearest tell is the 620 AD, a dual-tower revision pegged at $55. ID-Cooling says noise was the number one complaint it received, so the blades were reshaped with a more gradual curve and the angle where each blade meets the hub was changed. Neither is exotic engineering; both are the kind of change you make after enough people tell you the product is unpleasant to sit next to.

The cooler also keeps the details that made the original twin-tower design work. The front fan has three clip-in positions for memory clearance, and the two fans are deliberately different thicknesses — 28mm outside, 30mm inside — so static pressure stays high through a double fin stack. No release date was given, and the company's own guess at the time was late in the year.

Soldered Fin Stacks and Pogo Pins

The A720 AD is the more expensive experiment at around $70, and it exists because the original A720 was one of the best value towers on the market — close enough to Noctua on thermals to make the price gap embarrassing. The revision solders the fin stack to the heatpipes and replaces the fan cable with pogo pins that contact a pad on the tower. A fan with no cable is one less thing to route, snag or forget to plug in.

On the soldering, the industry still argues with itself: some vendors claim a measurable gain, others say it buys nothing but durability. ID-Cooling puts its own figure at about 2 degrees better at 280W against the old model, which is a manufacturer's number and should be treated as one. The fans move to PBT with roughly 30 percent glass fibre instead of the liquid crystal polymer used on premium blades. That is a cost decision, and it caps how tight the tip clearance can get, because PBT creeps toward the frame as it heat-cycles.

The Radiator That Is Wider Than Its Fans

The SL360 V2 Plus is the one I keep thinking about, because it inverts the usual compromise. The radiator is 140mm wide while the fans are 120mm, a mismatch that exists to leave room for LEDs along the fan edges. To make up for the smaller swept area, ID-Cooling added two water channels and more coolant — 36 grams more in total — and claims roughly 15 percent more surface area than a conventional 360.

The mixture is the detail worth knowing. Propylene glycol sits around 15 percent, on the low side, which is good: the glycol is there for cold storage and freight, and every point of it trades away thermal performance against distilled water. The microfins stop half a millimetre above the floor of the cold plate, a gap Lian Li has been experimenting with at 0.3mm. Closing that gap helps, because the metal gets closer to the die, but thin walls flex and thin walls fail, so the number is a bet rather than an obvious win.

The price is about $190 with a six-year warranty, and there is no offset bracket in the box — a real omission for anyone on a chiplet CPU with an off-centre hot spot.

Four Liquid Coolers, Four Different Bets

The rest of the line-up clusters into a price ladder with one genuinely odd layout in it.

• FX 360 TD Black — $80 for a standard 27mm radiator and 360mm of fans, or $90 with a 240x240 LCD on the block.
• DX 360 — $120 for a 38mm-thick radiator and a 2.8-inch screen, with launch still unannounced.
• DX 360 GDL — 100mm tubes running block-to-radiator with almost nothing in between, a 130mm-wide radiator and 82 grams of extra coolant.

That last one is the interesting failure mode. Short tubes look immaculate in a glass case and they hard-limit where the radiator can go: the top, and only the top. In a very tall chassis that is a worse constraint than it sounds, and the magnetic cap that pops off to hide the tube ends does not change the geometry.

The 410 TD is the other quietly sensible product: a $35 tower with a temperature display on top and a 50mm fin stack, using composite powder-and-groove heatpipes pushed as close to each other as the cold plate allows. It is not the conjoined direct-touch pad Scythe has been showing, but it is the same direction, and it is the sort of feature that makes a budget build feel considered.

What I Think

The scented paste is a distraction and I would rather the company spent the money on a fan hub that does not resonate at 900 RPM. But the direction is right: ID-Cooling has figured out that the value tier is no longer won on price alone, because Thermalright already owns the floor at $15 and nobody is going to beat that by a dollar. What is left to sell is the experience of living with the thing, and the 620 AD's blade work is the first evidence I have seen that they take that seriously.

What I would not buy yet is the SL360 V2 Plus. A wider radiator with smaller fans is a styling solution looking for a thermal justification, and the 15 percent surface claim will not survive contact with a 38mm-thick standard radiator at the same money. The 0.5mm microfin gap is the part I actually want tested, because that is a real engineering decision with a real failure mode, and the difference between 0.5 and 0.3 is the difference between a cooler that lasts six years and one that clogs in three.