SilverStone · full tower · 100 L

Alta G1M cooler clearance

The SilverStone Alta G1M takes air coolers up to 185 mm tall and radiators up to 0 mm, so 41 of the 70 coolers in this database fit, up to the 168 mm Noctua NH-D15 G2.

Reviewed by Farrukh Sufyan SarwarHow we estimate temperaturesModel v1.2 · data updated September 18, 2026

Cooler height: 185 mm; fits the tallest towers
Top radiator: none; largest at the top mount
Front radiator: none; largest at the front mount
Rear radiator: none; exhaust position
GPU length: 330 mm; with front fans installed
Coolers that fit: 41 / 70; 29 do not

What fits, in one paragraph

Air coolers up to 185 mm clear the side panel; 41 of 41 air coolers in the database do, and the tallest is the 168 mm Noctua NH-D15 G2. Leave 3–5 mm for thick fans and glass-panel inserts. There are no radiator mounts, so AIOs do not fit.

Form factor notes

A full tower at 100 L; nearly every tower cooler fits, so choose on thermal headroom and RAM clearance rather than height.

All 70 coolers: does it fit?

Cooler fitment in the SilverStone Alta G1M
Cooler	Type	Height / rad	Margin	Fit
Noctua NH-D15 G2	Dual-tower air cooler	168 mm	+17 mm	Fits
Thermalright Peerless Assassin 140	Dual-tower air cooler	157 mm	+28 mm	Fits
Thermalright Peerless Assassin 140 Digital	Dual-tower air cooler	157 mm	+28 mm	Fits
be quiet! Dark Rock Elite	Dual-tower air cooler	168 mm	+17 mm	Fits
be quiet! Dark Rock Pro 6	Dual-tower air cooler	168 mm	+17 mm	Fits
Cooler Master MasterAir MA624 Stealth	Dual-tower air cooler	165 mm	+20 mm	Fits
be quiet! Dark Rock Pro 5	Dual-tower air cooler	168 mm	+17 mm	Fits
ID-Cooling FROZN A620 Pro SE	Dual-tower air cooler	157 mm	+28 mm	Fits
Cooler Master Hyper 622 Halo Black	Dual-tower air cooler	157 mm	+28 mm	Fits
Thermalright Phantom Spirit 120 EVO	Dual-tower air cooler	158 mm	+27 mm	Fits
Noctua NH-D15	Dual-tower air cooler	165 mm	+20 mm	Fits
Scythe Fuma 3	Dual-tower air cooler	154 mm	+31 mm	Fits
Thermalright Peerless Assassin 120 Digital ARGB	Dual-tower air cooler	157 mm	+28 mm	Fits
Thermalright Peerless Assassin 120 Vision MAX ARGB	Dual-tower air cooler	157 mm	+28 mm	Fits
Thermalright Phantom Spirit 120 SE	Dual-tower air cooler	154 mm	+31 mm	Fits
Thermalright Peerless Assassin 120 SE	Dual-tower air cooler	155 mm	+30 mm	Fits
Arctic Freezer 36	Single-tower air cooler	159 mm	+26 mm	Fits
Arctic Freezer 36 A-RGB	Single-tower air cooler	159 mm	+26 mm	Fits
Noctua NH-D15S	Dual-tower air cooler	165 mm	+20 mm	Fits
Thermalright Peerless Assassin 120	Dual-tower air cooler	155 mm	+30 mm	Fits
Noctua NH-U12A	Single-tower air cooler	158 mm	+27 mm	Fits
Thermalright Assassin King 120 SE	Single-tower air cooler	160 mm	+25 mm	Fits
Noctua NH-D12L	Dual-tower air cooler	145 mm	+40 mm	Fits
Thermalright Assassin X 120 R SE	Single-tower air cooler	155 mm	+30 mm	Fits
be quiet! Dark Rock 5	Single-tower air cooler	162 mm	+23 mm	Fits
Thermalright Burst Assassin 120	Single-tower air cooler	155 mm	+30 mm	Fits
be quiet! Pure Rock Pro 3	Single-tower air cooler	155 mm	+30 mm	Fits
ID-Cooling SE-224-XTS	Single-tower air cooler	154 mm	+31 mm	Fits
Noctua NH-U12S	Single-tower air cooler	158 mm	+27 mm	Fits
Thermalright Assassin X 120 Refined SE	Single-tower air cooler	148 mm	+37 mm	Fits
Vetroo V5	Single-tower air cooler	158 mm	+27 mm	Fits
Cooler Master Hyper 212 Halo Black	Single-tower air cooler	154 mm	+31 mm	Fits
Cooler Master Hyper 212 Black Edition	Single-tower air cooler	159 mm	+26 mm	Fits
Thermalright AXP120-X67	Low-profile air cooler	67 mm	+118 mm	Fits
ID-Cooling IS-55	Low-profile air cooler	55 mm	+130 mm	Fits
Scythe Big Shuriken 3 Rev.B	Low-profile air cooler	69 mm	+116 mm	Fits
Noctua NH-L12S	Low-profile air cooler	70 mm	+115 mm	Fits
be quiet! Pure Rock Low Profile	Low-profile air cooler	45 mm	+140 mm	Fits
Thermalright AXP90-X47	Low-profile air cooler	47 mm	+138 mm	Fits
Noctua NH-L9a-AM4	Low-profile air cooler	37 mm	+148 mm	Fits
Noctua NH-L9i-17xx	Low-profile air cooler	37 mm	+148 mm	Fits
Arctic Liquid Freezer III Pro 420 A-RGB	420 mm AIO liquid cooler	420 mm rad	—	Does not fit
Arctic Liquid Freezer III Pro 360	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
Arctic Liquid Freezer III Pro 360 A-RGB	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
Corsair iCUE Link Titan II 360 RX RGB	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
Corsair iCUE Link Titan 360 RX RGB	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
NZXT Kraken Elite 360 RGB	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
Thermalright FW360 ARGB	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
Thermalright Frozen Infinity 360	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
Lian Li Galahad II Trinity 360	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
NZXT Kraken Plus 360	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
Corsair Nautilus 360 RS	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
MSI MAG CoreLiquid I360	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
Thermalright Frozen Notte 360 ARGB V2	360 mm AIO liquid cooler	360 mm rad	—	Does not fit
Lian Li Galahad II LCD 280	280 mm AIO liquid cooler	280 mm rad	—	Does not fit
NZXT Kraken Elite 280 RGB	280 mm AIO liquid cooler	280 mm rad	—	Does not fit
NZXT Kraken Plus 280	280 mm AIO liquid cooler	280 mm rad	—	Does not fit
Cooler Master Atmos II Stealth 240	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
Corsair iCUE Link Titan 240 RX RGB	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
Corsair Nautilus 240 RS ARGB	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
ID-Cooling FX240 Pro	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
Lian Li Galahad II Trinity 240	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
NZXT Kraken Plus 240	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
Thermalright Frozen Infinity 240	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
Cooler Master 240 Core II	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
MSI MAG CoreLiquid A13 240	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
Thermalright Aqua Elite 240 V3	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
Thermalright Frozen Magic 240 ARGB V2	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
Thermalright Frozen Notte 240 ARGB V2	240 mm AIO liquid cooler	240 mm rad	—	Does not fit
Thermalright Aqua Elite 120 V3	120 mm AIO liquid cooler	120 mm rad	—	Does not fit

Terms used on this page

CPU cooler height: The installed height of an air cooler from the motherboard, compared against the case's published CPU cooler clearance. Coolers at or above 160 mm exclude many compact Micro-ATX and tempered-glass mid-towers.
AIO liquid cooler: A sealed closed-loop liquid cooler with a pump block and a 120–420 mm radiator. Radiator length determines case compatibility; thickness plus fans determines top-mount clearance above the VRM heatsinks.
RAM clearance: The tallest memory module that fits under an air cooler's front fan in its stock position. Dual-tower coolers with less than 42 mm clash with tall RGB kits (typically 44 mm) unless the fan is raised.