SilverStone’s Raven RVZ01-B is a slim Mini-ITX case, and published specs for the RVZ01 family list about 83mm of cooler space, so towers are out. This guide to the best cpu coolers for rvz01b builds compares seven low-profile coolers from 45mm to 70mm, sorted by how they fit with or without a fan in the case slot above the processor.
Quick verdict
The Noctua NH-L12S is the best fit when the slot above the CPU stays empty: 70mm tall in low-profile mode with a 120mm slim fan. If you run a case fan there, pick the 67mm ID-COOLING IS-67-XT Black or the 65mm Noctua NH-L9x65, which leave more height for a fan mounted above the processor.
- Best overall for the RVZ01B: Noctua NH-L12S.
- Best with a case fan over the CPU: ID-COOLING IS-67-XT Black.
- Best shorter Noctua: Noctua NH-L9x65.
- Best value 120mm low-profile: ID-COOLING IS-55 Black.
- Best copper 92mm option: Thermalright AXP90-X53 Full Copper.
- Best for very low heat loads: be quiet! Pure Rock LP.
- Best budget pick: Thermalright AXP90-X47 Black.
Quick comparison table
Heights below are total cooler heights with the fan, as listed by the manufacturer or Amazon listing. Prices and ratings are Amazon US snapshots from November 2026 that only show each cooler’s price tier and will change. The last column shows how much room each cooler leaves under the 83mm figure listed for the closely related RVZ01-E.
| Cooler | Height | Fan | Heat pipes | Amazon rating, Nov 2026 | Amazon US price, Nov 2026 | Margin under 83mm |
|---|---|---|---|---|---|---|
| Noctua NH-L12S | 70mm | 120mm slim | 4 | 4.7 (about 1,940) | About $75 | 13mm |
| ID-COOLING IS-67-XT Black | 67mm | 120 x 15mm | 6 | 4.5 (about 190) | About $40 | 16mm |
| Noctua NH-L9x65 | 65mm | 92mm slim | Not stated | 4.7 (about 2,970) | About $70 | 18mm |
| ID-COOLING IS-55 Black | 57mm | 120 x 15mm | 5 | 4.5 (about 840) | About $40 | 26mm |
| Thermalright AXP90-X53 Full Copper | 53mm | 92mm slim | 4 | 4.5 (about 150) | About $36 | 30mm |
| be quiet! Pure Rock LP | 45mm | 92mm | 3 | 4.5 (about 140) | About $50 | 38mm |
| Thermalright AXP90-X47 Black | 47mm | 92 x 15mm | 4 | 4.4 (about 120) | About $22 | 36mm |
How we picked the best CPU coolers for RVZ01B builds
This is a research-based list built from manufacturer and retailer spec pages plus our November 2026 Amazon US data, not from installs in the case. A published review of the closely related RVZ01-E lists support for CPU coolers up to 83mm tall, and a fan mounted above the processor uses part of that space.
We could not open SilverStone’s own page or manual, so we treat 83mm as an upper bound, not a target, and favor margin. Every cooler here is 70mm or less, and four leave 26mm or more. Total height includes the fan, because that is what meets the side panel.
We also required LGA 1700 or newer and AM5 or AM4 support, since most current Mini-ITX boards use those sockets. The RVZ01-B is often built around a dedicated GPU, so we favored coolers that move heat well at modest noise, and we noted each one’s power class rather than overstating it.
Product analysis
The seven coolers below run from the largest that fits to the smallest. Larger fans and more heat pipes generally handle more heat at lower noise, so drop down the list only when you need the extra clearance. Each entry lists verified height, fan, sockets and the trade-off that matters most in this slim case.
Noctua NH-L12S
The NH-L12S is the strongest fit for an RVZ01-B with an empty slot above the CPU. QuietPC lists a 70mm height in low-profile mode with an NF-A12x15 slim 120mm fan, and notes 95mm if you move a 25mm fan on top, which this case cannot take. Amazon’s listing adds four heat pipes.
Sockets cover LGA 1851, 1700, 1200 and 115x plus AM5 and AM4, with a six-year warranty. In low-profile mode it allows RAM up to 35mm tall, so standard low-profile DIMMs are the safe choice. It was rated 4.7 out of 5 from about 1,940 Amazon ratings and listed near $75 on Amazon US as of November 2026.
- Pros: largest fan here, six-year warranty, 70mm fits under 83mm.
- Cons: least height margin here, so a fan above the CPU may not fit; RAM height limit.
Buy if you keep the fan slot above the CPU empty and want the most cooling. Skip if you plan to mount a case fan over the processor.
ID-COOLING IS-67-XT Black
The IS-67-XT Black suits RVZ01-B owners who want a 120mm fan and six heat pipes while leaving about 16mm under the 83mm figure. The Amazon listing gives a 67mm total height, a copper base, six heat pipes and a 120x15mm PWM fan rated at 1800rpm and 67.58 CFM.
Sockets listed are LGA 1851, 1700, 1200 and 115x plus AM5 and AM4. If you plan to mount a fan above the CPU, measure your exact setup first. It was rated 4.5 out of 5 from about 190 Amazon ratings and listed near $40 on Amazon US as of November 2026, a smaller sample than the Noctuas.
- Pros: six heat pipes, 120mm fan, 67mm height.
- Cons: less height margin than the 92mm options; fewer ratings; warranty not stated in the listing.
Buy if you want the most capacity possible with a case fan over the CPU. Skip if your own clearance measurement comes in below about 70mm.
Noctua NH-L9x65
The NH-L9x65 is the Noctua route for builds that need extra height margin. Its Amazon listing gives a 65mm total height, an NF-A9x14 slim 92mm PWM fan rated up to 2500rpm and 23.6 dBA, NT-H1 paste and SecuFirm2 mounting, with LGA 1851, 1700, 1200 and 115x plus AM5 and AM4 support.
Noctua’s listing describes it for low-to-moderate heat loads, so match it to 65W-class chips such as the Ryzen 5 7600, which Wikipedia lists at 65W. Intel’s i5-14400 has a 65W base power but a 148W maximum turbo power, so expect fan ramping under heavy loads. It was rated 4.7 out of 5 from about 2,970 Amazon ratings and listed near $70 as of November 2026.
- Pros: 65mm, strong Noctua mounting, large rating base.
- Cons: 92mm fan; limited to modest heat loads by Noctua’s own guidance.
Buy if you want a proven 65mm cooler for a 65W chip. Skip if you run a high-power chip at full turbo for long periods.
ID-COOLING IS-55 Black
The IS-55 Black is the value 120mm option with real height margin. ID-COOLING lists 120x120x57mm, a 120x15mm fan, five 6mm heat pipes and a 150W rating, and the Amazon listing gives 54.6 CFM at 13.8 to 31.2 dBA. Sockets cover LGA 1851, 1700, 1200 and 115x plus AM5 and AM4.
At 57mm it leaves about 26mm under the 83mm figure listed for the RVZ01-E, which helps if your side panel or board layout differs. The 150W figure is ID-COOLING’s own rating. It was rated 4.5 out of 5 from about 840 Amazon ratings and listed near $40 on Amazon US as of November 2026.
- Pros: 120mm fan at 57mm, five heat pipes, good rating base.
- Cons: fewer heat pipes than the IS-67-XT; slim fan gets loud near max speed.
Buy if you want a 120mm low-profile with height to spare. Skip if you have the clearance for the NH-L12S and want Noctua’s warranty.
Thermalright AXP90-X53 Full Copper
The AXP90-X53 Full Copper suits small RVZ01-B builds that want a dense copper heatsink at a moderate price and plenty of height margin. The Amazon listing gives 94.5x95x53mm, a pure copper heatsink, four 6mm heat pipes and a TL-9015R 92mm fan rated at 2700rpm, 42.58 CFM and 22.4 dBA.
The listing details cover LGA 1700, 115x and 1200 plus AM4 and AM5, with LGA 1851 named in the listing title only. Its 95mm footprint stays clear of RAM on most Mini-ITX boards. It was rated 4.5 out of 5 from about 150 Amazon ratings and listed near $36 on Amazon US as of November 2026.
- Pros: copper heatsink, 53mm height, compact footprint.
- Cons: 92mm fan at a high top speed; LGA 1851 support only in the title.
Buy if you want a compact copper cooler with plenty of height margin. Skip if you can fit a 120mm-fan cooler, which moves more air at lower rpm.
be quiet! Pure Rock LP
The Pure Rock LP is for the lowest-power RVZ01-B builds, such as a home theater PC. The Amazon listing gives a 45mm height, three 6mm heat pipes, a 92mm fan with a maximum of 30.6 dBA and a 100W rating, with Intel 1700, 1200 and 115x plus AM5 and AM4 support.
LGA 1851 is not listed, so it is not for a Core Ultra board. A 100W rating fits a 65W chip with some margin but leaves little room for long turbo loads. It was rated 4.5 out of 5 from about 140 Amazon ratings and listed near $50 on Amazon US as of November 2026, which is high for its capacity.
- Pros: 45mm, simple fit, quiet-focused brand.
- Cons: 100W rating; no LGA 1851; pricey for its size.
Buy if your RVZ01-B is a media or office box with a 65W chip. Skip if you game on a chip with high turbo power.
Thermalright AXP90-X47 Black
The AXP90-X47 Black is the budget pick. Thermalright’s page lists a 94.5x95x32mm heatsink plus a TL-9015 92x92x15mm fan at 2700rpm and 22.4 dBA, which adds up to about 47mm, and four 6mm heat pipes. Sockets cover LGA 115x, 1200, 1700 and 1851 plus AM4 and AM5.
The black version was rated 4.4 out of 5 from about 120 Amazon ratings and listed near $22 on Amazon US as of November 2026; the full-copper version costs more. It is the cheapest way to stay far below the case limit, but its small fan has to spin fast with a warm chip.
- Pros: lowest price, 47mm, current socket list.
- Cons: small fan; smaller rating base; aluminum fins on the black version.
Buy if you need a cheap, very low cooler for a 65W chip. Skip if noise under load matters, where the IS-55 is the better value.
Buying guide
In the RVZ01-B, height is the first filter, then fan size, then socket and RAM fit. The four checks below walk through each in order, so you do not buy a cooler that fits on paper but hits the side panel or blocks a memory slot once the Mini-ITX board is in place and the panel goes back on.
Height: about 83mm, less with a fan
A published RVZ01-E review lists CPU coolers up to 83mm tall. We could not confirm the RVZ01-B figure on SilverStone’s site, and a fan above the CPU reduces usable height, so check SilverStone’s manual and measure from the board to the panel before ordering.
Noctua’s study of more than 100 cases found many published clearances were off, which is another reason to leave margin. If you keep the slot above the CPU empty, the 70mm NH-L12S fits comfortably. With a fan there, choose one of the shorter coolers and measure first.
Choosing the best CPU coolers for RVZ01B by fan size
A 120mm slim fan moves more air at a given speed than a 92mm slim fan, so the NH-L12S, IS-67-XT and IS-55 should run quieter than the 92mm coolers at the same load. The 92mm options earn their place only when height or board layout forces a smaller cooler.
Low-profile fans are thin, often 14mm to 15mm, and their published noise figures are maximums at full speed. In a case this compact, a steady fan curve in the BIOS will make more difference to perceived noise than a few dBA on a spec sheet.
Sockets and RAM
All seven coolers list AM5, AM4 and LGA 1700 support in the sources we read, and most also list LGA 1851 for Core Ultra boards. The Pure Rock LP does not list LGA 1851, and the AXP90-X53 names it only in the listing title, so Core Ultra builders should favor the Noctuas or ID-COOLING models.
Wide 120mm coolers can sit over the memory slots on Mini-ITX boards. QuietPC gives the NH-L12S a 35mm RAM limit in low-profile mode, so standard-height DIMMs are the safe choice. The 92mm coolers, at about 95mm square, leave most memory slots clear.
Matching cooler to processor power
Low-profile coolers trade capacity for height, so the processor you pair with them matters more here than in a full-size case. Noctua describes the NH-L9x65 for low-to-moderate heat, and be quiet! rates the Pure Rock LP at 100W. A 65W chip like the Ryzen 5 7600 is a natural match for most of this list.
High-turbo chips are harder. Intel lists the i5-14400 at 65W base power but 148W maximum turbo power, so in the RVZ01-B consider lowering power limits in the BIOS. That keeps the fan calm and avoids throttling, at a small cost in peak speed.
FAQ
These are the questions RVZ01-B owners ask most about cooler fit. The answers draw on the clearance figures and specs cited above. SilverStone’s own page was not reachable for us, so treat every case height as a target to confirm with the manual and your own measurement before buying.
Can a tower cooler fit in the RVZ01B?
No standard tower cooler fits. Even compact towers are well over 100mm tall, while a published RVZ01-E review lists about 83mm for this case family. Stick to low-profile coolers like those above, and check total height including the fan, which is the dimension that meets the side panel.
Can I use an AIO liquid cooler in the RVZ01B?
We could not confirm AIO support from SilverStone’s page or manual, and we found no documented RVZ01-B build with one. Space above the CPU is tight for a radiator, fan and tubing, so a low-profile air cooler is the safer, simpler choice for this case.
Does the RVZ01B version differ from the RVZ01-E?
The RVZ01-E review we read lists coolers up to 83mm, but we could not open SilverStone’s pages to compare the two versions side by side. Treat 83mm as a guide rather than a guarantee for the RVZ01-B, and check the manual and measure your own case before you buy.
Conclusion
For most RVZ01-B builds, buy the Noctua NH-L12S and keep the slot above the CPU free: at 70mm it sits under the 83mm figure listed for the RVZ01-E with a 120mm fan and a six-year warranty. If you need a case fan over the processor, switch to the 67mm ID-COOLING IS-67-XT Black, and measure your clearance first.
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