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Noctua NH-D15S versus NH-D15

sneekypeet

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I think Noctua says it best....

Tailored to provide superior RAM and PCIe compatibility, the NH-D15S is an asymmetrical single fan version of Noctua’s award-winning flagship model, the NH-D15. Thanks to its asymmetrical design, the NH-D15S clears the top PCIe slot on most µATX and ATX motherboards. At the same time, the single fan setup and recessed lower fins guarantee 100% RAM compatibility with memory modules of up to 65mm height. Users who have sufficient room can also upgrade the cooler with either a 120mm or round 140mm fan on the front fin stack for further improved performance in dual fan mode. Topped off with the trusted, pro-grade SecuFirm2™ multi-socket mounting system, Noctua’s proven NT-H1 thermal compound and full 6 years manufacturer’s warranty, the NH-D15S forms a complete premium quality solution that combines dual tower efficiency with excellent compatibility and flexible upgrade options.

Found on the product page...http://noctua.at/en/nh-d15s

You may find the D15S to be a degree or two below the original in performance due to the lack of the second fan, but to many, the RAM clearance trumps that difference.
 

FreedomEclipse

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Shouldnt matter. Only real difference is the D15 comes with two fans and the D15S somes with one fan but a bigger gap in the middle to possibly fit a thicker fan.
 

eidairaman1

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If you care about the full potential out of the ram slots, Id go with the S model. If not, either or is fine.
 
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Not only about that... the D15s is tilted more up so the upper pcie slot is free too.
 
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Get the S, Then you have more options for your ram.
This reviewer added a fan to a NHD15S and it was identical performance to the NHD15.
 
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Looking at some pics on line,does the mother board have to be out to install the bracket? Its the x shape bracket I'm talking about.
 
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It depends on your case. If the case has a cutout on the backside of the motherboard tray, then you won't need to remove the motherboard from the case. If you remove the back panel of the case and there is no cutout, then you will have to remove your motherboard.
 
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Thanks, wish I looked closer before I put the board in. Have no cutout,so out comes the board. Guess the last one I did had pushpins. LOL
 

eidairaman1

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Oversize coolers-always pull the board.
 
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