Zalman CNPS9900 MAX & CNPS5X CPU Coolers

Cooling
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COOLING RESULTS: Zalman CNPS9900 MAX

Zalman CNPS9900 MAX
Fan Voltage
SPL@1m
Temp
°C Rise
12V
32~33 dBA
61°C
41
9V
26~27 dBA
62°C
42
7V
20 dBA
65°C
45
6V
16 dBA
67°C
47
5V
13 dBA
69°C
49
°C Rise: Temperature rise above ambient (20°C) at load.

The CNPS9900 MAX generated a thermal rise of 49°C to 41°C with the fan at 12V to 5V. While these results aren't great, the heatsink retained much of its performance as the fan speed was decreased, particularly from 7V down to 5V.

Single Fan CPU Coolers (stock fan): °C Rise Comparison
SPL (dBA@1m)
18
17
16
15
14
13
12
11
Scythe Yasya
40
-
-
-
-
43
-
-
Cogage TRUE Spirit
-
41
-
43
-
46
-
Zalman CNPS10X Quiet
-
-
-
-
42
-
47
-
Scythe Grand Kama Cross
-
41
-
-
44
-
49
Coolermaster Hyper 212 Plus
41
-
-
-
-
44
54
-
Scythe Ninja 3
44
-
-
-
-
46
-
-
Titan Fenrir
45
-
47
-
-
-
Zalman CNPS9900 MAX
-
-
47
-
-
49
-
-
Coolermaster V8
-
-
-
-
49
-
56
-
AC Freezer Xtreme Rev.2
-
55
-
-
-
62
-

Compared to other large, single fan CPU coolers all using their stock fans, the CNPS9900 MAX fares poorly, placing just two positions above the Coolermaster V8 and the last place Arctic Cooling Freezer Xtreme Rev.2. These two heatsinks also use a fan between two banks of fins — it seems to be inherently difficult to make an effective CPU cooler using this approach.

Single Fan CPU Coolers (ref. 120mm fan): °C Rise Comparison
Heatsink
Fan voltage / SPL @1m
12V
9V
7V
16 dBA
13 dBA
12 dBA
Thermalright Ultra-120 eXtreme Rev.C
38
40
43
Prolimatech Megahalems
38
41
44
Noctua NH-U12P
39
42
44
Scythe Mugen-2
39
42
45
Cogage TRUE Spirit 1366
40
42
45
Prolimatech Armageddon
40
42
46
Zalman CNPS10X Quiet
40
43
46
Scythe Yasya
41
43
47
Thermalright Ultra-120 eXtreme
40
43
48
Cooler Master Hyper 212 Plus
41
44
48
Thermalright Ultra-120
42
45
49
Titan Fenrir
43
46
50
Scythe Ninja 3
44
47
49
Noctua NH-C12P
43
47
51
Zalman CNPS10X Extreme
43
47
53
Zalman CNPS10X Flex
45
50
54
Zalman CNPS9900 MAX (stock fan)
6V
5V
n/a
47
49
Cooler Master V8
46
50
54
Scythe Grand Kama Cross
45
52
57
Arctic Cooling Freezer Xtreme Rev.2
49
52
58
Scythe Kabuto
51
53
60

Pit against heatsinks using our reference Nexus 120 mm fan, it's more of the same with the MAX surpassed by most reviewed coolers. With the Nexus fan, the V8 draws even with the MAX, while the Freezer Xtreme trails it by only 2°C and 3°C respectively at the 16 and 13 dBA@1m levels. It's not really a fair fight, as the MAX's fan cannot be replaced with a better model without significant modification.



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