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[nextpage title=”Introduction”]

The RCX-ZAIO-92 is an inexpensive CPU cooler from Rosewill, with a tower heatsink, three heatpipes and a 92 mm fan. Let’s test its performance.

The cooler box is simple, in black, as you can see in Figure 1.

Figure 1: Package

Figure 2 shows the box contents: the cooler, a small bag of thermal compound, manual and the AMD clip. The clips for use with Intel CPUs come preinstalled in the cooler.

Figure 2: Accessories

Figure 3 shows the Rosewill RCX-ZAIO-92.

Figure 3: The Rosewill RCX-ZAIO-92

This cooler is discussed in detail in the following pages.

[nextpage title=”The RCX-ZAIO-92″]

Figure 4 shows the heatsink from the front. The 92 mm fan comes preinstalled on a plastic frame.

Figure 4: Front view

In Figure 5, you see the side of the cooler, where the three U-shaped 6 mm heatpipes are visible.

Figure 5: Side view

Figure 6 presents the rear of the cooler. Here you can notice that the U-shaped heatpipes are misaligned.

Figure 6: Rear view

The top of the cooler is presented in Figure 7. The fins are plain and almost rectangular.

Figure 7: Top view

[nextpage title=”The RCX-ZAIO-92 (Cont’d)”]

Figure 8 reveals the details of the heatpipes and the copper base plate. You can also see the Intel stock-style preinstalled clips.

Figure 8: Base details

In Figure 9, you can observe the base of the cooler; it is plain and smooth. Here we found an issue: the plastic film that protects the base from scratches and oxidation is glued and, when removed, leaves some glue on the base surface. As we always test the cooler “as is,” i.e., the way an average user should install it, we left the glue remains on the base before mounting the cooler.

Figure 9: Base

Figure 10 shows the ZAIO heatsink after removing the fan.

Figure 10: Without the fan

The 92 mm PWM fan, with its plastic frame, is shown in Figure 11.

Figure 11: Fan

[nextpage title=”Installation”]

Figure 12 shows the clip for use with AMD processors. As already discussed, this CPU cooler comes with the hardware for installation on Intel CPUs preinstalled.

Figure 12: AMD clip

For installing on Intel CPUs, the mounting system is the same as the stock cooler. All you have to do is apply thermal compound, put the cooler in place and press the four holders.

Figure 13: Installed

[nextpage title=”How We Tested”]

We tested the cooler with a Core i7-860 CPU (quad-core, 2.8 GHz), which is a socket LGA1156 processor with a 95 W TDP (Thermal Design Power). In order to get higher thermal dissipation, we overclocked it to 3.3 GHz (150 MHz base clock and 22x multiplier), keeping the standard core voltage (Vcore), which was the maximum stable overclock we could make with the stock cooler. Keep in mind that we could have raised the CPU clock more, but to include the stock cooler in our comparison, we needed to use this moderate overclock.

We measured noise and temperature with the CPU idle and under full load. In order to get 100% CPU usage in all threads, we ran Prime 95 25.11 with the "In-place Large FFTs" option. (In this version, the software uses all available threads.)

We compared the tested cooler to the Intel stock cooler with a copper base (included with the CPU), as well as with other coolers. Note that in the past, we tested coolers with a socket LGA775 CPU, and we retested some "old" coolers with this new methodology. This means you can find different values in older reviews than the values you will read in the next page. Every cooler was tested with the thermal compound that accompanies it.

Room temperature measurements were taken with a digital thermometer. The core temperature was read with the SpeedFan program (available from the CPU thermal sensors), using an arithmetic average of the core temperature readings. During the tests, the left panel of the case was open.

The sound pressure level (SPL) was measured with a digital noise meter, with its sensor placed 4" (10 cm) from the fan. We turned off the case and video board cooler fans so they wouldn’t interfere with the results. This measurement is only for comparison purposes, because a precise SPL measurement needs to be made inside an acoustically insulated room with no other noise sources, which isn’t the case here.

Hardware Configuration

• Proce
  ssor: Core i7-860
• Motherboard: Gigabyte P55A-UD6
• Memory: 2 GB Markvision (DDR3-1333/PC3-10700 with 9-9-9-22 timings), configured at 1,200 MHz
• Hard disk: Seagate Barracuda XT 2 TB
• Video card: Zotac GeForce GTS 250
• Video resolution: 1680×1050
• Video monitor: Samsung Syncmaster 2232BW Plus
• Power supply: Seventeam ST-550P-AM
• Case: 3RSystem L-1100 T.REX Cool

Operating System Configuration

• Windows 7 Home Premium 64 bit SP1

Software Used

• Prime95
• SpeedFan

Error Margin

We adopted a 2 °C error margin, meaning temperature differences below 2 °C are considered irrelevant.

[nextpage title=”Our Tests”]

The table below presents the results of our measurements. We repeated the same test on all coolers listed below. Each measurement was taken with the CPU at idle and at full load. In the models with a fan supporting PWM, the motherboard controlled the fan speed according to core load and temperature. On coolers with an integrated fan controller, the fan was set at the minimum speed on the idle test and at full speed on the full load test.

		Idle Processor			Processor at Full Load
Cooler	Room Temp.	Noise	Speed	Core Temp.	Noise	Speed	Core Temp.
Intel stock (socket LGA1156)	14 °C	44 dBA	1700 rpm	46 °C	54 dBA	2500 rpm	90 °C
Cooler Master Hyper TX3 G1	14 °C	47 dBA	2050 rpm	33 °C	56 dBA	2900 rpm	62 °C
Zalman CNPS10X Extreme	14 °C	45 dBA	1400 rpm	27 °C	53 dBA	1950 rpm	51 °C
Thermaltake Silent 1156	14 °C	44 dBA	1200 rpm	38 °C	49 dBA	1750 rpm	69 °C
Noctua NH-D14	14 °C	49 dBA	1250 rpm	27 °C	49 dBA	1250 rpm	53 °C
Zalman CNPS10X Performa	14 °C	46 dBA	1500 rpm	28 °C	52 dBA	1950 rpm	54 °C
Prolimatech Megahalems	14 °C	40 dBA	750 rpm	27 °C	60 dBA	2550 rpm	50 °C
Thermaltake Frio	14 °C	46 dBA	1450 rpm	27 °C	60 dBA	2500 rpm	50 °C
Prolimatech Samuel 17	14 °C	40 dBA	750 rpm	40 °C	60 dBA	2550 rpm	63 °C
Zalman CNPS8000A	18 °C	43 dBA	1400 rpm	39 °C	54 dBA	2500 rpm	70 °C
Spire TherMax Eclipse II	14 °C	55 dBA	2200 rpm	28 °C	55 dBA	2200 rpm	53 °C
Scythe Ninja3	17 °C	39 dBA	700 rpm	32 °C	55 dBA	1800 rpm	57 °C
Corsair A50	18 °C	52 dBA	1900 rpm	33 °C	52 dBA	1900 rpm	60 °C
Thermaltake Jing	18 °C	44 dBA	850 rpm	34 °C	49 dBA	1300 rpm	60 °C
GlacialTech Alaska	18 °C	43 dBA	1150 rpm	36 °C	51 dBA	1600 rpm	60 °C
Deepcool Gamer Storm	18 °C	43 dBA	1100 rpm	35 °C	48 dBA	1600 rpm	62 °C
Corsair A70	26 °C	56 dBA	1900 rpm	40 °C	56 dBA	1900 rpm	65 °C
Deepcool Ice Blade Pro	23 °C	45 dBA	1200 rpm	38 °C	52 dBA	1500 rpm	64 °C
AC Freezer 7 Pro Rev. 2	23 °C	47 dBA	1750 rpm	44 °C	51 dBA	2100 rpm	77 °C
Corsair H70	27 °C	60 dBA	1900 rpm	37 °C	60 dBA	1900 rpm	61 °C
Zalman CNPS9900 Max	27 °C	55 dBA	1600 rpm	38 °C	58 dBA	1750 rpm	63 °C
Arctic Cooling Freezer 11 LP	25 °C	45 dBA	1700 rpm	51 °C	49 dBA	1950 rpm	91 °C
CoolIT Vantage	26 °C	60 dBA	2500 rpm	37 °C	60 dBA	2500 rpm	62 °C
Deepcool Ice Matrix 600	25 °C	46 dBA	1100 rpm	41 °C	53 dBA	1300 rpm	69 °C
Titan Hati	26 °C	46 dBA	1500 rpm	40 °C	57 dBA	2450 rpm	68 °C
Arctic Cooling Freezer 13	27 °C	49 dBA	1950 rpm	41 °C	53 dBA	2300 rpm	70 °C
Noctua NH-C14	26 °C	52 dBA	1300 rpm	37 °C	52 dBA	1300 rpm	61 °C
Intel XTS100H	26 °C	49 dBA	1200 rpm	42 °C	64 dBA	2600 rpm	68 °C
Zalman CNPS5X SZ	23 °C	52 dBA	2250 rpm	38 °C	57 dBA	2950 rpm	69 °C
Thermaltake SlimX3	21 °C	50 dBA	2700 rpm	46 °C	50 dBA	2750 rpm	99 °C
Cooler Master Hyper 101	21 °C	50 dBA	2600 rpm	38 °C	57 dBA	3300 rpm	71 °C
Antec Kühler H2O 620	19 °C	52 dBA	1400 rpm	34 °C	55 dBA	1400 rpm	58 °C
Arctic Cooling Freezer 13 Pro	20 °C	46 dBA	1100 rpm	36 °C	49 dBA	1300 rpm	62 °C
GlacialTech Siberia	22 °C	49 dBA	1400 rpm	34 °C	49 dBA	1400 rpm	61 °C
Evercool Transformer 3	18 °C	46 dBA	1800 rpm	33 °C	51 dBA	2250 rpm	65 °C
Zalman CNPS11X Extreme	20 °C	51 dBA	1850 rpm	34 °C	56 dBA	2050 rpm	61 °C
Thermaltake Frio OCK	15 °C	44 dBA	1000 rpm	27 °C	64 dBA	2200 rpm	51 °C
Prolimatech Genesis	18 °C	49 dBA	1050 rpm	30 °C	49 dBA	1050 rpm	54 °C
Arctic Cooling Freezer XTREME Rev. 2	15 °C	41 dBA	1050 rpm	32 °C	44 dBA	1400 rpm	60 °C
NZXT HAVIK 140	16 °C	48 dBA	1250 rpm	29 °C	49 dBA	1250 rpm	55 °C
Antec Kühler H2O 920	18 °C	41 dBA	650 rpm	29 °C	64 dBA	2500 rpm	49 °C
Zalman CNP7X LED	18 °C	45 dBA	1950 rpm	33 °C	48 dBA	2150 rpm	58 °C
EVGA Superclock	14 °C	43 dBA	1300 rpm	27 °C	58 dBA	2350 rpm	47 °C
Evercool Transformer 4	15 °C	46 dBA	1500 rpm	26 °C	53 dBA	1950 rpm	52 °C
Xigmatek Dark Knight	18 °C	47 dBA	1700 rpm	30 °C	53 dBA	2150 rpm	57 °C
Xigmatek Aegir	15 °C	44 dBA	1500 rpm	27 °C	50 dBA	1950 rpm	52 °C
Cooler Master GeminII S524	16 °C	45 dBA	1300 rpm	29 °C	53 dBA	1800 rpm	58 °C
Enermax ETS-T40-TA	16 °C	40 dBA	1050 rpm	28 °C	48 dBA	1800 rpm	55 °C
Corsair H80	14 °C	42 dBA	2150 rpm	25 °C	52 dBA	2150 rpm	47 °C
Akasa Venom Voodoo	13 °C	40 dBA	1000 rpm	26 °C	48 dBA	1500 rpm	51 °C
Xigmatek Thor’s Hammer	15 °C	44 dBA	1500 rpm	30 °C	50 dBA	2000 rpm	55 °C
Cooler Master Hyper 612 PWM	19 °C	45 dBA	1400 rpm	30 °C	52 dBA	1900 rpm	54 °C
Xigmatek Loki	17 °C	44 dBA	1850 rpm	34 °C	55 dBA	2750 rpm	60 °C
Cooler Master Hyper 212 EVO	14 °C	44 dBA	1250 rpm	26 °C	50 dBA	1750 rpm	50 °C
Xigmatek Gaia	17 °C	44 dBA	1250 rpm	32 °C	46 dBA	1500 rpm	61 °C
Rosewill RCX-ZAIO-92	21 °C	48 dBA	2050 rpm	37 °C	54 dBA	2600 rpm	68 °C

In the graph below, at full load you can see how many degrees Celsius hotter the CPU core is than the air outside the case. The lower this difference, the better is the performance of the cooler.

[nextpage title=”Main Specifications”]

The main specifications for the Rosewill RCX-ZAIO-92 cooler include:

• Application: Sockets 775, 1155, 1156, 1366, AM2, AM2+, AM3, AM3+, and FM1 processors
• Dimensions: 4.1 x 2.3 x 5.4 inches (105 x 58 x 138.4 mm) (W x L x H)
• Fins: Aluminum
• Base: Copper
• Heat-pipes: Three 6-mm copper heatpipes
• Fan: One 92 mm fan
• Nominal fan speed: 2,500 rpm
• Fan air flow: 54.8 cfm
• Maximum power consumption: 2.5 W
• Nominal noise level: 25 dBA
• Weight: 1.1 lbs (480 g)
• More information: https://www.rosewill.com
• Average price in the US*: USD 17.00

* Researched at Newegg.com on the day we published this review.[nextpage title=”Conclusions”]

The Rosewill RCX-ZAIO-92 CPU cooler has a reasonably good construction quality, but its performance can be considered good only if you compare it to the CPU stock cooler. It should be a good option for people who want to replace the stock cooler for a more powerful one and are on budget.

The good news is that it is quite inexpensive.  Its main competitors in performance among the coolers we already tested, Evercool Transformer 3 and Cooler Master Hyper TX3, are both more than 50% more expensive.

So, if you are looking for an inexpensive and simple cooler to replace the stock cooler in order to have your CPU run a little colder, you can consider buying the Rosewill RCX-ZAIO-92.