CWT PUC1500V 1500W PSU Review

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Product: PUC1500V
Manufacturer: CWT
Supplied by: CWT
Price: 367USD/RM1340
Launch Date: NA

As we know that high end PSU is getting more powerful with greater wattage to support all kind of hardcore hardware that requires huge amount of power such as phase cooling, dual or quad SLI/Crossfire and etc. Today we will bring you a highest wattage PSU in the market right now; 1500W from CWT which is an OEM PSU manufacturer for some famous PSU brands.

Company Profile

CWT has been both developing and producing its own brand and serving its strategic partners in key countries with quality switching power supply for PC manufacturing. At the beginning of the year 2005, we sincerely hope all of you have prosperity year than before.

CWT group believe our commitment to reaching the requirement of society in the IT world will come true shortly. Channel Well Technology Co is an ISO9001 certificated manufacturer and specialized in switching power supplies manufacturing for PC, IPC and Telecommunication peripherals. Channel Well Technology Group has become the world's leading switching power supply manufacturer for PC, IPC and telecommunication.

Features

▪ 1500W
▪ EPS12V 2.91
▪ 8 Output Voltage
▪ Silent Fan Speed Control
▪ Build in DC remote ON/OFF, PG/PF TTL signal
▪ Operating temperature range from 0℃ to 50℃
▪ Harmonic: IEC-1000-3-2 CLASS D
▪ MTBF 100Khrs minimum at 25℃
▪ Meet FCC: Class B
▪ Meet CISPR22: Class B
▪ Meet BSMI : Class B
▪ Meet CUL(UL60950)
▪ Meet TUV(EN60950)
▪ Meet CB(IEC950)
▪ Meet CE
▪ Meet CCC
▪ Meet NVIDIA SLI-Ready certified (the 8800 Ultra level)
▪ Meet ATI CrossFire-Ready certified

Specifications

▪ Input Voltage: 230V.
▪ Efficiency: 80% (min.) at full load(typical) .
▪ Input Current: 230Vac / 10A max.
▪ Inrush Current: 65A max. when AC input 115Vac at 250C cold start.
▪ Input Frequency: 47Hz~63 Hz.
▪ Leakage Current: 3.5mA max.

Native Cable

1 x 20+4-pin ATX
1 x 4+4-pin EPS12V
1 x 8-pin EPS12V
1 x 8-pin and 6-pin PCI-E

Modular Cables

3 x 6-pin PCI-E
3 x 8-pin PCI-E
2 x SATA power cables with four connectors
2 x Molex power cables with four connectors + 1 x FDD

Outputs

Regulations

The rest of the specification of this PUC1500V can be downloaded from here -> LINK

Package & Contents

CWT is an OEM manufacturer where PSU is one of their major products hence the sample that we received do not come with any retail packaging with the nice printing that we always see it on other retail PSU. CWT packs PUC1500V with a pure white packaging box which we believe it should be one of their client packaging box as CWT doesn't officialy sell their PSU under CWT brand maybe to avoid direct competition with their clients.

Since CWT is an OEM manufacturer, PUC1500V doesn't come with any other accessories like power cord, screws and as well as the user's manual. If you are looking for the specification of this product, you may refer to CWT website or the link that we have provided early. PUC1500V is a modular PSU and CWT has packed these modular cables in a sealed plastic bag nicely.

CWT PUC1500V

CWT PUC1500V is a high end PSU with 1500W hence its casing has longer length than normal PSU; 200mm compare with standard length; 160mm. Height and width will be same as this is standard PSU casing dimension for ATX PSU. For most of the mainstream PSU, it will have dual +12V rails but CWT PUC1500V has total quad +12V rails to enhance the stability of the system where the loads can be shared among these rails without overloading the single or dual +12V rails. CWT PUC1500V +12V1 & +12V2 can support up to 20A while 40A for +12V3 & +12V4. +12V3/V4 rails can deliver more power as these two rails are purposely created for high end graphic card.

As usual honey type of ventilation holes are used for CWT PUC1500V which is standard for good PSU as it has better ventilation than round and rectangular type of ventilation holes. PSU switch is included for most of the PSU except those super cheap PSU. However the PSU switch of CWT PUC1500V is a bit different with bigger and red LED switch; maybe CWT want to alert users that this PSU is a high wattage PSU and need to be careful.

Since CWT PUC1500V is a high end PSU of course it should be equipped with best features and that why CWT PUC1500V comes with modular cable management as well. The female modular cable connectors on the PSU has few colors; red, blue and black. These entire color connectors have their own meaning and the details are stated on a sticker which is pasted at the bottom of these connectors. Black connectors are for peripherals, red and blue connectors are for high end graphic card but different +12V rails.

Here are all the modular power connector cables and there are total ten cables. There are six graphic card modular cables (6pins, 8 pins) and four peripheral modular cables for SATA, Molex and FDD. Since CWT PUC1500V comes with four 8-pin and four 6-pin graphic card modular cables (including one set of 8-pin and 6-pin cables from the PSU itself), it has no problem to support high end graphic card in triple or quad SLI/Crossfire mode.

Compare with other modular PSU, CWT has its own advantages than the rest where CWT has color connectors and label indications. The color connector indication has few colors; red, blue and black so that users will not connect the modular wrongly. The label indication is the labeling sticker on both ends of the modular cables to indicate whether that connector should be connected to the hardware or PSU. Poka-yoke type of connection is always the best since users are not required to think much and error proof.

CWT PUC1500V is a EPS12V 2.91 PSU which is the latest models and the PSU itself already has some native cables which are not modular cables such as ATX 24P/20P, dual EPS12V 8P, 6-pin and 8-pin for graphic card. These native cables are not many so users shouldn't have a hard time to handle the cable management of CWT PUC1500V. All these native or modular cables are sleeved but the quality could be further improved like sleeve the native cables completely till inner of the PSU casing which looks much nicely.

CWT selects 14cm fan for PUC1500V which is from YATE LOON Electronics. This giant fan is able to generate 140CFM airflow with 48.5dB during full load but 50% will only have around 16dB. This massive air flow definitely able to cool down the PSU components very well but the noise is one of the major concern here for users but it will operate accordingly to the PSU load; lower load will generate lower noise and we believe most of the users will not stress their system 100% loading so this problem is vary from case to case.

Here are the inner views of CWT PUC1500V. The heatsink is pretty small maybe due to greater airflow fan that is used for this PSU. Basically CWT PUC1500V is made by dual independant 750W PSU; two separated active PFC circuit. If you have gone through some PSU reviews which is OEM from CWT, then you may notice the black heatsink of CWT PUC1500V are painted with some colors which is not necessary for us unless the PSU casing is transparent type.

Installation, Testing & Performance

PSU Installation is standard and same for CWT PUC1500V but users may need to check whether their casing is able to fit this CWT PUC1500V PSU or not as it has longer length than normal PSU; no problem for tower casing. The cable management of this PSU is easy to manage as well since there aren't many native cables from the PSU and during our test, we only added on one Molex and one SATA modular cables to power up our test rig.

Test Bed
Processor : Intel Core 2 Duo E8300 @ 2.83GHz
Motherboard : Gigabyte GA-EP45-DS3
Heatsink : Gelid Solution Silent Spirit
Memory : 4GB 800MHz DDR2 Memory
Hard Drive : 250GB 7200RPM 8MB Seagate
Graphic Card : OEM Nvidia GeForce 8800GT 512MB
PSU : CWT PUC1500V
Optical Drive : DVD RW HLDS
Operating System : Microsoft XP Pro SP2
Benchmark Software : Prime 95
Ambient Temperature : 28 Degree Celsius

Before we talked about performance of this PSU let us tell you little of the quad +12V rails to ensure everyone is one the same page; +12V1 is for ATX, SATA & Molex, +12V2 is for CPU and +12V3 & +12V4 are for PCI-E. Overall the voltage rails of CWT PUC1500V is quite stable with some variation but it is still acceptable and within the tolerance ranges. For the noise and temperatures, CWT PUC1500V could be further improved because during high load the PSU is quite warm for touching and noisy which are the common issues that can't be avoided for such high power PSU but we do hope CWT will improve the next version of their product; maybe using bigger size of heatsink so that the noise can be reduced.

Conclusion

You may wonder whether is this PSU suit for you or not with its massive power of this CWT PUC1500V as not many people will really need such high wattage PSU. However if you are really planning to get such high wattage PSU then you may really take a look of this CWT PUC1500V as most of the high end PSU are OEM products of CWT; they looks very similar from outer and as well as innner. With its price of 367USD, CWT PUC1500V isn't really cheaper than its OEM products where this may be the suggested MSRP from CWT but you can always get a better price from some online retailers. CWT PUC1500V also comes with other great features as we discussed previously like quad +12V rails, modular cable, great number of PCI-E connectors and etc.

Pros:
* Massive power wattage with quad +12V rails
* Modular cable system
* Good indication for the cables & connectors
* Four set of VGA PCI-E cables for 8-pin & 6-pin
* 14cm Fan

Cons:
* A bit noise during high load

Thanks to CWT for providing this sample for us to review.