Agent 001 - Cabinet and Power Supply

Published Date
25 - Mar - 2009
| Last Updated
25 - Mar - 2009
Agent 001 - Cabinet and Power Supply

Get To The Body Shop

Agent001 Takes You Cabinet And Power Supply Shopping


If the combo of motherboard and CPU were said to be the sole of your PC then the cabinet and power sup­ply (or PSU as it is called) duo would be the body. These are very important components but sadly ignored mostly due to ignorance on the part of both buyers and some vendors. Most people in India shop for a cabinet and a power supply the same way people buy pota­toes; at least with potatoes some selec­tion procedures exist; while for cabi­nets and PSUs they insist on the cheap­est options available and a skimpy budget is allocated for the same. At the very most the consumer may ask the shopkeeper what the wattage rating of the PSU is, or how many fans does the cabinet come with. Vendors are, of course more concerned with prof­it margins and commissions so they don’t always have your best interests in mind. However, as someone buying a PC, you should pay very close attention to both these components; because your shiny new processor, mother­board and graphics card will surely care. Inadequate power, dirty power, insufficient cooling, overheating and system stability are just some of the thoughts you should keep in mind.


As a technology enthusiast, I’ve seen, used and owned a number of PSUs, (or SMPS’ as they’re called), and cabi­nets. I’ve also seen el cheapo power supplies going poof and witnessed motherboard, CPU, RAM and HDD failure due to dirty power being supplied. The ill effects of overheating of CPUs, graphics cards, HDDs and even RAM as a result of substandard designs or prod­uct quality. The bottom line is in a country like ours bad electricity supply and over­heating accounts for most of the PC failures which occur; the other major reason being mishan­dling.


Heating as you would know can be caused due to two reasons; one, a particular compo­nent isn’t getting adequately cooled, or two, improper air circulation which causes heat build up. In case of the former you had better watch out. The component that is overheating could get damaged and possibly damage other components as well. In the lat­ter case, chances are you may not have problems for some time since no single component is overheating. But accumulated heat over time causes long term harm of reduced component life and could cause instability in gen­eral. No wonder server farms and main­frames run in low temperature air con­ditioned environments. However, even having an air-conditioner at home will not guarantee thermal bliss although it helps somewhat. The best way to eliminate heating is to use a well venti­lated cabinet.


On to the role of the SMPS aka power supply. Not only does a power supply produce more heat when it can­not adequately power your PC’s compo­nents, but it also reduces its life and lays the foundation for other prob­lems. Suppose you have a 400 watt power supply and your PC draws a steady 360 watts. This means this SMPS is working at 90 per cent of its rated load at all times. Given that most 400 watt power supplies can actu­ally supply only 330 watts or so and you are in serious danger. Either the power supply will overheat and blow up, (I kid you not – this happens), or some of your components aren’t get­ting the necessary power they need, which is akin to them being forced to do the same job with less energy. When I suggest a 650 watt power supply to a reader for a PC that I know will not consume more than 350 watts, I am taking into consideration the fact that stressing an SMPS with close to its max­imum rated load is bad; also the higher the wattage the better the chance of the manufacturer using better mate­rials to build it, although there’s no hard and fast rule. Most manufactur­ers overstate wattage ratings, so two power supplies with rated outputs of 600 watts may well differ in terms of overall performance, heat generation, load capacity and even longevity.


When shopping for a cabinet or a power supply, please rid yourself of the mentality that these components don’t do anything for performance and investing cash on them is just a necessary evil. Think of these binaries as twin protec­tors and facilitators of your PC, and it’s always a good idea to keep at least 10 to 15 per cent of your overall bud­get for a PC on a good power supply and a well ventilated cabinet.


Some vendors will try to fool you by showing off the number of fans or vents a cabinet has – don’t be fooled. Having more fans isn’t always better. Airflow is numero uno priority here and two fans blowing air across each other or facing each other and blowing in opposite directions could actu­ally be worse than no fans at all.Your cabinet needs carefully manip­ulated airflow, designed to divert hot air out of the cabinet through its vents, and suck in cool air from outside – the goal is defined air paths, and not turbulence. Think of a wind tunnel, with controlled direction of airflow – designing such cabinets is a proper science and not everyone gets it right.


As mentioned don’t be fooled by SMPS’ power ratings; one decent tip is to note the weight of the unit – the heavier the better. This is because such units will have better quality and larger heatsinks and power capacitor units. With power supplies brands are quite important, more so than cabi­nets. Modular PSUs are helpful; since you only use the cables you need. This helps prevent cable clutter and opti­mises airflow. Opt for an SMPS with Active PFC (acronym for Active Power Factor Correction). Active PFC uses a dedicated circuit to maintain accurate power distribution. This method of power correction also reduces har­monics (interference) and corrects power delivery according to the AC input voltage. The older method for power correction is called Passive PFC and PSUs based on this should be avoided. In case you intend on set­ting up a gaming rig or have special requirements like SLI or CrossFire sup­port, you need to look at available con­nections on the PSU. Some of the new graphics cards need eight pin power connects, and for a high-end multi GPU setup you may need up to four such connectors. Obviously power sup­plies having support for 3-way SLI and quad CrossFire will have matching power outputs to the tune of at least 1 kilowatt. Another noteworthy factor to consider when choosing power sup­plies is their efficiency which is mea­sured as a percentage. The higher the percentage the higher is the efficiency of the unit. Look for power supplies rated at 80 per cent and above; these are also called 80 units.


The position of cabinets and power supplies is much better than when I last went shopping for either which was around a year back. By this I refer to availability of bigger brands and cer­tain models. Of course your choice of cabinet and PSU depends on the kind of components in your PC. A gaming rig needs a well ventilated cabinet and a powerful PSU; while an HTPC needs a really small box-type cabinet and a compact PSU. Casual users may need something simple and affordable.


If you’re looking to build an HTPC you shouldn’t skimp on the quality of PSU and cabinet. For a case I recommend a really compact ITX forma factor. The cube-shaped cabinets are really aesthetic and look very classy and unobtrusive and I prefer them to the slim HTPC cabinets as these are usually quite high and deep. Zebronics has a small ITX cabinet called Tambi. It features a handle on the front for easy cartage and space for a single ODD and HDD. There’s a small fan provided at the rear for airflow, but this isn’t suitable for a powerful HTPC and should be looked at only if you are building a sub-Rs 30,000 HTPC without a graphics card. This is a no-frills cabinet with reasonable build quality but limited expansion and cool­ing. Antec’s Fusion Remote is available in black and black/silver. This is a beautiful looking and excellently built cabinet with media management software and remote bundled. It’s got space for two HDDs and one ODD. Two adjacent, side mounted 120mm fans provide cooling. The Fusion Remote is priced at Rs 10,500 and is a great deal considering the feature set. Equally hot is the cube form factor Antec NSK1380 EC. This one has support for three HDDs, one ODD and four full-height expansion cards. Cooling is via a rear 120 mm fan. The NSK1280 EC comes with a 350W PSU that’s 80 rated. For Rs 7,500 this is good if you do not need a remote bundle or have your own. CoolerMaster’s Media 260 is another option. It’s built well and the body has a lot of venting and includes media management software and a remote. Priced at Rs 8,000 this is a cheaper alternative to Antec’s Fusion Remote although a PSU isn’t bundled, so that will cost more. I recommend the Antec Fusion Remote.


For a generic good build I recom­mend CoolerMaster’s 690 – this is a great cabinet that is very well priced at Rs 3,500 and looks superb. The black mesh on the front and top looks classy and doubles as a venting system. With support for five 120mm fans and two bundled the 690 is a wonderful cabinet for any kind of user. If you want some­thing really beautiful, the CM Cosmos S is a work of art. With touch controls, all aluminium build, sleek out-of-this-world looks, excellent cooling options that includes a huge 200 mm side fan and a meshed side and front combined with LED fans this Cosmos S is simply lovely. Priced at Rs 13,500 this cabinet demands a pretty penny, but will upgrade the look of your desktop forever. I recommend this for the extreme gamer and/or show-off. Antec’s 900 is another terrific option for Rs 8,000. It’s much lighter and seems flimsily built for that. A lot of venting and cooling means the 900 handles high-end (read hot) gaming rigs well.


For beefy power supplies look at Corsair’s HX and TX series. The HX 620 is a superb option for Rs 6,800 and will power anything other than top-end multi GPU setups (GTX 280s and HD 4870s are too power hungry). Corsair’s HX 1000 sits atop the PSU food chain and will handle anything this side of a 3-way GTX 280 plus overclocked quad core setup. Priced at Rs 13,000 the HX 1000 is for the extreme overclocker or gamer with killer rigs. Corsair’s TX 650 is available for Rs 6,000 and rep­resents the value entrant to the high-end PSUs. All these are superb options for powerful PCs. Corsair’s VX 450 is available for Rs 2,500 and should handle mid-range gaming setups. In fact I recommend this PSU for anyone looking at a decent PC – cheaper PSUs aren’t worth the heartache of dam­aged components later.


CoolerMaster has some good power supplies as well. Their Real Power series are noteworthy and should be considered as secondary alternatives to Corsair’s units. For someone looking at something between Corsair’s HX 620 and HX 1000, CMs Real Power 850W may just catch your fancy at Rs 8,500. Antec also has a lot of PSUs in their Earth Power series, their Earth Power 650 watts is a steal at Rs 6,000. Their Quattro series are even better, but too costly for the performance they offer. A new entrant in India, Tagan is a known PSU manufacturer and has a few decent options; although they’re priced similarly to Corsair and consider­ing the availability of the latter you can skip these entirely.


If I were looking at a top-end setup I’d go with the CM Cosmos S and the Corsair HX 1000 – a heavenly abode for your costly components. Given a bud­get of Rs 10,000 for me it doesn’t get better than a CM 690 coupled with a Corsair HX 620. If you must save cash, the VX 450 is a good option for a mid-range PC with the CM 690 remaining my chassis of choice.



Agent 001Agent 001

I have a keyboard and I'm not afraid to use it, because I have a license to quill.