Lab Tests

HWM (Malaysia) - - LAB TEST -

Hard Disk Drives /Solid State Drives

– We mount them as sec­ondary stor­age de­vices, and run PCMark7, PCMark Van­tage, and PCMark05. Depend­ing on the SATA in­ter­face that they’re us­ing, we also run trans­fer tests. If the said stor­age de­vice runs on SATA 3Gb/s, a 1GB file is trans­ferred. If it runs on SATA 6Gb/s, a 1GB and 4GB file is trans­ferred.

Graph­ics Cards

– Graph­ics cards are tested by run­ning a num­ber of syn­thetic bench­marks in ad­di­tion to real-world tests. We usu­ally run 3DMark11, 3DMark Van­tage, and Unig­ine’s Heaven 3.0 bench­marks. Once we’re done with those tests, we run the lat­est DirectX 11 games that in­clude DiRT 3 and Bat­man: Arkham City to see how well the card per­forms in real world sit­u­a­tions.

Moth­er­boards

– Moth­er­boards are tested by us­ing our syn­thetic bench­marks that in­clude PCMark7, PCMark Van­tage, and PCMark05. Once the bench­marks are com­plete, we at­tempt to over­clock the CPU and once again run PCMark7 to see just how sta­ble that board is, and how much of a per­for­mance gain there is.

Speak­ers and Home The­ater Sys­tems

– When a speaker sys­tem comes to us, we usu­ally burn-in the speak­ers by play­ing some mu­sic on it for a cou­ple of days. Once burnt-in, we play a va­ri­ety of mu­sic gen­res on it to see how well it per­forms in these dif­fer­ent gen­res. For Home The­ater sys­tems, movies are also run, to see how close to a cin­e­matic ex­pe­ri­ence is ob­tained.

Note­books/Ul­tra­books and Desk­tops

– Note­books/Ul­tra­books and desk­tops are tested by run­ning PCMark7, PCMark Van­tage, and PCMark05. Depend­ing on the specs, we may also run games, a syn­thetic GPU bench­mark, and Full HD movies on them to see how well they per­form. Bat­tery life on note­books and Ul­tra­books is tested by

run­ning Pow­er­mark.

Dis­plays/TVs

– When test­ing dis­plays and tele­vi­sions, we usu­ally let the dis­plays (es­pe­cially LCDs) to warm up a lit­tle be­fore pro­ceed­ing with our test­ing. This is done so as to get the most ac­cu­rate color re­pro­duc­tion the dis­play or TV has to of­fer. We test dis­plays by open­ing text files to check for bleed­ing, and our Gretag Mac­beth chart to see color re­pro­duc­tion ac­cu­racy. For TVs, we run sev­eral Full HD movies and look for ghost­ing ef­fects, while keep­ing an eye on gen­eral im­age qual­ity.

Cam­era/Cam­corders

– When­ever a cam­era comes in for a re­view, we first take a pic­ture of our Gretag Mac­beth chart for color re­pro­duc­tion, ISO per­for­mance and get a gen­eral idea of over­all pic­ture qual­ity. We then head out­side to grab more pic­tures and judge real-world per­for­mance. Dur­ing our real-world tests, we’ll also ex­per­i­ment with the var­i­ous unique fea­tures of the cam­era.

Print­ers

– For print­ers, we print var­i­ous pages depend­ing on what sort of printer we’re test­ing. Mono­chrome print­ers are tested by print­ing a 25-page black and white text doc­u­ment, an eight-page PDF, and one black and white photo. For color print­ers, the same 25-page black and white text doc­u­ment and eight­page PDF in ad­di­tion to a 25-page doc­u­ment with colored im­ages and the Gretag Mac­beth chart is printed. Each print task is timed. Lastly, for All-In-One print­ers, a colored im­age is scanned, in ad­di­tion to the above said prints.

Net­work At­tached Stor­age (NAS)

– Test­ing NAS de­vices con­sist of us trans­fer­ring a 1GB file from a host PC to the de­vice, and tim­ing the amount of time needed for that process. Other in­ter­est­ing fea­tures of the NAS is also tested.

Power Sup­ply Units (PSUs)

For PSUs, our ob­jec­tive is to see how ef­fi­cient a PSU is. First, we con­nect the PSU to our test­bed as well as a Power Me­ter, and take note of the phan­tom power con­sump­tion. We then power up our test­bed and leave it on idle for five min­utes be­fore tak­ing an­other read­ing. Fi­nally, we run Bat­man Arkham City to see just how much the PSU out­puts, and if the sup­ply fluc­tu­ates a lot.

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