Microsoft is finally launching the new dual-screen “communication device”, Surface Duo, which was first announced in October 2019’s event. It will be available for pre-order now and released on September 10.
A large 8.1-inch display can be formed by unfolding the devices’ two 5.6-inch Pixel Sense AMOLED screens, similar to the Samsung Galaxy Fold. The hinge allows for 360-degree rotations. The Surface Duo will be running a custom-made UI on top of Android 10, which is powered by a Qualcomm Snapdragon 855 SoC, 6 GB of RAM and up to 256 GB of internal storage. The system can automatically put new apps or content on the other unused screen to boost its multi-tasking ability.
Strangely enough, the Surface Duo is equipped with only one 11 megapixel camera on top of the right display. For comparison, the Galaxy Fold has a total of six cameras scattered around the chassis.
The Surface Duo will be priced starting at $1399.99 USD (MSRP) for the 128 GB model. You can pre-order now on Microsoft Online Store and Best Buy. It will be shipped on September 10.
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With the number of PC components and brands available in the market, it can be extremely confusing for first-time PC builders to figure out all the necessary techniques and details. Below are five useful tips that can hopefully jump-start the process and avoid some common mistakes.
Do research and plan ahead
I would advise you to first determine the purpose of the PC build, which can drastically affect the selection of components. For example, you will need to focus on the multi-core performance of a CPU, if the computer will be primarily used for 3D rendering or video editing. Or getting a more powerful graphics card makes more sense for a smoother gaming experience at higher frame rates. It is often a great idea to read reviews, ratings and discussions in forums and communities, if you do not know where to start.
It is a must to check all the components’ compatibility before purchasing. Especially for the processor and motherboard, the CPU socket and corresponding chipset may be different each new generation. You have to make sure everything fits together physically (size) with the correct mounting hardware or connectors.
Set a budget for the PC build
It is best practice to select the components by following an already-decided budget. Forget about future-proofing. Do not try buying something worse now and get an upgraded version later, which you will end up spending more than purchasing it from the beginning.
I would suggest choosing a cheaper and less flashy PC case, as it will not affect the overall performance. If possible, squeezing a solid-state drive into the budget can be a noticeable improvement in your everyday experience. However, you should NEVER skimp on the power supply. A sketchy PSU can damage other components and cause catastrophic consequences. You should always get the PSU from a reputable and well-established brand, such as Seasonic, Corsair and SilverStone.
PCPartPicker allows you to check/compare all the components’ prices at multiple online stores, like Amazon and Newegg, in one place. The website can also notify you, when a incompatibility or issue is found.
Ground yourself before starting
This is a common mistake for a lot of PC builders. Although it is not likely to happen, electrostatic discharge (ESD) can damage the components by electrical short. If you are working in a dry environment or above carpets, it is recommended to wear an anti-static wrist/ankle strap to ground yourself. If they are not available, you can touch a large metal object on the ground (e.g. steel case) or a power supply connected to an AC outlet for at least 30 seconds periodically throughout the building process.
Assemble the computer before putting it inside the case
Do not rush to install everything into the PC case. You should use the table or the cardboard box of the motherboard as a temporary anti-static test bench, to assemble the computer outside. This can make sure all the components are in working order, which a display signal from the GPU can be found and the system can POST. It will save you much time and effort for troubleshooting.
Keep all boxes for at least 7 days
After you have successfully built the computer, remember to run a couple stress tests/benchmark to ensure the system is stable. Cinebench R20 and AIDA64 are two of the famous applications in the community.
Also, do not throw away the boxes and accessories for at least a week, in case you need to return them back to the store/companies (RMA). Most importantly, you should keep the plastic CPU socket cover, as motherboard manufacturers will not warrant RMA service without one.
Enjoy and have fun building your first DIY PC!
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It is now rare to see anything, that put inside a PC, to have no RGB lighting. The AP120i-PRO from SilverStone is a non-flashy cooling fan, which focuses mainly on performance. How well will it do in our benchmarks?
Specifications
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The SilverStone Air Penetrator AP120i PRO fan is fitted with a double-ball bearing, with a MTBF of about 70,000 hours. Spinning at up to 2000 RPM, it is advertised to generate 74 CFM of airflow and 2.52 mmH2O of static pressure.
Unboxing
The AP120I-PRO is shipped inside a blue cardboard box, with gold accent color at the bottom edge. You can see a photo of the fan’s front. Hardware specifications are listed at the back, on top of all the EAN/UPC barcodes and model number (SST-AP120I-PRO).
Four standard fan screws and four anti-vibration rubber mounts are included in the packaging.
SilverStone AP120I-PRO Fan
The AP120I-PRO has the standard 120 mm x 120 mm size, and 25 mm of thickness. Each of the nine fan blades has a slightly different angle, shape and curvature to allow for lower-pitch noises and better high-pressure performance. The unique fan grill design is the signature feature for an Air Penetrator series fan to focus and push airflow over a longer distance.
There is no anti-vibration pad on the corners to reduce rattling noises between the fan frame and PC cases or CPU coolers. Arrows are marked on the side of the fan to indicate the blades’ rotation and airflow direction. Only a single 4-pin PWM connector is required to power and speed control.
Review
Testing Methodology
To determine the performance of the fan, we will measure both the airflow and CPU temperatures when using in heatsink, as well as its sound levels.
An anemometer is used to record the fan’s airflow in various RPM ranges, including 25%, 50%, 75% and 100%. The results are measured in CFM (cubic feet per minute). The distance between the anemometer and the fan is kept at around 5 cm.
A decibel/sound level meter is also used to measure the fan’s operating noise at 1000 RPM, 50% and 100% fan speeds. Results are shown as dbA. Distance between the decibel meter and the fan is maintained at around 10 cm. Ambient sound level is at around 35 dbA.
The fan is then installed on the air cooler. The CPU, FPU and system cache are stressed using AIDA64. Ambient temperature is around 23°C. The temperature of the CPU package is recorded at full load when the fan is running at full speed.
At the normal 5 cm testing distance, the AP120I-PRO performed really well, placing it at the third position in the chart. Maxing out the fan speed at about 2000 RPM, it could generate up to 64.7 CFM of airflow. Most impressively, the fan could still maintain around 55.12 CFM of airflow at 30 cm, which is the benefit of the air-channeling grill design. For comparison, the Noctua NF-A12x25 and NF-S12A were measured at 45.53 CFM and 33.55 CFM respectively with the same distance.
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Despite designed as case intake fan, the AP120I-PRO is still one of the best cooling fans in our heatsink benchmark. It was barely worse than the Noctua NF-A12x25 (its review here), with temperature difference at 42.1°C. It was closely matched by the Noiseblocker NB-B12P within the margin of error.
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The AP120I-PRO created noticeable, but still acceptable noise at full fan speed at around 60.4 dbA. It is similar to the SilverStone AP124-ARGB (its review here), but is slightly quieter with 200 RPM slower fan speed. Normalizing the speed to 1000 RPM resulted in average noise at 45.8 dbA.
Conclusion
The SilverStone AP120I-PRO performed very great in both of our heatsink and airflow benchmarks. The high airflow and air-channeling fan grill makes it perfectly suitable to use as intake fan, pushing fresh/cool air through the whole length of the PC case. Noise level is decent, but it is not the fan’s strong suit. The all-black, no RGB design may be boring, though can be attractive for non-gamers.
The AP120I-PRO costs $19.99 USD (MSRP) with a 1-year warranty. It is reasonably priced as other premium fans in the market, if not slightly cheaper. The Noctua NF-F12 PWM and be quiet! Silent Wing 3 will charge you $19.95 USD and $25.90 USD respectively. The fan does best at what it aims to achieve, which is to concentrate and channel airflow at long distance up to 60 cm.
You can purchase the fans from your local/online resellers or the links below from Amazon.
Thanks SilverStone for providing us the fan for review. (Review Sample)
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