Using the opportunity of maintenance, show the (Pin) display (Jin) a (bi) Lenovo's Yang Tian T4900C commercial machine, the summary is the stability of the pictorial, multi-map warning ... traffic please think twice
Lenovo Lenovo T4900c desktop computer (i5-4590 4G 500G DVD set Gigabit LAN WIN system) 21.5 inches 4399 yuan Jingdong direct link Haha, this computer is not the author to buy, but belongs to the unit purchase, but because the author is a computer network maintenance personnel hard to force, so the new computer must be bothered to open up, give everyone a little benefit, by the way Defraud some rewards, haha ​​together to open up.
Appearance Gallery
Lenovo's standard box for business machines, a host, a monitor
July 20, 16th factory, very new, simple configuration instructions I5 4590 cpu 3.3 clock speed, 4G memory, 500G hard drive, WIN7 home version, energy consumption is a level.
The monitor is also a Class 1 energy consumption, and it is still very energy-efficient for commercial use.
Let's start with the monitor. The first thing you see when you open it is the manual.
A brief introduction to the installation and setting methods are presented in graphic form at a glance
To display a family portrait, base, power line VGA cable and monitor body, the monitor bracket is integrated on the monitor body and cannot be removed.
Base square, slightly curved surface
And the bracket is fixed by the slot
On the back of the monitor, there are cooling holes above and below, and on the left is the label and power plug. The two inputs are the DVI and vga interfaces respectively. There are four screw holes on the wall
The specific model is the LS2233WA on December 16, 2015.
The standard three-phase jack, such that the power supply is integrated inside the display, although the thickness of the display body is increased, but the external transformer is omitted.
Two input interfaces, No. 1 is standard VGA, No. 2 is 24+1 DVI interface
A protective film is attached to the front of the monitor
The LCD panel is a diffuse reflection material, not as beautiful as a mirror, but less reflective than a mirror.
Next, install the power supply and VGA cable, but find that there is no fixed line
I flipped again in the box and found that there was a line card
Red line card
In the base frame, Lenovo's designers seem to like this black and red color scheme, and red is often the design of line cards.
The power line and VGA data cable can be fixed on the bracket and will not leak from both sides.
Next is the keyboard mouse
The keyboard is USB interface, non-standard keyboard, lack of PRINT SC SYSRQ key, it is inconvenient for screen capture
There are leaking holes on the back and two adjustable brackets on the upper part. The red support feet are very easy to escape.
Input 5V100ma, the specific model is LXH-JME2209U
Can be raised about 1cm after the red straight leg is lifted
There is a drainage hole at the bottom and there is also a black rubber pad on the corners.
The tilt angle after pulling up the bracket
Keystroke process is not long, feel good
The keyboard stand has a certain tilt angle. It can be seen from the side that the bottom of each key is slightly curved, and the groove at the bottom of the key is independent, and there is a slight gap between the two grooves. Should be stuck in foreign objects stuck button, this design should like it!
Random gift mouse pad, good texture
Another tray is mouse, power cord, manual, and safety guide
Spread out a sun, but also brought a computer information system sales license! It is estimated that it is set up for office computers...
USB mouse, integrated design of the top panel, or black and red color, middle roller rubber feel good.
The back of the mouse, Lenovo production, remember that long ago Lenovo was using the Logitech OEM mouse.
Next is the host
Remove the front panel protective film is still very beautiful, black piano paint surface, red drive ejector, two USB ports (but 2.0), earphone microphone connector. The optical drive's panel is flip-down, and the overall panel is the same, not because of the difference in the model of the optical drive. The power light is integrated in the switch and there is a small hard disk light on the side. The upper part of the panel is hollowed out. It can be used as a handle and it is quite convenient. The lower half of the panel is a honeycomb opening for easy air intake.
The bottom side is the model and the date of manufacture
Followed by the win7 Home Edition serial number.
The other side is designed with an air inlet in the CPU area to facilitate heat dissipation.
After the warranty
Behind the standard mouse and keyboard interface, a VGA interface, there is a serial port (this is still useful in commercial machines), two USB3.0, two USB2.0, an RJ45 interface, the following is the headset, microphone and audio input interface. 4 expansion slots, graphics card with a baffle, the following three are reserved openings, if necessary, can be directly opened.
The side with a wire lock interface and the lock on the ordinary lock, this design is also a must-have commercial machine
Regardless of the seal, first remove it.
The thickness of the side plate is still good, the stamped and formed ribs make the back of the chassis very stiff
The mainboard is relatively simple, with its own fan without a label, but look at the radiator should be copper-core aluminum wings, this is standard in Lenovo.
Kangshu AcBel power supply, peak power 280W, but for integrated graphics should be sufficient.
Memory of Ramaxel Memory Technology (Shenzhen) Co., Ltd., Samsung's particle, single-sided 4G
Lenovo's own motherboard IH81M master chip, supports 1150-pin four-generation CPU, four-phase power supply, two memory slots, a standard PCI, two mini PCI, and a PCI-E graphics card slot, can be simple upgrade. Work well-proven, but there are empty capacitors on the motherboard, really saving all costs.
Remove the front panel of the chassis, you can see the switch circuit board, and the optical drive, the overall steel plate is very thick, Lenovo's chassis of these brand machine materials are very thick, the design is relatively reasonable.
A close-up of the top switch, and the bottom should be a temperature-controlled probe.
On the back of the front panel, it is estimated that it is for the sake of strength. The honeycomb holes are not hollowed out. The ribs are added to the plane. This structure should be strong.
CD-ROM disk holders, stamped steel plate strength is higher, the corners are also more sleek, will not see the situation of the machine see red......
Underneath the power supply has a large cooling fan, which can just take the CPU's heat directly away. The design of the air circuit is still quite good.
There are two hard disk drives, which are vertical and do not affect long graphics cards.
Seagate 500G hard disk, native production, office use is enough
HL? Hitachi LG hybrid drive? To tell the truth, this is not really useful now, not as good as a U disk.
After the internal display is complete, reload it and prepare to boot
experience feelings
The first boot is not fast, wait for the system configuration
WIN7 Home Edition, below the Lenovo logo
After setting up, finally entered the system
Use Master Lu to test it first
Can directly identify the Lenovo model, the main configuration of the host
The cumulative power of the hard disk is 4 hours. It is estimated that it is used when the system is manufactured. The memory is shipped from the factory in June of the year 16. The BIOS date is earlier. I don't know if it is not updated or... The monitor is also shipped in December 2015.
The fourth-generation I5 4590 processor, the daily office is sufficient, it is estimated there is a lot of redundancy
The identification of the motherboard is rather strange, there is no marked chipset, just Lenovo NOK model! From this name... N (not) OK (good)?
Memory, the original official name of the brand is called memory?
Seagate's hard drive, the data is still relatively full
Cpu integrated graphics, 4600 to deal with the office is absolutely no problem
The monitor, Lenovo's brand, 21.7 inches, has finally been upgraded. Before the office was equipped with 19-inch. The resolution has finally reached 1080P
Optical drive, network card sound card......
Power estimation 136W, 200W power is enough
Look at the boot temperature, the new machine cooling is still quite good, it is estimated that there is no large program to run
Turn on the temperature pressure test, CPU occupied directly 99%, the fan speed directly picks up, but the temperature detection is normal, passed
Test performance, bottlenecks in the hard disk, it seems that mechanical hard drives still can not keep up with the rhythm!
total ranking……
Processor rankings...
Not to mention the graphics card... but it is generally in line with the positioning of office computers.
Cpuid
CPU-Z test results
GUP-Z
The mechanical hard disk also comes out.
Press the small blue button on the keyboard to automatically enter the Lenovo rescue system
BIOS comes with Chinese language
After switching to Chinese, there is still a small part of the settings displayed in English, the show is here
to sum up Because it is an office computer, there is no game for testing. As a whole, Lenovo's commercial machines are still quite good. Although motherboards, memory and the like are not brand-name, the stability is still quite reliable. The computer is generally 24 * 7 boot, continuous power or no failure is not off, the general computer to use about 2 years to clear the ash is no big problem! Because of the use of specific software, CPU resources are not too large, and the summer is also an air-conditioned room, so the machine can generally work stably for 4-5 years, until eliminated, to say that the harsh environment is that winter and dust Because of the air conditioning in winter, the temperature is relatively high. Lenovo can also stand the test, so if the demand is stable and long-term work, choose Lenovo's commercial machine is still good!
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