Lenovo ThinkCentre M900 Tiny case front and back pannel

Lenovo ThinkCentre M900 Tiny

Specification and Review

The Lenovo ThinkCentre M900 Tiny was first released in 2015. Although more than five years old, this model is still a viable option for home and office use. Because of its size, this model cannot be properly upgraded for gaming.

The Lenovo ThinkCentre M900 Tiny is a Micro form factor computer. Micros (also called Mini or Tiny) are one of the smallest size PCs available on the market. Lenovo ThinkCentre M900 Tiny is very compact and comes with a laptop like power supply (i.e. external). This devices is easy to upgrade with additional RAM and storage but have little to no expandability. Usually models with this chassis have an optional Wi-Fi and Bluetooth module and an M.2 slot for an SSD.

Specification

Model
Form factorMicro
CPU optionsIntel Gen6 i3/i5/i7; Celeron; Pentium;
ChipsetQ170
Dedicated GPU *N.A.
RAMSODIMM DDR4-2133
RAM slots2
RAM speed2133 MT/s
RAM max32 GB
USB ports(6x)USB-A 3.0;
Video ports(2x) DisplayPort;
Other portsRJ45; Headset; Mic;
Optional portsVGA/HDMI/DP/Serial; WiFi antenna;
SATA ports1
PCI slotsN.A.
M.2 slotsM.2 2280/2242 M-key (PCIe x4); M.2 2230 (WiFi/BT);
Drive bays2.5in;
PSU65 W
Weight1.3 kg (2.9 lbs)
Released2015
Manuallink
Price**Check Price

* Dedicated GPU warning: Check if your particular power supply model has enough power. Additionally some PSUs don't come with an auxiliary PCIe power connector and you may need to buy a SATA to PCIe power adapter.
** As an Amazon associate we earn from qualifying purchases.

Processor

The Lenovo ThinkCentre M900 Tiny supports Gen6 Intel Core technology. Intel introduced the 6th generation of its Core CPUs in August 2015. Named Skylake, it uses the same 14nm manufacturing process like the old 5th gen. The improvements are better CPU and GPU performance and reduced power consumption. Other enhancements include Thunderbolt 3.0 and SATA Express. CPUs often used with this model are Core i3 6100, Core i5 6500, and Core i7 6700.

Memory

A RAM slot (also called memory socket) is where RAM memory sticks are inserted into the computer. Most desktops will have two to four slots. This model has 2 RAM slots. It should be more than enough for most users. For those who need extra flexibility and RAM size you, go for 4 RAM slots and more.

Faster RAM speeds permit your processor to access the data stored in the RAM memory faster. This is important for the overall speed of your system. The motherboard of the Lenovo ThinkCentre M900 Tiny supports RAM speeds of up to 2133 MT/s. In case you want faster RAM speeds, you will need to upgrade your system with a newer generation one.

Size of the RAM is another important parameter. It is important not to run out of RAM memory during everyday work. If this happens often, you may see significant drop in performance. For everyday work and light gaming we recommend 8GB of RAM. For everything else, go for 16GB and more. The Lenovo ThinkCentre M900 Tiny supports a maximum of 32 GB of RAM.

Ports

Ports are something important that people should pay more attention to. For example, if you don't have enough USB ports, using external devices becomes problematic. Before buying, considering your use case and plann for extension ports in advance.

The Lenovo ThinkCentre M900 Tiny comes with 6 USB ports in total. Having more USB ports is always better, but also pay attention to the version of those USB ports. Higher version of USBs support faster transfer speeds. Unfortunately, this model doesn't come with a USB 3.1 port. If you need a faster connection for your peripherals, like external Solid State Drive, you will need to choose another model.

DisplayPort (DP) is crucial for any desktop machine as it allows you to connect external monitors. It is good to see that the Lenovo ThinkCentre M900 Tiny is featuring a DisplayPort. The version of this DisplayPort is also important. Try to always aim for the higher versions of DP as it allows for better resolutions and refresh rates.

HDMI port is another digital video port which allows you to connect external monitors. It has very similar capabilities to the DisplayPort with few exceptions. However, the Lenovo ThinkCentre M900 Tiny doesn't have one. It is not a problem if there is a DisplayPort is available.

SATA slots are located on the system board and it is where HDD, SSD and Optical Disk Drives are connected. The Lenovo ThinkCentre M900 Tiny comes with 65 SATA slot(s). Keep in mind that having too few SATA slots might restrict your options for connecting additional memory drives. Think about your use case and decide if the SATA slots provided by this model will be sufficient.

The M.2 SSD interface allows you to transfer data with higher speeds compared to the old SATA interface. Sometimes the M.2 interface will be 5 times faster and more. Fortunately the Lenovo ThinkCentre M900 Tiny has it and you will be able to enjoy fast transfer speeds with your SSD.

Side note: It is good if the available M.2 slots support the PCIe/NVMe interface. Sometimes the M.2 slot will only support the inferior SATA III interface. For comparison, the SATA III has max speeds of 6Gb/s, while the PCIe 3.0 x4 can go as high as 32Gb/s!

Power Supply

Having a PSU (Power Supply Unit) with high power rating is important, especially if you are going to use components, like dedicated GPU and additional HDD, which require extra power. The Lenovo ThinkCentre M900 Tiny comes with a 65 Watt PSU. Deciding if this will be enough depends on your specific requirements and use. Please also pay attention as some models might have more than one PSU option. Whenever possible, get the most powerful one as it might make future upgrades easier.

Motherboard

Lenovo_ThinkCentre_M900_Tiny_motherboard.jpg motherboard layout