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Disassembly of ARISTA DCS-7050SX3-48YC8-R switch
Time: 2024-12-04
Moduletek Labs recently purchased an ARISTA DCS-7050SX3-48YC8-R switch, which will be briefly disassembled and analyzed to show you its internal structure.
Table 1 Switch Official Information
| Model | Number Description |
| DCS-7050SX3-48YC8-R | Arista 7050X3, 48x25GbE SFP & 8x100GbE QSFP100 switch, rear-to-front air, 2xAC |
The front panel of the device mainly has 48 1/10/25G SFP28 interfaces and 8 40/50/100G QSFP28 interfaces; the back panel has 1 RS-232 serial port, 1 RJ45 management port, 1 USB port, power supply and fan access slots (a power supply module is accessed for this test).
Figure 1 DCS-7050SX3-48YC8-R switch front and rear panels
Open the top cover of the switch, the first thing that comes into view is a huge cooling block, the internal structure can be divided into two parts, one part is the power supply, fan slots, surrounded by metal baffles; the other part is the PCB board, which is connected by two PCB boards, we carry out a simple dismantling of the main chip to understand it.
Figure 2 ARISTA DCS-7050SX3-48YC8-R internal construction
Remove the largest heat sink, the main switching chip is underneath it, use a dust free cloth dipped in alcohol to gently wipe the silicone grease on the chip, you can see that the main switching chip model number is BCM56770A0KFSBG, which belongs to the BROADCOM Trident3-X5/BCM56770 series, 2.0 Tb/s programmable Ethernet switching chip that supports 20x 100GbE/40x 40GbE/64x 25GbE ports for building highly scalable, low-power, feature-rich top-of-rack, aggregation and backbone switches.
Figure 3 DCS-7050SX3-48YC8-R Primary Switch Chip
Remove the other smaller heatsink block, under which the microprocessor is located, and use a dust-free cloth moistened with alcohol to gently wipe the silicone grease from the chip, and you can see that the microprocessor model number is RE421NAAY43KA, and it belongs to the AMD RX-421ND series of products.
Next to the heatsink block is the memory card accessed vertically, using VL31A1H63F-N7SC 8GB memory of Virtium.
Figure 4 DCS-7050SX3-48YC8-R microprocessor
Replenish the silicone grease to the two chips and reinstall them; power up the device after the installation is complete, and the system boots to the following interface, indicating that there is no problem with system startup.
The optical module products of Moduletek can be well compatible with ARISTA's related equipment, welcome to purchase!
If you have any questions about the above content, you can contact us by Email : web@moduletek.com.
