Antminer Power supply Common Troubleshooting Fan don’t work, no 12V output Reason:The power supply on the AC side  is abnormal Ways to deal with 1.Check the AC side if the connector connect tightly 2.Check whether the grid has power and the voltage is normal Fan work normally, no 12V Output Reason: 1.low grid voltage ,2.power protection Ways to deal with 1.Use a multimeter to confirm that the current voltage is above 250V, so as to ensure that the power supply can be turned on 100% 2.Check if the power supply has output or overload. This situation will cause the power supply to enter the lock-up protection state. It can be restored after removing the fault and restarting the power supply. After the power supply stops outputting for a few seconds, it resumes normal working, and continues to work for a few minutes and then stops outputting, trouble happens repeatedly Reason: The power supply has entered the over-temperature protection Ways to deal with 1.Check if the fan work normally2.Check whether the cooling air channel of the power supply is blocked3.Check whether the power supply has been used for a long time and there is too much dust accumulated inside4.Check the voltage used by the power supply or the surrounding temperature exceeds the value of the power supply power setting curve Miner output normally, but fan didn’t work Reson: Fan broken Ways to deal with 1.Check if the fan is blocked by other things2.fan is broken A normally working power supply suddenly

During the process of shipping for those heavy ASIC Miners, there will be some damage to miners, like problems with Fans/PSU/Hash boards/Control boards because international logistics would not take good care of the heavy items. Meanwhile, the miner will stop working after working for a long time. For Hash boards and Control boards, we could support free repairs if you don’t mind affording the Round-trip shipping. For Used miners, we strongly suggest that it’d purchase extra spare parts like Fans/PSU as preparation for exchanges because they usually get damaged during the long trip shipping easily. We offer full series of ASIC Miner’s parts, like Antminers Parts, Whatsminer Parts, Avalon Parts, Innosilicon Parts, and Goldshell KD Box parts. Among those parts, we have basic chips, hash board, fans, power supply, power cord cable, capacitor, control board. Regarding to the repair tools, We have Antminer test fixture, Tin tool sets, hash board code editor, universal chip fixture , Portable desoldering gun, Headband Magnifier,oscilloscope, Electronic magnifier, ANLIXIN-862D desoldering station,205H high-frequency soldering station, DDR5 DDR5X DDR6 combination Tin Tools, etc. We also offer programs like L3+ Tester Production File, universal Antminer test fixture TF card programs, and Antminer hash board PIC file. If you have mining farm, we can offer you Combined shelf, Negative pressure fan, Power socket module, Mobile miner box, ASIC miner external water cooling radiator fan, Miner water cooling water pump. For more information, kindly please call us at Whatsapp 86 13728685427 or Email us at 1@sz-sinowell.com You can reach us

Doing business is something that requires mental and physical strength.The continuation of the company relies on the accumulation of the past,the accumulation of time consumed is not infinite. Some companies are flow thinking, some are product thinking. We temporarily belong to the latter, the former latter is not superior or inferior, past thinking confined to the latter, did not think about the former, the two do not conflict, future growth comes from the new organization of the former, as well as the continued maintenance of the latter. The mission and values of the company are extremely important when the company enters the mid-term. The mission needs to be deeply understood and believed in by the founder, it is the compass of the company, the key guiding factor of the second, third…n curve, and is a great challenge for the founder. Both of these are very difficult and very important, and are long-term projects. Investment some industries to achieve the first only 5 billion market value, some industries do a sloppy 50 billion market value, the track is limited to pursue greater breakthroughs inescapable problems, limited by one of the reasons, too early to start, not deep enough knowledge, web era entrepreneurs natural disadvantage in the more efficient short video live era, limited by the second reason, organizational capacity is limited, can not be fast and agile to new opportunities The second reason for this limitation is the limited organisational ability to organise new opportunities quickly and agilely. The future is

The 8K HDMI Switch 3 IN 1 Out connects up to three 8K devices to select 8K AV receivers. It’s compact, includes a remote, and supports automatic power-on. Connect Up to Three 8K Devices The 3 in/1 out HDMI Switcher allows you to connect up to three 8K devices to select 8K AV receivers. Compact Size and Elegant Look 8K HDMI products supporting 8K 60 Hz, 4K 120 Hz, HDMI 2.1, HDCP 2.3 & 48-GBPS 1×2 8K 60 HZ & 4K 120 Hz HDMI Splitter 2×1, 3×1 & 4×1 8K 60 HZ & 4K 120 Hz HDMI Switchers 4×2 8K 60 HZ & 4K 120 Hz Matrix Switchers 8K 60 Hz & HDMI 2.1 extends the bandwidth to 48 Gbps and connects 8K – TVs to 8K Video Cards, 8K Boxes, 8K Play Stations, 8K PCs, and other 8K HDMI devices. HDR10+ and Dolby Vision support ensures every moment of a video is displayed at its ideal values for depth, detail, brightness, contrast, and wider color gamut’s on a scene-by-scene or even a frame-by-frame basis. HDTV Supply uses only the best-made 8K chip from ADI, assuring you the best 4K 120 and 8K 60 picture quality. Many can send 1-4K 120 Hz signal to 2-4K 120 Hz outputs. Another feature is FRL or Fixed Rate Linkup. This gives you better picture quality using high-quality screens. It conforms to FRL 6 (48Gbps). We had tested our 8K products with these 8K devices: 8K XBOX-X 8K Sony PS5 8K TV from CHANGHONG 8K TV from Samsung 8K (4320p) NVIDIA GeForce RTX 30×0

For the future-proof reliability, performance, and speed for Audio&Video, Home Entertainment, and next level gaming experience, We released the plug-and-play Ultra 8K HDR Switch 1×2,1×4 and 8K HDR Splitter 1×2, 8K HDR Matrix 4×2 which offer unparalleled bandwidth and features. The new 8K HDMI Splitter and Switch offer Uncompressed transmission of HDMI content up to 48Gbps and a resolution up to 8K 60Hz,4K 120Hz ideal for extracting the maximum performance from 8K displays, gaming consoles and Pro Audio Video matrix switchers. Our 8K switchers not only meet 8K demands but also produce mathematically lossless content. These switchers also support all High Dynamic Range formats including HDR10+, Dolby Vision and HLG. To be able to send 8K content from source to display, everything inline is required to be HDMI 2.1 compatible, leading to expensive upgrades including your audio distribution system. With our switchers, no need to upgrade your AVR! Simply utilize the audio de-embed on our switchers to get high quality 5.1 while passing HDMI 2.1 content to your display. Full Released 8K Products: 4K/8K Bi-Direction Swtich, 8K HDMI Switch 2×1,3×1,4×1,8K HDMI Splitter 1×2,8K HDR True Matrix 4×2, Catch the New Business Chance Now! Whatsapp 86 13728685427, E-mail: 1@sz-sinowell.com

With the 8K chipset available in the market, we have developed more 8K products for customers. We use the world’s best ADI 8K chipset . 8K HDMI Switcher displays a higher resolution than 4K. 1080p screens have a resolution of 1,920 by 1,080 pixels. 4K screens double those numbers to 3,840 by 2,160 and quadruple the number of pixels. 8K doubles the numbers again, to a resolution of 7,680 by 4,320. That’s four times the number of pixels as 4K, which means it’s 16 times that of a 1080p TV. The picture is just glorious. 1×2 8K 60 HZ & 4K 120 Hz HDMI Splitter 8K 60 Hz & HDMI 2.1 extends the bandwidth to 48 Gbps and connects 8K – TVs to 8K Video Cards, 8K Boxes, 8K Play Stations, 8K PCs, and 8K HDMI devices. HDR10+ and Dolby Vision support ensures every moment of a video is displayed at its ideal values for depth, detail, brightness, contrast, and wider color gamut’s on a scene-by-scene or even a frame-by-frame basis. Sinowell uses only the best made 8K chip from ADI, assuring you the best 4K 120 and 8K 60 picture quality. Many can send 1-4K 120 Hz signal to 2-4K 120 Hz outputs. Another feature is FRL or Fixed Rate Linkup. This gives you better picture quality using high-quality screens. It conforms to FRL 6 (48Gbps). Sinowell has tested our 8K products with these 8K devices: 8K XBOX-X 8K Sony PS5 8K TV from CHANGHONG 8K TV from Samsung 8K

Firstly We will choose the best used miners from warehouse based on customers’ requirement. Secondly we test used miners and make sure the hash rate is comply with the requirement, check the power supply and fans to see if all parts work well. Thirdly We will deep clean every used miners , change new fan cover . Below deep clean video for your reference. Change the New fan cover Below are some pictures of the finished package. Currently the hot-selling models like: Antminer S19 series,D7,L7,Innosilicon A10, A11,Whatsminer M21s, M30s,Avalon, Brand New YAMI, Jasminer, Brand New GoldShell KD5, KD6 all with very reasonable prices. You can reach us 24/7 via WhatsApp +86 13728685427, Email: 1@sz-sinowell.com

With the rise of 8K displays, 8K content, and HDMI 2.1 sources, it’s time to talk about 8K audio video distribution. Consumers are buying 8K TVs and gaming consoles, but their other devices are 4K, or 1080p. Going directly from the 8K gaming console to the 8K TV works great,but what if you want surround sound too? If you want bitstream surround sound audio from HDMI 2.1 sources like a PS5 or XBOX Series X, you could try to go directly from the source into an AVR.But most AVRs can’t handle 8K or HDMI 2.1, and the signal won’t get through to the TV. How do we get 8K on the display and bitstream surround sound at the same time? With our 8k Matrix switcher 4×2, you can watch 8K content and listen to full surround sound audio without sacrificing video quality. It is an 8K matrix switcher with 4 HDMI inputs and 2 HDMI outputs. It supports HDMI 2.1 features like high frame rate, variable refresh rate, uncompressed audio, and 8K video resolutions up to 40Gbps (FRL5), making it ideal for 8K audio video distribution. But how do we get the surround sound to work? AVRs will still cut the video quality down if they can’t handle the massive 8K 30hz or 4K 120hz content. We can get around the AVR with the 8K Matrix Switcher 4×2. One of the HDMI outputs has a built-in video downscaler that can take 8K and scale it down to 1080p without messing

40Gbps 8K HDMI Matrix Switcher with everything an integrator would want. 8K Resolution up to 40Gbps Dolly Vision, HDR10+ and HLG Support. HDCP2.3 (all earlier version supported) Can downscale to 1080p or 4K Perfect AVR Bypass deliver 40Gbps to Display and un compressed audio to AVR Advanced EDID Management With Remote controller Do you want to offer your current customers a 8K Home theater? In order for your customer to connect multiple sources that are both 8k & 4K they must have a matrix Switcher. Delivery the most optimized picture to your display Works with PS5&Xbox Series X with no added latency Compatible with all 8K AV and TV’s Support 8K, 4K & 1080p sources. Legacy AV Work Around 8K Television and 8K gaming consoles are a standard part of every luxury home theater. Integrators can run into major problems using an AV to route that taxing 8k signal. With Sinowell 8K 4×2 matrix switcher you can cleancly route uncompressed video from 8K & 4K sources directly to your 8K display or projector. 8K to the display,1080p to the AV with full uncompressed audio Use the AV that is already installed Works with working around other older HDMI products. 8K AV to TV Upgrade New 8k displays and AV’s have a signal 8K HDMI input port.If you have both an Xbox Series X and a PS5 the 4X2 allows integrators to connect all the video sources to the matrix and have it connected to the 8K port on your TV

Shipping from the Shenzhen China factory directly worldwide, cheap and fast ! We have long-term forwarder who offer most competitive price for door to door service within one week delivery from China to your country. We have different methods to solve the additional import duties /customs fees to lower down your cost. Meanwhile, we will keeping following the tracking number and keep you updated .If you have any questions about customs clearance , we will always here to help you to solve every problems.  We take quality very seriously, arithmetic is the life of the machine, customers buy every machine, as long as the machine from the Shenzhen test center out, no matter how many quantity, we can always provide the machine’s arithmetic chart and the corresponding machine code. Our principle is: do not let go of any machine with problems, it’s immoral to send out the bad machine. if the machine has not been tested, it is estimated that at least 10% of the machine is not up to the standard or bad arithmetic. So strict testing is very important for the machines. Arithmetic is the life of the machine, it will be scrap metal without arithmetic. Testing video is our proof that showing product tested 100% before shipping and 100% working well. Only do justice and transparency, your customers will be more and more. Packaging is very import during transportation We will provide professional customized thickened foam new packaging to avoid brutal transportation. In fact, 30% of machine