Dell g5 not using gpu

Dell g5 not using gpu. G5 Entertainment is a leading developer and publisher of casual and free-to-play G5 Games’ Hidden City is a captivating hidden object adventure game that takes players on an immersive journey through a mysterious and enchanting world. Dell considers Are you looking for a new computer but don’t know where to start? Look no further! This article will help you choose the right Dell computer for your needs. If you do see both GPUs listed in the device manager, you likely have a driver issue. Mine had few BSODs and mostly DRIVER POWER STATE FAILURE but don't know the cause. Dell G5 5090 Specification and Upgrade Options. The motherboard cannot be started without a CPU. 2 my discrete gpu rx 5600m is not detecting, troubleshooting i did,-Reflashed the bios again with 1. Locate and use Dell apps from the Windows Start menu—Recommended. Download the BIOS, the Killer Wireless Bluetooth, AMD graphics drivers and AMD Navi 10 Firmware Update Utility. 21. There is also a 360W power supply that cam in the G5. This is how most dual GPU laptops work. Jul 7, 2019 · Dell G5 5590 RTX 2060 - GPU Start a Conversation. Reconnect the battery, plug in the system and boot -- see if the discrete GPU appears. Jul 19, 2018 · I've just bought a laptop(G5-5587) from eBay USA with Nvidia GTX 1050Ti graphics card. The Dell G5 5000 is a pre-built entry-level gaming desktop computer first released in 2020. Feb 3, 2024 · Graphics card, AMD, RX, 5700XT, EM AMD(R) Radeon(TM) RX 5700 XTw ith 8GB GDDR6: Hi I was looking to upgrade my dell G5 5000 to an i9-10900 series , which should I Based on May 2024 Stratetgic Thermal Lab report commissioned by Dell Technologies using Cinebench 2024 Multi-Core, 10-minute-stress test - April 2024 comparing Internal Test Data with XPS 13, Qualcomm Snapdragon X Elite - X1E80100, Qualcomm Adreno graphics, 64GB memory, 2TB SSD vs. Feb 28, 2022 · I've tested the GPU using the Dell website and it detected it as well as confirmed it's in working order, but none of my programs want to use it. First you should install dell power manager in microsoft store then install dell power manager service driver( google search"driver dell g5 5587" then find that driver in the box"driver and downloads). However, I'd say your best bet is to enable switchable dynamic graphics with some fancy stuff in the Registry Editor. Gaming and Graphics: Meet SmartShift. From scientific research to artificial intelligence, the dema Machine learning has revolutionized the way businesses operate, enabling them to make data-driven decisions and gain a competitive edge. I understand that the G5 will not charge over USB C, that's not a problem for me. When In the world of computer gaming and graphics-intensive applications, having a powerful and efficient graphics processing unit (GPU) is crucial.    Aug 15, 2024 · While this behavior typically occurs after the system has been in use for some time, using monitoring software, it's possible to show that when the temperature of the processor heats up, the system may have to lower the speed of, or the power to the CPU/GPU (Central Processing Unit/Graphics Processing Unit) to prevent the system from overheating. This is an add-on card that has its own powerful Graphics Processing Unit (GPU) and dedicated Video memory. Aug 30, 2016 · The issue seems twofold here - one being that Microsoft do not allow a system-wide declaration of "Use my good GPU", and secondly I need to have a display physically connected to my laptop for Nvidia to consider the GPU to be connected. i have tried bios reset, reinstalling the graphics driver all this didn't work until i opened the laptop and i saw on the motherboard, close to the discrete gpu on of the small power capacitors was fried. Apparently the older G5 5090 Dells have an option in bios to Enable Legacy Option ROMs but the newer G5 5000 does not. Just one month after my warranty expired GPU RX 5600m stopped working in my Dell G5 5505 SE. In order to get the PC to boot with a graphics card that does not contain a UEFI-enabled firmware the end-user must first disable the secure boot feature in the system's SBIOS before installing the graphics card. Jun 8, 2020 · The Dell G5 15 SE (5505) is the first laptop with SmartShift. Jul 3, 2020 · In terms of whether you can use the monitors with the NVIDIA RTX GPU, as long as you do NOT use something like the D6000, you will at least be able to use the NVIDIA GPU through NVIDIA Optimus. Jul 27, 2021 · I have been trying to play games like Destiny 2 and Final Fantasy 14 but my GPU keeps dropping from 99% to 40$ randomly and causes huge frame drops. With its sleek design, powerful performance, and affordable price range, a Del When it comes to purchasing a new laptop, finding a great deal can make all the difference. Install the CMOS battery followed by the Main battery, plug in AC and power on. Nov 11, 2019 · The Dell G5 Gaming Desktop (starts at $589. Jack Just updated what Dell have installed using Dell Update (firmware and drivers), then ran Windows Update. The total amount of Rewards that can be earned each Dell fiscal quarter shall not exceed $1,500. 2 Posts. Provide your service tag for the optimal May 29, 2020 · The 2020 version of the Dell G5 15 SE (starts at $879. Dell OEM RTX 3060Ti is clocked at 200W max as compared to 220 for the other Mar 6, 2021 · The following table lists the specifications of the discrete Graphics Processing Unit (GPU) supported by your G5 5000. Click the appropriate links below to download the latest drivers: All Dell drivers can be found on the Dell Drivers & Downloads section of our support site. 99 as tested) is a straightforward, compact system with a fast CPU and plenty of power for full 1080p gaming. That will allow the NVIDIA GPU to handle rendering, so you'll get high performance. One revolutionary solution that has emerged is th In today’s technologically advanced world, businesses are constantly seeking ways to optimize their operations and stay ahead of the competition. As the demand for high-performance computing continues to rise In today’s data-driven world, businesses are constantly seeking ways to accelerate data processing and enhance artificial intelligence (AI) capabilities. Whether you’re an avid gamer or a professional graphic designer, having a dedicated GPU (Graphics Pr In the fast-paced world of data centers, efficiency and performance are key. Our Dell G5 15 SE review unit came with a Ryzen 7 4800H CPU paired with an AMD Radeon RX Dec 8, 2020 · G5 power supply does not have standard pin-outs. Hello there !!! My GPU (nvidia GeForce 1060 with max-q design) is no more detected, nor by windows, nor in BIOS. When looking at hidden files the nvidia driver was grayed out, so I deleted it in hopes it would reinstall after reboot. A graphics card is a common upgrade to many Dell desktops. A Dual fan RTX 3060Ti or RTX 3070 should work just fine as long as they fit. Traditional CPUs have struggled to keep up with the increasing Are you looking for the latest deals and discounts on Dell products? Look no further than the Dell online store. 99; $1,169. With a range of models to choose from, it’s important to find one that suits . With its stunning visuals, G5 games have become increasingly popular among gamers of all ages. On the Support and Protection screen, enter your contact details. I have already tried DDU. As datasets continue to grow exponentially, traditional processing methods struggle to To contact Michael Dell, individuals can send a Tweet to his Twitter account, or they can contact him by email at michael@dell. Apparently GT 710's work so I might go that route. when does it use which ? 3 - Can I support multiple external monitors ? 4 - If so at what resolutions using which connectors/adapters ? Thanks. 4772. Note: 1 day ago · Keeping the drivers updated for your graphics card or chip and processor ensures that you always get the best performance from your gaming computer. With a wide selection of laptops, desktops, monitors, and more, you Dell Quickset is a firmware application that allows users to completely customize the appearance of their computer. The 500W PSU is the best Dell one for the G5. This is where GPU rack In recent years, data processing has become increasingly complex and demanding. The motherboard is using the H370 chipset and supports 9th gen Intel Core processor, and 64GB of DIMM DDR4-2666 memory. Tried different versions. ) I'm guessing this is because Fortnite's not recognizing the dedicated graphics card, instead opting to use the Vega iGPU onboard the Ryzen 5. My laptop started experiencing GPU-related problems a week later after the purchase due to some hardware defect. Additionally, a person can attempt to contact hi If you’re looking to get the most out of your Dell PC, these tips will help! By following these guidelines, you’ll be able to optimize your computer for maximum performance and eff In the world of high-performance computing, efficiency and speed are paramount. The graphics card works fine since the computer stays on when I ONLY plug the PSU cord into it, but once it's seated, it goes kaputt. com Remove AC power and open the bottom of the laptop, Pull the CMOS battery and then the main battery. After that, my windows automatically installed the new Windows 11 update and after that, I could not find my GPU. Apr 1, 2020 · The NVIDIA GPU exists as a "render-only" device that activates when needed (or when forced to run using the "Run on graphics processor" option in the right-click menu of an application shortcut), and it then passes completed video frames to the Intel GPU for output to the display. Note: Do not power off the system during the BIOS upgrading process. Feb 21, 2021 · Browse to the Dell Drivers & downloads page for your product Dell G5 5590; Dell G7 7590; Dell G7 7790; Ensure you have selected the correct Operating System; Under Category, select BIOS; Locate the latest System BIOS; Click Download and save the file to your PC; Open File Explorer and browse to the location where the downloaded file is saved If it's anything like my all-AMD MSI notebook, you just use DRI_PRIME=1 %command% and it "just works". 3. ALL video data, even if rendered by the nVidia GPU, is sent through the on-CPU GPU to the display screen. However, training complex machine learning In recent years, the field of big data analytics has witnessed a significant transformation. You may update the drivers it shows but I recommend not to. Apparently there are bunches of G5 desktops being purchased to get the high end GPU's and then resold with missing GPU's. After the initial setting up of the preinstalled win10, I looked for the graphics driver in the display adapter properties and it only mentions about the integrated Intel UHD Graphics 630 driver and not the dedicated or the discrete one(1050 Ti). Tried reinstalling Windows 11 then Windows 10. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. I tried : Uninstalling and reinstalling AMD Graphics Driver from Dell site, AMD site, Windows Update, Dell Update. 5 connectors in total. You are not supposed to be using 100% of what the PSU is rated at. The discrete gpu for gaming not detected DURING GAMING ON MY LAPTOP, I PLUGGED IN THE HDMI CABLE TO ENABLE ME PLAY ON TV SCREEN. S. If you do not, the nVidia GPU has failed -- you can either run the system on Intel only, or replace the system board if you must have the nVidia GPU (it's not a separate part, so it cannot be replaced other than by replacing the system board. com. Dude, listen. One type of server that is gaining popularity among profes In today’s data-driven world, data centers play a crucial role in storing and processing vast amounts of information. It comes as standard on Dell models and is available for updates In recent years, the field of big data analytics has witnessed a significant transformation. Max-Q design or not, The Dell G5 15 5590 has trouble keeping up with the rest of the competition in 3DMark 11 and 3DMark 13 Dell Rewards: 3% excludes taxes and shipping. Oct 10, 2020 · I'm using a Dell G5 SE Ryzen 5 4600H. Known for its captivating storylines, immersive gameplay, and stunning visuals, G5 games have beco In today’s fast-paced world, productivity is key. Mar 6, 2019 · I recently purchased a Dell G5 5587 laptop and experiencing overheating issues. When it comes to repairing or replacing parts, it is cru Dell’s slogan has changed a few times in company history, but as of 2014, its slogan is “Dell. 29GHz) Graphics: AMD Aug 8, 2024 · When the BIOS is set to use the discrete Nvidia graphics, monitor auto detection is disabled. Anyway, it was working fine, until around half an hour ago when my brother noticed a significant fps drop in the game he was playing (Fortnite. They need a GPU that supports UEFI Bios. Repeat both after first round of updates & reboots. 99 as tested) opts for all-AMD for its CPU and GPU, delivering great multimedia and decent gaming performance at a reasonable price. First minute of game play was ok and than FPS goes down to about 30fps. Install the BIOS. Rewards expire on the 15th day of the fourth month following the month in which were earned. after this i tried to rerun the game and it started stuttering. One technology that has gained significan Are you ready to embark on a thrilling adventure in G5 Games’ Hidden City? This hidden object game will transport you to a world full of mystery and intrigue, where you’ll need to In today’s digital age, gaming and graphics have become increasingly demanding. See full list on dell. Apr 28, 2022 · I have been using Dell G5 SE 5505 since February of 2021. Nov 4, 2021 · That also can update NVidia drivers. If it does not, it has failed; you will need to replace the system board. If not connected to the internet, create an offline account. Oct 29, 2019 · However, the largest increase in performance comes from the GPU. With its sleek design, powerful performance, and affordable price range, a Del If you own a Dell computer, you understand the importance of regular maintenance and servicing to keep it running smoothly. With tips on what hardw In today’s digital age, computer electronics have become an integral part of our lives. The majority of retail graphics cards manufactured in 2012 do not contain UEFI-enabled firmware. 0. Aug 12, 2020 · The monitor/USB PD display adapter works the first time, but after unplugging the cable, the port will not recognize anything. MacBook Air 13, M3 8-core CPU, 10-core GPU, 16GB memory, 512GB SSD. One of the primary benefits of using As technology continues to advance at an unprecedented rate, gaming enthusiasts are constantly on the lookout for the next big thing that will elevate their gaming experience to ne In the world of data-intensive applications, having a powerful server is essential for efficient processing and analysis. Table 1. Dells do not like non dell cards being in them I guess Turning off Secureboot hasn't worked for me either. Whether you’re a student, a professional, or someone who works from home, having the right tools to maximize your efficiency is es In today’s fast-paced world, staying connected is more important than ever. Only the Intel GPU has a physical connection to the display panel. Let it sit for 30mins (No less!). One such solution is an 8 GPU server. 17. So that could explain why Dell is offering the XPS 8940 with an OEM RTX 3070 CPU. ” An American company based in Round Rock, Texas, Dell is a leader in comp The main mission values for Dell are integrity and responsibility coupled in a business environment, according to Dell’s Purpose and Values section on their website. The last dell BIOS update was "1. It is connected to a Philips 273V5 through a Plugable UD-3900. In the world of mobile gaming, G5 Entertainment has made quite a name for itself. 14. May 24, 2021 · The CPU graphics card is a core component and is not allowed to be disabled. If you’re in the market for a high-quality laptop at an affordable price, look no furthe Dell computers have gained immense popularity due to their reliable performance and advanced features. Visit Community. They are made to be most efficient at 50-60% of their load capacity. sheriffwoodsman. NVIDIA Optimus technology (not available on 3D panel) NVIDIA® Optimus™ technology automatically optimizes your battery life while maintaining the graphics performance you expect — completely, seamlessly and transparently — whether you’re watching a movie, surfing the Web or playing a game. Find answers to your questions from other Dell users. But, Dell offered the XPS 8930 with a stock 460 W PSU and an OEM RTX 2060 GPU. As technology continues to advance, the demand for more powerful servers increases. i have attached the picture for reference. Feb 12, 2024 · What is a Graphics Card? (Figure. Sep 12, 2024 · Browse to the Dell G5 5505 Drivers site. Installing was a bit of a pain, had to adjust 4 times cause gpu was like 3mm off to the right, I don't know what was blocking it but got it in smoothly then. Here are some If you’re in the market for a new laptop, but don’t want to break the bank, then Dell Outlet is the place to go. Bought it last September and immediately experience the crashing issue when gaming. I can get the port to work again by powering down with the AC adapter unplugged and restarting. GPU not detected on dell G5 5587. So far so good! I believe that Dell likes to implement proprietary stuff in their desktops/laptops and Dell drivers work better as opposed to drivers straight from AMD/Intel/Microsoft/whatever. The CPU always stays around 20-50%, so it's not a CPU bottleneck. The PC powers on well when the graphics card isn't in, but once I reseat it to the motherboard, everything shuts down. Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. It has a six pin and dual 4 pin connections that are not any particular standard. From personal computers to smartphones and gaming consoles, these devices rely on various co Serial numbers on Dell computers are often on a tag that reads “Service Tag Number” at the rear near the docking station connector. It is not detected in Device manager, AMD Adrenalin anywhere. Whether you’re working from home, traveling for business, or simply need to connect multiple devices, ha Are you a gaming enthusiast looking for your next gaming adventure? Look no further than G5 games. Install the AMD graphics driver. In the case of multiple graphics cards, the integrated graphics card is generally automatically disabled, and the independent graphics card is activated by default. Jul 25, 2024 · GPU died on stock factory thermal limits. Related: Best PC Power Supply Calculators Jun 5, 2020 · The nVidia GPU is not a true discrete graphics chip -- it is a co-processor. 1 graphics card) Graphics Card: It is also known as a video card, a display adapter, a video adapter, a graphics adapter, or a display card. Nov 18, 2020 · I have a Dell G5 5500 with NVIDIA GeForce RTX 2070, based on Microsoft Windows 10 Pro 64-Bit Version 20H2 Build 19042. The Dell G5 SE’s render time was good, finishing the export in just Aug 21, 2024 · Issue with Switchable Graphics on a Notebook after disabling base graphics or re-imaging system; How to Set the AMD or Nvidia Video Card as the Default on Dell Laptops That Have Switchable Integrated and Discrete Video Options; Dell Systems Supporting HBR3 Specifications Nov 19, 2021 · Here is the Dell G5 15 SE 5505 configuration sent to TechRadar for review: CPU: AMD Ryzen 7 4800H (8-cores/16-threads, 12MB cache, 2. One solution that has gain In today’s world, where visuals play a significant role in various industries, having powerful graphics processing capabilities is essential. This is where GPU s G5 Games is a leading name in the mobile gaming industry, known for its wide range of captivating titles that cater to various genres and preferences. With the increasing demand for complex computations and data processing, businesses and organization Are you in need of a new computer for your home office? Look no further than a Dell desktop for sale. Dell OEM cards tend to have fewer/different video outputs which can reduce power consumption. Install NVidia new firmware update from Dell website. But after about 6 month - there was problem with performance down - lagging. Does this mean that ONLY the listed GPUs can be used in the Dell G5 5000? What I am trying to do is to replace the pre-installed GPU with another one, say Quadro FX 3800 since I don't need to play games on this desktop. Dell G5 5000 Specification and Upgrade Options. Purely You. With a wide selection of refurbished and discounted laptops, Dell O Are you in need of a new computer for your home office? Look no further than a Dell desktop for sale. 16. I have run an EVGA RTX 3060Ti XC, and an RTX 3070 FE in G5/XPS 8940 with the Dell 500W PSU. Below are attached screenshots of both a benchmark and the settings as mentioned in thread. 0" and the NVIDIA update was "NVIDIA - Display - 3/18/2019 12:00:00 AM - 25. Install the Killer Wireless AX1650 UWD Bluetooth driver. Locate Dell apps Resources Description My Dell Centralized location for key Dell applications, help articles, and other important Apr 5, 2019 · @GreatInquisitor As long as you use an NVIDIA eGPU and the built-in display is wired to the Intel GPU, which you can verify in NVIDIA Control Panel > PhysX Configuration, then you can use an eGPU to accelerate content displayed on the built-in display, since in that scenario your eGPU is operating through NVIDIA Optimus just like the built-in NVIDIA GPU would for accelerating content on the May 21, 2021 · The Lenovo Legion Tower 5i ($1,459 as tested) is the priciest of the group and supplies a Core i7 CPU and GeForce RTX 2070 Super graphics. If you need me to clarify what I mean by that, just ask and I'll explain myself. 90GHz base frequency, boostable up to 4. AFTER SOME TIME, I HEARD A LITTLE POP NOISE AND THE LAPTOP DISCONNECTED FROM THE TV AND THE GAME EXITTED. Nov 9, 2020 · Dell OEM GPUs are typically designed to use less power than 'retail' versions of the same card. There is also a tool on the Dell site that allow With so many people relying on their computers for work, school, and entertainment, it’s no wonder that viruses, malware, and other security threats are on the rise. The Dell G5 5090 is a pre-built entry-level gaming desktop computer first released in 2019. As datasets continue to grow exponentially, traditional processing methods struggle to In recent years, the demand for processing power in the field of data analytics and machine learning has skyrocketed. As the demand for high-performance computing continues to rise In today’s data-driven world, data centers play a crucial role in storing and processing vast amounts of information. One such innovation that has revol In today’s data-driven world, businesses are constantly seeking powerful computing solutions to handle their complex tasks and processes. The GPU should be detected in the Device manager but what status does it say? Definitely sort the graphics/chipset drivers first. Yeah got and installed a 3060 12GB GPU, double fan. Note that for me to get my external monitor to work in X, I had to run: 2 days ago · As a general rule, the GPU’s base power use is at roughly 40% of your PSU’s power capability, allowing it to use 50% of the available power when performing heavy-duty operations. July 7th, 2019 20:00. With their captivating storylines, stunning graphics, and immersive gameplay, it’s no wonder why so many people In today’s digital age, businesses and organizations are constantly seeking ways to enhance their performance and gain a competitive edge. After install all, you go to thermal management in dell power manager then choose ultra performace. I've followed the common fix in forums when you set  Processor Perfor Jul 25, 2021 · Boot the system in safe mode (instructions below). However, like any electronic device, Dell computers can experience certain is If you’re in the market for a new laptop, the Dell Inspiron 15 series is definitely worth considering. It's completely dead. (The Dell fiscal calendar begins in February. Please run a CPU & GPU stress test using Dell Support Assist & check if there is Jul 24, 2019 · I played all games on this new notebook with maximum graphics details on FullHD 1080p (Dell G5 with Nvidia 1060 6GB). It's really easy to limit the APU to 84C using RyzenAdj & the GPU to 84C using SPPT modding the registry. But some can also start the graphics card at the same time. Sep 29, 2021 · Unplug the system, disconnect the battery and hold the power button for 30 sec. Dell G5 5590 RTX 2060 - GPU stuck at 300Mhz Apr 8, 2020 · 1 - It is supposed to have "discrete" NVIDIA GeForce GTX 1050 graphics, but does it also have "integrated" Intel UHD Graphics 63 graphics ? 2 - If it has both, how does that work, ie. With a diverse portfolio that In today’s data-driven world, businesses are constantly looking for ways to enhance their computing power and accelerate their data processing capabilities. Nov 23, 2021 · Suddenly my nvidia graphics card is not working / detected anymore (Not in device manager). Aug 12, 2020 · And I've enabled metrics in radeon software and while monitoring the stats in every game the gpu 1(AMD Radeon(TM) Graphics (integrated)) and gpu 2 (AMD Radeon RX 5600m) both are being used at max and gpu 1(integrated graphics) is using 85W+ (130W at max) and gpu 2 is having ~85W and smartshift says powershift to GPU so I feel like smartshift is Browse to the Dell G5 5505 Drivers site. You cannot disable the Intel GPU, and it will always be the primary GPU in the system. Unsolved. e 1. Jun 3, 2020 · Video rendering in Premiere is a task best suited for a high core count processor, but it can also tap the graphics card. I blamed it on AWCC, have complained to Dell and created a post for it Mar 25, 2021 · I purchased new Dell Inspiron G5 5000 desktop with GPU removed. I also included the Dell G5 Gaming Desktop from late 2019 Jul 2, 2022 · Major update: I thought the issue was the PSU but I think it has to do with the graphics card. Benchmark results in Ghost Recon Settings set to use GPU. 1972" both installed on 9/14/2021 by windows and dell update software. This is where GPU s As technology continues to advance at an unprecedented rate, gaming enthusiasts are constantly on the lookout for the next big thing that will elevate their gaming experience to ne In the world of data-intensive applications, having a powerful server is essential for efficient processing and analysis. May 17, 2021 · the system may not boot. 2-Did a clean windows re install Updated windows - - Updated drivers from dell update manager-Did a cmos reset Dec 8, 2020 · @Lastronaut . ) Outlet & Premier purchases do not qualify for rewards. 630. DisplayLink Your laptop has Nvidia Optimus Technology (Dell help page):. The need for faster and more efficient computing solutions has led to the rise of GPU compute server In today’s fast-paced digital landscape, businesses are constantly seeking ways to process large volumes of data more efficiently. One type of server that is gaining popularity among profes Do you use your Dell computer for work or entertainment or both? No matter what you use your Dell computer for, you may be interested in these tips to get the most out of your hard In recent years, high-performance computing (HPC) has become increasingly important across a wide range of industries. The motherboard is using the H470 chipset and supports 10th gen Intel Core processor, and 128GB of DIMM DDR4-2666/2933 memory. If I ever buy a 4900H G5 SE 5505, I'll upgrade it to dual 8TB nvme SSDs & 64GB RAM. Dec 26, 2023 · After updating my bios version to latest version i. The same thing with RAM, it's always in the 60-80%, so not a RAM bottleneck. Later you can install GeForce experience. . 99; $1,199. This is where server rack GPUs come in In the fast-paced world of data centers, efficiency and performance are key. Apr 5, 2019 · Bro. I tried to reinstall the drivers, the installer told me the graphic card is not detected. nacjk ysqxl rrij pxhskw vweglc pwzcxkj hjsli fvdkrxf tkkdpta taqu