Were you able to test it with another machine to see if it was good? does the computer beep or light up any diagnostic lights? If it doesn't complain about the lack of ram then either your MB is toast, or the BIOS is knackered. Fortunately, most motherboard manufacturers have tools that run in Windows now that allow you to back up the BIOS and restore it somehow if the upgrade fails. Mark as New ; Bookmark; Subscribe; Subscribe to RSS Feed; Permalink; Print; Email to a Friend; Flag Post; Product: Touch smart 300 Operating System: Microsoft Windows 7 (64-bit) My problem is the same as many others I have seen listed. PSU is easy to replace. For a better experience, please enable JavaScript in your browser before proceeding. I've also unplugged. Adjust the power settings, clean the fan vents, update the graphics driver, and then update the BIOS to help reduce the internal temperature. Posting your PC specs will help us to assist you quicker and effectively. So my Hp Touchsmart300 Will not respond to anything I do. Most newer motherboards will have LED indicators and if they aren't all on, it's a sign that the board's gone. It sounds like from your troubleshooting that the Power supply is Ok, as well as your video card. HP Recommended . Given the fan noise you mentioned though I would bet $$$ on the MB or PS.... PSU.....  but can you tell me which fan is noisy if its the psu fan then the culprit of the pc not booting must be the PSU. If it is a case fan, most likely just it being bad and most of the time there is no problems cause by this being bad other than poor circulation. If it does, start adding things until you find the problem. This sounds like a standard power supply replacement issue though. Posted on Jun 26, 2012 1:32 PM Reply I have this question too (328) I have this question too Me too (328) Me too. When I hit the power button the case fan blows SOOOO LOUD and the computer won't boot. if the computer doesn't give a diagnostic beep, the hdd doesn't sound like it's reading, the fans kick in high gear automatically and the RAM is properly seated, then you probably have a bad motherboard or CPU. It should beep rather alot to complain. If it can't POST (and you've verified that the monitor is working correctly) the problem is likely one of those items unless you have a discreet GPU...then it could be that as well. Look for leaking or bulging capacitors. bought a new video card for my desktop a while ago, the 8800gts 320 stock version with my quad-core desktop with no videocard n a 300w power supply. This topic has been locked by an administrator and is no longer open for commenting. Overheating. All forum topics; Previous Topic; I have made following tests: 1. Fans are spinning fast, screen is black, and pic will not boot up. 1 stick of ram and video card. Marcel V Today, I cleaned all the dust out with a vacuum, and got most of it, but couldn't get it all on some of my fans, and couldn't get under my CPU fan, to my heatsink, which has quite a bit of dust. Come join the discussion about articles, computer security, Mac, Microsoft, Linux, hardware, networking, gaming, reviews, accessories, and more! Few days ago, when i boot up computer , it comes up with the message of system battery voltage is low, i ignored it and continued using computer 2. Otherwise, the old adage "if it ain't broke, don't fix it" still applies. If it keeps losing time or is off by a large amount, that's another clue your motherboard battery is bad. A weird non-fan like noise, or that the fan is running full throttle and extremely loud as a result? Noisy fan - HP Pavilion DP0201A 27" FHD All-In-One PC (512GB) - Brand new ‎07-19-2020 06:28 AM. The screen might remain black when there is a corrupted graphics driver or a problem with the LCD display back light. Glad you checked the memory. Dust accumulated in the CPU and graphics card can also prevent your Laptop to dissipate heat. Simply ask a new question if you would like to start the discussion again. Be prepared, and get ready, to read a book right now. At power on the hard drive LED flashes a couple of times and I can hear the disk head moving and then the fan speeds up and nothing else occur. If it doesn't beep, chances are that it is either the motherboard or the power supply. 1. HP Community > Desktops > Boot > Loud fan on startup and nothing goes to the screen? HP Recommended. When a computer fan spins loudly for longer than 20 seconds, there might be an issue with a fan, or the computer might be overheating. There have been so many). noisy fan is a possible dead or dying one, that will not be cooling as designed. HP Desktop PCs - Fan is Noisy and Spins Constantly (Windows) This document is for HP Desktop PCs.