That indicates a low-level hardware failure. Computers will not boot unless a keyboard is plugged in. At this point, the boot signal from the power supply is not even reaching the BIOS the "beep" that you usually hear indicates keyboard recognition and that comes from the BIOS long before the hard drive is recognized. However, the fans spin up and I assume that the power-on light on the motherboard ("mobo") is on (if your board has one-some don't). I assume from your quote that there used to be a system beep when booting (correct me if I am wrong), and now there is none. I assume that the monitor is dark and unresponsive. There is no single program that tests the complete motherboard. The only way to arrive at a conclusion is by testing the involved components 1X1 via process of elimination. There is no recent history of viruses or any application or other downloads or any external/internal component additions recently.
I have Norton 360 which runs every 3 days because of the kids using it while I travel and I run Windows Defender once monthly. This computer has given us no problems other than being Win 8 OS.lol. I have also pulled and reset the RAM and removed and replaced the BIOS battery. The monitor is a lenovo so its not the monitor screen. The HP logo comes up instantly as the computer is powered up but that is the extent of the startup. The keybords work when attached to a laptop. I also tried a wireless keyboard in all USB ports with no effect either. I tried start up with the F2, F8 F12, delete and esc keys pressed independtly and together, anyway, with no effect. The wired keyboard does not seem to have power as no key lock lights illuminate. The computer powers up and the hard drive spins for about 1 second with the yellow hard drive light illuminated then fading. Last Wednesday, a black screen with blue HP logo was as far as it would get during startup. My 12-yr old son reported that computer would not start while I was traveling last week.
LAN (ethernet), DVI-D, DVI-I, Audio center/subwoofer, Audio rear speaker outĪudio side speaker out, Audio line-in, Audio line-out, MicrophoneĪlthough the motherboard is second user, it has been fully inspected, cleaned and tested by our experienced technicians.Anything I can do at home to tell which component is bad? Does it sound like the motherboard? How can I test it? Transmission standards: 1000-Base-T Ethernet Technology: RTL8171FH-CG gigabit ethernet controllerĭata transfer speeds: up to 10/100/1000 Mb/s Integrated audio is not available if a sound card is installed. Use of both DVI ports at the same time is supported. Integrated graphics: Intel Graphics Media Accelerator HD (DX10.1)Įither integrated graphics or the PCI Express x16 slot are usable at one time they are not usable concurrently. Integrated video is not available if a graphics card or an Intel processor ending with “P” is installed.Ī processor that supports graphics is required for integrated graphics to be enabled Intel Pentium G8xx (Sandy Bridge) Dual Core up to 65W
Intel Pentium G6xxT (Sandy Bridge) Dual Core up to 35W Intel Pentium G6xx (Sandy Bridge) Dual Core up to 65W Intel Core i7-2xxx (Sandy Bridge) Quad Core up to 95W Intel Core i5-2xxx (Sandy Bridge) Quad Core up to 95W Intel Core i3-2xxxT (Sandy Bridge) Dual Core up to 35W Intel Core i3-2xxx (Sandy Bridge) Dual Core up to 65W Intel Core i5-3xxx (Ivy Bridge) Quad Core up to 77W Intel Core i5-3xxxP (Ivy Bridge) Quad Core (onboard graphics not supported) up to 69W
Intel Core i5-3xxxS (Ivy Bridge) Quad Core up to 65W Intel Core i5-3xxxT (Ivy Bridge) Quad Core up to 45W Intel Core i5-3xxxT (Ivy Bridge) Dual Core up to 35W Intel Core i3-3xxx (Ivy Bridge) Dual Core up to 55W Intel Core i3-3xxxT (Ivy Bridge) Dual Core up to 35W Motherboard supports the following processor upgrades: