Black screen system will not boot

My pavillion dv7 will not boot up. i can hear fan running but it will nit open. I have tried to go into recovery system but ti no avail. Black screen.

Any flashing lights and beeping sounds?
Sorry because of different timezone I might not be able to help/reply you right away.IF that happens I deeply apologize!
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System will not boot up

MB: KT6 Delta-LSR
CPU: XP2500 Barton
GFX: Asus V9520 Magic/T 128mb
RAM: 1028 pc3200 ddr400 (2x512) Geil Branded
HDD: Maxtor 40GB 2mb Buffer
Put it all together formatted the HDD, installed windows, network was working perfectly. (on ASUS via600 board)
Next day turn it on and nothing, zilch not even a flashing cursor top left of screen, dont even boot to DOS. screen is completely blank.
Tested CPU, GFX, RAM and PSU in another base unit and they work fine, yet put them all together and nothing.
1st I thought it was the mainboard so I sent the ASUS board back and ordered the KT6 Delta nice looking board. But still exactly the same problem.
Lights on case are lit all fans are turning ect yet still the system will not boot up i dont even get a flashing cursor top right of my screen.
There is no light with this mainboard for some reason.
All components work when fitted to another mainboard in a different case.
NB: one thing I have noticed is that there are two power sockets on this board,
1. The usual 20 pin socket (which I am connected to)
2. A 4 pin socket near to the CPU (whilst my PSU has a plug that will fit this sockect also, I am unsure as to connect instead of/as well as or leave unplugged.

Like I have stated before, it is the compatibility issue related towards your chip fsb and your memory fsb. I know that not everyone has money to go buy another stick of memory, I don't. But maybe you could exchange from the place you bought and say that it was a mistake? The cheapest route without getting the fsb chip to match the fsb of the memory stick is to get PC2700 memory. Have you tried going for this yet? I'm sure that your motherboard may not be shot, my board didn't get shot after trying to the two different fsb. You have to understand, motherboards are picky when it comes to running the hardware. If there is a conflict, it won't run right, I could run at a lower fsb and get it to work fine, but it wasn't at it's full potential, and I wasn't going to waste my time trying to find the fsb that would work correctly. So, I just let my friend have the stick back. This is why I'm asking you to try a lower speed stick of memory, because I have experienced this. But so far you haven't even seemed to notice my replies, could you take a quick overview of what I have said? Sorry if I come off as rude, just I am taking the time to write these replies and really am trying to help from my knowledge base. I have experienced this type of problem of what you are talking about personally.
Ok, so maybe I might not know it all, seeing that other people replying here have the same mb spec and chip fsb and memory like your trying to run, they might know more when it comes to that area for sure, just I didn't have luck trying to run a faster stick of memory compared to my chip, even though my board could run it, I couldn't get it to work, at all. I would just get a black screen, I thought I shot my GPU. Then I reset CMOS and the bios would flash, then when it would start pulling from harddrive, boom, black screen again. I had my friend tinker with my volt. to the right volts of the memory stick, still couldn't get nothing. This is why I am a little skeptical about you being able to run it at all in the long run. Hopefully you can find a way, maybe it is your manufacturer of your stick, but my conclusion is, if it isn't going to work with one, or two of same speed, try lowering it. Like I said, I tried it on this setup right now, and I didn't have to replace the chip or mobo, or gpu, so those should be fine.

Blue screen, computer will not boot up

My computer, when powered up gets stuck on a blue screen and will not boot up. I have restarted & held down the shift button for safe mode & it goes to a white screen with a grey apple icon but will not move past this screen. How do I get the computer to boot up?

Sounds like your system is hosed. Try [repairing the hard drive with Disk Utility|http://support.apple.com/kb/TS1417]. Of course, from the sounds of it, even if you get the drive repaired, it may not fix the problems with your system.
Do you have backups? If not, your only priority at the moment should be to figure out how to back up your data, or what data may still be intact if your drive is badly damaged. If you have another Mac, the easiest way to do this will be to boot the machine into [FireWire target mode|http://support.apple.com/kb/HT1661] and copy whatever data you can.

Windows 8 and Canvio Desk 3TB: System will not boot when external hdd is connected

http://h30434.www3.hp.com/t5/Desktop-Operating-Systems-e-g/HP-PAVILION-A6109N-amp-windows-8-System-w...
Hi,
just recently upgraded to Win Pro on my HP PAVILION A6109N. I also bought a toshiba canvio desk 3TB. What I notice is that if I reboot my pc with the extermnal HDD connected, my system will not boot.
I have check my BIOS boot settings and the order of the boot.
I have tried disabling USB Legacy Support in the BIOS
I have reformatted the external HDD
but still my desktop will not boot if the external HDD is connected....If I disconnect the external HDD...the system will boot up ....
I am at a loss....*** scratching my head ***

Update: The only solution for me was to format the drive as ext3 and plug it into one of my Asus RT-N66U USB ports, as most routers don’t yet recognize 3TB drives as NTFS. It’s not much help to people who don’t have a router with this capability, and it also slows transfer rates to ~12MB/s.
Given the short length of the cable, your only other options are to have the 3TB Canvio sitting right next to you so you can unplug from a front USB port before each boot, or place it towards the rear of your desk and crawl under the desk to disconnect it from your PC prior to each boot.
It's a pity because Toshiba produce great internal HDD's, but my experience when it comes to external drives is they're simply junk. I wish I had read the reviews before purchasing.

My iPod Nano (fourth generation) is stuck on a black screen and will not charge. It's done this before and you can still see a faint outline of the green charging sign and the time/date. HELP

My iPod Nano (fourth generation) is stuck on a black screen and will not charge. It's done this before and you can still see a faint outline of the green charging sign and the time/date. HELP

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

The system will not boot

Hello, I am trying to install windovws after the restart can not install Yosemite because can`t please format the hard disk.Please help because just yesterday bought macbooc

FYI...the top partition is too full. You need free space. You will need to remove the bottom partition then make the top partition larger. Make sure you have 10% or more free space. If you use Parallels or VMware you don't have to partition your drive. If you use the vm software you can run Windows wihtout having to reboot into bootcamp each time you want to use it.
See this link for help after you resize your top partition.
https://www.apple.com/support/bootcamp/
I forgot to ask...
If the system will not boot, how are you seeing Disk Utility. Are you booted from the Recovery Drive? If yes, then you will need to erase the internal drive and reinstall Yosemite on the internal. When you erase, make it one partition. You can add a second partition later that's smaller.
Note: you posted in the OS X 7 Lion instead of the Yosemite forum. In the future, asking on the correct forum gets the best answers.
Parallels http://www.parallels.com/
VMware Fusion http://www.vmware.com/products/fusion/

Operating reference system will not boot.

hi! bought the iphone 4s in Italy and it does not work. Operating reference system will not boot. Change of firmware and restore did not help. How can I change it while in Russia. Can I send in the mail store??

Hi NcBunky,
Are you using Win 7 64 bit? Did you update the Texas Instruments (TI) USB 3.0 XHCI Host Controller?
I have an H8 1380t PC. Updated the TI USB 3.0 driver and had the same problem.
When booting the PC with the USB 3.0 external drive connected to the PC the PC would not boot. When booting the PC with only the mouse, keyboard, and a USB 2.0 external drive attached the PC would boot. Once booted you could attach the USB 3.0 drive and it worked fine.
Solution was to roll back (reinstall) the TI USB 3.0 XHCI Host Controller to the original factory installed driver.
System now boots with the external USB 3.0 drive attached.
Jaco
****I am not an HP employee****
Please give a" Kudos" if advice received is relevant or" Accept as Solution" if your problem has been solved.
+++++++++++++++++++++++++++++++++++++++++++++++++++++
H8 1380t CTO, Intel i7 3820
16 GB DDR3
Pegatron Motherboard- IPIWB-PB (Pittsburgh), Radeon HD 7570 1GB. Win 7 Home Premium upgraded to Windows 8.1 Pro.
Envy Phoenix 810-150se, Intel i7 4820k
16 GB DDR3
Pittsburgh2 Mainboard, NVIDIA GTX 645- 2GB GDDR5. Win 8.1 Pro.
HP 560z CTO AMD Phenom II X6 1090T
16 GB DDR3.
Radeon HD 6570
Win 7 Home Premium upgraded to Win 7 Pro.
HP ENVY 17t-j000 CTO Quad Edition Notebook. I7 4702mq
12 GB DDR3
Nvidia Graphics
Win 8 Pro
Errare humanum est.

System will not boot with Seagate 3Tb expansion drive plugged in.

I have a HP Pavilion HPE h8- 1214 Desktop , I recieved a Seagate 3TB expasion drive as a gift but when plugged in, the system will not boot. It turns on but thats it. It never gets to the boot sequence. I have it plugged into the top 3.0 usb slot and have tried all of the other slots as well with no sucess. But if I leave it unplugged the system boots right up. I can then plug it in and it works fine. I have plugged it into my wifes HP All- In- One and it boots fine and works. I have a WD 2TB drive that works fine as well on my system . I have searched Segates support for hours and all they say is to change the boot sequence. Have tried that, no go. What they dont get is no matter what I do if that drive is plugged in it never gets as far as booting and reading the boot sequence. Please help. Thank you!

Hi NcBunky,
Are you using Win 7 64 bit? Did you update the Texas Instruments (TI) USB 3.0 XHCI Host Controller?
I have an H8 1380t PC. Updated the TI USB 3.0 driver and had the same problem.
When booting the PC with the USB 3.0 external drive connected to the PC the PC would not boot. When booting the PC with only the mouse, keyboard, and a USB 2.0 external drive attached the PC would boot. Once booted you could attach the USB 3.0 drive and it worked fine.
Solution was to roll back (reinstall) the TI USB 3.0 XHCI Host Controller to the original factory installed driver.
System now boots with the external USB 3.0 drive attached.
Jaco
****I am not an HP employee****
Please give a" Kudos" if advice received is relevant or" Accept as Solution" if your problem has been solved.
+++++++++++++++++++++++++++++++++++++++++++++++++++++
H8 1380t CTO, Intel i7 3820
16 GB DDR3
Pegatron Motherboard- IPIWB-PB (Pittsburgh), Radeon HD 7570 1GB. Win 7 Home Premium upgraded to Windows 8.1 Pro.
Envy Phoenix 810-150se, Intel i7 4820k
16 GB DDR3
Pittsburgh2 Mainboard, NVIDIA GTX 645- 2GB GDDR5. Win 8.1 Pro.
HP 560z CTO AMD Phenom II X6 1090T
16 GB DDR3.
Radeon HD 6570
Win 7 Home Premium upgraded to Win 7 Pro.
HP ENVY 17t-j000 CTO Quad Edition Notebook. I7 4702mq
12 GB DDR3
Nvidia Graphics
Win 8 Pro
Errare humanum est.

How do I get recover disc for vista when system will not boot???? For Pavilion pc a6157c

Pavilion pc a6157c How do I get recover disc for vista when system will not boot????

Read THIS HP Support Document concerning ordering recovery discs for your HP a6157c. Go to THIS HP webpage to order the "Vista Home Premium 32bit 73NAv3PrA1 + Supp 4 Recovery Kit" for your computer. If you are not looking to order the recovery discs or have some other issue with your computer, please provide detailed information concerning the problem.
Frank
Frank
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HP a1632x - Windows 7, 4GB RAM, AMD Radeon HD 6450
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HP p6320y - Windows 7, 8GB RAM, NVIDIA GT 240
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HP p6787c - Windows 7, 8GB RAM, NVIDIA GT 240

My operating system will not boot up and I have a black screen

My laptop just went black as if it was in stnd by mode yet now will not boot up. It gets to the wirl of the fans and the cd drive turning but that is it. I m running the BIOS Test and nothing is showing up. the screen is black with a single dash flashing. can someone help me please as my tech is not that good

Hi @RK3
Welcome to the HP Forums!
It is a great place to find answers and information!
For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide Learn How to Post and More
I understand that your display just went black. If you restart the display remains black with a blinking cursor, but with no error messages. You do hear the fan and hard drive spin up.
Here are two links to assist you with this difficulty.
Troubleshooting problems with notebook displays (Windows 8, Windows 7)
Troubleshooting Black Screen Displays with No Error Messages During Startup or Boot
Best of Luck!
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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System will not boot / black screen

:undecided:Problem: System does not boot. Black screen.
I just put this system together. I've returned the CPU and motherbd. for exchange, thinking one may be defective. Still No Boot. PowerSupply checks out good. MSI video card checks out good too. Could it be the memory stick? Pls. HELP. BTW - Yes, I did remember to plug in the 4-pin power connector.
Motherbd: MSI 865PE Neo2 (option2) (New)
CPU: INTEL P4 2.4G 1 MB L2 533MH (New)
http://www.newegg.com/app/viewproductdesc.asp?DEPA=0&description=19-116-141&ATT=Processors&CMP=OTC-B1zrat3
Memory: 1 dimm - 1GB PC2700 333MHz DDR SDRAM
http://www.ocsystem.com/1gbpc33ddrsd.html
VGA : MSI Video Card - Geforce FX5200-TD128 128MB TV-Out DVI-I (Tested Good)
http://www.ussa.com/ussaonline/product.asp?dept%5Fid=10610&pf%5Fid=100%2D106%2D1004159
PowerSupply : Enermax EG365P-VE-FC 350W (Tested Good)
HardDrive : 120GB WesternDigital

You got me there. I only looked at the LED's after it hangs.
I must wait for my reshippment of my memory. I returned it, and asked them to test it. If it tested good, then it probably not compatible with system. My next option was to order GIGARAM 1GB, since it is on the list of recommended DDR.
Sorry, I cannot reboot at the moment. Do you think it is the memory, or something else?
Thanks,

Laptops screen wont light and the system will not boot most of the time.

my hp lptop g62 started not booting up and the monitor would not light up sometimess even though it would power up. as time passed it had that problem more frequently. now it wont boot at all and the monitor wont light up at all . it will still power up but thats as far as it will go. ive tried a recovery disk but it will not boot the machine either nor will the monitor light up . im a novice so any help will be appreciated.
This question was solved.
View Solution.

Hi
This may be a disply issue try to connect a external monitor to your notebook and see if you get the display there.
You can connect to an external monitor via a VGA or HDMI connection. The usual process to transfer the video output to an external source is to hold down the fn key and press f4. Use the arrow keys to select 'Projector Only' and hit enter.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02013758&cc=us&lc=en&dlc=en
and i also found a couple of links that may help you
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c01884928
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c01443371
Hope this helps.
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System will not boot - Arrives at 'Bluetooth Setup Assistant popup &

A Bluetooth Setup Assistant (BSA) pop-up arrived on my screen looking for bluetooth mouse (which I do not have). It is in front of the log-in screen (I can just see it behind the BSA pop-up). I cannot get rid of it. The keyboard and mouse will not work and i cannot reach any of the system tools as the system has not booted. I tried (a) shutting off & restarting. But it always arrives at this same screen. (b) safe mode start with same result. (c) Command Option PR start with same result. (d)Then put in installation disk to start from disk (Holding down 'C') with same result. Now my installation disk will not eject (holding down mouse button on startup). (e) Also tried startup with firmware (Command-Option-O-F) with same result.
Can anyone help get me round this original problem as well as finding a way of ejecting the installation disk?

Note: I assume in the following that your mouse & keyboard are standard USB wired devices -- if not, please say so. Also, if yours are not Apple branded devices, please mention that too.
It sounds like your keyboard & mouse are not being recognized as connected to your Mac so the OS is looking for Bluetooth devices as an alternate source of user input. If this is so, what may help is to unplug them & plug the keyboard into a USB port on your Mac (not on a USB hub attached to it) after restarting, when you see the BSA screen.
If this doesn't work, try unplugging all other USB devices & repeat the above. If that doesn't work, you may have a defective keyboard or mouse. Check for that by substitution.

Tried to update Mac book pro to maverick now system will not boot

I downloaded the maverick update but something happened during the update and now my Mac book pro will not boot into the os. What should I do?

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal boot may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem? After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

Reset CMOS, system will not boot

This is a long story but I will try to keep it short:
I just bought a new 875P Neo-FISR and a 3.0 GHz Prescott, which from reading the other posts could have been a mistake. I installed the CPU, memory, and the video card and pressed the power button and received a "CMOS Data Wrong" error. So I tried to correct the problem but when I saved and exited then the system would not boot back up. So, I reset the CMOS via the jumper and tried again. After MANY attempts I change just the month in the date setting. And what do you know...it would not boot back up. The D-Bracket LEDs were: 1-flashing red/green, 2-flashing red/green, 3-red, and 4-red
I must have read almost every post in this forum and tried many things such as:
disconnecting all componets except for video, ram, and cpu
the during boot to recover the BIOS
removing mobo from case, maybe a short
moving the memory to different slots
moving the PSU to a different computer...it works
disconnecting the PSU from the mobo and and removing the battery overnight. The first night I did not disconnecting the PSU from the mobo and I found that did nothing.
Tryed everything that I could think of and some stuff that others thought of but nothing worked. However the last item...removing the battery...did change things some. Now nothing happens, and I mean nothing...no lights, no fans, no buzzing...nothing.
Any ideas would be greatly appreciated. The only recourse I have left is to RMA the board.

I tried one stick in all of the slots with and without the sound card. That did not work either.
The voltage for my memory is 2.6 so that is what I tried. But if I can get it to boot up again I will try 2.7.
Tks.

Black screen system will not boot

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