Computer will not boot

look at the pci motherboard add on cards plugged into the motherboard . maybe one of them has gone faulty or is not seated properly in the pci slot.

no PC stated (name model) you did post to computers so....
No OS stated (windows 10? Linux, or? )
no options in or on the PC stated, cards present, usb toys connected. etc.

AMI BIOS beep codes Below are the AMI BIOS Beep codes that can occur. However, because of the wide variety of different computer manufacturers with this BIOS, the beep codes may vary.
Beep Code Descriptions 1 short DRAM refresh failure 2 short Parity circuit failure 3 short Base 64K RAM failure 4 short System timer failure 5 short Process failure 6 short Keyboard controller Gate A20 error 7 short Virtual mode exception error 8 short Display memory Read/Write test failure 9 short ROM BIOS checksum failure 10 short CMOS shutdown Read/Write error 11 short Cache Memory error 1 long, 3 short Conventional/Extended memory failure 1 long, 8 short Display/Retrace test failed Award BIOS Beep codes that can occur. However, because of the wide variety of different computer manufacturers with this BIOS, the beep codes may vary. Beep Code Description 1 long, 2 short Indicates a video error has occurred and the BIOS cannot initialize the video screen to display any additional information Any other beep(s) RAM problem. If any other correctable hardware issues is found the BIOS displays a message. No Power, Loose Card, or Short.1 Short BeepNormal POST, computer is ok.2 Short BeepPOST error, review screen for error code.Continuous BeepNo Power, Loose Card, or Short.Repeating Short BeepNo Power, Loose Card, or Short.One Long and one Short BeepMotherboard issue.One Long and Two Short BeepsVideo (Mono/CGA Display Circuitry) issue.One Long and Three Short Beeps.Video (EGA) Display Circuitry.Three Long BeepsKeyboard or Keyboard card error.One Beep, Blank or Incorrect DisplayVideo Display Circuitry. Phoenix BIOS Q3.07 OR 4.X Beep Code Description and what to check 1-1-1-3 Verify Real Mode. 1-1-2-1 Get CPU Type. 1-1-2-3 Initialize system hardware. 1-1-3-1 Initialize chipset registers with initial POST values. 1-1-3-2 Set in POST flag. 1-1-3-3 Initialize CPU registers. 1-1-4-1 Initialize cache to initial POST values. 1-1-4-3 Initialize I/O. 1-2-1-1 Initialize Power Management. 1-2-1-2 Load alternate registers with initial POST values. 1-2-1-3 Jump to UserPatch0. 1-2-2-1 Initialize keyboard controller. 1-2-2-3 BIOS ROM checksum. 1-2-3-1 8254 timer initialization. 1-2-3-3 8237 DMA controller initialization. 1-2-4-1 Reset Programmable Interrupt Controller. 1-3-1-1 Test DRAM refresh. 1-3-1-3 Test 8742 Keyboard Controller. 1-3-2-1 Set ES segment to register to 4 GB. 1-3-3-1 28 Autosize DRAM. 1-3-3-3 Clear 512K base RAM. 1-3-4-1 Test 512 base address lines. 1-3-4-3 Test 512K base memory. 1-4-1-3 Test CPU bus-clock frequency. 1-4-2-4 Reinitialize the chipset. 1-4-3-1 Shadow system BIOS ROM. 1-4-3-2 Reinitialize the cache. 1-4-3-3 Autosize cache. 1-4-4-1 Configure advanced chipset registers. 1-4-4-2 Load alternate registers with CMOS values. 2-1-1-1 Set Initial CPU speed. 2-1-1-3 Initialize interrupt vectors. 2-1-2-1 Initialize BIOS interrupts. 2-1-2-3 Check ROM copyright notice. 2-1-2-4 Initialize manager for PCI Options ROMs. 2-1-3-1 Check video configuration against CMOS. 2-1-3-2 Initialize PCI bus and devices. 2-1-3-3 Initialize all video adapters in system. 2-1-4-1 Shadow video BIOS ROM. 2-1-4-3 Display copyright notice. 2-2-1-1 Display CPU Type and speed. 2-2-1-3 Test keyboard. 2-2-2-1 Set key click if enabled. 2-2-2-3 56 Enable keyboard. 2-2-3-1 Test for unexpected interrupts. 2-2-3-3 Display prompt Press F2 to enter SETUP. 2-2-4-1 Test RAM between 512 and 640k. 2-3-1-1 Test expanded memory. 2-3-1-3 Test extended memory address lines. 2-3-2-1 Jump to UserPatch1. 2-3-2-3 Configure advanced cache registers. 2-3-3-1 Enable external and CPU caches. 2-3-3-3 Display external cache size. 2-3-4-1 Display shadow message. 2-3-4-3 Display non-disposable segments. 2-4-1-1 Display error messages. 2-4-1-3 Check for configuration errors. 2-4-2-1 Test real-time clock. 2-4-2-3 Check for keyboard errors 2-4-4-1 Set up hardware interrupts vectors. 2-4-4-3 Test coprocessor if present. 3-1-1-1 Disable onboard I/O ports. 3-1-1-3 Detect and install external RS232 ports. 3-1-2-1 Detect and install external parallel ports. 3-1-2-3 Re-initialize onboard I/O ports. 3-1-3-1 Initialize BIOS Data Area. 3-1-3-3 Initialize Extended BIOS Data Area. 3-1-4-1 Initialize floppy controller. 3-2-1-1 Initialize hard disk controller. 3-2-1-2 Initialize local bus hard disk controller. 3-2-1-3 Jump to UserPatch2. 3-2-2-1 Disable A20 address line. 3-2-2-3 Clear huge ES segment register. 3-2-3-1 Search for option ROMs. 3-2-3-3 Shadow option ROMs. 3-2-4-1 Set up Power Management. 3-2-4-3 Enable hardware interrupts. 3-3-1-1 Set time of day. 3-3-1-3 Check key lock. 3-3-3-1 Erase F2 prompt. 3-3-3-3 Scan for F2 key stroke. 3-3-4-1 Enter SETUP. 3-3-4-3 Clear in POST flag. 3-4-1-1 Check for errors 3-4-1-3 POST done - prepare to boot operating system. 3-4-2-1 One beep. 3-4-2-3 Check password (optional). 3-4-3-1 Clear global descriptor table. 3-4-4-1 Clear parity checkers. 3-4-4-3 Clear screen (optional). 3-4-4-4 Check virus and backup reminders. 4-1-1-1 Try to boot with INT 19. 4-2-1-1 Interrupt handler error. 4-2-1-3 Unknown interrupt error. 4-2-2-1 Pending interrupt error. 4-2-2-3 Initialize option ROM error. 4-2-3-1 Shutdown error. 4-2-3-3 Extended Block Move. 4-2-4-1 Shutdown 10 error. 4-3-1-3 Initialize the chipset. 4-3-1-4 Initialize refresh counter. 4-3-2-1 Check for Forced Flash. 4-3-2-2 Check HW status of ROM. 4-3-2-3 BIOS ROM is OK. 4-3-2-4 Do a complete RAM test. 4-3-3-1 Do OEM initialization. 4-3-3-2 Initialize interrupt controller. 4-3-3-3 Read in bootstrap code. 4-3-3-4 Initialize all vectors. 4-3-4-1 Boot the Flash program. 4-3-4-2 Initialize the boot device. 4-3-4-3 Boot code was read OK.


http://www.computerhope.com/beep.htm

Reinstall the Window 7

Hello sumeetbapu,

Here are 2 suggestions which might be helpful in determining the cause of the nmi error:

• 1. Use the Windows Memory Diagnostic tool to test the RAM on your computer:
http://oca.microsoft.com/en/windiag.asp

• 2. Review this article from Microsoft Developers Network: What does an NMI error mean?
http://blogs.msdn.com/b/oldnewthing/archive/2007/02/27/1769274.aspx

Finally, you may need to replace a memory module. If you need help with replacing the memory, please be sure to ask.

If this solution is helpful please click a thumbs-up rating below.

Have a great day,
martyshaw152

In my experience, you get a memory parity error when one of your memory sticks has gone bad.
I don't know how many sticks of memory you have or what size they are, but you can try removing one and see if the error goes away. If not, remove another and try again.

You're probably looking at buying some new memory. If so, use the opportunity to increase your memory within the limits of your operating system.

Win XP, 32 bit, will see up to about 3.2MB of RAM
64 bit can see over that up to about 8MB

increase ur virtual memory then for high resolution game u should install a graphics card , nvidia graphics card is the good quality card . After doing that plz check

I THINK IT IS MEMORY UPGRADE, ALSO MAYBE A PARITY ERROR, SOME MEMORY DO NOT NEED PARITY ON THE CHIP SET, AND IF IT HAS PARITY ON THE CHIP THAN YOU GET ERRORS,

REMOVE THE NEW MEMORY AND SEE IF THE MACHINE WILL WORK IF SO THAN THERE IS SOMETHING WRONG WITH THE NEW MEMORY,

RAM TYPE: EDO, PARITY AND NON PARITY MEMORY, FPM MEMORY, THE CACHING MEMORY NEEDTO TO HAVE L1 OR L2 OR EVEN L3 CACHING CAPABILITIES,NMI ERRORS .
not:::: EAch manifacture may have a different voltage in the curcuitry and it may have the wrong voltage but i think that way out there and not to even consider it.....

does the manufact even allow that much ram upgrade???

rod

Three beeps for that bios is a memory error.Are you sure it's not a memory issue? Did you clear the CMOS and try to boot up again?