Question about HP Compaq Presario SR1420nx (SR1420NXPS69AA) PC Desktop

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How to open compaq presario sr1420nx computer

Wont boot up keeps turning on and off byitself and when it did turn on getting unmountable boot volume error

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You have a virus in your computer. Boot the computer, immediately hit the delete key until you can get to the setup screen and it will allow you to format your drive.

Posted on Nov 29, 2012

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: compaq presario sr1420nx fan noise

Just replace the fan. They are a standard commodity and not hard to change. Get a good one this time. You get what you pay for.

Posted on Feb 14, 2008

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SOURCE: windows wont boot. it keeps coming up to start in

Windows operating system might have changed recently. You may need to repair install the operating system. Does the recovery of computer work? I could say if you don't have the repair CD , you could get one from Microsoft. Microsoft customer service person ask you some questions about the legal copy of the software on the computer. If you had registeted microsoft software then it would cost you $10 for CD.

Posted on Sep 17, 2009

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SOURCE: compaq presario sr215onx wont boot up

Go to and download boot files for your operating system (ex. Windows XP). There are software for floppy disk which is the easier way to get your boot files. If you do not have a floopy you will have to get the CD files, there you have all the instructions how to get the CD. Once you get the files, insert the floopy or the CD and reboot your computer. The filse should be installed automatically, if not do it manually and reboot computer again.

Posted on Oct 30, 2009

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SOURCE: compaq presario sr1420nx wont turn on fan keeps going on an off as well as green light

Test your PSU power supply unit or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle of restarting or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive power and data cables IDE SATA

the leads from your MOTHERBOARD TO YOUR HARD DRIVE make sure they have a secure dust free connections and are not faulty or just replace them they could be faulty

make sure all leads that are attached to your dvd\cd floppy drives have secure connections and are not faulty or just replace them they could be faulty

computers need power and data to travel through every working device to continue its cycle and have an end so any faulty leads will end up with a computer error

even something as small as a faulty electrical or fan lead can cause you problems

motherboard and a Hard Drive any leads between them will fail before your motherboard or your hard drive if its a flat ribbon 40 pin type IDE replace it this will be the first to fail.

Check all electrical power input and extensions make sure they are securely seated even the cd/dvd floppy drives need to have current go through make sure these drives are working

also check the Cmos battery and computer RAM modules make sure they are securely seated with no dust built up or in the sockets on some motherboards cmos batteries are soldered in.

Check you CPU central processing unit make sure its securely seated and has thermal paste it might be getting to hot the thermal paste will help disperse the heat

Thermal compound is a sticky paste that is placed directly onto the CPU.

Allowing for a more direct heat transfer between the CPU and HEAT SINK and preventing air gaps from forming between the CPU and heat sink.

Hope this helps.

Posted on Nov 26, 2012

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Compaq presario sr1420nx wont boot up keeps turning on and off resetting rapidly how to open computer..when it did turn on was getting unmountable boot volume error had it fixed at geek squad once and 3...

Turning on, and off sounds like bad capacitors on the motherboard.

I don't believe the members of the organization you took it to; have the savvy to repair.
(Frankly I don't think they could pour P out of a boot..................Wait!...............Did I say that out loud?)

This is what it states from Microsoft for 'Unmountable boot volume',

The jist is the Harddrive cannot be reached - Bad IDE ribbon cable
The Windows files are corrupted - Use Restoration Disk
BIOS Settings are set wrong.

I'm going to state something different. May be putting my neck out...

Capacitors on the motherboard.
To be specific the ones used on your motherboard are Electrolytic Capacitors.
More specifically; Radial Aluminum Electrolytic Capacitors

An Electrolytic Capacitor has Electrolytic paste inside.
When the capacitor starts to fail, it's because the paste has developed a gas inside. Hydrogen Gas. The gas expands, and pops the seals of the capacitor open.

So much paste loss, and the capacitor operates at a weakened state.
Too much paste loss, and the capacitor fails.

Capacitors are used as Voltage Regulators, and Filters.
The ones used as Voltage Regulators, are in the Motherboard Voltage Regulator Circuit,

Part of what the motherboard voltage regulator circuit does; is to regulate voltage for the Processor.
The Processor MUST have a steady, 'clean', supply of voltage; and it MUST be kept within the small tolerance range, for the Processor.

Cannot be too much, or too little; or BIOS will turn the Processor off.

The Processor is the 'Brain' of the computer.
Guess what happens if it turns off, turns on, turns off, etc?

I think what you are seeing.
Cannot access boot files on the harddrive.
No processor.

Computer off, and unplugged from power.
FOLLOW Anti-Static Precautions.

Anti-Static Precautions
Your body carries Static electricity. Static WILL fry out (Short Circuit), the delicate hardware components inside a computer.
Relieve your body of Static BEFORE reaching inside your computer.

Computer ON a table, computer unplugged from power, computer case open;
TOUCH an unpainted surface, of the metal frame of the open computer case.
This action will relieve your body of Static.

IF you leave your computer in the middle of working on it, be SURE to Touch the metal frame again, upon your return.

There are going to be cables (Wires), in the way. You can gently move them aside to look at the capacitors. L@@K close. May need a bright light, and magnification.

Capacitors look good, I'm full of beans?
OK. Onward through the fog.

Replace the IDE ribbon cable going TO the harddrive.

Test the Power Supply, or see if you can borrow a KNOWN to be good, Compatible power supply; from a working computer for a test.

I think capacitors, therefore motherboard replacement.

Not advertising for seller, nor website. Just from a quick search,

MAKE notes, and drawing/s as to where EACH cable plugs into.
The ones I may not be able to help you with, are USB, Front Panel audio, Front Panel Firewire (1394a)
Power cables, data cables to optical drive/harddrive, plus Front Panel header; yes.

For additional questions please post in a Comment.


Nov 28, 2012 | HP Compaq Presario SR1420nx...

1 Answer

Compaq presario sr1420nx fan noise

Just replace the fan. They are a standard commodity and not hard to change. Get a good one this time. You get what you pay for.

Feb 14, 2008 | HP Compaq Presario SR1420nx...

1 Answer

Compaq Presario 700 PC Notebook Windows blue screen unmountable boot volume

The file system on the hard disk is corrupted. The only thing you can do is to reinstall Windows, and during the process select the full format, not the quick one.

Nov 27, 2010 | Compaq Presario 700 470024-192 Notebook

2 Answers

How to do a factory recovery for a Compaq Presario

turn off your computer.
press the power button to turn the computer on and start hitting the F10 key as soon as the computer turns on.
it would take you to the recovery wizard which will guide you through out the process of recovery

Jun 11, 2010 | HP Compaq Presario SR1420nx...

1 Answer

No complete starting

Unmountable boot volume means your harddrive has gone out.You will have to get a new one and load your os again.Sorry:-(

Apr 08, 2010 | HP Compaq Presario C502US Notebook

1 Answer


Could be one of two things: either the power supply is going bad or the RAM is either going bad or isn't seated properly inside.

First thing I would try would be to re-seat all the memory chips inside the computer. There could be up to 4 sticks of memory in some computers. If this doesn't work, try pulling the memory out of the computer one stick and a time and booting the PC. If it boots, you've found your bad memory stick. Put all the others back in and replace the faulty one.

If none of this works, you might consider calling HP (maker for compaq) for support on getting the power supply replaced.

Jan 19, 2010 | HP Compaq Presario SR1420nx...

1 Answer

Sr1420nx not reading cd

you mean the cd does not auto start? did you try to acess the cd manually through my computer or windows explorer?

May 17, 2008 | HP Compaq Presario SR1420nx...

2 Answers

Computer shut down ..wont restart

what has happened is your hard drive as failed and that is why it shut down and then gave the unmountable boot volume. You could try repairing windows using your XP cd but it's a new hard drive i recon.

Oct 05, 2007 | Compaq Presario M2000 Notebook

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