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My PC is not turning on.

I have cleaned the ram,but still it is not turning on.after putting on the power button the processor fan is running and smps fan is also running.
When i removed the ram and turned on the pc it is not producing any beep sound.
please assist !!

my motherboard is of murcury,ram 512 ddr1,hdd 120gb,processor p-4

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Please re-set the CMOS battery for 2mins then power-on the computer, and see if you can get any beep sound.


Posted on Jun 11, 2008

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Hi i have pc with motherboard M845GL mother board, when i powering on, nothing happen means no processor even runs, my smps is alright. what are the problem may be ..?

Hi, Mayur here. To fixed this issue first check the power code is working or not. Get a new power code. Then remove RAM chip clean the RAM chip and plugged it again. Then start your system It works. Try it.

Sep 02, 2011 | Computers & Internet

2 Answers

My Acer Aspire M3201 has stopped booting up. The PC powers up and the lights come on but there is no signal to the monitor. All I get is a black screen (no start up logo or even mouse pointer). I've tried...

Bad Power Supply. Weak voltage power rail.

1) Acer's are known for low quality Power Supply's.

A) Low quality Electrolytic Capacitors
B) Low quality Rectifier Bridge setup.
C) Low quality MOSFET's.
D) Wiring that is used inside is too small of a gauge.

2) Dirt, dust, hair, etc., can render a Power Supply useless.

The Power Supply's used for today's computer are SMPS.
Switched-Mode Power Supply.

The cooling components are Heatsink's used inside, and an internal fan.

[ Typical construction of a Heatsink is a plate of metal with tall, thin fins protruding from it.
The plate of metal absorbs heat from whatever object it is placed against.
The tall, thin fins absorb heat from the plate, whereby they radiate the heat away.

If a fan is used along with the Heatsink, the air flow from the fan carries heat away from the Heatsink/s ]

When the cooling components for the SMPS are clogged with gunk, (Fan and Heatsink/s), the cooling capacity drops tremendously.
Heat = Wasted Energy
The SMPS strains to keep up with the call for power, but eventually cannot, and hardware components inside fail.
The SMPS fails.

3) ALL of the LED lights on at one time use less than 1 Watt of power.
Each fan uses 2 to 3 Watts
A typical Processor can use 51 to 125 Watts.
Depends on the Processor.

The Acer Aspire M3201 uses different versions of the AMD Phenom processor.
Phenom X3 8650 (2.3GHz)
Phenom Quad X4 (2.2GHz)
Are just two of the AMD Phenom's.

Depending on the Phenom processor it can use anywhere from 65 Watts to 125 Watts.

With a bad Power Supply you can have enough power to light LED lights, and spin fans, but not enough to turn the Processor on.

No processor operating, No computer.
No computer = No video signal to the monitor.

Suggest you unplug the computer from power, (Computer off. Hold the Power On button in for a count of 10 seconds), observe Anti-Static Precautions, and use a can of compressed air for computers to clean the inside of the computer out.

Remove the Ram Memory module/s, ('Sticks'), and clean the gold plated contact pins on the bottom, with a pencil eraser. Remove the eraser dust with air. (Use a can of compressed air for computers if available, or air pressure from your mouth will be sufficient)
Reinstall the Ram Memory modules.

Plug the computer into power. WAIT 1 minute, turn the computer on.
Still no?
Replace the Power Supply.

Oct 31, 2010 | Acer Aspire M3201 Phenom X3 8650 PC...

1 Answer

Computer will not start

Follow these,

1. cheka your all power .
2. remove your ram clean th e slot and ram both by a light napkin then put it back.
3. watch the SMPS fan its working? if not then your SMPS damages.
3. if you get long beeeppppp sound then your ram damaged. after chake athese all if not working call your service man. its a hard/software problem.

Jan 30, 2010 | HP Pavilion a1600n (882780776265) PC...

1 Answer

Dosen't boot

Open cpu cabinet.
Refix RAM memory.
Clean dust from all parts.
Reattch ATX power connector from smps to motherbord.
Pull cmos cell from motherbord for 10 minutes so all settings are defaults.
REmove pci cards from pci slot of motherbord then check.
Open processor fan and processor then refix both.
Make sure motherbord not ground with cabinet cover.
Then check if still problems then change ram .check RAM and motherbord separately .

Nov 21, 2009 | HP Computers & Internet

1 Answer

Dimension 8250 will not turn on but on button

open cpu cabinet
Refix RAM memory then check.
Pull cmos cell for 10 minutes frommotherbord so all settings defaults.
Also clean dust from all circuit.
Reconnect ATX connector from smps supply to motherbord.
Refix processor fan and processor.

Let me know if you need more assistanse.

Aug 31, 2009 | Dell Dimension 8250 PC Desktop

1 Answer

When I turn on my dell the processor fan comes on at high speed, but will not boot.The computer booted the night before and had no problems. I aam using a friends computer to send this problem.

First pull cmos cell from motherbord for 10 minutes so all settings defaults.
Then pull RAM memory clean dust from all circuits Put RAM in its position.
Then check .
If still same issue then reconnect ATX power connector from smps power supply to motherbord.
Dis connect harddisk connection and then check .
If you get display then connect harddisk connection again.
Then also open processor fan and processor then fix both again.
Then power up press F1 or F2 or "del" to enter in bios .
Then check in bios harddiks is detected or not?
Let me know if you need more assistanse.

Aug 31, 2009 | Computers & Internet

2 Answers

Hp slim line s7700n when turned on beeps

open cpu cabinet
Refix RAM memory then check.
Pull cmos cell for 10 minutes frommotherbord so all settings defaults.
Also clean dust from all circuit.
Reconnect ATX connector from smps supply to motherbord.
Refix processor fan and processor.

Let me know if you need more assistanse.

Aug 27, 2009 | HP Pavilion s7700n (5584788) PC Desktop

2 Answers

Power turns off after a few seconds

Open your case, power up and then look at the CPU fan. If it spins normally, you may go to bios set up, look for Hardware Control, go to the fan subject and disable the function of watching CPU temperature or put it at the highest rank. If it does not help, you may think of RAM problem.

Aug 11, 2009 | Computers & Internet

1 Answer

Cpu fan stopps

try to clear cmos with the jumper next to the mainboard battery

hit delete enter setup bios and save changes

chek if the main board is not in unapropriate contact with the metal case.

chek the fans power connector pins in the board

and finally make sure that ur power supply is functionong properly.

Nov 14, 2007 | Computers & Internet

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