Question about HP Pavilion a305w (DM181AR) PC Desktop

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I can't get monitor to come on even though the power light is on

I bought a new graphics card but I can't get the monitor to come on long enough to disable the integrated video off and turn the card on.

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  • rclifford Feb 15, 2009

    problem is even with the integrated video chip by itself without the new video card, I still cant get the monitor to come on. Thats why I bought the video card.


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Since it's a new card and you know it's working, install it last. Take it out for now and use the integrated video. Start the computer, enter the BIOS setup and disable the integrated video. Save the new settings and shut off the computer. Then put in the new video card and restart.

Posted on Feb 15, 2009

  • Feb 15, 2009

    There is likely more wrong with the motherboard than just the video, then. Most boards autodetect the presence of a plug-in video card and use it automatically. I thought your problem description sounded odd, but figured maybe your board didn't autodetect. I would suggest trying another power supply as a first check, then consider replacing the motherboard if it still won't start properly.


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I turn on my comouter, but the monitor says, no signal, just the fan from the computer and power on light is on, it's like its just trying to open but dont do nothing?


If you can see the 'No Signal' message, your monitor has power. If your computer goes through its regular beeps and grunts then that's a good sign and it could be as simple as checking that the cable between the monitor and the computer is plugged in securely at both ends.

Failing that, if the computer is making it's usual noises, then it is probably your graphics card that has died. If you're brave enough you can open the case and remove the graphics card (some have a small button/pin near the motherboard at the bottom that you need to press to release them) and re insert it into the slot. That may be enough to get it working again. If not, you will need to get a replacement graphics card.

If the computer is not doing its normal noises however, then it could be more serious and the problem may be with the motherboard.

Also, if your graphics card is a part of your motherboard, then if the graphics card turns out to be the problem, you'll need to either get a graphics card to insert in the slot, or get a new motherboard..

Try the above cable/graphics card tests first as they are the likely problem..

May 04, 2011 | Dell Inspiron 530 Desktop Computer

2 Answers

Monitor was in standby mode, computer was on. Now it shows no signal and when we try using the menu button (2) it flashes white, black, red, green, blue then a teal color.

the monitor is not receiving a signal from the computer which is why the multi coloured bars are showing. Ensure the lead is connected and is connected to the correct port of your computer. If it is connected correctly then either your graphics card is faulty or the lead, or monitor is

Apr 03, 2011 | PC Desktops

2 Answers

I CAN SEE THE CPU FAN RUNNING, but i cannot see anything on my monitor,i mean my monitor is still in sleep mode

1) If the monitor has a removable monitor cable, and you have a Known to be good one to use for a test unit, try it. If it isn't removable, try another Known to be good working monitor.

2) If the monitor cable, and the monitor proves to be good, the next thing to suspect would be bad graphics.
Bad Integrated graphics on the motherboard, or if a graphics card is used, a bad graphics card.

3) I suspect it is a bad Power Supply. An issue that comes up so much, that I would skip 1 and 2 above, and check the Power Supply.

A) ALL of the LED lights, mumba_mwaba, use less than 1 Watt of power when in use.

B) EACH fan uses 2 to 3 Watts.

C) A typical Processor can use 51 to 125 Watts. Depends on what Processor it is.
(Older processors such as a Pentium II for example use less)

Enough power to light LED lights, and spin fans, (Or spin a few times and stop), but Not enough power to turn the Processor on.

This is why you may see LED lights lit, and fans spinning, but the computer isn't working.
The computer isn't sending a video signal to the monitor.
No Signal.

Do you have a KNOWN to be good, compatible Power Supply to use for a test unit?
May sound far fetched, but perhaps there is someone who has upgraded to a better computer, and has a computer they're not using, and you could borrow the Power Supply for a test unit.

Oct 29, 2010 | PC Desktops

1 Answer

I added a new video card and the monitor wont come on

1) Did you plug the monitor into the graphics card?

(Hey, happens! Sometimes in our zealousness to see what that baby will do, we mess up a little)

2) Did you install the Drivers? First?

These will be on the installation disk that comes with the graphics card.
Recommend installing the software from the disk FIRST, then turn the computer off, unplug from power, install the graphics card.

3) Does the graphics card require additional power?

Some graphics cards will not receive enough power, from the graphics expansion slot they are inserted into.

[Gateway GM5084 uses a PCI Express x16 slot, for best graphics.

(Left-click on Specifications]

Some powerful graphics cards require additional power cables from the Power Supply.

Post in a Comment.

Sep 29, 2010 | Gateway GM5084 PC Desktop

3 Answers

Starting from about 2 days ago, my monitor has been unable to receive input signal from the computer (Pavilion Elite m9515y). I had originally thought that there was a virus at work, so I scanned for...

"I'm thinking faulty video card2_bing.gif, though I'm not entirely sure."

I'm thinking Power Supply.

Bad Power Supply, weak Voltage power rail.

No Signal on the monitor indicates the monitor is working, but the monitor is not receiving a video signal.

1) Could be due to a faulty monitor cable.
When you used the other monitor, did you try another monitor cable, or is this a VGA monitor where the monitor cable is not removable? (CRT monitor)

2) Monitor cable checks out, the next part of the diagnosis would be the graphics card.
Nvidia GeForce 9600GS


It's a Nvidia GeForce 9600 GS 768MB DDR2
One of the weakest graphics cards, (graphics wise), in the GeForce 9600GS series,

As stated, ensure that the graphics card is seated, down in the PCI Express x16 expansion slot.

[Computer unplugged from power. Observe Anti-Static precautions Before you reach inside the computer.

Anti-Static precautions:

Your body carries Static electricity.
Static WILL fry out (Short Circuit) the hardware components inside a computer.

Computer unplugged from power, computer on a table, computer case open,...TOUCH the metal frame of the open computer case to relieve your body of Static.

Should you walk away in the middle of working on your computer, upon your return Touch the metal frame again ]

After ensuring that the graphics card is well seated, and this is to no avail, I would check to see if the Processor fan is operating.

Computer on, computer case open, observe the Processor fan.
If it isn't spinning, or seems to be spinning very slow, replace the fan.
(Bad fan bearings)

The Pavilion m9515y uses an AMD Phenom X4 9850 processor.
An AMD processor will heat up very quick.
(And typically runs hotter than a comparable Intel)

Without a fan running the Processor could burn up in a matter of seconds.

There is a Fail Safe feature built-in, to shut the Processor off if it becomes too hot.
(BIOS turns it off)

Processor fan is operating okay?
Use the Integrated Graphics on the motherboard, and see if the graphics card is the problem.

The Pavilion Elite m9515y desktop computer has a PCI Express x16 slot, (PCI-Ex16), and also has Integrated Graphics.

(ATI Radeon HD3200, GPU, for Integrated Graphics)

To explain:
The GPU is the 'Graphics Engine'
Graphics Processing Unit.

The GPU chip can be soldered directly to the motherboard, (Integrated Graphics), or soldered to a removable graphics adapter card.

(Integrated Graphics is also know as OnBoard Graphics.
On the motherBoard)

When a graphics (adapter) card is used in the PCI Express x16 slot, the Integrated Graphics is not used.

You can remove the graphics card, plug your monitor into the Integrated Graphics on the motherboard, and reset BIOS to use Integrated Graphics, instead of the graphics card.

Graphics on your monitor?
You know you have a bad graphics card.

[Computer unplugged from power, anti-static precautions observed. Remove the graphics card. Plug the monitor into the Integrated Graphics of the motherboard.

{The Integrated Graphics ports are above where the keyboard, and mouse plug in. (Using a keyboard, and mouse that has a PS/2 connector, not a USB connector)

There is a DVI port, (White. Has three rows of 8 holes, and a horizontal slot to the right of the holes),
and a VGA port, (Blue. Three rows of 5 holes)

Plug your monitor cable into the appropriate Integrated Graphics port.

Press the Power On button in, and hold it in for a count of Five seconds. (And I mean at least Five. Count 1001, 1002, 1003, 1004, 1005)

Let go of the Power On button.
Do this procedure two more times.
What you are doing is clearing CMOS Error Codes, and resetting BIOS back to the factory default settings.

Plug the computer into power. WAIT 1 minute.
Turn the computer on ]

After checking out the monitor cable, and Processor fan, I would like you to bypass the graphics card part of the diagnosis, and check the Power Supply instead.


1) The major cause of computer failure, is Power Supply failure.
Largely attributed to the inside of the computer is dirty, as well as the inside of the Power Supply is dirty.

(The second cause of Power Supply failure, is a low quality Power Supply.
Gauge of wiring is too small.
Electrolytic Capacitors are low quality.
Rectifier Bridge is low quality.
MOSFET's are low quality)

The Power Supply has two cooling components.
The Fan, and Heatsink's used inside.

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, and the tall, thin fins absorb the heat from the metal plate.
The fins radiate the heat away.

If a fan is used in conjunction with a Heatsink, (Such as a Power Supply for example), the air flow from the fan, helps to carry away the heat from the fins.

Once 'Gunk' builds up on the Fan, and the Heatsink/s, the cooling capacity of these two components drops tremendously.

Heat = Wasted Energy
The more heat, the more the Power Supply strains to keep up with the call for power.
Eventually hardware components inside the Power Supply fail, and the Power Supply itself fails.

1) ALL the lights use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts.

3) A typical Processor can use from 51 to 125 Watts.
Depends on what Processor it is.

(Pavilion m9515y uses an AMD Phenom X4 - 9850
Operating at full capacity this Processor can use up to 95, or 125 Watts. Depends on which Part Number it is.
HD9850WCJ4BGH or HD9850XAJ4BGH )

This is why if you are seeing lights light up, and fans spinning, (or spin a few times, and stop), the computer itself may not be working.

Not enough power to turn the Processor on.

A computer Power Supply puts out three main voltages.
A) 3.3 Volts (Wires with Orange insulation)
B) 5 Volts (Red wires)
C) 12 Volts (Yellow wires)

Test is done to specifically check the 12 Volt power rail.
11 to 13 Volts is okay.
Less than 11 Volts requires replacing the Power Supply.

The test is done with a multimeter, or a power supply tester.
(An economical multimeter good enough for this test, will run from $5 to $12.
Here is one example of an economical power supply tester,

Need clarification of something I've stated, or have additional questions, please post in a Comment.
(Believe upper right of your page. We are undergoing changes to improve our website)

By the way.

You have one heck of a computer there.

AMD Phenom X4-9850, and 8GB's of DDR2 Sdram ram memory, (PC6400)
With a decent, not too expensive, graphics card, and a decent Power Supply, you could S-M-O-K-E a lot of gamer computers out there.

Jun 15, 2010 | HP Pavilion Elite m9515y PC Desktop

2 Answers


When a monitor displays No Signal, it is an indication that there is no video signal going to the monitor.

The monitor is working fine.

1) Could be due to a bad monitor cable. They do go bad.

Test would be to take that monitor cable, (If it disconnects), and use it on a known to be working computer.

2) Could be the graphics of the computer.

If the computer has Integrated Graphics, the test would be to install a graphics card, and plug the monitor into it.

[Integrated Graphics is also termed as OnBoard Graphics.
On the motherBoard.

The GPU is the graphics 'engine' of a computer.
Graphics Processing Unit.

It can be soldered directly to the motherboard, (Integrated Graphics), or soldered to a removable graphics card. ]

When you install a graphics card, (graphics expansion card), the Integrated Graphics is bypassed.
The monitor plugs into the graphics card, not the motherboard.

Could be wrong, but I'll bet it's the Power Supply.

If this problem directly relates to a Compaq Presario SR1550NX, the computer is 5 years old. (According to my sources)

If the computer isn't cleaned inside, and the Power Supply isn't cleaned inside, on a regular basis as needed, the Power Supply is one hardware component that is sure to fail.

It's the top problem relating to computer failure.

The cooling components for a power supply is it's fan, and Heatsink's that are used inside.



The basic physical makeup of a Heatsink is a flat plate of metal, with tall, thin fins protruding from it.

The flat plate absorbs heat from whatever it is placed against, and the tall, thin fins absorb the heat from the plate.
The fins then radiate the heat away.

If there is a fan used along with a Heatsink, (Such as in the Power Supply, or on a Processor), the fan moves air in-between the fins, and around the fins, helping to carry the heat away.

If dirt, dust, hair, etc. is clogged on the fan blades, center hub, and surrounding cage, the cooling capacity drops tremendously.

The fan cannot move the needed amount of air.

To include on the Heatsink/s inside the Power Supply.

The gunk acts like an insulating blanket, causing the Heatsink to retain the heat, not conduct it away.

Heat = Wasted Energy

The Power Supply tries to keep up with the call for power, and eventually cannot, due to hardware components failing inside.

The Power Supply may seem like it is operating okay.

Lights light, fans spin, and it may sound as though the Harddrive inside is operating.

The Power Supply could have a weak Voltage power rail.

Power Supply's are rated in Wattage.
1) ALL the lights use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts.
3) A typical Processor can use anywhere from 51 to 125 Watts.

A bad Power Supply with a weak Voltage power rail, will have enough power to light lights, and maybe spin fans, but not enough power to turn the Processor on.

Harddrive sounds like it is working, because the Platters inside are being spun by the Spindle motor.

There is no Processor operating (The 'Brain') to find the boot sector on the Harddrive.
Platters are spinning but the Arms aren't moving the Read/Write heads across the Platters.

In short the computer is not operating.

No video signal to the monitor, because there is no computer operating to send a video signal.
Bad Power Supply.

Jun 06, 2010 | HP Compaq Presario SR1550NX (PY059AA) PC...

1 Answer

Lenovo j3000 no video is it the mother board

1) Check the monitor cable first.

Use it on another computer, if available. Also try the other monitor, and monitor cable, on your computer. Rule out whether it may be the monitor, or monitor cable.

2) It's a Lenovo 3000 desktop computer, and one of the J series, apparently.
Which one of the J series is it? Just two examples, J110, and J115.

The Lenovo 3000 series desktop computers come with Integrated Graphics.
This means the GPU is soldered to the motherboard.

[GPU = Graphics Processing Unit.

If the GPU is soldered to the motherboard, it is Integrated Graphics, or also known as OnBoard graphics.
ON the motherBOARD.

A GPU can also be soldered to an adapter card.
Graphics adapter card, or usually just referred to as Graphics Card. ]

Let's say the Onboard (Integrated) graphics GPU, is bad on the motherboard.

The Lenovo 3000 series desktop computers, have a PCI Express x16 slot on the motherboard, which is used for a graphics card.

GPU is bad on motherboard? Install a graphics card.
Plug the monitor into the graphics card.

(Don't forget to install the drivers off of the CD that comes with the graphics card, First.
Then install the graphics card)

3) Let's also go back for a moment.

No video on the monitor, (Or also can be said as no graphics on the monitor. No Signal), can also be attributed to the fact, that the computer is Not working.

It may seem as though the computer IS working, however.

Lights may come on. Fans may spin, and it may sound as though the Harddrive is operating.

Problem is the Processor isn't operating.

The power of a Power supply is generally rated in Maximum Wattage.
(Voltage times Amperage = Wattage)

[There is one more power factor to consider, when stating the maximum power rating of a power supply.
The Amperage of the volatge power rails, but we don't need to concern ourselves with this at the moment.]

1) ALL the lights use Less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts

3) A typical Processor can use up to, 51 to 125 Watts.
Depends on what Processor it is.

Using the Lenovo 3000 J115 7387 desktop computer for an example, the standard Processor that comes with it is an AMD Athlon 64 X2 4200+ processor.
(AMD Athlon 64 X2 4200+)

The AMD Athlon 64 X2 4200+ processor, can use up to 89 Watts.


No Processor running, No computer.
No computer, No graphics on the monitor (Video)

[The Processor is the 'Brain' of the computer.
No Brain, there is nothing to find the boot sector on the Harddrive.
The Harddrive spindle motor just spins the Platters inside the Harddrive]

To summerize:
The Power Supply may have a weak Voltage power rail, and not have enough power to turn the Processor on.
Just enough power to run the hardware components, that do not use very much.

You can test the Power Supply, or replace it with a KNOWN to be good Power Supply that is compatible, for a test.

Should you wish to test the Power Supply you will need a multimeter, or a power supply tester.

May 29, 2010 | Lenovo 3000 J Series 1.80G VBE PC Desktop

1 Answer

New graphics card problems with my Presario SR5350F...

Make sure you plug in any auxiliary power cables are are required for the video card.

Is the card used. Has it ever shown signs of life?

Go into windows via integrated graphics and install the latest drivers.

After that I would go into your bios with integrated graphics and turn off intergrated graphics. Look around if there's like a setting that's like switch to PCIx graphics or something. After the restart try to use your monitor though your video card.

Apr 26, 2010 | HP Compaq Presario SR5350F Desktop PC...

1 Answer

Refusal to display

hey bud did you try testing your memory chips popping them out one by one and see if your memory chip is bad its happened to me many times and also if you have had the pc running and swiched in your bios from onboard vga to off since your running an upgraded video card if you take that card out youll need to switch it back in the bios system back to on.other then that might be a motherboard problem ive had that happen to many times.or could be something small like a bad ribbon has cuased that for me before or comments)

Oct 02, 2009 | AOpen PC Desktops

3 Answers

My monitor's power light is on, but there is no display.

Something may be wrong with your video card. Or it could just be loose. Open your CPU, remove your video card (the PCI card where you attach the monitor cable) and reinsert it. Make sure that you remove static electricity from your hands by placing it onto the sides of your CPU casing before handling the video card.

Sep 23, 2008 | PC Desktops

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