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Compaq Presario SR1750NX wouldnt come on, installed dynex 400 watt atx power supply now it comes on & fan runs but monitor is still blank. Installed ATI RADEON 7000 GRAPHICS CARD, still nothing, the monitor works on other computer

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Hi,
After adding new graphics card monitor display will not work with motherboard display connector.
So, connect your monitor VGA cable with your graphics card display port.

Thanks for using FixYa.

Posted on May 23, 2011

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Posted on Jan 02, 2017

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I have the dynex 400 watt atx power supply,connector do I use my sata connector.


They try to make them "idiot proof." Only the correct one should fit in the power receptacle on the dvd/cd player.

Try the different ones and don't force anything...

Mar 09, 2014 | Dynex 400-Watt ATX CPU Power Supply

1 Answer

Installed dynex power supply on pc and now no signal to moniter


if computer powers up I would suggest looking over your work again with the video card. I would bet loose power cable to video card

Mar 16, 2013 | Dynex 400-Watt ATX CPU Power Supply

1 Answer

When I turn it on monitor reads vga no input and the power is on, the fan is still running.


Bad Power Supply. Weak voltage power rail.

Has enough power to light LED lights, and maybe spin fans, but not enough to turn the Processor on.

1) ALL of the LED lights on at once use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts.

3) A typical Processor uses 51 to 125 Watts. Depends on what Processor it is.

The Compaq Presario SR2013WM desktop computer, comes with an AMD Athlon 64 3800+ processor, that fits in a Socket AM2.

1) http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00777760&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&lang=en&product=3300335


Can use up to 62 Watts.

2) http://en.wikipedia.org/wiki/List_of_AMD_Athlon_64_microprocessors#.22Orleans.22_.28F2_.26_F3.2C_90_nm.29

No Processor operating, no computer.
No computer operating, No Signal to the monitor. (No video signal, or also known as No VGA Signal)

The Power Supply used is just one of the common ATX form factor power supply's.
Used in over 80 percent of PC's out there, and readily available.
(ATX size of the power supply case, is approximately 5-1/2 inches Long, 3-1/2 inches Tall, and 6 inches Wide)

It is 250 Watt, and a generic model. Probably made by Bestec, Delta, or HiPro.
(You can use a larger wattage Power Supply with NO problems.
A computer ONLY uses the power it needs, and NO more)

A) The ATX main power cable is a 24-pin ATX main power cable. All of the new power supply's have an ATX main power cable, where the connector can be used as a 20-pin, or 24-pin.

B) Uses a 4-pin ATX +12 Volt power cable.

C) Past the two power cables above, just make sure the Power Supply has a SATA power cable, (For the SATA harddrive), a Floppy Drive power cable, (Used for the Card Reader), and enough 4-pin standard Peripheral power cables.
(Misnomered as 'Molex')


3) Typical 24-pin ATX main power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24

4) Typical 4-pin ATX +12 Volt power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

5) Typical SATA power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#sata

IF, the SATA harddrive has a provision for using a 4-pin standard Peripheral power cable, AND a SATA power cable, ONLY USE THE SATA POWER CABLE.

If you use both you will burn up the SATA harddrive.


6) Typical 4-pin standard Peripheral power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#peripheral


Have questions regarding the above, or need recommendations on a Power Supply, please post in a Comment.
Regards,
joecoolvette

Nov 22, 2010 | HP Compaq Presario SR2013WM (RE468AA#ABA)...

2 Answers

I need a manual or product number for power supply power supply order #


No you don't. If you think the power supply is bad, then unplug it, unscrew it, and take it to a discount place like Fry's to simply match it. Compaq does not make its own power supplies, so they use generic ones, like everyone else does. The only thing you have to choose is how many watts you need. The original may have been rated too small if it went bad, and you many want one with more power, like 500 watts.

Jan 17, 2010 | Compaq Presario SR1120NX 2.66GHZ Tower w/...

2 Answers

Old power supply no good. bought this dynex 400 watt atx cpu power supply and need to know how to connect wires as there are some plugs that can go in multiple spots.


as long as you have the 20 or 24 plug in and the 4pin square plug in plus the hard drive dvd floppy fans i donot no your motherboard or graphic card so i cannot say anymore only next time write down your conections before removing power supply or get manual for your pc

Jul 30, 2009 | Dynex 400-Watt ATX CPU Power Supply

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