Gateway computer power light flashes before booting up.

With AIO and laptop models, they are only made to work with one type of video card per the MFG. Below is the only video cards supported on this model of gateway:
ATI Radeon HD 4570 with 512 MB DDR2 Memory
ATI Radeon HD 4670 with 1 GB DDR3 Memory
Without these you will not have any success.

your hp only has a 350 watt power supply, you need at least 400 watt, preferably 450 - 500 watt.

Unclear of your statement. (More like run-on sentence)

Problem heading statement reads,
"trouble with install second video card HD5450 TO eMachines T6532"

Need clarification

The eMachines T6532 Desktop PC uses an MSI MS-7207 motherboard.
Also known as the MSI K8NGM2-L,

http://www.msi.com/product/mb/K8NGM2-FID--IL--L.html

(Click on photo for a better image)


Has one long white PCI Express x16 slot. (Expansion Slot)
Only uses one graphics card at a time, will Not use two.

[Graphics card / Video card. Same/same]

Therefore I surmise you are not referring to adding a Second graphics card, but are referring to;

A) This is the second time you have added a graphics card.

Or,

B) This is the second ATI Radeon HD5450 graphics card.
Had one before. Removed it, and are using a new one.

Or,

C) This is the second time you have added a graphics card.
It is not an ATI Radeon HD5450 like the old one is.

Know this;
1) You can ONLY use the OnBoard (Integrated) graphics,
OR the graphics card.
You CANNOT use both.

When using a graphics card the monitor is plugged into it.
You cannot plug into the onboard graphics of the motherboard, with it installed in the computer.

Said differently;
With the graphics card physically installed in the computer, you cannot just unplug the monitor from the graphics card; and plug it into the OnBoard graphics of the motherboard.

[Also; Computer on, you CANNOT unplug a monitor, and plug it back in.
This = NO ]


2) Driver: Small piece of software that allows the Operating System to communicate with a device.

The device is the graphics card.
The version of Windows operating system was not stated.

Did you install the software from the Installation Disk? (CD/DVD)
Has the drivers on it, and the user interface software.
User interface software for an ATI graphics card, is Catalyst Control Center.

(Just to note; I'm using a Powercolor Radeon HD5450 graphics card, right now.
I'm using dual monitors.

HP 2009M - 20 inch widescreen LCD monitor, and an RCA L26HD31 HDTV as the main monitor. (26 inch HDTV)
They work GREAT! ]

(It is an ATI Radeon HD5450 graphics card just like yours, IF yours has 1GB of graphics memory.

Doesn't matter what graphics card manufacturer, makes that HD5450, it is still an ATI (AMD) design.

Powercolor, VisionTek, Sapphire, Diamond Multimedia, Mickey Mouse, or Goofy. It is still an ATI graphics card )

The ATI Radeon HD5450 graphics card, has to have a MINIMUM power requirement of 350 Watts.
Does your power supply have 350 Watts or more?

If it is the original power supply, the answer is NO.

Back then power supply manufacturers were 'fudging' the true maximum rated wattage.
Why?

Sold more power supplies.

Power supply rated at 250 Watts?
Nope.
More like 60 to 70 percent of that.

Divide 250 by 10.
= 25.
Take that times 6. = 150 Watts (60 percent)
Times 7 = 175 Watts (70 percent)

Would like your opening statements clarified.
Post back in a Comment.

Regards,
joecoolvette

you could be pushing the video card to its max, and/or there might be something wrong with the heatsync fan

does the power supply you bought have a pci express power connector on it to allow the card to receive the correct voltage requirements, as that card is compatible with your system

How did you get your drivers and graphics? Did you install the whole package? What is the Asus model #? How much Ram do you have? I'm going to do a little research but let me know what you have.
Dave

This machine have an IGP video solution, an integrated graphic chip, therefore you can replace it. But you can ad one graphic chard, a very cheap one, if you use this machine only for internet browsing and office activities and light video activities.. You have an PCI Express X 16 slot free on your computers motherboard. But first check the functionality of our computer using some other video card, maybe borrowed from a friend.
I can suggest something like ATI Radeon HD 4350 to HD4650 or ATI Radeon HD 5450 to HD 5570. Those entry level graphic cards have HDMI output also.
You have an old system, maybe is not the IGP the only problem. Don't' get any more powerful card as you have a lesser capable power supplier.
Have a nice day.

Did the computer boot to a monitor before? Is this a new monitor for this computer? The GT5662 came with an ATI Radeon HD2400 PCI-e video card. There is also an onboard VGA port on the back of the computer. The VGA port should be disabled. The ATI Radeon HD2400 PCI-e video card comes with two DVI connectors. With the back of the computer facing you, you would use the one on the right. You would have to have an DVI to VGA adapter to use them unless your monitor has a DVI connector also. Hope this helps. This is what the VGA and DVI connectors look like.

Amazon show a XFX ATI Radeon HD5450 1 GB DDR3 VGA/DVI/HDMI Low Profile PCI-Express Video Card HD545XZCH2

For $34

Amazon com XFX ATI Radeon HD5450 1 GB DDR3 VGA DVI HDMI Low Profile PCI...

eBay shows one USED for $19

XFX ATI Radeon HD 5450 HD 545X ZQH2 HD545XZQH2 778656056176 eBay

GOOD LUCK getting a seller to ship to India! Have a friend in the US buy one and let THEM ship to you!

Anthony

Hi, 
Click here to for your computer product specification.
ATI Radeon HD 2400 Pro is a PCIe and your computer is compatable only for PCI

hope this helps,
Thanks, Prem