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R3-Flex

Monitor receives no Signal after installing new GPU (RX 460)

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Posted · Original PosterOP

i switched my Geforce 9400 GT for Sapphire Raedon RX 460 2GB a few days ago. 

 

installed the new GPU and connected it with DVI-D cable. But monitor receives no signal. GPU fans were spinning.

 

replaced new GPU with old one which uses VGA ; display works.

 

what is going on ?

 

some things to keep in mind are :

 

1) GPU has no external power supply slots , i triple checked.

2) I have a 450 Watt PSU , the GPU needs 400 minimum.

3) The DVI-D Port on my old monitor has not been used for 6 YEARS , i think that it may have been broken by dust/rust.

4) No beeps from the Mobo when i start PC , it just says no display signal.

 

SPECS :

Intel Core 2 Quad Q8300 @ 2.50 GHz

Intel DG43GT

Nvidia Geforce 9400 GT (old gpu)

450 Watt crappy PSU

2 x 2GB DDR2 RAM

Windows 7 64-bit

500GB HDD Samsung.

 

Help !

 

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Get a new computer haha


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Put your old GPU in, run display driver uninstaller (DDU) to uninstall your driver (especially important when going from one brand to another). Turn off your computer, take out the old one put in the RX 460, and try installing your new drivers


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Posted · Original PosterOP
10 hours ago, Cereal5 said:

Put your old GPU in, run display driver uninstaller (DDU) to uninstall your driver (especially important when going from one brand to another). Turn off your computer, take out the old one put in the RX 460, and try installing your new drivers

i installed a fresh Win7 64bit before putting the new GPU in

 

that gpu cost me 2 years of savings , i sometimes think i dont deserve new things , and my backup portable HDD is failing on me.

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Posted (edited) · Original PosterOP
7 minutes ago, Glenwing said:

Did you switch the input on the monitor to DVI?

i think it searches all available inputs when it starts , there is a flashing indicator at the top left which switches between VGA/DVI until it detects a signal. i' havent checked it manually tho. 

Edited by R3-Flex
whoops
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Id say try with other cable , if possible try to connect to a tv with hdmi cable .
 

A bit off topic: don't cheap out on psu if you value your pc :)

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Is this an OEM PC?

Do you have UEFI or Legacy Bios?

Do you have the option of reinstalling OS under UEFI?

 

My friends XPS 8500 will not POST with all the new cards we have tried. So far only Radeon HD series.


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Posted · Original PosterOP
On 11/6/2016 at 1:09 PM, asand1 said:

Is this an OEM PC?

Do you have UEFI or Legacy Bios?

Do you have the option of reinstalling OS under UEFI?

 

My friends XPS 8500 will not POST with all the new cards we have tried. So far only Radeon HD series.

its custom pc , old blue screen BIOS.

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1. your old gt 9400 must have a dvi port, does the monitor work with that?

 

If not, your dvi cable or the dvi on your monitor went... probably...

 

2. can you connect your pc to another monitor/TV maybe borow or carry your pc to friend to try it out or smth?

 

 


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