[DjFonti]

Hello all.

I have recently done a few upgrades on my PC. It is an Acer T180.

I wanted to change the graphics card so I bought a new PSU as the stock on was only 250w.

I got a Corsair CMPSU-400CXUK. I've installed it, along with an additional HDD and it all works fine.

However, when I plug in the new graphics card, a HP Nvidia 1GB GT220, and power on, the GPU fans go full tilt and make quite a noise, but there is no signal to the monitor and no POST....the PC just sits there with the GPU fans whizzing away and HDD/DVD lights flashing on and off.

The motherboard is an Acer EM61SM/EM61PM, on BIOS R01-B4.

My old card is a PCI-Express card (ATI Firegl 5100) and that works fine.

Does anyone have any ideas on what might be wrong and how I could remedy this?

I appreciate any help.

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If your old card works good and with the new one you get no video then i would suspect the new card is defective.

If your card is new and still under warranty then i would take it back and replace it.

[Alzeimer]

If your old card works good and with the new one you get no video then i would suspect the new card is defective.

If your card is new and still under warranty then i would take it back and replace it.

[DjFonti]

Hi and thanks for the reply.

I have tried various things. Booting with only one stick of RAM, disconnecting other peripherals and booting etc and no change. Updated BIOS and also no change.

What I noticed is that Windows does eventually boot after about thirty seconds and you do hear the POST bleep. However, no video is output.

I am going to look to return the card and try a different one.

[phillpower2]

Did you install the drivers for the new card and uninstall the drivers for the ATI Firegl 5100 before trying the new card.

[DjFonti]

I didn't uninstall the drivers for the old card, no. I tried to install the drivers for the new card but as it didn't detect any new hardware (as I hadn't installed it yet) it didn't proceed with the installation.

Maybe there is a problem with the card being PCI 2.0? Perhaps the motherboard PCI-E slot is 1.0, I have heard that sometimes this causes problems....but I don't know the version of the motherboard slot.

Edited by DjFonti, 07 December 2010 - 04:45 PM.

[phillpower2]

I didn't uninstall the drivers for the old card, no. I tried to install the drivers for the new card but as it didn't detect any new hardware (as I hadn't installed it yet) it didn't proceed with the installation.

Save the drivers for the new card on your desktop, uninstall the previous drivers or it may cause a conflict (possibly what has already happened) shut down the system fit the new card and re-boot the computer and that should do it.

Maybe there is a problem with the card being PCI 2.0? Perhaps the motherboard PCI-E slot is 1.0, I have heard that sometimes this causes problems....but I don't know the version of the motherboard slot.

Whilst this can be a problem occasionally I don`t think it is common, I cannot say with a 100% certainty that all modern GFX cards are backwards compatible but someone else may be able to shed some light on it.

[DjFonti]

Many thanks for the replies Phil.

I have since returned the GPU and gone for a lower end model. Having researched it, on that specific card, it is known to have problems with older motherboards (which mine is)....apparently it is a VBIOS issue that can be resolved but is reliant on manufacturers issuing updates. The guy I bought it from said it worked fine when he received it.

My new card, thankfully, works fine....but now I'm having other problems!

Thanks again though.