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video card won't work with 4GB Ram

Posted on 2011-10-07
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Last Modified: 2013-11-08
I have a dell optiplex 320 with 4 gb of ram (2 slots). I got a video card Radeon hd 5450 (has 1gb onboard ram). when I put the video card. than windows xp boots till the login screen, but doesn't show it.

if I use 2 gb ram, then I can see the login screen. the computer also works with 4gb ram without the video card.

is there a fix.
win xp with latest bois on it.
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Question by:fm250
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Expert Comment

by:lockreyt
ID: 36933916
Are you using a 32 bit or 64 bit windows
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Author Comment

by:fm250
ID: 36933991
Yes
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by:fm250
ID: 36933992
I mean 32-bit
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Expert Comment

by:Gary Case
ID: 36934079
A couple of possibilities ...

(1)  You may not have enough power for the video card when you install 4GB of RAM -- the HD 5450 specs show a "minimum 400w power supply" requirement => the Optiplex 320 has either a 305w PSU (mini-tower ... which I presume you have) or a 280w PSU (desktop).

(2)  If power isn't the issue, then you may need to boot to the BIOS and disable the onboard video before you boot to the OS.     The auto-detection may not be working correctly when you have 4GB installed (this could also be due to the inadequate power supply).
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Author Comment

by:fm250
ID: 36934148
garycase,
I have tried 400w power supply, which did not help.
Also there is no other options to change on the bois other than auto or onboard. system has latest bois.

any other suggestions! thanks
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Expert Comment

by:Gary Case
ID: 36934636
If the BIOS is set to auto detect the video, and you're confident it's not a power issue, then you've eliminated the two most likely causes.

Try slowing down the memory by setting an extra cycle in the latency parameters.

Also, are you using the most current BIOS for that system?  (v1.1.12)
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Expert Comment

by:edbedb
ID: 36935855
"I have tried 400w power supply, which did not help."

A low end 400w PS may well not provide any more power than the original one.
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Assisted Solution

by:RobMobility
RobMobility earned 2000 total points
ID: 36948098
Hi,

The PCI Express interface is only 1.0a and the card is 2.1.

Whilst in most cases, this should work, there are documented issues on HD5xxx cards which necessitates a BIOS upgrade.

The PCIe slot in your PC is also only rated at 25 watts although the HD5450 is rated at around 6watts at idle and 19 watts at load so you should be OK.

Could it be that the device is either outputing to DVI/HDMI by default instead of D-Sub or the video resolution it's producing isn't supported?

Before installing the card, try dropping your native resolution to 800 x 600 or something similar and then try again?

Regards,


RobMobility.
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Accepted Solution

by:
fm250 earned 0 total points
ID: 37026450
I have tried the resolution thing. I just won't work! I give up with this card.
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Author Closing Comment

by:fm250
ID: 37052315
this card won't work on this type of computers
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