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Can any PC whizzkid solve this weird/unbelievable/crazy problem??!!

11 replies
Found 23rd Dec 2009
Ok, so just put a new graphics card in my computer ( Asus Radeon 4350) and now have the following problem which I find utterly baffling

Resolution 800 x 600 - Wireless internet good signal strength = Quick
Increase resolution to 1280 x 800 = Lower Signal Strength - Very slow
Increase to max at 1920 x 1200 = Doesn't even detect any networks - No signal at all!!

What the hell?!!!! How does a graphics card stop my wireless card from picking up wireless networks simply by changing the screens resolution?! Previously used on board graphics at 1920 x 1200 with no problems what so ever. If anyone can help it would be much appreciated, as of this minute I'm just about ready to get a lump hammer and go to town on the piece of fussy junk.

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11 Comments

Are u sure you turned off the onboard graphics in the BIOS ....(usually a change from PCI to AGP setting)....... if not then there may be an IRQ conflict in the BIOS screwing up other devices ...namely your Network card. :thumbsup:

Could it be a lack of power - GFX Card drawing more power away from your network card as you increase the resolution?

Someone wake TonyG up, he'll probably know the answer.

I'm gonna put my money on lack of power as mentioned above.

If you can get your hands on a more powerful PSU, try hooking everything up to that and give it a go. By more powerful, I mean a higher wattage.
Do you know the wattage of your current PSU?

Original Poster

350 watts I believe which I was told would be ok for the card - gone back to the onboard graphics and back working fine - will probs just return the card but still interested in an answer!

>Are u sure you turned off the onboard graphics in the BIOS ....(usually a change from PCI to AGP setting).......

It is not a good idea to do this (nor do you need to).

If you turn your graphics off in the BIOS, then your graphics card fails, you cant get into your BIOS (cos the basic graphics are off) to turn the onboard graphics back on again.

guilbert53;7308858

Are u sure you turned off the onboard graphics in the BIOS ....(usually a … >Are u sure you turned off the onboard graphics in the BIOS ....(usually a change from PCI to AGP setting)....... It is not a good idea to do this (nor do you need to).If you turn your graphics off in the BIOS, then your graphics card fails, you cant get into your BIOS (cos the basic graphics are off) to turn the onboard graphics back on again.



Absolute rubbish ......:roll:

You obviously know NOTHING about PC's .......:roll:

I'm using the HD4350 on a newly built games PC and never had any problems as yet but it's not on the net.
One thing though ,on boot up as it's bringing up the black Windows XP screen its gradually fading into the screen , it's difficult to explain but every 2 seconds the screen gets brighter ,then I get the desktop .It also takes a while to boot up.No problems with the graphics on the games though ,the 512mb seems more than enough.

thesnowman86;7308485

350 watts I believe which I was told would be ok for the card - gone back … 350 watts I believe which I was told would be ok for the card - gone back to the onboard graphics and back working fine - will probs just return the card but still interested in an answer!



its a lack of power for sure, is your PSU delivering true 350Watts prob not, I would recommend and antec PSU 400+Watt. should see you ok again.

Mecoconuts;7308946

Absolute rubbish ......:roll:You obviously know NOTHING about PC's … Absolute rubbish ......:roll:You obviously know NOTHING about PC's .......:roll:



agreed all the PCs I've had must be magic where I always turn off the onboard Gfx

Banned

Mecoconuts;7308151

Are u sure you turned off the onboard graphics in the BIOS ....(usually a … Are u sure you turned off the onboard graphics in the BIOS ....(usually a change from PCI to AGP setting)....... if not then there may be an IRQ conflict in the BIOS screwing up other devices ...namely your Network card. :thumbsup:



Rubbish - if its an IRQ conflict its an either or - it works or it doesn't. There is no "interference" or partial correct working. Is does or it doesn't.

Painkiller;7308192

Could it be a lack of power - GFX Card drawing more power away from your … Could it be a lack of power - GFX Card drawing more power away from your network card as you increase the resolution?Someone wake TonyG up, he'll probably know the answer.



oldmanhouse;7308301

I'm gonna put my money on lack of power as mentioned above.If you can get … I'm gonna put my money on lack of power as mentioned above.If you can get your hands on a more powerful PSU, try hooking everything up to that and give it a go. By more powerful, I mean a higher wattage.Do you know the wattage of your current PSU?



Definitely looking at a power issue I agree - and 350 is not all that much depending on what else is running in there.

thesnowman86;7308485

350 watts I believe which I was told would be ok for the card - gone back … 350 watts I believe which I was told would be ok for the card - gone back to the onboard graphics and back working fine - will probs just return the card but still interested in an answer!



It's gotta be power, or a faulty graphics card putting out interference (doubtful)

guilbert53;7308858

Are u sure you turned off the onboard graphics in the BIOS ....(usually a … >Are u sure you turned off the onboard graphics in the BIOS ....(usually a change from PCI to AGP setting)....... It is not a good idea to do this (nor do you need to).If you turn your graphics off in the BIOS, then your graphics card fails, you cant get into your BIOS (cos the basic graphics are off) to turn the onboard graphics back on again.



Absolute bobbings. Besides, even if you did this and your card did fail, you would just reset the CMOS.

Mecoconuts;7308946

Absolute rubbish ......:roll:You obviously know NOTHING about PC's … Absolute rubbish ......:roll:You obviously know NOTHING about PC's .......:roll:



You are right, but then you also think an IRQ setting could be the issue despite both cards working to some degree.... pot kettle etc.

Alfonse;7310997

agreed all the PCs I've had must be magic where I always turn off the … agreed all the PCs I've had must be magic where I always turn off the onboard Gfx



this.

The obvious bit of information missing is what's providing your wifi connection? If it's a card next to your new graphics card then maybe it's a heat issue, especially if your wifi card is an off-brand one. (low-end video cards can get quite hot as they don't spread the heat around much, especially if they're passive).

Power supply seems unlikely to me, the 4350 is only likely to be using 10-15W at most and most computers ship with PSUs that can easily handle that much extra, especially if they're still fairly new.

Forget the wattage of your power supply, look at the label on the side and find out how much power it provides on the +12v line (e.g. 18A). Sustained/continuous and not peak if there are two listings.
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