Video Card + Mobo probs.

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I've made a couple threads over the last year about my mobo's loud-ass NorthBridge fan and how I was going to replace the mobo sometime.

Well, over the last month or so, the loud NB fan on my mobo started to be less and less annoying and was replaced with a weirder noise that sounds like something's bumping into the blades. The loud annoying hum is now completely gone, but this other sound is here. At first this new sound only was during the first 5-10 seconds of startup, but now it's pretty much constant.

I opened my comp up to take a look. My NorthBridge fan is completely stopped (it must've stopped like a month ago - no temperature differences or problems). The sound is coming from my gfx card's fan which is covered by a little screen so no cord can bump into the blades. Because of the angle, I can't see the fan in motion at all, but it must be running decently or my gfx card would be overheating pretty fast in games.

I've had zero problems with computer stability or temperature due to these crazy fans. My case is pretty well ventilated. I have 2 other fans besides the PSU's dual fan and even a little vent that funnels the air that's being pushed away from my processor outside the case. I've had no problems whatsoever.

But from the sounds of things, the fan on my 6800GT is probably dying. I recorded the sound of the fan on my mp3 player as a .wav file...but I don't know where to upload it so you guys can hear it.

Anyways, I need a budget solution to this problem. For now I'm content with sticking with this mobo even though that fan is dead...as long as there's no other problems. I don't have the $$$ to spend on a GOOD graphics card if this thing dies. I just planned and paid for a trip to NY this August...so all my discretionary spending $$$ is gone for the time being.

I'm just hoping to:

(a). Find a way to fix my gfx card fan (I still need a place to upload this sound for public hearing).
(b). Find a cheap replacement for it that will be a slight/passable upgrade (I don't see the 6800GT PCI-E being sold anymore on newegg).
(c). Find a new mobo that will support my current components and be highly upgradable (dual core, vista compatible, etc) for the future.

Any of the above things would be fine by me.
 
What brand is the 6800GT? Could it still be under warranty?
Thought about buying a replacement GPU cooler?

Not sure why you need a new motherboard with your current setup if the northbridge is not overheating. They normally don't give out much heat and can get away with passive cooling. If the cooler isn't doing well with the fan stopped then you could replace it with something like this small zalman heatsink for $5.
 
*Sigh*

Nothing annoys me more than to have a long post typed out, listing out step-by-step info, only to hit the Submit button and then the damn browser crashes. I swear, FF sure has been a bit touchy lately. Crashes quite often it seems...

Anyways..

Like Asus said, you can buy a Heatsink for your mobo's NB chip. They can be as little as $5 & will give you a basic aluminum heatsink that you apply direct to the NB chip and is held on with a square of thermal tape thats included with the heatsink. You can also spend a little more and get a setup that is made of copper and has a fan built in. Depending on the amount of heat your PC is subjected to & the type of mobo you have, a basic aluminum fan-less heatsink *should* work just fine, since they don't normally generate a lot of heat. The choice is of course yours.

North Bridge Heatsink & Fan Coolers
http://www.newegg.com/Product/Product.aspx?Item=N82E16835108072
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103155

North Bridge Heatsinks
http://www.newegg.com/Product/Product.aspx?Item=N82E16835118002
http://www.newegg.com/Product/Product.aspx?Item=N82E16835118214

North Bridge Fans
http://www.newegg.com/Product/Product.aspx?Item=N82E16835185039

As for your video card, there are a lot of different solutions in regards to the fan thats on it. You can buy an aftermarket video card cooler that replaces the entire heatsink & fan assembly thats currently on your video card that came from the factory. If your card is still under warranty, I would advise you contact the maker before you go replacing anything, because doing so might very well void the cards warranty. If the card is out of warranty, then alls a go.

Video Card Coolers
http://www.newegg.com/Product/Product.aspx?Item=N82E16835118001
http://www.newegg.com/Product/Product.aspx?Item=N82E16835118117

Silent Video Card Coolers
http://www.newegg.com/Product/Product.aspx?Item=N82E16835109135

Avoid the below cooler. It works better than the stock cooler, but not all that much better & NOT for the price. I currently have it installed on my e-VGA 6800 Ultra. The heatsink tines (fins) also EASILY get clogged with dust because they are so fine & close together and so I have to clean it often.
http://www.newegg.com/Product/Product.aspx?Item=N82E16835106090

How much do you have to spend on a motherboard. Please list me the specs of your PC so I can make sure of compatability.

Hope the above helps. After losing the original post, I wasn't in the mood to re-type a lot out.

-MRG
 
I have a Leadtek 6800GT PCI-E

The problem with replacing the NB fan is it's positioned RIGHT under my vid card. The fan itself is ~4mm tall and there's about 1.5mm of clearance...so that pretty much eliminates ANY kind of replacement.

The reason I was saying I might buy a new motherboard is just to prepare to slowly upgrade my system. I suppose if I continue to have zero problems with the NB overheating then I could just stick with this one for a while.

Thanks for the links on the vid card coolers. I'll probably get one of those once my fan goes bad. BTW, what temps should most cards idle and be stressed to? Mine hangs around 73-75 C when idle and get's pretty high when I stress it (not to the red, but almost).
 
I would think most range from 60-80C.

While CPU's burn at about 80-85C (depending on model), GPUs can go up to 110-115C. I know Nvidia has their 'critical' temperature set to something like 115C in the driver settings with a checkbox if you want it to warn you.
 
I have a Leadtek 6800GT PCI-E

The problem with replacing the NB fan is it's positioned RIGHT under my vid card. The fan itself is ~4mm tall and there's about 1.5mm of clearance...so that pretty much eliminates ANY kind of replacement.

The reason I was saying I might buy a new motherboard is just to prepare to slowly upgrade my system. I suppose if I continue to have zero problems with the NB overheating then I could just stick with this one for a while.

Thanks for the links on the vid card coolers. I'll probably get one of those once my fan goes bad. BTW, what temps should most cards idle and be stressed to? Mine hangs around 73-75 C when idle and get's pretty high when I stress it (not to the red, but almost).

The 6xxx series of cards were known for running extremely hot. Even so, those temps you listed are much too high if it's at idle. My 6800 Ultra hardly ever gets that hot, even under a full load after hours of gaming. For example, my PC has been on all night & so at idle, my temps right now are @ exactly 50c.

Do you have any case fans? Have you given any thought to removing the HS&F from your video card and applying new thermal paste, (Of course you would want to FULLY remove the old paste/tape first) such as Artic Silver 5? A good quality paste can also do wonders for your temps. Don't use that white paste crap that comes with most stock setups. It's junk.

As for the NB fan, you can easily & cheaply get ones that are very thin.

-MRG
 
I have 2 extra case fans.

I don't know how to even remove the Leadtek HS&F from my vid card.
 
I have 2 extra case fans.

I don't know how to even remove the Leadtek HS&F from my vid card.

Please link me the exact video card that you have. I'll look into it and then tell you how to remove the HS&F assembly.

Is the inside of your PC dust free?

-MRG
 
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