Cooling 6800 GT

Enigma422 · Jul 30, 2004

Wasn't sure if this should go in this section or cooling, but I was just wondering what you guys are using to cool your 6800 GT. Right now I'm debating whether I should spend the money on a DD 6800 waterblock or save some money get the adapter for the 6800 GT from Swiftech and use my old MCW50 waterblock with some Tweakmonster BGA heatsinks. I'm concerned about the size of the Tweakmonster heatsinks because their pretty small and am wondering if it can effectively cool the memory.

Lejend · Jul 30, 2004

I think you may get more reply's if you post this in the water cooling forum.

Xception · Jul 31, 2004

Stock cooler on my PNY 6800 shows 53ºc idle and 75ºc full load running rtdribl @ 410/1170. I've heard good things about the silencer4 and will get one of those when it comes out. Man these cards are sooooo nice.

fafnir · Jul 31, 2004

standard ram sinks (the bigger ones, needs more fins than "tweakmonster BGA") are fine

which does not mean the tweakmonster BGA's are fine

i'm using zalman sinks are they're alright, looks a lot like the stock BGF ultra, see the attached picture below

read this: http://www.ocforums.com/showthread.php?t=316869

Big Lar · Jul 31, 2004

Enigma422 said:
Wasn't sure if this should go in this section or cooling, but I was just wondering what you guys are using to cool your 6800 GT. Right now I'm debating whether I should spend the money on a DD 6800 waterblock or save some money get the adapter for the 6800 GT from Swiftech and use my old MCW50 waterblock with some Tweakmonster BGA heatsinks. I'm concerned about the size of the Tweakmonster heatsinks because their pretty small and am wondering if it can effectively cool the memory.

I got the adapter for my MCW50, and have it on my Evga 6800GT, I use chilled water tho,( Aquarium chiller with probe to res, run off a digital controller), and I keep my water temp at 51 to 54f. I run the water to the cpu, then gpu, then Northbridge, and it works great. Temps on vid are 33c core/ 36 ambient while running rthdribl. I have copper ramsinks on it as well. This is at 420/1140. So I guess I would recommend the swiftech on it.

Enigma422 · Jul 31, 2004

fafnir said:
standard ram sinks (the bigger ones, needs more fins than "tweakmonster BGA") are fine

which does not mean the tweakmonster BGA's are fine

i'm using zalman sinks are they're alright, looks a lot like the stock BGF ultra, see the attached picture below

fafnir;

So you're saying that the Tweakmonster BGA's are not good? If they aren't then which ones should I purchase to cool my memory? I just placed an order for them, but since this is a weekend they have not shipped yet so I think I still have time to cancel the order. Thanks.

Big Lar · Jul 31, 2004

I have these> http://2cooltek.safeshopper.com/67/428.htm?249 on mine, they could have been a bit wider, but work very well none the less.

Huigie · Jul 31, 2004

You don't have to cool the memory on the 6800 at all, as it doesn't even get hot.

Big Lar · Jul 31, 2004

Huigie said:
You don't have to cool the memory on the 6800 at all, as it doesn't even get hot.

I disagree with the above statement, my "Ambient" temp,( memory), runs at 28c on my machine, but goes up to 33 to 34c while under full load, so IMHO, yes, 1 does need ramsinks on the ram.

Huigie · Jul 31, 2004

And how much heat do you think DDR3 can handle?

Enigma422 · Jul 31, 2004

Did a Google search for anyone using the TweakMonster BGA RAMsinks on a 6800GT/Ultra card and I found one person using it at the FutureMark Forums.

I guess I could repharse my question to be more specific, so has anyone here tried using the these particular RAMsinks with their 6800GT or Ultra card. Thanks.

fafnir · Jul 31, 2004

no, get HUGE ram sinks, not those (think surface area here)

Huigie is right though, they don't get hot (look at the radeon x800, same ram, same voltage, no sinks), but ram sinks are still needed, its like saying cars don't need an airbag

they don't need it to run, and they proally don't save a lot of people if they crash,

but it does make a lot of people FEEL better to know that they're there

even if they don't help at all

_

Enigma422 · Aug 1, 2004

Thanks for all your replies, so if not the TweakMonster RAMsinks, then what do people think of these or these.

fafnir · Aug 1, 2004

the vantecs are bad, they've got a THICK base

the ocz's are better, though they're also a bit on the small side

though much better than the "tweakmonsters"

you could proally just use your original ram sink before you find suitable new ones, as it is seperate

look for ram sinks that are 2cm x2cm, pure copper, thin base, and also have no less than 10 fins or 30 poles or rods, which every design it is

though alluminum for this is just as good, wouldn't show much

fafnir · Aug 1, 2004

i've got something like this (see attached image)

its 21x15x13mm and costs 25cents for 4 of em'

but thats because of the country: http://www.waifong.com/index.php?main_page=product_info&cPath=30&products_id=249

Enigma422 · Aug 1, 2004

Alright, what about these Thermaltake RAMsinks. I have a pair laying around the apartment that I was thinking of taking a Dremmel to.

fafnir · Aug 1, 2004

they're good, though i've had a pair before and:

1. you need to lap them flat, they're not flat (the base)

2. i don't think they're big enough to cover all 8 bga's when cut up, you might wanna simply go and cut up a cheap heatsink instead

but otherwise they're not bad at all, i bought a pair of those way back from the geforce3 era for my geforce3 --> quadro dcc mod before

_

Xception · Aug 1, 2004

Well I changed my mind about the silencer4 since this just came out
http://www.dangerden.com/mall2/more_block2.asp?fmmore=237

Looks like it should take care of the ram cooling as well.

Nandro · Aug 1, 2004

Man that thing is expensive though. I wonder if there is a way to put a pelt under it.

Cooling 6800 GT

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