Zalman says NB47J Northbridge cooler fits A8N-SLI

[sxr7171]

Originally posted by: Speedo
No comments on my sollution?
http://www.upsweden.com/files/a8n-passive.jpg

On my own system I'm thinking of finding a way to attach the arm holding the fan from the other side (somewhere around the drivebays) instead so there won't be so much occupied space around the slots.

That's pretty cool. The only thing that concerns me is how it blocks so many PCI slots. With a nice 120mm fan like that you could actually put a passive HS on your graphics card too and get excellent results.

I think I need to do something like what you have done. I find right now that my Zalman NB47J gets really hot and there is a heat pocket around the HS. It seems to make my heatpipes pretty warm around the bend even though they are actually cooler closer to the GPU. I know that this is affecting the designed function of the ZM80D since Zalman even tells you not to use the ZM80D if the CPU is under the ZM80D. In my rig the NB is hot enough to almost be a "CPU" under the ZM80D in a sense.

The heatpipes probably are not functioning as they are designed to because of this. Even still I get awesome temps on my 6600GT, because I think just the passive block on the bottom + quiet Zalman fan does a good job.

I am seriously thinking about getting a fan and directing the air on the NB47J as you have done. I really want to mount it somehow on the other side though. Let me know when you have found a solution as I really am thinking about doing this.

 

[Speedo]

Originally posted by: sxr7171
That's pretty cool. The only thing that concerns me is how it blocks so many PCI slots. With a nice 120mm fan like that you could actually put a passive HS on your graphics card too and get excellent results.

Exactly. Actually I disconnected the power plug to the GPU cooler (That X300 runs really cool). The guy I made this sollution for, isn't going to use any additional cards, atleast for now. However, the fan does not block all slots, as it might look like in the pic, and it also depends on how big the cards are. It wouldn't be a prob to fit for example a small NIC under the fan.

However, a much better sollution would be, as we both agree on, to have the fan attached from the other side. Considering the short lenght of the arm, the fan would also probably get closer to the heatsink. I think that how it could be attached depends on the case. Maybe use some holes in the drivebays, or even drill two new ones? The arm is also very easy to bend and modify (as you can see in the pic) so that you can direct the airflow optimally towards the NB47J.

I have ordered the Antec Sonata case. As soon as I get it, I will start trying to figure something out. However, looking at this pic, it looks like it could be a bit tricky to find somewhere to attach the arm, since the drives are turned sideways : http://www.antec.com/images/400/Sonata_opencase.jpg

 

[sxr7171]

Originally posted by: Speedo

Originally posted by: sxr7171
That's pretty cool. The only thing that concerns me is how it blocks so many PCI slots. With a nice 120mm fan like that you could actually put a passive HS on your graphics card too and get excellent results.

Exactly. Actually I disconnected the power plug to the GPU cooler (That X300 runs really cool). The guy I made this sollution for, isn't going to use any additional cards, atleast for now. However, the fan does not block all slots, as it might look like in the pic, and it also depends on how big the cards are. It wouldn't be a prob to fit for example a small NIC under the fan.

However, a much better sollution would be, as we both agree on, to have the fan attached from the other side. Considering the short lenght of the arm, the fan would also probably get closer to the heatsink. I think that how it could be attached depends on the case. Maybe use some holes in the drivebays, or even drill two new ones? The arm is also very easy to bend and modify (as you can see in the pic) so that you can direct the airflow optimally towards the NB47J.

I have ordered the Antec Sonata case. As soon as I get it, I will start trying to figure something out. However, looking at this pic, it looks like it could be a bit tricky to find somewhere to attach the arm, since the drives are turned sideways : http://www.antec.com/images/400/Sonata_opencase.jpg

Actually I have an Antec Superboy with the same drive orientation. I like it that way because it gives you more room behind the drives and allows you to have no wires sticking out. I have a 120mm intake fan just in front of the drives and no wires also helps the airflow in the case. Regardless of the fact that there are drive holes to use there are ways we can exploit this design. One thing we could do is to mount a 120mm fan on the drive bracket just behind the drives (in my case it would be in series with the fan in front of the drives) and even tie it on the drive mount with twist ties. I'd surround the fan border with a silicone vibration dampner and tie the fan tightly to the drive mount.

The downside to this is that it won't blow directly on the NB heatsink but it will move some serious air in the vicinity for sure. The other thing we may not like is the concept of using twist ties, sometimes you just want a solid mount for the satisfaction of having solid mounts. Other than that it will help cool your drives, your video card and any other PCI cards you have along with the NB heatsink.

The other thing to do might be mounting a fan on the sidepanel, but that would ruin my nice clear side panel.

With your X300 which really doesn't need any active cooling from what I've heard, I'd actually try to get rid of the stock cooler and see if there's a way to put something like an NB47J on it. It would be even better with a really slim heatsink with a decent surface area that has your 120mm fan blowing on it. I guess it doesn't matter if you're not worried about GPU temps or overclocking though.

 

[Speedo]

Originally posted by: sxr7171

Actually I have an Antec Superboy with the same drive orientation. I like it that way because it gives you more room behind the drives and allows you to have no wires sticking out. I have a 120mm intake fan just in front of the drives and no wires also helps the airflow in the case. Regardless of the fact that there are drive holes to use there are ways we can exploit this design. One thing we could do is to mount a 120mm fan on the drive bracket just behind the drives (in my case it would be in series with the fan in front of the drives) and even tie it on the drive mount with twist ties. I'd surround the fan border with a silicone vibration dampner and tie the fan tightly to the drive mount.

The downside to this is that it won't blow directly on the NB heatsink but it will move some serious air in the vicinity for sure. The other thing we may not like is the concept of using twist ties, sometimes you just want a solid mount for the satisfaction of having solid mounts. Other than that it will help cool your drives, your video card and any other PCI cards you have along with the NB heatsink.

The other thing to do might be mounting a fan on the sidepanel, but that would ruin my nice clear side panel.

With your X300 which really doesn't need any active cooling from what I've heard, I'd actually try to get rid of the stock cooler and see if there's a way to put something like an NB47J on it. It would be even better with a really slim heatsink with a decent surface area that has your 120mm fan blowing on it. I guess it doesn't matter if you're not worried about GPU temps or overclocking though.

Actually this system was for another guy (with the X300). Even when just unplugging the stock HSF, it seemed to run very cool due to the Zalman next to it. Personally, I will have a Leadtek GF6600GT myself. I haven't decided which cooling sollution to use for it yet. I was thinking about the VF700, but it seems there could be interference with the NB47J.

Also, I'm not sure if I'll use the same Zalman 80mm sollution for cooling the NB, or use a 120mm as you mention. But the Zalman seemed to pull a nice amount of air, even in "slow" mode using the resistor.

If you hold your finger next to your NB, how much air circulation do you have there? I was thinking, since you do have the fan on your GFX and the 120mm in the front of the case...

 

[Chugworth]

Well I put the Zalman heat sink on my mobo. Everything works, but the heat sink gets pretty hot. I guess I'll need to mount a fan over it or something. I see one error I made during installation though. I put one of those little metal holders on the wrong way, and it's dangerously close to that little cheerio-shaped thing wrapped in wire. What happens if the metal touches? Am I in for a fireworks display?

Well it's time to get something to eat. For some reason I'm in the mood for an omelet.

 

[Dutchie]

I used a 40mm Evercool double ball bearing fan to replace the chipset fan.

Instructions for a very nice looking mod.

1.Leave original fan in place, don't remove it.

2. Remove tin covering

3. Take 2 screws of your choice(as long as they fit through the fan holes)

4. Put 1 screw in each corner of the fan when mounting it on.

5. Wallah! Clean up any wires hanging about

note:When screwing in the new fan, it will be a snug fit, and you will see that the heatsink bows out a bit where the screws went in(because of the bigger sized screw).

 

[Dutchie]

Another thing, I can't seem to make a link of what the Mod looks like when completed. If you want a pic of the mod, hit me up at drewnolan82@hotmail.com. I'll send you a pic of it
Happy Modding

-drew

 

[Fatbaggins]

Read all this post with interest...new to this(but not to computers), played about with my system, northbridge fan mental noise.....moved fanmate2 from CU7700 to the northbridge fan, enable Qfan....Cpu Fan still spinning silent and northbridge spinning at 5000 rpm(can reduce to 3000) silent and with temps at 23c......Happily overclock 3500+ to 2.6Ghz v.stable. Really spend loads of time measuring and trying to figure out what I could do to mod under the NV5, and this has got to be the simplest answer.....

 

[Fatbaggins]

Just in case your interested here is a couple of pics

http://uk.pg.photos.yahoo.com/ph/keithb...net.com/detail?.dir=33c2&.dnm=a374.jpg

http://uk.pg.photos.yahoo.com/ph/keithb...net.com/detail?.dir=33c2&.dnm=d3d0.jpg

These were both taken before moving the fanmate, so now that cable runs from behind the Northbridge hidden by first NV5 along the bottom of the case and then up.

 

[Speedo]

I really wonder if it would be possible to have the NV6 and the NB47J... ?

 

[Fatbaggins]

No you cannot use the NB47J with an NV6....even if you modded the fan housing, it would touch the fan. I did try to measure this out, and consider each different angle I could insert the NB47J, but it just was never going to happen. You could get away with a height of about 32mm, but the Zalman Heatsink is 47MM.

 

[Speedo]

What if you cut some fins from the heatsink?

 

[Micha]

Hej Speedo!

Instead of cutting fins from NB47J you may want to try this one:
NB32J

It's only 32mm height...
Good luck!

 

[Fatbaggins]

Micha....thats exactly what I was going to suggest.......that should just about fit under an NV5 or 6, but you will still need to do a bit of modding on the housing of the fan. and I am not entirely confident that the cooling will be suffcient either, guessit depends on how the rest of you rig is cooled and if you will be overclocking.....I still stick by the fanmate on the stock cooler, its quiet running at 5000-6000rpm and I don't seem to have any change in temp, and no problems oc'ed

 

[Speedo]

Thanks for the suggestion, but I'm worried about chipset heat since I'm overclocking. Thought the NB47J could be more effective if I only need to cut the top of some fins, and leave the rest alone. I'm also not that excited by the thought of having to take off the mobo again

 

[Fatbaggins]

You would have to cut off over 15mm, which would in turn reduce its cooling ability to around the same as the NB32, so don't think you will get much gain out of that......

 

[Speedo]

I guess it depends on how many fins that has to be cut?

 

[sharpnsmart]

I just installed a CoolerMaster PAC-P01 heatsink.
It's very much like the Zalman, but it's slightly shorter and has a flat top so it shouldn't interfere with any card.

Here is a picture with it installed and a Leadtek 6600Gt:
http://images2.fotop.net/albums/sharpnsmart/miscellaneous/IMG_4839.jpg

 

[Fatbaggins]

The dimension of that cooler are 37.5mm x 37.5mm x 32mm, so if you are going to use dual cards, and fit either NV4 or NV5 you are still looking at modding the fan unit a bit....32mm is about the max it could take without actually hitting the fan if the casing was cut away.

 

[NightCrawler]

sub

 

[ryanhfx]

Hi everyone. I'm using the A8N-SLI in a Sonta case with only a rear fan. Can I simply replace the buzzy chipset fan with a Zalman NB47J, or would I need to add a front fan to the case to blow air across the heatsink?

(note: not overclocking, using only ATI X300SE video card with passive cooling)

Any help would be greatly appreciated.

 

[imported_caf2461]

Sonata case here. I found the chipset ran very hot to the touch. Installed a vantec stealth front fan to blow accross the chipset. Overclocking 10%. Motherboard temp now runs below 44 C. Very quiet. I'd use a front fan to be safe.

 

[SAngeli]

Hi,
I have an ASUS A8N-SLI Deluxe mbd and wish to replace the N/Bridge fan/heatsink (loude); many people have reported being loude.
This is my computer case http://www.nexustek.nl/breeze.htm Nexustek Breeze, with one large 120mm fan (I replaced with SilenX 56CFM) and a PSU with 120mm fan. So, I assume air flow is quite good.
I wish to install the Zalman ZM-NB47J. I wish to ask few questions, if possible:
My Video Card has an Artic Cooling NV Silencer 6 (Rev. 2) so all the heat generated by the video card is expeleld out.
This to say I would assume no much heat should be inside the case.

1) How hard is to remove the original heatsink off? I am concerned not knowing how much pressure to apply when pulling off the original one. I am concerned that pulling to much I could break or detach something.
Should I be concerned?
2) Any advice.
3) Is the temperature of the chipset going to get worst, better or equal to the origianal system?

Thank you,
Spiro

 

[luky]

1) It is quite easy, just push pin tops (from other side of MB) together and pull them off.
2) no
3) To be hones I didn't even try it with original one. My case (Antec 3000B) has quite godd airflow - 2x120 front and back + PSU and MB temperature sensor reads between 30-38C, but it is not probably the accurate number. when I touch HSF it's worm, but not really hot, I can leave my finger there without problem. I am running on slight overclock of 217Mhz, HTTx5

 

[Fatbaggins]

I'm not 100% about the nv6, but I am pretty sure that you will not fit the zalman under it...you can't under and nv5. I would do some measuring, if you look back through this strand you will see all the measurements that you need to know.