I'll order one ASAP. Hope it'll be able to cool well enough.
NEW? Zalman Heatpipe Cooler for nVidia 6800/7800.
Moderators: NeilBlanchard, Ralf Hutter, sthayashi, Lawrence Lee
NEW? Zalman Heatpipe Cooler for nVidia 6800/7800.
According to quietPC Zalman has a optional mounting block for ZM80D that fits on nVidia 6800/7800 series. Not to read about on Zalmans website though. At least i couldn't find anything.
I'll order one ASAP. Hope it'll be able to cool well enough.
I'll order one ASAP. Hope it'll be able to cool well enough.
Yep I just ordered the Zalman ZM80D as well for the XFX 6800.
Take a look at this:
http://www.xbitlabs.com/articles/video/ ... er_10.html
The 6800 isn't too bad, and better than some past generations of cards (5700, 5900's).
I'm expecting it to arrive on Wednesday (two days from now).
I think it'll work. Crossing my fingers.
Take a look at this:
http://www.xbitlabs.com/articles/video/ ... er_10.html
The 6800 isn't too bad, and better than some past generations of cards (5700, 5900's).
I'm expecting it to arrive on Wednesday (two days from now).
I think it'll work. Crossing my fingers.
I'd add a fan...
I've got a Zalman ZM-80 on my FX5950 Ultra, but I decided to play it safe by adding a 92mm Nexus fan to blow across the heatsinks at ~ 6V (using the stock mounting points on the ZM-80 for the screws). While a 6800 and 7800 series GPU is based on 110nm instead of 130nm, it still draws a lot of power and some of that is going to result in waste heat.
On the other hand, at 6V, I can't even hear the fan blowing over the heatsink and it adds a lot of peace of mind.
-Derek
On the other hand, at 6V, I can't even hear the fan blowing over the heatsink and it adds a lot of peace of mind.
-Derek
Just wanted to get back to everyone, the Zalman ZM80D-HP works great on the 6800NU.
I put it on the XFX 6800, liberally applied AS 5, had to move on heat pipe a little further from the card than the other so the power cord would fit.
Temps are great. Room temp is usually 72-74F. Case temps 33-35C, it idles at 55-59C and the highest I"ve seen under load is 73C.
It is completely passive, I'm not using Zalmans option fan. I have a low airflow setup too, one exhaust 120mm fan at 5v, one 120mm nexus on the cpu at 7v, and one 92mm nexus modded to the outside of my PSU at 7v.
I put it on the XFX 6800, liberally applied AS 5, had to move on heat pipe a little further from the card than the other so the power cord would fit.
Temps are great. Room temp is usually 72-74F. Case temps 33-35C, it idles at 55-59C and the highest I"ve seen under load is 73C.
It is completely passive, I'm not using Zalmans option fan. I have a low airflow setup too, one exhaust 120mm fan at 5v, one 120mm nexus on the cpu at 7v, and one 92mm nexus modded to the outside of my PSU at 7v.
I used to have the exact same setup as you, but during long stretches of gaming, my temps were 100C and eventually crashed.Badger wrote:Just wanted to get back to everyone, the Zalman ZM80D-HP works great on the 6800NU.
I put it on the XFX 6800, liberally applied AS 5, had to move on heat pipe a little further from the card than the other so the power cord would fit.
Temps are great. Room temp is usually 72-74F. Case temps 33-35C, it idles at 55-59C and the highest I"ve seen under load is 73C.
It is completely passive, I'm not using Zalmans option fan. I have a low airflow setup too, one exhaust 120mm fan at 5v, one 120mm nexus on the cpu at 7v, and one 92mm nexus modded to the outside of my PSU at 7v.
Ok, i've just done some minor testing.
First it was a poor fit. The holes on the new backside bracket were at least 1mm off center to the backside heatsink. More like 1.5 -2mm. Difficult to get the bolts tightened.
I just had a Panaflo L1A running on 12V on it and ran RTHDRIBL. It immediately got up to +80°C. And nowhere near quiet. I never had those temps with my VF700 w Nexus 80mm fan. And i consider that fan quiter than my Panaflo as well.
So it was money wasted for me, and i'll get my VF700 back until i get my eyes on another GPU cooler
Will probably test another 15mm fan on the VF700. I thought those heatpipes would do the job...
Oh, i have a 6800GT at stock speed.
First it was a poor fit. The holes on the new backside bracket were at least 1mm off center to the backside heatsink. More like 1.5 -2mm. Difficult to get the bolts tightened.
I just had a Panaflo L1A running on 12V on it and ran RTHDRIBL. It immediately got up to +80°C. And nowhere near quiet. I never had those temps with my VF700 w Nexus 80mm fan. And i consider that fan quiter than my Panaflo as well.
So it was money wasted for me, and i'll get my VF700 back until i get my eyes on another GPU cooler
Will probably test another 15mm fan on the VF700. I thought those heatpipes would do the job...Oh, i have a 6800GT at stock speed.
peterson wrote:Ok, i've just done some minor testing.
First it was a poor fit. The holes on the new backside bracket were at least 1mm off center to the backside heatsink. More like 1.5 -2mm. Difficult to get the bolts tightened.
I just had a Panaflo L1A running on 12V on it and ran RTHDRIBL. It immediately got up to +80°C. And nowhere near quiet. I never had those temps with my VF700 w Nexus 80mm fan. And i consider that fan quiter than my Panaflo as well.
So it was money wasted for me, and i'll get my VF700 back until i get my eyes on another GPU cooler
Oh, i have a 6800GT at stock speed.
Are you talking about the ZM80D-HP? I mounted it fine on the 6800nu, I dont know how much different the layout is. I used the longer heatsink base on the core, the instructions said to use that one only for the older nVidia Ti cards, and to use the shorter one for any other card. But the shorter one didnt fit so I used the larger one.
I dunno if that'd help things for you or not.
I'm talking about the ZM80D + the special bracket IK1 that makes it fit my 6800GT. No way i can use the longer heatsink base. I previously have moiunted a ZM80D onto a GF4 Ti4200 so i chose the longere heatsink base first hand, but it was too big.Badger wrote: Are you talking about the ZM80D-HP? I mounted it fine on the 6800nu, I dont know how much different the layout is. I used the longer heatsink base on the core, the instructions said to use that one only for the older nVidia Ti cards, and to use the shorter one for any other card. But the shorter one didnt fit so I used the larger one.
I dunno if that'd help things for you or not.
And there is a plastic backside heatsink base that has faulty offset holes to it.
I doubt the schooner is efficient enough to cool a 6800GT.
I just mounted the ZM80D-HP on my Gainward 7800GT using the ZM80D-IK1 kit. I'm running it without the fan, and with very little airflow in general, but it's a huge success. GPU temps never go above 65 C, even under extreme load.
I had no major problems assembling the thing - I did notice what peterson mentions above, the badly aligned hole on the plastic backplate, but since it's plastic I made it work: It's just a couple of millimeters off, so I managed to force the screw in there.
I was very liberal with the Arctic Silver 5, by the way. This thing really needs great heat transfer into and out of the heat pipes, especially if the majority of your airflow is on the backside of the card.
[Edit:] I forgot to mention the one negative I've seen so far: The "goldfinger" SLI connector at the top of the card is blocked by the front heatsink, so if I ever want to add another 7800GT I'll have to find another cooling solution. Or hack off a good chunk of the heatsink with a jigsaw.
I had no major problems assembling the thing - I did notice what peterson mentions above, the badly aligned hole on the plastic backplate, but since it's plastic I made it work: It's just a couple of millimeters off, so I managed to force the screw in there.
I was very liberal with the Arctic Silver 5, by the way. This thing really needs great heat transfer into and out of the heat pipes, especially if the majority of your airflow is on the backside of the card.
[Edit:] I forgot to mention the one negative I've seen so far: The "goldfinger" SLI connector at the top of the card is blocked by the front heatsink, so if I ever want to add another 7800GT I'll have to find another cooling solution. Or hack off a good chunk of the heatsink with a jigsaw.
Good to hear JonV! 
I can imagine the 65°C on your 7800GT since it's supposed to draw less power. But under extreme load as well?!
Did you also notice that the manual shows 4 holes in the backside heatsink to bolt it onto the plastic backside base plate, but it's actually only 2 holes in the heatsink? That makes an identical copy of the one that comes with the ZM80D that have to have in the first place and hence it's unnecessary to ship it. At least that was my headache.
I can imagine the 65°C on your 7800GT since it's supposed to draw less power. But under extreme load as well?!
Did you also notice that the manual shows 4 holes in the backside heatsink to bolt it onto the plastic backside base plate, but it's actually only 2 holes in the heatsink? That makes an identical copy of the one that comes with the ZM80D that have to have in the first place and hence it's unnecessary to ship it. At least that was my headache.
Yep, exactly the same here. But since there were only 2 holes in the plastic backplate as well, I made it work. You're right that the two backside heatsinks are identical - I just didn't dwell on that little oddity enough to get a headachepeterson wrote:Did you also notice that the manual shows 4 holes in the backside heatsink to bolt it onto the plastic backside base plate, but it's actually only 2 holes in the heatsink? That makes an identical copy of the one that comes with the ZM80D that have to have in the first place and hence it's unnecessary to ship it. At least that was my headache.
But... are you saying your plastic backplate had 4 holes and didn't fit the heatsink at all?I was very pleasantly surprised myself... to clarify: When I say extreme load I mean playing HL2 in high resolution and max quality for hours and hours. Maybe this card is so powerful it's not even breaking a sweat though - is there any standard/accepted method of stress-testing a GPU?peterson wrote:I can imagine the 65°C on your 7800GT since it's supposed to draw less power. But under extreme load as well?!
Actually, i had 6 holes.JonV wrote: But... are you saying your plastic backplate had 4 holes and didn't fit the heatsink at all?
I'm no benchmarking guy so i don't know what applications to use, but i've understood that RTHDRIBL stresses the GPU. Search for it, it's free.
And now i've glued on a 80*15mm Panaflo onto my VF700 so i'll se how it performs. Hopfully as well as the Nexus but it only use 2 slots total.
Don't want to start a new topic, just keeping up in my own
I swapped fan again on my VF700. From a Nexus 80*25mm to a Panaflo 80T-H 80*15mm. At 7V it's as quiet, well, not audible anyway, but it cools 10°C!!! better! Now i don't have to worry about my GPU getting too hot.
It's quieter than stock fan and performs better. I'm happy. But i had to glue it on. The Nexus could be drilled and screwed on.
Thanks to Dorothy for great support on the fan.
I swapped fan again on my VF700. From a Nexus 80*25mm to a Panaflo 80T-H 80*15mm. At 7V it's as quiet, well, not audible anyway, but it cools 10°C!!! better! Now i don't have to worry about my GPU getting too hot.
It's quieter than stock fan and performs better. I'm happy. But i had to glue it on. The Nexus could be drilled and screwed on.
Thanks to Dorothy for great support on the fan.
Thanks. My GPU does hit 80 degrees after a long while of RTHDRIBL at max resolution, so I guess HL2 wasn't pushing it quite to the max. I'm still happy thoughpeterson wrote:I'm no benchmarking guy so i don't know what applications to use, but i've understood that RTHDRIBL stresses the GPU. Search for it, it's free.