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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1612

post #16111 of 38701
Quote:
Originally Posted by pioneerisloud View Post

That block doesn't LOOK like the VRM area is part of the loop to be honest. I could be wrong, that's just how it looks to me by the pictures of it.
You could try setting a fan on top of your VRM area on top of the card, blowing down on the topside of the VRM's. That's dropped my VRM temps a solid 25*C, and mine are actively air cooled with heat sinks and a 120mm fan on the cooler.
I wouldn't worry about them too terribly much, so long as they're under 100*C, and as far down from 100*C as you can get them. 93*C isn't going to hurt anything. They don't throttle the card till 116*C anyway.

http://www.swiftech.com/komodo-hd7900.aspx#tab1
^^ Its description says VRM are part of the loop.

I don't know if a fan would work with my waterblock covering the VRM smile.gif

I'm sure they probably don't get as hot playing BF3 as when I am using Kombuster, but I wanted to overclock the card some more past 1100/1550 and I'm a bit afraid.
 
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post #16112 of 38701
Quote:
Originally Posted by EliteReplay View Post

im pretty sure u dont have a beach like this one biggrin.gif

or like this one do you?

100% Irrelevant kookoo.gif
post #16113 of 38701
Quote:
Originally Posted by CattleCorn View Post

Quote:
Originally Posted by pioneerisloud View Post

That block doesn't LOOK like the VRM area is part of the loop to be honest. I could be wrong, that's just how it looks to me by the pictures of it.
You could try setting a fan on top of your VRM area on top of the card, blowing down on the topside of the VRM's. That's dropped my VRM temps a solid 25*C, and mine are actively air cooled with heat sinks and a 120mm fan on the cooler.
I wouldn't worry about them too terribly much, so long as they're under 100*C, and as far down from 100*C as you can get them. 93*C isn't going to hurt anything. They don't throttle the card till 116*C anyway.

http://www.swiftech.com/komodo-hd7900.aspx#tab1
^^ Its description says VRM are part of the loop.

I don't know if a fan would work with my waterblock covering the VRM smile.gif

I'm sure they probably don't get as hot playing BF3 as when I am using Kombuster, but I wanted to overclock the card some more past 1100/1550 and I'm a bit afraid.

Is the BACK SIDE of your card naked, or is there a backplate covering it? If its naked, that's where I'm talking about....blow a fan DOWN onto the BACK SIDE of the PCB, cooling off the VRM area from on top. Your block covers the bottom of the card. The top of the VRM's can also put off a ton of heat....and just a simple fan blowing on them will help a LOT.
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post #16114 of 38701
Quote:
Originally Posted by pioneerisloud View Post

Is the BACK SIDE of your card naked, or is there a backplate covering it? If its naked, that's where I'm talking about....blow a fan DOWN onto the BACK SIDE of the PCB, cooling off the VRM area from on top. Your block covers the bottom of the card. The top of the VRM's can also put off a ton of heat....and just a simple fan blowing on them will help a LOT.

It has a backplate.
 
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post #16115 of 38701
Quote:
Originally Posted by CattleCorn View Post

Quote:
Originally Posted by pioneerisloud View Post

Is the BACK SIDE of your card naked, or is there a backplate covering it? If its naked, that's where I'm talking about....blow a fan DOWN onto the BACK SIDE of the PCB, cooling off the VRM area from on top. Your block covers the bottom of the card. The top of the VRM's can also put off a ton of heat....and just a simple fan blowing on them will help a LOT.

It has a backplate.

I wonder if the backplate is touching properly then..... Hmmmm

Just for giggles, try just placing a fan on top of your card, blowing straight down onto the backplate, at the rear end of the card, where the VRM's are at. If that helps, then we know its a lack of airflow over your backplate. If it does nothing, then something isn't touching your VRM's properly.
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post #16116 of 38701
Quote:
Originally Posted by pioneerisloud View Post

70*C on the COLDER of the two VRM sensors.....and that's only at 1.07v. I'm not alleging anything, its very clear that your VRM's are naked judging by those temperatures.
For reference.....
My VRM temps are 98*C full load on VRM sensor 1, and 42*C on sensor 2. And my VRM's are actively cooled via heatsinks and large fans. Your VRM sensor 2 shows 70*C, now imagine how hot your VRM sensor 1 really is getting up to with some voltage? I'm at 1.30v though too (1.19v after droop).

OK what do u have to say now?

Heatsink

Throwing caution to the wind, we removed the cooler to display a near perfect contact with the GPU. The TIM was soft and perfectly aligned so I see little reason to break the warranty seal as stated above. The VRM and memory modules have fabric thermal interface material and again are all in place with excellent coverage. The heatsink is a three part design with the main bracket holding the copper baseplate in situ along with the aluminium finned heatsink array welded to the core baseplate.

The cooler also makes use of 'Hyrdocell' cooling which in short makes use of condensation wicks to efficiently transfer heat from the copper baseplate to the aluminium heatsink.



Source http://www.vortez.net/articles_pages/xfx_dd_r7950_review,7.html
post #16117 of 38701
My VRM temps only get that high 93+ in Kombuster. In BF3 it is never above 59 degrees.
 
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post #16118 of 38701
1) That's not full VRM coverage so they're liars right off the bat. You're missing the VRM's up at the front of the card according to that picture.

2) A thermal pad that's touching your plastic shroud =/= proper VRM cooling. The ONLY reason why that same principal works fine on reference cards is because of the blower cooler that sits DIRECTLY on top of them. And at least with a proper reference card, ALL of the VRM's are cooled (including the ones up front).
Quote:
Originally Posted by CattleCorn View Post

My VRM temps only get that high 93+ in Kombuster. In BF3 it is never above 59 degrees.

Then don't worry about it. thumb.gif Mine hit 98*C in Kombuster on Sensor 1. I don't think they ever pass 60-65*C in gaming.
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post #16119 of 38701
Quote:
Originally Posted by pioneerisloud View Post

1) That's not full VRM coverage so they're liars right off the bat. You're missing the VRM's up at the front of the card according to that picture.
2) A thermal pad that's touching your plastic shroud =/= proper VRM cooling. The ONLY reason why that same principal works fine on reference cards is because of the blower cooler that sits DIRECTLY on top of them. And at least with a proper reference card, ALL of the VRM's are cooled (including the ones up front).
Then don't worry about it. thumb.gif Mine hit 98*C in Kombuster on Sensor 1. I don't think they ever pass 60-65*C in gaming.

OK sweet. I'll try upping clocks then, now that I have 12.7 beta drivers and AB 2.2.1 installed.
 
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post #16120 of 38701
Quote:
Originally Posted by pioneerisloud View Post

1) That's not full VRM coverage so they're liars right off the bat. You're missing the VRM's up at the front of the card according to that picture.
2) A thermal pad that's touching your plastic shroud =/= proper VRM cooling. The ONLY reason why that same principal works fine on reference cards is because of the blower cooler that sits DIRECTLY on top of them. And at least with a proper reference card, ALL of the VRM's are cooled (including the ones up front).
Then don't worry about it. thumb.gif Mine hit 98*C in Kombuster on Sensor 1. I don't think they ever pass 60-65*C in gaming.


so this website are liars too?


With the cooler removed, we can see the copper plate for GPU cooling and thermal pads for the memory and VRMs. As is sadly often the case, way too much thermal compound was used during the assembly of this card.

http://benchmarkreviews.com/images/reviews/video_cards/FX-795A-TDBC/xfx_r7950_black_edition_cooler.jpg

source http://benchmarkreviews.com/index.php?option=com_content&task=view&id=867&Itemid=72&limit=1&limitstart=3

do u need me to keep going?
Edit the VRMs in the front are covered as well, so u are just a XFX hater... thats all
Edited by EliteReplay - 9/23/12 at 10:09pm
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