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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1669

post #16681 of 38740
Well, its not that i'm not happy with this, i'm just confused as why the card would hit the wall so quickly. Also, my vrm temperatures are hitting 105 celcius, is this normal?
post #16682 of 38740
Quote:
Originally Posted by billgates8889 View Post

Well, its not that i'm not happy with this, i'm just confused as why the card would hit the wall so quickly. Also, my vrm temperatures are hitting 105 celcius, is this normal?

The "wall" varies with each piece of silicon, mine happens to be 1200.

Is it a reference design or an AIB special?
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post #16683 of 38740
Its a 7950 on a 7970 PCB. It has a 6+8 pin PCI-e connector. Link -http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1157&lid=1&pid=1551&leg=0
post #16684 of 38740
Quote:
Originally Posted by billgates8889 View Post

Its a 7950 on a 7970 PCB. It has a 6+8 pin PCI-e connector. Link -http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1157&lid=1&pid=1551&leg=0

Bad design for vreg cooling, ref design is the best design.
Except maybe a full coverage wb.
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post #16685 of 38740
Check this thread out for the design and pics of the PCB and cooling. http://hardforum.com/showpost.php?s=f8c1a9862e0edac9fbb02e59d1378fd6&p=1038777638&postcount=12
post #16686 of 38740
Quote:
Originally Posted by billgates8889 View Post

Check this thread out for the design and pics of the PCB and cooling. http://hardforum.com/showpost.php?s=f8c1a9862e0edac9fbb02e59d1378fd6&p=1038777638&postcount=12

Doesn't matter, for vrm cooling it is inferior to the ref design.
The ref design actually has a copper heatpipe for the vrms and the blower is right above it.

I've had plenty of those blow down dual fan coolers, only one has provided a better vrm cooling solution.
The best one I've had was the VF3000, the vrm heatsink was better than the ref design in a single card config, equal in dual card config.
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post #16687 of 38740
Quote:
Originally Posted by grunion View Post

Doesn't matter, for vrm cooling it is inferior to the ref design.
The ref design actually has a copper heatpipe for the vrms and the blower is right above it.
I've had plenty of those blow down dual fan coolers, only one has provided a better vrm cooling solution.
The best one I've had was the VF3000, the vrm heatsink was better than the ref design in a single card config, equal in dual card config.

Thats true almost all ref coolers cool the vrms better, the MSI Radeon HD 7970 Lightning tho has great vrm and core cooling but the card does cost 500usd darkryders vrms running boinc hit like 50-60c he says and the core in the 70s.
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post #16688 of 38740
The VRM temperature I'm getting on load is 105 Celsius. Would this be acceptable for normal 24/7 run?
post #16689 of 38740
Quote:
Originally Posted by billgates8889 View Post

The VRM temperature I'm getting on load is 105 Celsius. Would this be acceptable for normal 24/7 run?

omg, i would say NO.... wow that is high
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post #16690 of 38740
Quote:
Originally Posted by billgates8889 View Post

The VRM temperature I'm getting on load is 105 Celsius. Would this be acceptable for normal 24/7 run?

I'd say no as well. My Lightning only gets to 45C max load with the core at ~64C.
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