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post #15011 of 38701
Hmm. Just a quick question whether you guys consider it safe to run eh.

Using a reference Sapphire HD7970 with a Arctic Accelero 7970 with the fan module removed and 2 120mm Scythe Slipstream 1600RPM 88CFM fans tied to it.

Clocks are at:
GPU Volts: 1.237v (After vdrop about 1.17-1.18v)
Mem Volts: 1.625v (Stays the same after drop)
GPU Clocks: 1230Mhz
MEM Clocks: 1740Mhz

The things I am concerned about, again, still, are the VRM temps and whether the VRAM is capable of running 1.625v (with heatsinks) for long periods of time.

Temps:
GPU:
BF3: 55-58c.
Sleeping Dogs: 64-66c.
OCCT: (Heats up more then Furmark will ever do tbh): 74c.
VRM's:
BF3: VRM1: 85c and VRM2: 65c.
Sleeping Dogs: VRM1: 109c VRM2: 80c.
OCCT: (Ridiculous amount of amps / watts pulled, as in almost 280 amps on 1.14v after drop being ~320w of consumption) VRM1: 126c VRM2: 94c.

Can I run the VRM's at like, 110-115c on hot days in games like Sleeping Dogs / Crysis 3 and what not more to come?
Many sources say the VRM's are rated to 125c but still, 109c (this is max temp recorded by GPU-Z eh, stable temps are at about 95-98c) seems liek A LOT.
I know Arctics VRM cooling is very crappy and I plan to buy a Swiftech HD7970-HS cooling block and mod and grind it so that the Accelero fits over it but I wanna know if it's safe to keep running untill I modded that block in a way that it fits.

I don't really wanna clock back cause Sleeping Dogs @ all max with 2x EQ AAA and FXAA is quite intensive and can go as low as 45 FPS in some areas even with these clocks.
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post #15012 of 38701
VRM temps above 100c are not good. As you have said get the watercooling done or get better VRM cooling heatsinks. Till then lower the clocks so that VRM stays below 100c.
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post #15013 of 38701
Quote:
Originally Posted by Imprezzion View Post

Hmm. Just a quick question whether you guys consider it safe to run eh.
Using a reference Sapphire HD7970 with a Arctic Accelero 7970 with the fan module removed and 2 120mm Scythe Slipstream 1600RPM 88CFM fans tied to it.
Clocks are at:
GPU Volts: 1.237v (After vdrop about 1.17-1.18v)
Mem Volts: 1.625v (Stays the same after drop)
GPU Clocks: 1230Mhz
MEM Clocks: 1740Mhz
The things I am concerned about, again, still, are the VRM temps and whether the VRAM is capable of running 1.625v (with heatsinks) for long periods of time.
Temps:
GPU:
BF3: 55-58c.
Sleeping Dogs: 64-66c.
OCCT: (Heats up more then Furmark will ever do tbh): 74c.
VRM's:
BF3: VRM1: 85c and VRM2: 65c.
Sleeping Dogs: VRM1: 109c VRM2: 80c.
OCCT: (Ridiculous amount of amps / watts pulled, as in almost 280 amps on 1.14v after drop being ~320w of consumption) VRM1: 126c VRM2: 94c.
Can I run the VRM's at like, 110-115c on hot days in games like Sleeping Dogs / Crysis 3 and what not more to come?
Many sources say the VRM's are rated to 125c but still, 109c (this is max temp recorded by GPU-Z eh, stable temps are at about 95-98c) seems liek A LOT.
I know Arctics VRM cooling is very crappy and I plan to buy a Swiftech HD7970-HS cooling block and mod and grind it so that the Accelero fits over it but I wanna know if it's safe to keep running untill I modded that block in a way that it fits.
I don't really wanna clock back cause Sleeping Dogs @ all max with 2x EQ AAA and FXAA is quite intensive and can go as low as 45 FPS in some areas even with these clocks.

your VRM temps are way to high. you need to keep them under 100c at all times. As Raghu said water cool or get some better VRM cooling. I see at one point you got up to 126c on VRM 1 thats crazy

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post #15014 of 38701
I'll back down to 1150Mhz with 1.12v then. That stays at 85c orso.
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post #15015 of 38701
How much of a bottleneck would i be at, if i decided to upgrade to a 7950 with a Phenom ii 550?
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post #15016 of 38701
Quote:
Originally Posted by Davidsen View Post

How much of a bottleneck would i be at, if i decided to upgrade to a 7950 with a Phenom ii 550?

I'd say quite a bit.. It'll be better then your 5750 though. You might want to try unlocking the Phenom II 550 though, if you can get a tri/quad the bottleneck would be less thumb.gif
Otherwise I'd suggest upgrading to a 955BE or a 960t thumb.gif

EDIT: Can't seem to get VRM temps to read properly.. GPU-Z and HWID (or whatever the program is in the OP) tells me 24c idle and under load? rolleyes.gif
 
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post #15017 of 38701
Hi...I´ll planing buy a HD 7950 for my pc.

WHICH SHOULD I CHOOSE?

There are my favourites...I want the less noise posible and cooling efficency / overclock.

The cards are about same price in locar sellers.

7950 POWERCOLOR PCS+
7950 HIS ICEQ TURBO
7950 GIGABYTE WINDFORCE 3
7950 SAPPHIRE OC EDITION

It´s very difficult to me choose one, please help me...Which is the best/quietest and cooler of four?

Sorry for my english!!! and thanks.
post #15018 of 38701
Quote:
Originally Posted by Jabba1977 View Post

Hi...I´ll planing buy a HD 7950 for my pc.
WHICH SHOULD I CHOOSE?
There are my favourites...I want the less noise posible and cooling efficency / overclock.
The cards are about same price in locar sellers.
7950 POWERCOLOR PCS+
7950 HIS ICEQ TURBO
7950 GIGABYTE WINDFORCE 3
7950 SAPPHIRE OC EDITION

It´s very difficult to me choose one, please help me...Which is the best/quietest and cooler of four?
Sorry for my english!!! and thanks.

 

I prefer Sapphire over any of those IMO. Sapphire is one of the best company's around plus it has the highest clocks. Stay away from the MSi Twin Frozr IIi cards. Went through x2 of these within 3 weeks. Not worth the trouble


Edited by 4LC4PON3 - 8/26/12 at 6:28am
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post #15019 of 38701
Quote:
Originally Posted by Jabba1977 View Post

Hi...I´ll planing buy a HD 7950 for my pc.
WHICH SHOULD I CHOOSE?
There are my favourites...I want the less noise posible and cooling efficency / overclock.
The cards are about same price in locar sellers.
7950 POWERCOLOR PCS+
7950 HIS ICEQ TURBO
7950 GIGABYTE WINDFORCE 3
7950 SAPPHIRE OC EDITION

It´s very difficult to me choose one, please help me...Which is the best/quietest and cooler of four?
Sorry for my english!!! and thanks.

I've never used Powercolor, but the I own the HIS and it's rather good. I've got mine running at 1200/1250MHz and it never passes 65c in games. The cooler does get a bit loud though. Those Gigabyte coolers are quite good from what I hear, I don't know how good the 7950 one is though. The Sapphire is about the same sort of performance as the HIS I think. Maybe a bit quieter and a bit hotter.

I think the Windforce 3 would be the best bet for silence/cooling performance. Don't quote me on that though smile.gif
EDIT: Yes, just looking at a review the Windforce 3 beats the MSI Twinfrozr cooler on heat dissapation and by noise. It would probably be one of the better choices if you have a decent case to handle it.
 
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post #15020 of 38701
Quote:
Originally Posted by Matt-Matt View Post

I've never used Powercolor, but the I own the HIS and it's rather good. I've got mine running at 1200/1250MHz and it never passes 65c in games. The cooler does get a bit loud though. Those Gigabyte coolers are quite good from what I hear, I don't know how good the 7950 one is though. The Sapphire is about the same sort of performance as the HIS I think. Maybe a bit quieter and a bit hotter.
I think the Windforce 3 would be the best bet for silence/cooling performance. Don't quote me on that though smile.gif

HIS Iceq is the best cooler. Your clocks are on the high end of voltage overclocks. So i guess the fan needs to run at high speeds to cool the chip.

http://www.tomshardware.com/reviews/radeon-hd-7950-review-benchmark,3207-14.html
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