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AMD Radeon 6990 Club - Page 264

post #2631 of 4103
Quote:
Originally Posted by Ken1649 View Post
The EK backplates are more for the aesthetics and not to dissipate heat better than the stock one. well, maybe a little better if it is thicker and with better thermal conductive metals.
Incorrect. The 6990 EK backplate is a passive cooling backplate with additional thermals pads placed on the PCB, directly at the opposite side of the VRM locations. If cools the DDR5 chips and the PCB itself. I have them installed and noticed with the stock backplate, the center of the 6990 emits a ton of heat under load. With the EK backplates, its just warm at the middle section.


Edited by ezveedub - 7/13/11 at 9:27pm
     
CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
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Windows 10 64bit Pro Gateway FHX2300 Microsoft Wireless Multimedia V2 PC Power & Cooling Silencer 750 Quad 
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Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
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post #2632 of 4103
Quote:
Originally Posted by ezveedub View Post
Incorrect. The 6990 EK backplate is a passive cooling backplate with additional thermals pads placed on the PCB, directly at the opposite side of the VRM locations. If cools the DDR5 chips and the PCB itself. I have them installed and noticed with the stock backplate, the center of the 6990 emits a ton of heat under load. With the EK backplates, its just warm at the middle section.
What are your VRM temps like under load? I'm wondering if the EK blocks are better for VRM temps.
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post #2633 of 4103
Hey,
I just got my 6990 back from XFX, I switched the OC switch to BIOs 1 and I get 830 in CC.
Nothing I do works I switched it back and forth allot of times and rebooted and still nothing, now I'm too scared to OC thinking it might not get enough power.
Any adivce?
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post #2634 of 4103
I have 2 6990s and when in ccc under the crossfire it only has an option to render either 2 gpu or 3gpu is this correct when i have 4gpus
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post #2635 of 4103
Quote:
Originally Posted by Milfstick View Post
I have 2 6990s and when in ccc under the crossfire it only has an option to render either 2 gpu or 3gpu is this correct when i have 4gpus
In CCC, there should be a drop down box with 4 GPUs showing. There is where you adjust the core and memory speed. One core should have the monitor name showing also.
     
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Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
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G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
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EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
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CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
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post #2636 of 4103
Quote:
Originally Posted by ezveedub View Post
Incorrect. The 6990 EK backplate is a passive cooling backplate with additional thermals pads placed on the PCB, directly at the opposite side of the VRM locations. If cools the DDR5 chips and the PCB itself. I have them installed and noticed with the stock backplate, the center of the 6990 emits a ton of heat under load. With the EK backplates, its just warm at the middle section.

Ah thanks. I might get them to improve the temps.

Quote:
Originally Posted by jonnyquest View Post
Hey,
I just got my 6990 back from XFX, I switched the OC switch to BIOs 1 and I get 830 in CC.
Nothing I do works I switched it back and forth allot of times and rebooted and still nothing, now I'm too scared to OC thinking it might not get enough power.
Any adivce?
Jonny, set 'Restore Factory Default' in CCC drop down menu. Also 'Reset' MSI Afterburner if you have them run in the background, because it will re-apply your previous settings on re-boot. Reset everything to default then re-boot, you should be fine with the new cards

Quote:
Originally Posted by Milfstick View Post
I have 2 6990s and when in ccc under the crossfire it only has an option to render either 2 gpu or 3gpu is this correct when i have 4gpus
For 2 6990s, there is only one option to enable or disable crossfire. What Catalyst version you are using?
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2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
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120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
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2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
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120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
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post #2637 of 4103
Quote:
Originally Posted by catcherintherye View Post
What are your VRM temps like under load? I'm wondering if the EK blocks are better for VRM temps.
I'll have to check again later, but I'm sure it was no where near 80C. More in the 60C range if I remember correctly. I'll test it tomorrow when I home.

Also, I'm not sure if the 6990 backplate works with the Koolance block. EK uses screws and washers to mount the GPU section, while Koolance uses the stock spring plate and screws. I'm not sure if this will clear under the EK backplate. Also, the backplate come with more screws that replaces the screws EK uses for the waterblock with longer versions. They are really made to work together.
Edited by ezveedub - 7/13/11 at 10:09pm
     
CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
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Windows 10 64bit Pro Gateway FHX2300 Microsoft Wireless Multimedia V2 PC Power & Cooling Silencer 750 Quad 
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CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
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post #2638 of 4103
Quote:
Originally Posted by ezveedub View Post
Incorrect. The 6990 EK backplate is a passive cooling backplate with additional thermals pads placed on the PCB, directly at the opposite side of the VRM locations. If cools the DDR5 chips and the PCB itself. I have them installed and noticed with the stock backplate, the center of the 6990 emits a ton of heat under load. With the EK backplates, its just warm at the middle section.

But I realize that for EK block, you are not indicated to put the thermal pads in the grooves near where the VRMs are (if there is a place to put it by design?) as for Koolance block. Please see pict, pointed by red arrows. Maybe for that reason, EK block compensated the thermal dissipation with the backplate

So using Koolance block, it should take care of the temperature where the EK Backplate is doing the task where it is supposed to be done on the waterblock directly.
Edited by Ken1649 - 7/13/11 at 10:13pm
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2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
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ケンジ
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GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
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post #2639 of 4103
Quote:
Originally Posted by Ken1649 View Post
But I realize that for EK block, you are not indicated to put the thermal pads in the grooves near where the VRMs are (if there is a place to put it by design?) as for Koolance block. Please see pict, pointed by red arrows. Maybe for that reason, EK block compensated the thermal dissipation with the backplate
That recessed section on the Koolance block is not the VRMs. I believe those are inductors.
Edited by ezveedub - 7/13/11 at 10:19pm
     
CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
OSMonitorKeyboardPower
Windows 10 64bit Pro Gateway FHX2300 Microsoft Wireless Multimedia V2 PC Power & Cooling Silencer 750 Quad 
CaseMouseAudio
Cooler Master HAF 932 Microsoft Wireless Optical Creative 5.1 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
OSMonitorKeyboardPower
Windows 10 64bit Pro Gateway FHX2300 Microsoft Wireless Multimedia V2 PC Power & Cooling Silencer 750 Quad 
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Cooler Master HAF 932 Microsoft Wireless Optical Creative 5.1 
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post #2640 of 4103
Quote:
Originally Posted by ezveedub View Post
That recessed section on the Koolance block is not the VRMs. I believe those are chokes.
If you take a good look on both pics, the pic on the EK Backplate is located directly on the opposite side of chokes. Maybe at the same time will provide the function to take care of the VRMs too?

I just want to convince myself that it will be worth it to get 2 EK Backplates other than for aesthetics.

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2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
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ケンジ
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GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
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