- Feb 23, 2013
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So I was running my 6990 on the default setting because I was bottle necking at my CPU anyway. Now that my i5-3570k is in the mail, I am planning on trying the boost mode when I hook up my new MB & CPU.
I have read that the increased heat from this mode could be an issue? Does anyone have experience with this?
I'm freaking out a little bit about it, and I'm already looking at replacing my 120 & 140mm case fans with Noctua's in order to compensate.
Just as a foot note, considering it will up my wattage consumption. Is it crazy for me to think a 1000 watt psu will run my new rig properly?
New Rig Specs...
CPU: Intel 3570K 3.4 ghz (3.8 turbo)
VIDEO CARD : HIS Radeon HD 6990 4GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready
MOTHERBOARD : Asus P8Z77-V LK LGA 1155 Intel Z77 w/ UEFI BIOS
MEMORY: 16GB (8GBx2)
HDD : Single Hard Drive 300GB (Not Solid State)
MONITOR: 27 LCD Samsung (MAX RESOLUTION = 1920x1080)
OS: Microsoft Windows 7 Home Premium 64bit
POWER SUPPLY: 1000 WATT PSU
CHASIS: Thermaltake Xaser VI VG4000BNSB Black Full Tower
For information on the boost mode I'm referring to, I have posted a part of the toms hardware review on the card.
Taken from Tom's hardware review...
"As if to prove it engineered this card beyond what the second-gen PCI Express spec officially supports, AMD takes the dual-BIOS concept introduced on its single-GPU Radeon HD 6900-series cards and puts it to some use. By default, the Radeon HD 6990 runs an 830 MHz core clock at 1.12 V. Flip the switch next to the CrossFire connector, though, and both settings jump to 880 MHz and 1.175 V, respectively, upping the power ceiling to 450 W (clearly, those eight-pin connectors aren't limited to 150 W).
Now, this still isnt the same as a Radeon HD 6970 since the memory clock remains at 1250 MHz in both cases. But AMD does facilitate clocks of up to 1200 MHz core and 1500 MHz memory through Overdrive. If you have the will to push this card further, AMD lays the foundation. Be forewarned, though. Even if you damage the card using its built-in second BIOS, warranty coverage wont apply."
I have read that the increased heat from this mode could be an issue? Does anyone have experience with this?
I'm freaking out a little bit about it, and I'm already looking at replacing my 120 & 140mm case fans with Noctua's in order to compensate.
Just as a foot note, considering it will up my wattage consumption. Is it crazy for me to think a 1000 watt psu will run my new rig properly?
New Rig Specs...
CPU: Intel 3570K 3.4 ghz (3.8 turbo)
VIDEO CARD : HIS Radeon HD 6990 4GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready
MOTHERBOARD : Asus P8Z77-V LK LGA 1155 Intel Z77 w/ UEFI BIOS
MEMORY: 16GB (8GBx2)
HDD : Single Hard Drive 300GB (Not Solid State)
MONITOR: 27 LCD Samsung (MAX RESOLUTION = 1920x1080)
OS: Microsoft Windows 7 Home Premium 64bit
POWER SUPPLY: 1000 WATT PSU
CHASIS: Thermaltake Xaser VI VG4000BNSB Black Full Tower
For information on the boost mode I'm referring to, I have posted a part of the toms hardware review on the card.
Taken from Tom's hardware review...
"As if to prove it engineered this card beyond what the second-gen PCI Express spec officially supports, AMD takes the dual-BIOS concept introduced on its single-GPU Radeon HD 6900-series cards and puts it to some use. By default, the Radeon HD 6990 runs an 830 MHz core clock at 1.12 V. Flip the switch next to the CrossFire connector, though, and both settings jump to 880 MHz and 1.175 V, respectively, upping the power ceiling to 450 W (clearly, those eight-pin connectors aren't limited to 150 W).
Now, this still isnt the same as a Radeon HD 6970 since the memory clock remains at 1250 MHz in both cases. But AMD does facilitate clocks of up to 1200 MHz core and 1500 MHz memory through Overdrive. If you have the will to push this card further, AMD lays the foundation. Be forewarned, though. Even if you damage the card using its built-in second BIOS, warranty coverage wont apply."
, most people on this forum are very helpful. keep in mind the 6990 is still a very powerful card. It's loud and hot, but at least it's got the power to back it up.
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