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What else to overclock?

post #1 of 7
Thread Starter 


My 6870's are currently clocked at 950/1150 and keep at a nice temp and are still 100% stable with no extra volts. I play dirt 3 at around 80c on one card and around 10c lower on another, are these temps acceptable?

What else is there to overclock to improve performance? See anything bad with my overclock?
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Main Rig
(15 items)
 
Linux PC
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CPUMotherboardGraphicsRAM
i5 2500k 4.3 GHz @1.28v Gigabyte GA-Z68X-UD3P Intel Z68 (REV B3) 2x Sapphire HD 6870 16GB Mushkin Blackline 1600MHz 
Hard DriveHard DriveHard DriveOptical Drive
1x Mushkin Chronos 120gb 2x Samsung F3 1TB  1x Segate 500gb Samsung SH-S223C 
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W7 Home Premium 64 bit BenQ 22"  Corsair TX750 NZXT Phantom White V2 
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Phenom II 955 4.0GHz Asrock extreme3 880g Onboard 4gb Corsair XM3 1600MHz 
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post #2 of 7
Yes, you should lower HT from 2500 to about 2000Mhz. It's faster that way.
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My Rig
(14 items)
 
Ex-wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
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Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
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post #3 of 7
Thread Starter 
Are you sure? I have read threads showing improvements from higher ht.
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i5 2500k 4.3 GHz @1.28v Gigabyte GA-Z68X-UD3P Intel Z68 (REV B3) 2x Sapphire HD 6870 16GB Mushkin Blackline 1600MHz 
Hard DriveHard DriveHard DriveOptical Drive
1x Mushkin Chronos 120gb 2x Samsung F3 1TB  1x Segate 500gb Samsung SH-S223C 
OSMonitorPowerCase
W7 Home Premium 64 bit BenQ 22"  Corsair TX750 NZXT Phantom White V2 
CPUMotherboardGraphicsRAM
Phenom II 955 4.0GHz Asrock extreme3 880g Onboard 4gb Corsair XM3 1600MHz 
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Segate 500gb Ubuntu 18" CTX 
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Main Rig
(15 items)
 
Linux PC
(7 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k 4.3 GHz @1.28v Gigabyte GA-Z68X-UD3P Intel Z68 (REV B3) 2x Sapphire HD 6870 16GB Mushkin Blackline 1600MHz 
Hard DriveHard DriveHard DriveOptical Drive
1x Mushkin Chronos 120gb 2x Samsung F3 1TB  1x Segate 500gb Samsung SH-S223C 
OSMonitorPowerCase
W7 Home Premium 64 bit BenQ 22"  Corsair TX750 NZXT Phantom White V2 
CPUMotherboardGraphicsRAM
Phenom II 955 4.0GHz Asrock extreme3 880g Onboard 4gb Corsair XM3 1600MHz 
Hard DriveOSMonitor
Segate 500gb Ubuntu 18" CTX 
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post #4 of 7
Thread Starter 
I checked my bios and nb is set to 2500mhz and my ht is set to auto. Soy you would suggest taking ht to 2000?
Main Rig
(15 items)
 
Linux PC
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CPUMotherboardGraphicsRAM
i5 2500k 4.3 GHz @1.28v Gigabyte GA-Z68X-UD3P Intel Z68 (REV B3) 2x Sapphire HD 6870 16GB Mushkin Blackline 1600MHz 
Hard DriveHard DriveHard DriveOptical Drive
1x Mushkin Chronos 120gb 2x Samsung F3 1TB  1x Segate 500gb Samsung SH-S223C 
OSMonitorPowerCase
W7 Home Premium 64 bit BenQ 22"  Corsair TX750 NZXT Phantom White V2 
CPUMotherboardGraphicsRAM
Phenom II 955 4.0GHz Asrock extreme3 880g Onboard 4gb Corsair XM3 1600MHz 
Hard DriveOSMonitor
Segate 500gb Ubuntu 18" CTX 
  hide details  
Reply
Main Rig
(15 items)
 
Linux PC
(7 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k 4.3 GHz @1.28v Gigabyte GA-Z68X-UD3P Intel Z68 (REV B3) 2x Sapphire HD 6870 16GB Mushkin Blackline 1600MHz 
Hard DriveHard DriveHard DriveOptical Drive
1x Mushkin Chronos 120gb 2x Samsung F3 1TB  1x Segate 500gb Samsung SH-S223C 
OSMonitorPowerCase
W7 Home Premium 64 bit BenQ 22"  Corsair TX750 NZXT Phantom White V2 
CPUMotherboardGraphicsRAM
Phenom II 955 4.0GHz Asrock extreme3 880g Onboard 4gb Corsair XM3 1600MHz 
Hard DriveOSMonitor
Segate 500gb Ubuntu 18" CTX 
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post #5 of 7
best not to oc the ht
keep it at stock speeds

and overclock through bios not software
post #6 of 7
Yes, it's confirmed by benches, that on AM3, if you raise the HT above ~2200, performance degrades, and between 2000 and 2200 there is no visible performance difference. Also, HT@2000 may ease a strain and help stability or temps

If I have the time, I'll dig around and find the benches for ya, but I guess if you just google them, it will pop up. Several respectable reviews showing the same.
My Rig
(14 items)
 
Ex-wife's Rig
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CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
OSMonitorKeyboardPower
Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
CaseMouse
DeLUX Logitech 
  hide details  
Reply
My Rig
(14 items)
 
Ex-wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
OSMonitorKeyboardPower
Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
CaseMouse
DeLUX Logitech 
  hide details  
Reply
post #7 of 7
Thread Starter 
All good thanks for the advice guys. By the way I do overclocking via bios but I used the software to simply look at the volts among other things. I could have used hwmonitor but I prefer this for some reason.

I hate not having anything to overclock :'( it's so fun fiddiling with settings.
Main Rig
(15 items)
 
Linux PC
(7 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k 4.3 GHz @1.28v Gigabyte GA-Z68X-UD3P Intel Z68 (REV B3) 2x Sapphire HD 6870 16GB Mushkin Blackline 1600MHz 
Hard DriveHard DriveHard DriveOptical Drive
1x Mushkin Chronos 120gb 2x Samsung F3 1TB  1x Segate 500gb Samsung SH-S223C 
OSMonitorPowerCase
W7 Home Premium 64 bit BenQ 22"  Corsair TX750 NZXT Phantom White V2 
CPUMotherboardGraphicsRAM
Phenom II 955 4.0GHz Asrock extreme3 880g Onboard 4gb Corsair XM3 1600MHz 
Hard DriveOSMonitor
Segate 500gb Ubuntu 18" CTX 
  hide details  
Reply
Main Rig
(15 items)
 
Linux PC
(7 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k 4.3 GHz @1.28v Gigabyte GA-Z68X-UD3P Intel Z68 (REV B3) 2x Sapphire HD 6870 16GB Mushkin Blackline 1600MHz 
Hard DriveHard DriveHard DriveOptical Drive
1x Mushkin Chronos 120gb 2x Samsung F3 1TB  1x Segate 500gb Samsung SH-S223C 
OSMonitorPowerCase
W7 Home Premium 64 bit BenQ 22"  Corsair TX750 NZXT Phantom White V2 
CPUMotherboardGraphicsRAM
Phenom II 955 4.0GHz Asrock extreme3 880g Onboard 4gb Corsair XM3 1600MHz 
Hard DriveOSMonitor
Segate 500gb Ubuntu 18" CTX 
  hide details  
Reply
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