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[Official] 7870 Tahiti LE (XT) Owners Club - Page 358

post #3571 of 5206
Alrighty then, stock voltage should be good enough for me. After dealing with Kepler, I thought I would be getting away from dynamic clock speeds, but I guess not... Thankfully there is a bios editor, so it shouldn't that big of a deal for me.

Thanks for your quick replies biggrin.gif
post #3572 of 5206
Not sure If I did something wrong but tried with the beta version and followed the instructions as well as I could and it still won't allow for a change in voltage. I was playing CS:GO last night for a while and was getting noticeable hitching with the clock jumping to boost and back down to stock again so I just eliminated the boost for now and have it set to run at 925 Mhz max.

Hitching is gone with +20% power limit and boost clock removed. But this seems really ****ty that I can't even run my cards own factory boost clock because of the constant clock drops not to mention no room for overclocking. I would try a different PSU but I just bought this one and spent my money on this card so it is impossible at the moment. confused.gif
Edited by Viperelite - 10/27/13 at 3:11am
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post #3573 of 5206
Try Sapphire Trixx... Afterburner worked for me but forced the GPU and Memory to full clocks the whole time.... Sapphire Trixx worked a treat and it still clocks down for 2D and Video settings!
post #3574 of 5206
Wow ok the Sapphire Trixx utility has it unlocked completely by default. I will do some benching while trying a few different under volts. Thanks for the suggestion medseven been trying to change voltage since last night. So I have tried playing with voltage and It stays in boost clock more often under volted to 1100 VDDC. If I change the VDDC to 1050 I seem to get constant VDDC spikes up to 1.24V when the boost clock try's to click on but shuts off immediately after.

Is there any way I can turn off the boost feature even with the overclock set higher then stock? It seems the spike in voltage when the boost state tries to kick in is causing the card to fail in reaching the desired clock speed and kick out of boost for whatever reason. I want to try overclocking to 975 Mhz without the increase in VDDC that comes with the boost state.
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Western Digital Caviar Green 7200RPM 1TB Western Digital 500 GB 7200 RPM  2x LG GH22NS30 (SATA) 22x DVD +/- RW Dual Layer Windows 7 64-Bit 
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post #3575 of 5206
Did someone here say that if the clock speeds go back and forth it means that the card is throttling? Because mine does that and suddenly I have noticed lag and a temperature drop. (1200/1600/+20)
post #3576 of 5206
M3tal was telling me earlier VRM temps can cause throttling but that is if they get to like 110C+. Use GPU-Z sensor tab to check the VRM temperatures after like 15 minutes of full load. Nice overclock btw. I hope I can get a decent OC if i ever figure out this stupid boost clock BS.

Is it worth trying beta AMD drivers or is it best to just stick with the 13.9 normal release?
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post #3577 of 5206
If you want to remove the boost clock completely there is two options. Use manual profiles in Afterburner with Unofficial overclocking mode or edit the bios. Editing the bios is the way to go BUT never edit the bios until you're 100% sure the settings are stable.

I used the AB with manual profiles for awhile, this let me test OC's for stability with no clock fluctuating before the bios editor was available.
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DeskoSaurus X
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CPUMotherboardGraphicsRAM
4790K 4.7 GHz Z97 MPOWER MAX AC 290X Lightning Crucial Ballistix 2000 9-9-9-27 1T 
Hard DriveHard DriveCoolingCooling
2x Crucial MX100 RAID 2x WD Blue RAID EK Supremacy EK-FC R9-290X Lightning 
CoolingCoolingCoolingOS
Alphacool XT45 240mm + EK CoolStream PE 480 10x Cougar Vortex PWM + 2x Helix MCP50X + MCP50X Windows 10 Pro 
MonitorKeyboardPowerCase
ViewSonic VX2250 22" LED Generic HP Corsair AX860i Lian-Li DK-Q2X 
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Logitech G700 XTRAC Ripper TC Electronic Impact Twin Corsair Commander Mini 
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Schiit Vali Kanto Yumi (Bamboo) 
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FX-8350 4.95GHz 24/7 GA-990FXA-UD3 Sapphire 7870 XT  Mushkin Redline 997051 @1866 8-8-8-24 1T 
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Crucial Ballistix Tactical Tracer @1866 8-8-8-2... Black WD6401AALS 2x WD10EZEX Raid-0 EK Supremacy 
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10x Cougar Vortex PWM 3x Helix EK VGA Supremacy Acetal Alphacool NexXxos ST30 240mm, 2x XT45 240mm XSPC X2O 750 
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post #3578 of 5206
Well the VRM temps are at 65C max atm and the clock speeds seem to have stabilized somehow overnight, dunno why. biggrin.gif
post #3579 of 5206
It's probably hitting the power limit. The fluctuating will depend on the game, how much it loads the card. Even with +20 some games would play fine with 0 fluctuation while others would fluctuate a lot. Drove me crazy!
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CPUMotherboardGraphicsRAM
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Hard DriveHard DriveCoolingCooling
2x Crucial MX100 RAID 2x WD Blue RAID EK Supremacy EK-FC R9-290X Lightning 
CoolingCoolingCoolingOS
Alphacool XT45 240mm + EK CoolStream PE 480 10x Cougar Vortex PWM + 2x Helix MCP50X + MCP50X Windows 10 Pro 
MonitorKeyboardPowerCase
ViewSonic VX2250 22" LED Generic HP Corsair AX860i Lian-Li DK-Q2X 
MouseMouse PadAudioOther
Logitech G700 XTRAC Ripper TC Electronic Impact Twin Corsair Commander Mini 
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CPUMotherboardGraphicsRAM
FX-8350 4.95GHz 24/7 GA-990FXA-UD3 Sapphire 7870 XT  Mushkin Redline 997051 @1866 8-8-8-24 1T 
RAMHard DriveHard DriveCooling
Crucial Ballistix Tactical Tracer @1866 8-8-8-2... Black WD6401AALS 2x WD10EZEX Raid-0 EK Supremacy 
CoolingCoolingCoolingCooling
10x Cougar Vortex PWM 3x Helix EK VGA Supremacy Acetal Alphacool NexXxos ST30 240mm, 2x XT45 240mm XSPC X2O 750 
CoolingOSMonitorKeyboard
Jingway DP-600 pump Windows 8.1 Pro x64 ViewSonic VX2250 22" LED Generic HP 
PowerCaseMouseAudio
Rosewill HIVE-650 CM 690 II Advanced B&W  Logitech G700 Xonar DG 
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Tc Electronic Impact Twin Fan Controller: Aerocool X-Vision 2x Swiftech PWM Splitter 
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DeskoSaurus X
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It Does Stuff
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CPUMotherboardGraphicsRAM
4790K 4.7 GHz Z97 MPOWER MAX AC 290X Lightning Crucial Ballistix 2000 9-9-9-27 1T 
Hard DriveHard DriveCoolingCooling
2x Crucial MX100 RAID 2x WD Blue RAID EK Supremacy EK-FC R9-290X Lightning 
CoolingCoolingCoolingOS
Alphacool XT45 240mm + EK CoolStream PE 480 10x Cougar Vortex PWM + 2x Helix MCP50X + MCP50X Windows 10 Pro 
MonitorKeyboardPowerCase
ViewSonic VX2250 22" LED Generic HP Corsair AX860i Lian-Li DK-Q2X 
MouseMouse PadAudioOther
Logitech G700 XTRAC Ripper TC Electronic Impact Twin Corsair Commander Mini 
OtherOther
Schiit Vali Kanto Yumi (Bamboo) 
CPUMotherboardGraphicsRAM
FX-8350 4.95GHz 24/7 GA-990FXA-UD3 Sapphire 7870 XT  Mushkin Redline 997051 @1866 8-8-8-24 1T 
RAMHard DriveHard DriveCooling
Crucial Ballistix Tactical Tracer @1866 8-8-8-2... Black WD6401AALS 2x WD10EZEX Raid-0 EK Supremacy 
CoolingCoolingCoolingCooling
10x Cougar Vortex PWM 3x Helix EK VGA Supremacy Acetal Alphacool NexXxos ST30 240mm, 2x XT45 240mm XSPC X2O 750 
CoolingOSMonitorKeyboard
Jingway DP-600 pump Windows 8.1 Pro x64 ViewSonic VX2250 22" LED Generic HP 
PowerCaseMouseAudio
Rosewill HIVE-650 CM 690 II Advanced B&W  Logitech G700 Xonar DG 
AudioOtherOther
Tc Electronic Impact Twin Fan Controller: Aerocool X-Vision 2x Swiftech PWM Splitter 
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post #3580 of 5206
Ive tried to enable the unofficial overclocking mode in the msi afterburner but It doesn't seem to do anything. I tried changing the mode to 2 to disable the power play power saving thing but it doesn't change anything :S

I'm noticing when the card kicks into boost state at 1.24v and runs at 975Mhz for a few seconds the 12V reading drops to 11.75V and then the boost deactivates going back to 1.1V the 12V reading doesn't go below 11.88V. It seems for some reason the boost state causes a .13 drop instantly in my 12V reading then kicks off in a few seconds, at idle the 12V reading is 12.13V steady. Really wish I had a spare PSU to test it with lmao.
Budget Setup
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CPUMotherboardGraphicsRAM
AMD FX-4170 Asus M5a97 R2.0 PowerColor HD 7870 PCS Tahiti LE 8GB Patriot Viper DDR3 1600 Mhz  
Hard DriveHard DriveOptical DriveOS
Western Digital Caviar Green 7200RPM 1TB Western Digital 500 GB 7200 RPM  2x LG GH22NS30 (SATA) 22x DVD +/- RW Dual Layer Windows 7 64-Bit 
MonitorKeyboardPowerCase
Asus VH242H Razer Tarantula Thermaltake TR2 600W Antec 1200 
MouseMouse PadAudio
Razer Deathadder Razer Exact-Mat Asus Xonar DG 
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Budget Setup
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CPUMotherboardGraphicsRAM
AMD FX-4170 Asus M5a97 R2.0 PowerColor HD 7870 PCS Tahiti LE 8GB Patriot Viper DDR3 1600 Mhz  
Hard DriveHard DriveOptical DriveOS
Western Digital Caviar Green 7200RPM 1TB Western Digital 500 GB 7200 RPM  2x LG GH22NS30 (SATA) 22x DVD +/- RW Dual Layer Windows 7 64-Bit 
MonitorKeyboardPowerCase
Asus VH242H Razer Tarantula Thermaltake TR2 600W Antec 1200 
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