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oc visiontek 5850

post #1 of 13
Thread Starter 
I have a visiontek 5850 non-reference. stock clocks are 750/1050. the highest oc i have gotten on stock volts (1.063) is 815/1200.

Sense my goal for the oc is 900/1200, i have already meet my goal for 1200,but i can't pass 880 stable. the temps. at the highest OC is just sitting around 60c. Sense i know people say 70c is about the most you want to go on air-cooling for a video card i feel that i still have head room to oc to my gpu goal of 900.


forgot to say stable high oc is 870/1200 at 1.068v. if I'm missing any info to help out please let me know. also on current ati video drivers.
My System
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CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
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post #2 of 13
You can def push that thing way further! My old 5850 ref editions I had them at 1.3V totally safe and stable. I would hit upward of 80c while running furmark but in gaming would never get past 70c. Those cards are ment to run hot and are absolutly safe at those temps. I say to start out bump your volts up to 1.15 bring your core up to 900 leave the memory at 1200 and try to run furmark. If you need to unlock the voltage on that card download a utility called Sapphire Trixx! It is so awesome! If you need any help or some advice feel free to send me a PM, i'd be glad to help ya out.
post #3 of 13
post #4 of 13
Thread Starter 
thanks for the info man. ya the trixx program is what i been using. Dan 1.15v hmm ill have to give it a try then. ill post back with what i get at those volts.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
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post #5 of 13
Thread Starter 
180 am i doing something wrong. as soon as i did the 900/1200/1150v shortly into heaven i got the messed up screen. no artifacts just the lines down the screen that are grey and stuff.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
  hide details  
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
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post #6 of 13
Your temps are extremly low! I'm jealous! Your only running the card at 1.06 volts. You need to bump that voltage up to 1.15V - 1.20V. Run furmark for about 15 minutes if you don't crash or freeze up increase the core clock to 920 and repeat running furmark at 15 min intervals until your card crashes again. At this point you should find the cards "sweet spot". If your temps at full load are under 75c-80c keep bumping the voltage little by little. Scenario is played out below.

1. Current clock - 900
Memory - 1200
1.06V
-crashes under furmark

2. clock @ 900
memory @ 1200
1.1V
-run furmark for 15 minutes without a crash.

3. If crashed at 1.1V rise it to 1.15V and try again.

4. Say you can run furmark for 15 minutes at 1.15, increase the core clock to 920-925, and run furmark again for 15 minutes.

5. You were able to run for 15 minutes at 1.15V, bump the clock to 940, repeat the process and so on.

6. Keep doing this until either adding voltage doesn't make the card stable any longer or your temps exceed 80c on full load. (even though alot of people will tell you these cards are safe up to 90c, i never feel safe over 85c)

This is just my personal recomendation, others may offer different advice. But hey I got cards that are stock at 880/1375 overclocked to 1015/1475 @ 1.25V all day stable under 75c.
post #7 of 13
Thread Starter 
sorry the photo was taking after the reboot and i hadn't switch back the volts o what you stated earlier in the thread. so 1.1v is equal to 1100 correct?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
  hide details  
Reply
post #8 of 13
Thread Starter 
180
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
  hide details  
Reply
post #9 of 13
Thread Starter 
gray screened with lines.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
  hide details  
Reply
post #10 of 13
Thread Starter 
450 this what happens.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 860 oc to 3.6 Asus Sabertooth 55I visiontek 5850 OCZ 1600-8-8-8-24 
Hard DriveOptical DriveOSMonitor
WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
KeyboardCaseMouseMouse Pad
Razor coolmaster cxx II logitech dell 
  hide details  
Reply
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