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[SOLVED] 5870 under clocks too low.

post #1 of 3
Thread Starter 
Ok well I just got my card and well I love it the card is saphire 5870 x6.


Ok to the point, when the overdrive is not connected the gpu clock stay at 400MHz and the Memory Clock at 1200Mhz.

Ok when I play an online video it the gpu clock stays the same though the memory drops to 900Mhz. Please note this is when over drive is not in use or any oc utility. Ok i can deal with it everything works just want to know while its idle it stay high yet when i play a video it drops weird.

OK now when I activate overdrive mind you that I didnt change anything so lets say its stock. The gpu clock drops to 250Mhz and memmory to 300-400MHz. *** i get so many flickers and when I start a video or move thing to the other monitors and so on. What can be causing this???? any ideas????

I read on other forums to try MSI after burner but to no avail the clocks are 2 low causing the pc to fliker.

I really dont have to oc the card just wondering. Other wise the card is filling my needs.
Edited by Charles1 - 4/21/11 at 11:37pm
Babyship
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CPUMotherboardGraphicsRAM
Core i7 950 3.20GHz MSI X58m Sapphire 5870 CorsairXMS3 (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 
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OCZ Vertex 2 60Gb None Windows 7 x64 Ultimate 3 x SAMSUNG BX2231 LED Monitors 
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Babyship
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Core i7 950 3.20GHz MSI X58m Sapphire 5870 CorsairXMS3 (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 
Hard DriveOptical DriveOSMonitor
OCZ Vertex 2 60Gb None Windows 7 x64 Ultimate 3 x SAMSUNG BX2231 LED Monitors 
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post #2 of 3
Have a look at this post, it shows how to set your 2D clocks.
hope it helps.
http://www.techpowerup.com/forums/showpost.php?p=1750053&postcount=2
SoulStorm Brew
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SoulStorm Brew
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El Niño
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CPUMotherboardGraphicsRAM
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Sammy 850pro 256g + 2.5 " Toshiba 1T  Modded stock FX cooler lapped + 92mm Tacens Aur... Sony Bravia 46" 
PowerCaseMouse
420w Tacens radix IV  Silverstone grandia Loves to be touched  
CPUMotherboardGraphicsRAM
Athlon 5350 ASUS AM1I-A itx HD 8400 2 x 2gig Crucial ballistix tactical 1600 
Hard DriveCoolingOSMonitor
Sammy 830 64g + Toshiba 750g 2.5  stock + 120mm Skythe slipstream 32" LG 
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post #3 of 3
Thread Starter 
OK sorry for not updating my thread, well in case anyone has the same issues here is what I did to fix it he he.

First my previous card was a 4890 so I had to uninstall drivers and ccc. i did that and ran ccleaner.
Then installed new drivers for new card and well it still gave me the issue. So i did everything you could possibly think of unplug, re sit the card, psu testing, remove OC, test ram and so on and even so far to reinstall windows.

Well here is the solution that worked for me:
I had to clear the cmos/bios back to defaults no OC or special setting just the basic settings.
Then installed windows, Installed the newest drivers on AMD/ATI website.
Reboot and presto tick ATI overdrive and it underclocked still but this time it did not flicker or lagged at all. Yet when I watched a you tube the clocks went up YAY.

When you dont have overdrive on the gpu core clock will always be at 400MHz and ram at 1200. When over drive is on even if you leave at stock speeds it will underclock itself to 175MHz core clock speed and ram at 300Mhz. Dont freak out it works, once you start doing stuff the clocks will go back up and when you game the clock will go to the max settings you have set on over drive.

So hope some that has the same issues just give in and reset everything and work your way back up.

Although I can do any stress testing since I dont have a M/B at the moment stupid open box deals from newegg. LOL Yeah my fault I know anywho currently awaiting brand new board see how it goes this time around.
Babyship
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Core i7 950 3.20GHz MSI X58m Sapphire 5870 CorsairXMS3 (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 
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OCZ Vertex 2 60Gb None Windows 7 x64 Ultimate 3 x SAMSUNG BX2231 LED Monitors 
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HP Antec BP550 Plus 550W Continuous Power ATX12V V2.2 Lian Li PC-V354 
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Babyship
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CPUMotherboardGraphicsRAM
Core i7 950 3.20GHz MSI X58m Sapphire 5870 CorsairXMS3 (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 
Hard DriveOptical DriveOSMonitor
OCZ Vertex 2 60Gb None Windows 7 x64 Ultimate 3 x SAMSUNG BX2231 LED Monitors 
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HP Antec BP550 Plus 550W Continuous Power ATX12V V2.2 Lian Li PC-V354 
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