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Old 11-11-2008, 03:28 PM   #1 (permalink)
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Sapphire Radeon HD4870X2 second core not enabled, Help

hello guys,

i just noticed today when i was exploring my ati control center, under the category information center --> Graphics Hardware, that the other core is enabled and the other one is not (that might explain the poor performance in Age Of Conan Game "LoW graphics 30FPS") :

Primary Adapter
Graphics Card Manufacturer Built by ATI
Graphics Chipset ATI Radeon HD 4870 X2
Device ID xxxx
Vendor xxxx

Subsystem ID xxxx
Subsystem Vendor ID xxxx

Graphics Bus Capability PCI Express 2.0
Maximum Bus Setting PCI Express 2.0 x16

BIOS Version 011.007.000.000
BIOS Part Number 113-B50902-xx0
BIOS Date 2008/07/14

Memory Size 1024 MB
Memory Type GDDR5

Core Clock in MHz 750 MHz
Memory Clock in MHz 900 MHz
Total Memory Bandwidth in GByte/s 107 GByte/s


Disabled Adapter
Graphics Card Manufacturer Built by ATI
Graphics Chipset ATI Radeon HD 4870 X2
Device ID xxxx
Vendor xxxx

Subsystem ID xxxx
Subsystem Vendor ID xxxx

Graphics Bus Capability PCI Express 2.0
Maximum Bus Setting PCI Express 2.0 x16

BIOS Version 011.007.000.000
BIOS Part Number 113-B50902-xx1
BIOS Date 2008/07/14

Memory Size 1024 MB
Memory Type GDDR5

Core Clock in MHz 750 MHz
Memory Clock in MHz 900 MHz
Total Memory Bandwidth in GByte/s 107 GByte/s

So My question is: how to enable both cores?
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Old 11-11-2008, 03:56 PM   #2 (permalink)
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Re: Sapphire Radeon HD4870X2 second core not enabled, Help

btw i downloaded GPU-Z and heres are the info's :

GPU 1 : http://gpuz.techpowerup.com/08/11/11/cvf.png

GPU 2 : http://gpuz.techpowerup.com/08/11/11/guc.png

now, as you see the second gpu is downclocked w00t?! i have no idea why it is downclocked.... need serious help here guys
also, what does "ATI crossfire enabled (2GPUs) , sideport off" mean?

And also in my ati overdrive section it shows that the GPU activity is: 524% So ***? my GPU is totally ****** up?

Last edited by seeker991; 11-11-2008 at 04:10 PM.
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Old 11-14-2008, 06:05 AM   #3 (permalink)
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Re: Sapphire Radeon HD4870X2 second core not enabled, Help

comon people, somebody solved the issue? plz... need help .. i have payed alot of money for this card and i have no performance :S
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Old 11-14-2008, 01:53 PM   #4 (permalink)
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Re: Sapphire Radeon HD4870X2 second core not enabled, Help

Download the catalyst drivers (8.11) that'll cure the activity bug.
Enable catalyst AI to use both gpu's.
It is down clocked untill you enter a 3d app that supports crossfire.
The new drivers downclock both cores when in 2d mode, therefor keeping the gpu nice and cool. Everything runs fine once you start a game though.
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Old 11-14-2008, 05:01 PM   #5 (permalink)
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Re: Sapphire Radeon HD4870X2 second core not enabled, Help

ok, two questions:
1. where to download 8.11 drivers?
2. ati catalyst AI is going to be on advanced or basic?
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Old 11-14-2008, 05:11 PM   #6 (permalink)
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Re: Sapphire Radeon HD4870X2 second core not enabled, Help

Get them here> http://ati.amd.com/support/driver.HTML

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