K9A2 CF: Using 2nd PCIE Only

kureng · Apr 12, 2008, 07:45 PM

i just bought the MSI K9A2 CF, and got only one gc: HD3870 IceQ3
The problem is that the first PCIE slot to near with the SATA port, if i place the GC at the first, i cannot get 2 out of 4 SATA port. I need all 4 SATA port to be used. So, i put the GC in the second slot, boot up and it run properly. When check at CCC, "current bus setting: PCI Express 2.0 x8". How can i change it to run at x16 speed??

Silverel · Apr 12, 2008, 08:11 PM

Wouldn't worry about it if I were you. It's not gonna use the full 8x anyways. Reviews were done a while ago showing little difference between 16x/8x CF, and something like a 10% hit for 16x/4x.

Hellraiser1981 · Apr 12, 2008, 08:15 PM

Check for bios upgrades on MSI's site. Sometimes boards are released with a barely functional bios.

kureng · Apr 12, 2008, 08:15 PM

Quote:

Originally Posted by Silverel

Wouldn't worry about it if I were you. It's not gonna use the full 8x anyways. Reviews were done a while ago showing little difference between 16x/8x CF, and something like a 10% hit for 16x/4x.

did you mean for CF? but i only hv ONE gc...

kureng · Apr 12, 2008, 08:16 PM

Quote:

Originally Posted by Hellraiser1981

Check for bios upgrades on MSI's site. Sometimes boards are released with a barely functional bios.

already update to the latest version from MSI site

Hellraiser1981 · Apr 12, 2008, 08:19 PM

Quote:

Originally Posted by Silverel

Wouldn't worry about it if I were you. It's not gonna use the full 8x anyways. Reviews were done a while ago showing little difference between 16x/8x CF, and something like a 10% hit for 16x/4x.

I agree, 8x pci-e is how many MB/s??? Might get a 1fps or so increase if you got it working.
Did you try anything like atitool? Might have bus options, havent used it in awhile.

kureng · Apr 12, 2008, 08:28 PM

i just want to know either the equation below is true or not

PCIE 1.0 x16 = PCIE 2.0 x8

FR@NK · Apr 12, 2008, 08:36 PM

Quote:

Originally Posted by kureng

i just want to know either the equation below is true or not

PCIE 1.0 x16 = PCIE 2.0 x8

I would think that PCIE 2.0 x8 is abit faster due to the bus running at twice as fast. Max bandwidth would be the same but a bus running twice as fast should have a lower latency across the bus.

Silverel · Apr 13, 2008, 02:51 AM

List of device bandwidths

Yes, in theory.

PCIe 1.0 16x = PCIe 2.0 8x

Apr 12, 2008, 07:45 PM	#1
kureng Join Date: Apr 2007 Posts: 95 (0.04/day) Thanks: 8 Thanked 0 Times in 0 Posts System Specs	K9A2 CF: Using 2nd PCIE Only i just bought the MSI K9A2 CF, and got only one gc: HD3870 IceQ3 The problem is that the first PCIE slot to near with the SATA port, if i place the GC at the first, i cannot get 2 out of 4 SATA port. I need all 4 SATA port to be used. So, i put the GC in the second slot, boot up and it run properly. When check at CCC, "current bus setting: PCI Express 2.0 x8". How can i change it to run at x16 speed??

Processor:	AMD64 X2 5000 BE OCed 3.0Ghz
Motherboard:	MSI K9A2 CF A790X
Cooling:	CoolerMaster Gemin II
Memory:	2GB Corsair XMS2 6400C4 DDR2 OCed 1000Mhz CL 4-4-4-13
Video Card:	HIS ATI Radeon HD3870 ICEQ3 512MB GDDR4
Hard Disk:	WD 500GB SATA2, Seagate 250GB SATA2, Seagate 160GB SATA2
Optical Drive:	Samsung Writemaster 20X
CRT/LCD Model:	Viewsonic LCD 17inch
Case:	CoolerMaster RC-690
Sound Card:	Realtek High Definition ALC888
PSU:	CoolerMaster Extreme Power
Software:	Windows Vista Ultimate x86 SP1

Apr 12, 2008, 08:11 PM	#2
Silverel Join Date: Nov 2007 Location: Detroit, MI Posts: 1,596 (0.79/day) Thanks: 93 Thanked 237 Times in 217 Posts System Specs	Wouldn't worry about it if I were you. It's not gonna use the full 8x anyways. Reviews were done a while ago showing little difference between 16x/8x CF, and something like a 10% hit for 16x/4x. __________________ http://www.heatware.com/eval.php?id=62786

Processor:	Intel i5 2500k
Motherboard:	Biostar TP67XE
Cooling:	Stock
Memory:	4x2GB G. Skill DDR3 @ 1600 9-9-9-24
Video Card:	Sapphire 5870 1GB
Hard Disk:	90GB OCZ Agility 2 SSD, 640GB WesternDigital Black
CRT/LCD Model:	24" Acer 19x12 LCD / 24" Gateway 19x12 LCD
Case:	Coolermaster Mystique - Modded
Sound Card:	Onboard
PSU:	Corsair Modular HX620w
Software:	Windows 7 Pro

Processor:	AMD64 X2 5000 BE OCed 3.0Ghz
Motherboard:	MSI K9A2 CF A790X
Cooling:	CoolerMaster Gemin II
Memory:	2GB Corsair XMS2 6400C4 DDR2 OCed 1000Mhz CL 4-4-4-13
Video Card:	HIS ATI Radeon HD3870 ICEQ3 512MB GDDR4
Hard Disk:	WD 500GB SATA2, Seagate 250GB SATA2, Seagate 160GB SATA2
Optical Drive:	Samsung Writemaster 20X
CRT/LCD Model:	Viewsonic LCD 17inch
Case:	CoolerMaster RC-690
Sound Card:	Realtek High Definition ALC888
PSU:	CoolerMaster Extreme Power
Software:	Windows Vista Ultimate x86 SP1

Apr 12, 2008, 08:15 PM	#3
Hellraiser1981 Join Date: Apr 2005 Location: Green Bay, WI Posts: 298 (0.10/day) Thanks: 6 Thanked 24 Times in 19 Posts	Check for bios upgrades on MSI's site. Sometimes boards are released with a barely functional bios.

Apr 12, 2008, 08:28 PM	#7
kureng Join Date: Apr 2007 Posts: 95 (0.04/day) Thanks: 8 Thanked 0 Times in 0 Posts System Specs	i just want to know either the equation below is true or not PCIE 1.0 x16 = PCIE 2.0 x8

Processor:	3930k @4.5Gees
Motherboard:	Asus Rampage IV
Cooling:	Air :(
Memory:	64GB Crucial 833MHz CL8
Video Card:	Asus 7970 MatrixP
Hard Disk:	4x Intel SSD raid
Optical Drive:	Bluray and HDDVD
CRT/LCD Model:	Pioneer Elite PRO-101
PSU:	Corsair AX860
Software:	8 x64

Apr 13, 2008, 02:51 AM	#9
Silverel Join Date: Nov 2007 Location: Detroit, MI Posts: 1,596 (0.79/day) Thanks: 93 Thanked 237 Times in 217 Posts System Specs	List of device bandwidths Yes, in theory. PCIe 1.0 16x = PCIe 2.0 8x __________________ http://www.heatware.com/eval.php?id=62786

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