AMD X2 - DDR at 333 Now

[O_o]

Something is not quite right since plugging in an extra 2x512MB DDR1 Dual Channel Memory into my PC.
Memory now runs at just DDR333 and not DDR400.

When I had just 2x1GB DDR1 Dual Channel Memory the speed was DDR400. Since playing with Vista I decided to put in some more matched pairs and now I get only DDR333 on my nForce 4 SLI board.

I don't understand why o_0

This is the SiSoft Sandra Report

SiSoftware Sandra

Mainboard
Manufacturer : ASUSTeK Computer INC.
MP Support : 1 Processor(s)
MPS Version : 1.40
Model : A8N-SLI
Version : 1.XX
Serial Number : 123456789000
System BIOS : 11/25/2005-NF-CK804-A8NSLI-B-00

System Memory Controller
Location : Mainboard
Error Correction Capability : None
Number of Memory Slots : 4
Maximum Installable Memory : 4GB
Bank0/1 - A0 : None None None None DIMM 1GB/64 @ 333Mt/s
Bank2/3 - A1 : None None None None DIMM 512MB/64 @ 333Mt/s
Bank4/5 - A2 : None None None None DIMM 1GB/64 @ 333Mt/s
Bank6/7 - A3 : None None None None DIMM 512MB/64 @ 333Mt/s

Chipset 1
Model : Advanced Micro Devices (AMD) Athlon 64 / Opteron HyperTransport Technology Configuration
Bus(es) : PCI PCIe USB FireWire/1394 i2c/SMBus
Version : 1.02
Front Side Bus Speed : 2x 1005MHz (2010MHz data rate)
Maximum FSB Speed / Max Memory Speed : 2x 1000MHz / 2x 200MHz
In/Out Width : 16-bit / 16-bit
IO Queue Depth : 8 request(s)

Chipset 1 Hub Interface
Type : HyperTransport
Version : 1.02
In/Out Width : 16-bit / 16-bit
Speed : 2x 1005MHz (2010MHz data rate)

Logical/Chipset 1 Memory Banks
Bank 0 : 1GB DDR-SDRAM 2.5-3-3-5 2CMD
Bank 1 : 1GB DDR-SDRAM 2.5-3-3-5 2CMD
Bank 2 : 512MB DDR-SDRAM 2.5-3-3-5 2CMD
Bank 3 : 512MB DDR-SDRAM 2.5-3-3-5 2CMD
Channels : 1
Speed : 2x 158MHz (316MHz data rate)
Multiplier : 1/14x
Width : 128-bit
Memory Controller in Processor : Yes
Cores per Memory Controller : 2 Unit(s)
Refresh Rate : 7.80µs
Power Save Mode : No
Fixed Hole Present : No

Memory Module 1
Model : CL3-4-4-DDR 400
Extended Information : Golden Empire Int Ltd
Type : 1GB DDR-SDRAM
Technology : 16x(64Mx8)
Speed : PC3200U 2.5-3-3-6
Date of Manufacture : Sunday, 16 April 2006
Set Timing @ 200MHz : 2.5-3-3-6
Set Timing @ 167MHz : 2.0-3-3-5

Memory Module 2
Model : CL3-4-4-DDR 400
Extended Information : Golden Empire Int Ltd
Type : 1GB DDR-SDRAM
Technology : 16x(64Mx8)
Speed : PC3200U 2.5-3-3-6
Date of Manufacture : Sunday, 16 April 2006
Set Timing @ 200MHz : 2.5-3-3-6
Set Timing @ 167MHz : 2.0-3-3-5

Memory Module 3
Model : CL25-3-3DDR 400
Extended Information : Golden Empire Int Ltd
Type : 512MB DDR-SDRAM
Technology : 16x(32Mx8)
Speed : PC3200U 2.5-3-3-6
Date of Manufacture : Sunday, 24 September 2006
Set Timing @ 200MHz : 2.5-3-3-6
Set Timing @ 167MHz : 2.0-3-3-5

Memory Module 4
Model : CL25-3-3DDR 400
Extended Information : Golden Empire Int Ltd
Type : 512MB DDR-SDRAM
Technology : 16x(32Mx8)
Speed : PC3200U 2.5-3-3-6
Date of Manufacture : Sunday, 24 September 2006
Set Timing @ 200MHz : 2.5-3-3-6
Set Timing @ 167MHz : 2.0-3-3-5

Environment Monitor 1
Model : ITE IT8712F LPC
Version : 7.00
Mainboard Specific Support : No

Temperature Sensor(s)
Board Temperature : 33.0°C / 91.4°F
CPU Temperature : 25.0°C / 77.0°F
Power / Aux Temperature : 31.0°C / 87.8°F

Cooling Device(s)
Auto Fan Speed Control : No
Chassis Fan Speed : 1133rpm
Power / Aux Fan Speed : 11638rpm

Voltage Sensor(s)
CPU Voltage : 1.38V
+3.3V Voltage : 3.38V
+5V Voltage : 5.05V
+12V Voltage : 11.92V
Standby Voltage : 5.08V
Battery Voltage : 3.09V

PCI Bus(es) on Hub 1
Version : 2.30
Number of Bridges : 5
PCI Bus 0 : PCI (1/1x PCIClk)
PCI Bus 1 : PCIe (3/1x PCIClk)
PCI Bus 2 : PCIe (3/1x PCIClk)
PCI Bus 3 : PCIe (3/1x PCIClk)
PCI Bus 4 : PCIe (3/1x PCIClk)
PCI Bus 5 : PCI (1/1x PCIClk)
Number of PCIe Lanes : 20

LPC Hub Controller 1
Model : ASUSTeK Computer Inc nForce4 PCI to ISA Bridge

LPC Hub Controller 2
Model : ASUSTeK Computer Inc nForce4 SMBus

Other than that, the RAM is at 2T timing and I can't find the right option on my ASUS A8N SLI to change the clock manually to DDR 400. O_0

[CommanderEl]

Read your mobo manual, it should explain what speeds your ram will run depending on how many sticks you have in there.

Having 4 sticks is generally a bad idea for performance.

[bl4ck32]

should be the same as this if its asus : http://forums.overclockers.com.au/sh...memory+divider

if its on auto it may lower Mhz by itself...

[O_o]

Originally Posted by bl4ck32

should be the same as this if its asus : http://forums.overclockers.com.au/sh...memory+divider

if its on auto it may lower Mhz by itself...

I know that it does so for stability etc, but there must be an option to override this. I have read people overriding this setting and quite successfully running 4 banks of DDR 400 at full speed although at 2T.

[Vladdo]

Why on earth would you want 3gb of ram anyway? 2gb is plenty for even heavy tasks...
I'd think that because you have pairs of 2x1gb and 2x512mb it will default to the lowest speed even if they are all of same type.

[FearTec]

Originally Posted by O_o

I know that it does so for stability etc, but there must be an option to override this. I have read people overriding this setting and quite successfully running 4 banks of DDR 400 at full speed although at 2T.

Swap the 4x 512's for 2x 1GB's or pay the 333Mhz/2T price.

[Voltus]

yep, the memory controller on A64 has trouble handlin 4 x 512 at DDR400 1T..

i think DFI boards ( expert) can do it.. but thats because the Bios was heavily tweaked.

[R3xx]

Windows XP can only address 2GB of RAM anyway. I hope for your sake ur running XP x64 edition because otherwise the extra 1GB is wasted!

[FearTec]

Originally Posted by R3xx

Windows XP can only address 2GB of RAM anyway. I hope for your sake ur running XP x64 edition because otherwise the extra 1GB is wasted!

Windows XP can access 4GB (32bit limit) of memory not 2GB. The only 2GB limit is FAT16 partitions.


Update: (+ 10 mins)
A little googling reveals there may be 2GB process limittation in 32bit systems.

Source: http://msdn.microsoft.com/msdnmag/is...l/default.aspx

[Mitch01]

I got the jist he was running Vista??

It shouldnt make a difference, but check what slots the RAM are in, make sure both are in Dual Channel mode, and try swapping the 512 and 1GB slots and see if the fixes it.

[FLB]

I had this problem on my MSI NF3 Ultra board (doesn't happen on my NF4 board), running 4 x 512 modules, it reverted back to 333 (running with auto settings in bios), I just selected the 400 option manually and also 2T and all was well and no stability issues at all.