Gigabyte GA-880GM-UD2H 1.4rev memory timmings and FSB questions

[forestlawn]

my rig:
Gigabyte GA-880GM-UD2H 1.4rev
DualCore AMD Athlon II X2 255, 3100 MHz (15.5 x 200) AM3 Socket CN: Regor
Chipset:  AMD 880G, AMD K10
System Memory: 11772 MB  (DDR3-1333 DDR3 SDRAM)

DIMM1: Kingston 9905471-001.A00LF                 2 GB DDR3-1333 DDR3 SDRAM  (8-8-8-22 @ 609 MHz)  (7-7-7-20 @ 533 MHz)  (6-6-6-17 @ 457 MHz)
DIMM2: Kingston 9905471-011.A00LF                 4 GB DDR3-1333 DDR3 SDRAM  (8-8-8-22 @ 609 MHz)  (7-7-7-20 @ 533 MHz)  (6-6-6-17 @ 457 MHz)
DIMM3: Kingston 9905471-001.A00LF                 2 GB DDR3-1333 DDR3 SDRAM  (8-8-8-22 @ 609 MHz)  (7-7-7-20 @ 533 MHz)  (6-6-6-17 @ 457 MHz)
DIMM4: Kingston 9905471-011.A00LF                 4 GB DDR3-1333 DDR3 SDRAM  (8-8-8-22 @ 609 MHz)  (7-7-7-20 @ 533 MHz)  (6-6-6-17 @ 457 MHz)
CPU Speed:
      CPU Clock                                         3113.8 MHz  (original: 3100 MHz)
      CPU Multiplier                                    15.5x
      CPU FSB                                           200.9 MHz  (original: 200 MHz)
      HyperTransport Clock                              2008.9 MHz
      North Bridge Clock                                2008.9 MHz
      Memory Bus                                        535.7 MHz
      DRAM:FSB Ratio                                    16:6

Memory Bus Properties:
Bus Type: Unganged Dual DDR3 SDRAM
Bus Width: 128-bit
DRAM: FSB Ratio:16:6
OBV: ATI Radeon HD 4250  (512 MB)

 OK I'm from "old school" tech, I am "self-learned" and do and can build machines (PC). I am not ignorant but these new systems I am an apprentice still. I am concerned about the FSB ratio. Given the information I've shared what should be the correct FSB Ratio? Right now everything in timings, in BIOS is in "auto". If I can SAFELY tweak it manually I would be most thankful for some info.

Thank you very much!!

[Vezina]

By default all is ready to use as per AMD specifications.


Because your CPU is factory locked CPU Multiplier wise (opposed to Phenom 2 BE) you can only tweak one setting to achieve higher clocks.
The so called wrongly FSB.
It s not really FSB it s HTT .
This is called overclocking and will void warranty.

You are able to increase the HTT from 200 up.
By increasing this value you will increase the CPU clock ,RAM speed and the HT Link speed in same time.When you will hit a wall for one of this values you will have an unbootable system requiring clear CMOS.

CPU clock =HTT X CPU Multiplier
HT Link=HTT X HT Multiplier
RAM speed =HTT X Memory Multiplier

To avoid RAM limitation you should drop the memory multiplier to achieve lower RAM speeds.

By default your system is ready to play .

[forestlawn]

took some pics..guide mr through

[forestlawn]

and more

[forestlawn]

more pics

[Vezina]

I ve played a lot with Athlon 6400+ and  Phenom 2 memory timings and never achieved to much performance without secondary effects in stability or data corruption.
The only timing that will bring more performance is the Command Rate tweak , but if the memory or the memory controller doest want it at 1T you will have to Clear CMOS.
Having in mind the amount of memory modules you will NOT be able to tweak that one too.

The memory banks are full in your case ,you are using all slots ,so no memory tweak is possible due to the memory controller limitations.
I would be surprised to see your memory amount pass Memtest as it is at 1333 Mhz.

As you can see the motherboard already down clocked the RAM to keep stability.Maybe try the 1066Mhz(533Mhz)

Set Memory Clock from auto to manual

Nevermind you are already at 1066Mhz. from what the bios picture shows.

[forestlawn]

Thank you for all your help. I'm not complaining about my machine, it does good but the HTT aka FSB did puzzle me.
Man I wish I has an asus board lol

[Vezina]

Thank you for all your help. I'm not complaining about my machine, it does good but the HTT aka FSB did puzzle me.
Man I wish I has an asus board lol

It s not the board ,it s the way things work regarding HTT tweaks on the Athlon CPU-s

On the other hand with an overclocking board you can achieve even 250 HTT speeds (with Phenoms).
Calculate the CPU resulting speed having in mind the Phenom 2 ability to let you tweak the CPU Multiplier.With small HT Link Multi and Memory devider drops imagine what you get in CPU speeds.

RAM wise it s the AMD memory controller limitation.You can achieve 1333Mhz with 2 identical RAM modules only ,in dual channel ,2 slots taken.

[Hippie Tech]

Hi Forestlawn

Change the memory setting from auto to manual and your ram will run at 1333mhz and use the SPD timings. The manual settings should match the SPD list.

Once back in windows, the FSB ratio will be back to normal.

pEACe

HT