Athlon 64 3000+ RAM issues

[htnakirs]

Config : Athlon 64 3000+ Venice, ASROCK 939NF4G-SATA2 (Nforce 6100+410
chipset), 256 MB X 2 DDR 400.

CPU Z shows under the memory tab :
DRAM Frequency value 129
CPU: DRAM value CPU/14.

SPD tab shows the max bandwidth as 200 MHz.

Setting the RAM frequency at Auto in the BIOS shows DDR 333 at boot up.
Since the 3000+ runs at 1800 with the multiplier of 9 and HT frequency
at 200, the DRAM frequency works out to 1800/14 = 129.
Setting the RAM to 400 in the BIOS does not change this value.
If overclocked by increasing HT frequency, the CPU and RAM speeds
correspondingly increase. To run the RAM at its rated speed, I need to
OC the CPU to 2800 (and the HT at 300)!

Can anyone help me understand these values? Anyone else with the same
processor having similar values? Is it the mobo that puts in the
CPU/DRAM ratio?

 

[Guest]

Config : Athlon 64 3000+ Venice, ASROCK 939NF4G-SATA2 (Nforce 6100+410
chipset), 256 MB X 2 DDR 400.

CPU Z shows under the memory tab :
DRAM Frequency value 129
CPU: DRAM value CPU/14.

SPD tab shows the max bandwidth as 200 MHz.

Setting the RAM frequency at Auto in the BIOS shows DDR 333 at boot up.
Since the 3000+ runs at 1800 with the multiplier of 9 and HT frequency
at 200, the DRAM frequency works out to 1800/14 = 129.
Setting the RAM to 400 in the BIOS does not change this value.
If overclocked by increasing HT frequency, the CPU and RAM speeds
correspondingly increase. To run the RAM at its rated speed, I need to
OC the CPU to 2800 (and the HT at 300)!

Can anyone help me understand these values? Anyone else with the same
processor having similar values? Is it the mobo that puts in the
CPU/DRAM ratio?

Have you tried flashing the mobo BIOS? Find the latest one here: -

http://www.asrock.com/support/download.asp?Model=939NF4G-SATA2#bios

I have a 939dual-sata running a 3000+ with DDR400 and changing the memory
speed does not affect the CPU clock as as I know. Here as some of my
settings for comparison: -

Overclock Mode [AUTO]
CPU Frequency [200] (greyed out)
PCI Frequency [100] (greyed out)
Multiplier/Voltage Change [AUTO]
Memory Clock [200MHz (DDR400)]

This gives me CPU running at 1.9 x 200 (1800MHz) and memory running at
DDR400. Never had any problems with this setup since day one.

Finally, are you sure that you have DDR400 and not DDR333 memory? It might
be worth checking again. Also if you haven't already, I would set all of the
memory timings (CAS, TRAS, TRP etc) to [AUTO] until you sort the more
fundamental problems.

Hope some of this helps.

Spambox