ASUS P5B & KINGSTON KHX6400D2/1G HYPERX PC6400 800 recognised as PC2-53

[retroborg]

Hello,
I recently bought a new Mother Board (ASUS P5B) & Core 2 Duo 6600 @ 2.4GHZ:

ASUS P5B:
http://www.asus.com/products4.aspx?l1=3&l2=11&l3=307&model=1178&modelmenu=1

I installed the following Ram:
KINGSTON KHX6400D2/1G HYPERX 1GB PC6400 800MHZ
http://www.e-shop.gr/show_per.phtml?id=PER.554789

But, when the system boots up, at the American Megatrends Bios DOS screen, the memory is recognized as:
PC2-5300 667MHz and not PC2-6400 800MHZ!

I updated the Bios to 1007 from here:
http://support.asus.com/download/download.aspx?SLanguage=en-us&model=P5B

But the same problem persists!

I read in the manual:
http://support.asus.com/download/download.aspx?SLanguage=en-us&model=P5B

Due to chipset limitation, DDR2-800 with CL=4 will be downgraded to run at DDR2-667 by default setting. If you want to operate with lower latency, adjust the memory timing manually.

Some old-version DDR2-800/667 DIMMs, may not match Intel's On-Die-Termination (ODT) requirement and will automatically downgrade to run at DDR2-533. If this happens, contact your memory vendor to check the ODT value.

I can’t find any section on the BIOS menu where I could adjust the memory tiomings manually?!
But this specific Kingston RAM is mentioned as CL5, with timings:5-5-5-15, so this shouldn’t be happening!?

Also, in the manual, at the P5B Premium Series M/B Qualified Vendors List (QVL) DD2-800MHZ capability, Kingston 1GB DDR2-800MHZ is listed, but not my specific KINGSTON KHX6400D2/1G HYPERX 1GB PC6400 800MHZ model.

Is there any solution to this problem or should I change the brand of the RAM or even the M/B?
Please, any help will be highly appreciated!

Thanks in advance.

[oldandinthe way]

If you cannot contact ASUS and get a resolution to this problem, return the motherboard and purchase a product which is supported by its manufacturer.

[retroborg]

OK, got it!
It was in the Advanced, "JumperFree Configuration", you can set the DRAM frequency to DDR-800MHZ, 889MHZ, even up to 1066MHZ!

Cool!
Me Happy!

[retroborg]

Also, I disabled the spd in the Chipset/Northbridge menu and set the DRAM CL=5. (It was all ready CL=5 by default)

But, there are a few other fields in this menu, which I’m not familiar with:

Memory Remap Feature = [Disabled]
Configure DRAM Timing by SPD = [Disabled]
DRAM CAS# Latency = [5]
DRAM RAS# Precharge = [6 DRAM Clocks]
DRAM RAS# to CAS# Delay = [6 DRAM Clocks]
DRAM RAS# Activate to Precharge = [15 DRAM Clocks]
DRAM Write Recovery Time = [6 DRAM Clocks]
DRAM TRFC = [42 DRAM Clocks]
DRAM TRRD = [10]
RANK Write To Read Delay = [10]
Read To Precharge Delay = [10]
Write To Precharge Delay = [10]
Static Read Control = [Auto]
Initiate Graphic Adapter PEG/PCI

REG Port Configuration
REG Force x 1 = [Disabled]

But since I’m not sure what they’re used for, I left them as they are.


But, shouldn't it be:
DRAM CAS# Latency = [5]
DRAM RAS# Precharge = [5 DRAM Clocks]
DRAM RAS# to CAS# Delay = [5 DRAM Clocks]
DRAM RAS# Activate to Precharge = [15 DRAM Clocks]

In order to achieve the factory Timings: 5-5-5-15 of this specific Kingston RAM?

What do you suggest?

Also in the Jumperfree menu, there is this field:

AI Tuning = [Auto]
If set to manual, you can change the CPU frequency/voltage, PCI frequency, etc…

Thanks in advance.

[dcsos]

Its amazing to me how complex PC confuration has become (is that a word)?

[retroborg]

OK, so I disabled SPD and set the right timings: 5,5,5,15 and in the Advanced, "Jumper Free Configuration", I set the DRAM frequency to DDR-800MHZ, so when the system boots up, (at the American Megatrends Bios DOS screen), the memory is indeed recognized as:
PC2-6400 800MHZ and not PC2-5300 667MHz.

But I noticed that when I use CPU-Z 1.38, in the “SPD” field, the two DDR-2 modules are recognised as PC2-5300 (333MHZ)?


Where as in the “Memory” field, the frequency and timings are right: 400MHZ, timings: 5,5,5,15


Also, the ASUS P5B-E P965 M/B uses an ICH8R Southbridge chipset, but CPU-Z 1.38 recognizes it as ICH8?


Is there anything wrong with my Bios setting that leads CPU-Z in wrongfully recognizing the memory type & chipset?

Thanks in advance.