8Gb of 1066 Corsair memory on what motherboard ?

[roderickng]

KK - Firstly, it's good forum manners to post your own thread, rather than resurrect someone else's.

Some things you can try:

MANUALLY set your voltages to the upper range for your RAM. MANUALLY set the timings. If you have a voltage drop control - enable it. Ensure the command rate is set to 2T, and that tRFC ("Refresh to activate delay" ) is 54 or greater.

If that doesn't work, you may need to raise the voltage to your FSB A Couple Steps, but no more. If you have to crank this up, go back and see what else could be at fault.


From Intel:

1.8 V (only) DDR2 SDRAM DIMMs with gold-plated contacts
Unbuffered, single-sided or double-sided DIMMs with the following restriction: Double-sided DIMMs with x16 organization are not supported.
8 GB maximum total system memory using DDR2 667 or DDR2 800 DIMMs
Minimum total system memory: 512 MB
Non-ECC DIMMs
Serial Presence Detect
DDR2 800 or DDR2 667 MHz SDRAM DIMMs
DDR2 667 SIMMs with SPD timings of only 5-5-5 (tCL-tRCD-tRP)
DDR2 800 SIMMs with SPD timings of only 5-5-5 or 6-6-6 (tCL-tRCD-tRP)

http://www.intel.com/support/motherboards/desktop/dg33bu/sb/CS-026592.htm

Thnx for your response.

Crucial is a subsidiary and with employee discount I purchased 3 kits (12gb) for two PC builds for the family. The kits I purchased: CT2KIT25664AA800, is not listed by Intel as 8gb bootable but Crucial was confident that the board would run 8gb despite what Intel said so I decided to take 'their' word for it. So right now am more interested in other chipsets that would boot 8gb without requiring the user to muck around the BIOS.

 

[wacky7]

Thnx for your response.

Crucial is a subsidiary and with employee discount I purchased 3 kits (12gb) for two PC builds for the family. The kits I purchased: CT2KIT25664AA800, is not listed by Intel as 8gb bootable but Crucial was confident that the board would run 8gb despite what Intel said so I decided to take 'their' word for it. So right now am more interested in other chipsets that would boot 8gb without requiring the user to muck around the BIOS.

might be alittle late but mabe recommend something for u for your rams

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131232

 

[Achaios-1328513]

Since a lot of people seem to be wondering whether it's possible to run 8GB of DDR2 memory at 1066 MHz or higher on a P45 socket 775 board, yes it is possible. I will post my settings and specs since this thread is at the top of google search results for the benefit of other users:

MOBO: Asus P5Q Deluxe (Intel P45 Express Socket 775)
Memory: GSKILL TRIDENT, EXTREME PERFORMANCE MEMORY, F2-8800CL5D-4GBPI (Rated @1100MHz)
CPU: Intel Core 2 Extreme QX 9650

BIOS SETTINGS:
=============
Northbridge Voltage: 1.40V
Northbridge GTL Ref: 0.600
RAM Voltage: 1.96
CPU Ratio: 9X429=3843 MHz
Memory timings: 5-5-5-15-52
RAM Frequency: 534MHz (1068 MHz)
FSB-DRAM: 4:5

However, while my MOBO can run 2X2=4GB memory (2 sticks) at 1200 MHz, it is impossible to run 4 sticks of this specific memory (8GB) at or above 1130ish MHz (remember, my memory is rated at 1100MHz).

I tried setting NB voltage to 1.50V which is the absolute maximum for the P45 chips and Memory Voltage 2.3V, which again is considered the max safe voltage for DDR2 memory, and raising the tRFC to over 80 and still had no luck. In the processs, I got several different BSOD's:

1. Stop 07e: SYSTEM THREAD EXCEPTION NOT HANDLED
2. Stop 01e: KMODE EXCEPTION NOT HANDLED
3. Stop 03b: SYSTEM SERVICE EXCEPTION
4. Stop 07f: UNEXPECTED KERNEL MODE TRAP

^^If you get some of these BSOD's, lower your memory overclock. My memory wasn't stable at 1134 MHz but ran just fine at 1068 MHz.

Hope this helps.

(The memory I am using is still available for sale so you will find it if you dig enough. I received it as RMA from GSKILL after one module of my four modules went bad. It is made in December 2012).