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DDR2 Memory problem

K

kwearing88

Junior Member
Hello peeps,

First of all I am new to this forum so hello everyone! I have a problem with my RAM configuration. The motherboard I have can support 1066MHz ... I have DDR2 RAM that can run at 1066MHz ... yet the BIOS optimised settings thinks that the system should run at 800MHz. When I force the system to run at 1066MHz I get system crashes, freezing, instability and blue screen of death even before I boot the O/S. Heres a quick run down of my computer spec:

AMD Phenom 9600 Quad-Core Processor (2.3 GHz)
GeIL 4GB (4x1GB) 1066MHz Black Dragon DDR2 Dual Channel Kit
2x HIS ATI Radeon HD 3870 512mb (crossfired)
MSI K9A2 PLATINUM 790FX (AM2+)
Windows Vista 32-bit Home Premium

Can anyone help? Do you think its a problem with the mobo or the RAM chips?

Thanks,
Kev.
 
Originally posted by: kwearing88
Hello peeps,

First of all I am new to this forum so hello everyone! I have a problem with my RAM configuration. The motherboard I have can support 1066MHz ... I have DDR2 RAM that can run at 1066MHz ... yet the BIOS optimised settings thinks that the system should run at 800MHz. When I force the system to run at 1066MHz I get system crashes, freezing, instability and blue screen of death even before I boot the O/S. Heres a quick run down of my computer spec:

AMD Phenom 9600 Quad-Core Processor (2.3 GHz)
GeIL 4GB (4x1GB) 1066MHz Black Dragon DDR2 Dual Channel Kit
2x HIS ATI Radeon HD 3870 512mb (crossfired)
MSI K9A2 PLATINUM 790FX (AM2+)
Windows Vista 32-bit Home Premium

Can anyone help? Do you think its a problem with the mobo or the RAM chips?

Thanks,
Kev.
Click to expand...

Welcome to Anandtech Forums !


In the BIOS Boost the vDimm to 2.1 volts, and see if that stabilizes it if not increase vDimm to 2.2 or 2.3. GEIL likes voltage to make it stable at higher frequency.
 
[Preface: running ram higher then 1:1 ratio w/ the FSB has little to no benefits]
What step did you take to make the RAM run at 1066? Change divider or the FSB? Do you know what vDIMM your supposed to run at?

GEIL
Series Black Dragon Dual Channel Kit 2GB CL5 1066
Speed DDR2 1066 MHz (PC2 8500)
Capacity 2GB (2 x 1GB)
Cas Latency 5
Timings 5-5-5-15
Memory Type 240-Pin DDR2 SDRAM
Voltage 1.9 V - 2.4 V
ECC No
Layer 8 Layers Custom Black Dragon PCB with LED
Model Name 1GBX2-SKU#GB22GB8500C5DC



 
Ok ...

At work now and just attmpted to force change the voltage of the RAM to 2.1. It is now doing its crash / freeze thing again .. and the way I changed it was changing the ratio from auto (automatically setting it for 1:2 / 800MHz) to 1:2.66 (which sets it at 1066MHz). If the mobo is saying that its optimised settings are at 800MHz then does that mean its likely that it is not going to run the RAM at 1066MHz? And if so is it the mobo or the RAM that is responsible for this?
 
The spec of the RAM is:

- PC6400 1066MHz CAS 5-5-5-15
- 64x8 DDR2 BGA Chips
- 240pin, Non-ECC, Un-buffered DDR2 SDRAM DIMM
- Red LED Light x 2
- 8 Layers Ultra Low Noises Shielded PCB
- Lifetime Warranty
- 2.2V-2.4V Power Supply

So I guess it would be best to stick the RAM up to 2.4V right?

And btw, the motherboard sees that the RAM running at 2.2V or over is a potentially dangerous overclocked setting.
 
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