Gigabyte P35-DQ6 and Memory Timings

dave8624

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I'm attempting to loosen my timings to 4-4-4-12 on my 4gb of Patriot Extreme PC2-6400
ram, which it is rated for at 2.2v. In the bios it doesn't let you directly input 2.2v but has DDR2 overvoltage, so I assume it was at 2v and set it to +.2v but the system won't get past post. Am I doing this incorrectly should I give it more overvoltage? To go past +.4v its starts to blink in red, which I guess means that it not a smart idea? Any help would be appreciated.

- Dave
 

dave8624

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When I try that it won't post so idk what the hell is wrong. I have my cpu stable at 3.33 but even at stock which is 2.66, I can't get to post with my ram at 4-4-4-12. Any other ideas? And also, will I really see a difference with those timings or is it a waste of time.
 

Zorg

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I don't know how well the Patriot works with Gigabyte boards. Do you have 2G or 4G of RAM. Also, run CPUZ and tell me what is in the red boxes in these screen shots, or post screen shots. Post your full specs as well.

2uysojm.jpg
jh8u3t.jpg

 

dave8624

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I have 4 GB of memory. Frequency is at 399.7.

I have 4 sets for the timings table.

200mhz: 3,3,3,6,11 - no command rate - 1.8v
266 mhz: 4,4,4,8,14 - no command rate - 1.8v
400mhz: 5,5,5,12,21 - no command rate - 1.8v
400 mhz: 5,5,5,12,22 - command rate 2T - 2v

 

Zorg

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I have seen some people complaining that 4G gives them problems, I don't remember which chipset. Try to get your timings with 2G. If you can then it is probably northbridge related. Also I have heard that you may need to increase the northbridge/RAM voltages with 4G. I don't have 4G so I really haven't paid attention, but that is the area you need to look. I see in the SPD that it called out 2V not 2.2. Be careful when you increase the voltages to the northbridge and RAM that you don't damage them. Do some research first.

I don't think it's related but you left out your PSU.

Edit: I just looked more closely, your RAM is rated at
400mhz: 5,5,5,12,21 - no command rate - 1.8v
400 mhz: 5,5,5,12,22 - command rate 2T - 2v
There is no guaranty that you will ever achieve 4,4,4,12.