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New board, RAM won't run at rated timings

S

sjandrewbsme

Senior member
As the header says, my Ballistix will only POST @ FSB 450x2. I'm running @ 2.2 Volts and have manually changed the timings to 5-5-5-15-2T.

Any ideas why this is happening? On my old board (same board, P5N32-E that eventually died and was replaced via RMA with this new identical replacement) it would run fine @ DDR2-1000. Now, it won't even POST. And, it won't complete ORTHOS blend @ 4-4-4-12-2T. I got this RAM because of the good timings - should I send it back?

The only other thing I changed was some of the airflow in my case. I used to have (2) 80mm exhaust fans near the I/O shield on the +12V rail. I switched these to the +5V rail. The inside of the case still has pretty decent cooling (4 total case fans not including the power supply or CPU fan).

Should I bump up the voltage a little more? I read about some people using 2.3 volts.
 
It's possible you received a board with a different BIOS revision number, or board revision number. These can greatly affect overclocking ability
 
BIOS was 0602, I'm on the latest version (same as the previous board).

I suppose it's not that big of a deal. It just seems like I spent a lot of money for RAM that has absolutely no headroom and barely (in this case doesn't) runs at its rated speed.
 
Originally posted by: sjandrewbsme
BIOS was 0602, I'm on the latest version (same as the previous board).

I suppose it's not that big of a deal. It just seems like I spent a lot of money for RAM that has absolutely no headroom and barely (in this case doesn't) runs at its rated speed.
Click to expand...

You got a new board, you don't know if its the RAM's fault that your system isn't posting at those speeds or the new board. Until you find ram that CAN post at those speeds...the ram could be perfectly fine.
 
I'm using E6600 overclocked to 3.375 GHz. This is the same exact setup I had before.

I have no idea the divider I'm using. I'm manually setting the FSB of the RAM @ 1000 (along with manual 5-5-5-15-2T settings) and the FSB of the CPU @ 1500. This won't POST. When I change it back to 900/1500 it works and passes all my tests. The divider is picked automatically based upon the FSB settings I input. I'm running unlinked.

I'm going to check the airflow one more time. If taking off the side of my case and shooting a fan in there solves the problem then I know what's going on.

On a side note: isn't it generally faster to run your RAM with lower bandwidth and faster timings anyway? In other words: wouldn't this SAME RAM @ DDR2800 4-3-3-10 be faster than DDR21000 5-5-5-15? If so, maybe I'm going about this in the wrong way anyway....
 
On a side note: isn't it generally faster to run your RAM with lower bandwidth and faster timings anyway? In other words: wouldn't this SAME RAM @ DDR2800 4-3-3-10 be faster than DDR21000 5-5-5-15? If so, maybe I'm going about this in the wrong way anyway....
Click to expand...

Its hard to say with C2D. Im no expert but generaly C2D loves bandwith so the looser timings might not give you any noticable performance loss.

The ram is overclocked by 200mz. giving the ram a little more voltage might help.
 
My DDR2 1000 is not overclocked - it won't post @ DDR2 1000. I've manually set the timings (5-5-5-15) and voltage (2.2) at bone stock settings and it won't POST.

I'm reluctant to increase the voltage....I don't want anything other than the stock performance.
 
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