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Timing help please

post #1 of 5
Thread Starter 
I am new to the whole RAM timing. I know there are some bigtime RAM guys out here so I could use some help!

I have 2 GB total RAM:

1GB DDR2-533 Kingston
1GB DRR2-533 Transcend

Neither of these are probably real high end OCing memory, but I hope to maybe get some better timings out of them.

My current timings are 4-4-4-12. When I set the BIOS to Auto- Aggressive, it changes the timings to 2-2.5-2-3, when I restart the computer I get nothing... I have to clear the CMOS.

Im my BIOS I have the option of enabling CPC Override. Should I do this? Also should I increase my voltage? Will that help with the RAM timings?

What timings should I try, and how should I go about peaking out the timings?
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post #2 of 5
What are the stock timings for each type of RAM you have? What speed if your processor currently running at? 2-2.5-2-3 is way too aggressive for DDR2, and I've never seen the last timing be below 5 on any RAM. If you have the option to set timings manually, I would suggest going that route.

Just a little thing - your CPU spec shows 800FBS; it should read 800 MHz FSB.
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post #3 of 5
Thread Starter 
The settings on BIOS originally were 4-4-4-12, so I think that is probably their stock timings. My computer is running 800Mhz and 3.4Ghz because I read that when adjusting the memory you should have you computer back at stock. On the OC, my system is running at 3.9Ghz and the FSB is 867Mhz
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Intel 520 256GB SATA DVD Burner Windows 7 64 bit Deal U2410 
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post #4 of 5
On each individual stick of ram, there is a tiny IC chip that has timing/speed tables suggested by the manufacturer. In order to have your machine read these, you need to set the BIOS option to SPD (Serial Presence Detect). However, since you're using mixed ram sticks, you need to make sure that you put the slowest ram stick into the first ram slot because that is the only table that will be read. If you have the faster sticks in the first slot, it will set your slower ram to settings that it can't handle. Also, the "aggressive" setting in your BIOS is nothing more than a guess as to what the manufacturer would tweak your machine to having no idea what equipment you're using. The odds of this being optimal are slim to none. If I were you, I'd set these manually through testing, but keep in mind that your speed/timings are going to have to coincide with your slowest sticks. Lastly, if both brands use different voltages, you might not get very far trying to OC. Before you begin anything, I'd look up the recommended voltages and see how far apart the 2 brands are.
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post #5 of 5
Thread Starter 
Rgr, I will report that info when I get home from school.
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CPUMotherboardGraphicsRAM
Core i7 2500k ASRock P67 Extreme4 Gen 3 AMD 7970 16GB DDR3 
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Intel 520 256GB SATA DVD Burner Windows 7 64 bit Deal U2410 
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