Where do I go now after 2.66 Ghz on a E6400?

[sygyzy]

I have a E6400 and Patriot 667 memory. I know 667 runs at 333Mhz so I figure the safest bet would be 1:1 so I bumped the FSB to 333mz, left the multiplier at 8 and I now have a 2.66Ghz system. 4-4-4-12 timings. No increase in voltage to either the CPU or memory.

What's the next logical safe spot? I don't entirely understand dividers so please be clear. Can you have any ratio between FSB: DRAM you want?

 

[theteamaqua]

if it can do DDR2667 4-4-4-12, with monior vdimm added it should at least do DDR2800 5-5-5-15

but yeah do 1:1 fsb : dram, as u cant have lower dram than fsb

 

[n7]

Originally posted by: sygyzy
I have a E6400 and Patriot 667 memory. I know 667 runs at 333Mhz so I figure the safest bet would be 1:1 so I bumped the FSB to 333mz, left the multiplier at 8 and I now have a 2.66Ghz system. 4-4-4-12 timings. No increase in voltage to either the CPU or memory.

What's the next logical safe spot? I don't entirely understand dividers so please be clear. Can you have any ratio between FSB: DRAM you want?

Hard to say since you don't list any system specs or even have a rigs link.

Unless you have an nF680i mobo, you usually have 1:1, 4:5, 2:3, etc. as options.

In your case, since you have slower RAM, you'll want to leave things 1:1, & increase FSB from there.

 

[lopri]

Next logical safe spot is 400FSB. If it's not stable enough there just give 0.05~0.10V more voltages to CPU/memory and you should be set.

 

[Furen]

Just make sure you are actually running 1:1 (which means that you set your DRAM speed setting to 533MHz). You can have many different ratios and, if your ram can't handle much in the way of overclocking, you may need to actually run at DDR2 400 or something.

 

[sygyzy]

Sorry, here are my specs:

Intel Core 2 Duo E6400 Conroe 2.13GHz
Gigabyte GA-965P-DS3
Patriot 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 667 (PC2 5300)
Sapphire 1900XT PCI

I am a little confused about how you can keep a 1:1 ratio if you raise FSB? I thought it was a ratio between FSBRAM. So if my DRAM is 333, I can't go any higher than 333 FSB right? Doesn't that mean I am stuck now?

 

[n7]

Your RAM should reach 800 (400) with no trouble.

Set your timings loose for now.
5-5-5-15 for example.

Then bump up FSB, & along the way, you'll likely have to bump vdimm & vcore.

 

[sygyzy]

Since I don't want to bump either voltage unnecessarily. what's a good standard increment to go by? I know there are no hard fast rules but you've been really helpful.

 

[n7]

Anything 1.4V or lower is more than safe with stock cooler; with better cooling, you can go higher.

For RAM, it kinda depends what IC, but let's say 2 steps above rated vdimm to be safe.

 

[sygyzy]

So since my stock ram is 1.8, I am assuming 0.1 increments so 2.0? Or should I go hundreths - 0.01?

I have a Scythe Ninja so maybe I can go higher. It's hard to tell what the stock voltage for the E6400. Monitoring programs shows that it fluctuates. What increments should I use? Should I go straight to 1.4?