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Confused about C2D and DDR2 800 OC'ing

post #1 of 7
Thread Starter 
Ram is running at 400mhz
E6700 C2D at 10 x 266mhz


Soo is there anyway to get a 1:1 without telling the puter I have ddr2 533?

Could I somehow bump up the cpu fsb to 400mhz? Then it would be running at 4ghz with a 1:1 if thats possible.

Also what advantages would having an unlocked multiplier give me? thanks
post #2 of 7
When you increase the FSB, the RAM frequency will go up with it. Thus, if you increase the FSB based on the current settings, the effective RAM frequency will be 400/266 * 400 = 600 (or DDR2 1200) speeds. You gotta have pretty darn good RAM to maintain that speed.

And if you don't overclock, run the RAM as fast as you can. No reason to set it 1:1.

If you overclock, then yes, put the RAM on 1:1 (by telling it to run at DDR2 533 speeds, or 266MHz), and then increase the FSB. In that case, when your FSB hits 400MHz, then the RAM will also run at 400MHz (DDR2 800), still at the 1:1 divider.

In some cases, it can be beneficial to decrease the CPU multi, so you can run a higher FSB .
    
CPUMotherboardGraphicsRAM
E8400 @ 3.8 GHz DFI LANPARTY DK X38-T2R eVGA 8400GS 2GB Mushkin DDR2 800 (single stick) 
Hard DriveOptical DriveOSMonitor
250GB WD SATA None Windows XP Pro 32-bit HP Pavilion f1703 
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N/A Corsair HX520 Coolermaster Cavalier N/A 
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CPUMotherboardGraphicsRAM
E8400 @ 3.8 GHz DFI LANPARTY DK X38-T2R eVGA 8400GS 2GB Mushkin DDR2 800 (single stick) 
Hard DriveOptical DriveOSMonitor
250GB WD SATA None Windows XP Pro 32-bit HP Pavilion f1703 
KeyboardPowerCaseMouse
N/A Corsair HX520 Coolermaster Cavalier N/A 
Mouse Pad
N/A 
  hide details  
Reply
post #3 of 7
You RAM is running at the right speed (DDR -> 400Mhz X 2 = 800Mhz).

What motherboard are you going for with your Core 2 Duo?
post #4 of 7
Thread Starter 
Still debating between the ABIT AW9D and the ASUS P5B Deluxe . I'm leaning towards the Asus though since it seems a lot more people have that mobo. The wife won't let me buy anything until after xmas , so i have some time to think about it

Thanks Chozart that clears it all up for me.
post #5 of 7
you could drop the multi down if you arnt overclocking to the point were the fsb is as nere to 400mhz as you can get it that way your in a 1:1 with ur cpu
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 ab9 pro 7900gto 2gb corshair 800mhz 
Hard DriveOSMonitorPower
16mb wdc 160 gb win xp pro sp2 17" crt NOC 580w hiper 
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nzxt apollo dimondback sharkoon 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 ab9 pro 7900gto 2gb corshair 800mhz 
Hard DriveOSMonitorPower
16mb wdc 160 gb win xp pro sp2 17" crt NOC 580w hiper 
CaseMouseMouse Pad
nzxt apollo dimondback sharkoon 
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post #6 of 7
Thread Starter 
Ok I went with the asus p5b deluxe. I doubt anyone will get it for me for xmas
post #7 of 7
Thread Starter 
Well I was bored yesteday and threw my e6700 and p5b in my old case. I have an antec 900 on the way, so it will be interesting to see if the temps improve.

Both cores idling around 30 and full load around 50. I'll probably wait until I get the 900 to start ocing...maybe. I',m sure I'll start asking more questions soon.
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