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Multipliers and RAM timings (p5b/e6600)

post #1 of 7
Thread Starter 
So I had my e6600 cool and stable at 3.2ghz (356x9), but I read that I could get my RAM to perform better if I lowered the multi to 8 and pushed it up to 400. I achieve the same clock on the cpu, but my ram is now at a faster speed.

My questions about this are threefold:
First, is there any disadvantage to running the cpu at a lower multi?
Second, my RAM timings right now are 4-4-4-12, is there any way to tighten these up in the BIOS? I've found where to change the numbers, but I don't know what to change them to do be decently stable (are there any ratios within those timings that I should know about?).
Thirdly, if the above is not true, could I lower my multi to 7, and up it to 457 fsb (thus getting the same 3.2ghz clock speed) and then have my RAM sitting at 457? Would that make a considerable difference in terms of speed?

Thanks much!
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Duo E6600 ASUS P5B Deluxe 7600GT 2GB Corsair XMS2 DDR2 
Hard DriveOSMonitorKeyboard
160GB WD SATA 3GB/s 16MB Windows XP Pro 19" NEC 90GX2 Logitech Elite 
PowerCaseMouse
550W Antec Lian Li Logitech MX1000 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Duo E6600 ASUS P5B Deluxe 7600GT 2GB Corsair XMS2 DDR2 
Hard DriveOSMonitorKeyboard
160GB WD SATA 3GB/s 16MB Windows XP Pro 19" NEC 90GX2 Logitech Elite 
PowerCaseMouse
550W Antec Lian Li Logitech MX1000 
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post #2 of 7
Thread Starter 
I just tried the 7 multi thing and it couldn't even make it out of the BIOS with out crashing..
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Duo E6600 ASUS P5B Deluxe 7600GT 2GB Corsair XMS2 DDR2 
Hard DriveOSMonitorKeyboard
160GB WD SATA 3GB/s 16MB Windows XP Pro 19" NEC 90GX2 Logitech Elite 
PowerCaseMouse
550W Antec Lian Li Logitech MX1000 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Duo E6600 ASUS P5B Deluxe 7600GT 2GB Corsair XMS2 DDR2 
Hard DriveOSMonitorKeyboard
160GB WD SATA 3GB/s 16MB Windows XP Pro 19" NEC 90GX2 Logitech Elite 
PowerCaseMouse
550W Antec Lian Li Logitech MX1000 
  hide details  
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post #3 of 7


What is the voltage to your RAM?
Where you running at 1:1 ?
What is your main objective in your OC?

Flux
(13 items)
 
  
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i7 2600K GA-P67A-UD7 GTX 580 2 x 2GB Corsair 
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Q-Pad 
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Flux
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600K GA-P67A-UD7 GTX 580 2 x 2GB Corsair 
Hard DriveOptical DriveOSMonitor
C300 (OS), Velociraptor (storage) Lite-On W7 64-bit Pro Samsung 275T 
KeyboardPowerCaseMouse
Black Widow Ult. Silverstone DA750 Lian Li T60 R.A.T. 7 
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post #4 of 7
Thread Starter 
Voltage is 2.0 for the RAM (it was stable, and still appears to be stable).
Yes, 1:1 all the time.
Main objective is faster .. I mostly do gaming and some 3d/2d graphics.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Duo E6600 ASUS P5B Deluxe 7600GT 2GB Corsair XMS2 DDR2 
Hard DriveOSMonitorKeyboard
160GB WD SATA 3GB/s 16MB Windows XP Pro 19" NEC 90GX2 Logitech Elite 
PowerCaseMouse
550W Antec Lian Li Logitech MX1000 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Duo E6600 ASUS P5B Deluxe 7600GT 2GB Corsair XMS2 DDR2 
Hard DriveOSMonitorKeyboard
160GB WD SATA 3GB/s 16MB Windows XP Pro 19" NEC 90GX2 Logitech Elite 
PowerCaseMouse
550W Antec Lian Li Logitech MX1000 
  hide details  
Reply
post #5 of 7
RAM voltage could be a little higher....say 2.1 - 2.15

What BIOS version do you have?

My reason for OC'ing is the same as yours. I like benchmarking as it give a reference point, but ultimately I am after higher FPS and more eye-candy.

In addition, I used the CNPS9500 for awhile, but switched to a Noctua 120. The CNPS9500 is a very good cooler, but simply did not provide the surface area and airflow that I was looking for.
Is that a possiblility for you? Any of the tower coolers (Tuniq, Scythe, Noctua...etc.) are head and shoulders above the rest - they are massive though.

I'm not experienced enough to comment solidly on your systems balance, but it would seem that your VGA card is your bottleneck. Maybe focus on getting more performance there before taking the CPU further..?
Flux
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600K GA-P67A-UD7 GTX 580 2 x 2GB Corsair 
Hard DriveOptical DriveOSMonitor
C300 (OS), Velociraptor (storage) Lite-On W7 64-bit Pro Samsung 275T 
KeyboardPowerCaseMouse
Black Widow Ult. Silverstone DA750 Lian Li T60 R.A.T. 7 
Mouse Pad
Q-Pad 
  hide details  
Reply
Flux
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600K GA-P67A-UD7 GTX 580 2 x 2GB Corsair 
Hard DriveOptical DriveOSMonitor
C300 (OS), Velociraptor (storage) Lite-On W7 64-bit Pro Samsung 275T 
KeyboardPowerCaseMouse
Black Widow Ult. Silverstone DA750 Lian Li T60 R.A.T. 7 
Mouse Pad
Q-Pad 
  hide details  
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post #6 of 7
Quote:
Originally Posted by mcb
So I had my e6600 cool and stable at 3.2ghz (356x9), but I read that I could get my RAM to perform better if I lowered the multi to 8 and pushed it up to 400. I achieve the same clock on the cpu, but my ram is now at a faster speed.

My questions about this are threefold:
First, is there any disadvantage to running the cpu at a lower multi?
Second, my RAM timings right now are 4-4-4-12, is there any way to tighten these up in the BIOS? I've found where to change the numbers, but I don't know what to change them to do be decently stable (are there any ratios within those timings that I should know about?).
Thirdly, if the above is not true, could I lower my multi to 7, and up it to 457 fsb (thus getting the same 3.2ghz clock speed) and then have my RAM sitting at 457? Would that make a considerable difference in terms of speed?

Thanks much!
Read the Overclock guides on this website if you would like to improve your system's settings/performance. What you need to do is find your cpu max,fsb max,ram max individually. Only then can you know what your final system settings should be. Btw, what week is your cpu?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel 2500k Asus P8P67 Galaxy GTX580 8GB G Skill Ripjaws 
Hard DriveOSMonitorKeyboard
Intel 80 gb SSD, Raptor 150 Windows 7 Home Premium 24" Samsung LCD Saitek Eclipse 
PowerCaseMouse
PCP&C 750W Antec P180 Logitech MX-510 blue 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel 2500k Asus P8P67 Galaxy GTX580 8GB G Skill Ripjaws 
Hard DriveOSMonitorKeyboard
Intel 80 gb SSD, Raptor 150 Windows 7 Home Premium 24" Samsung LCD Saitek Eclipse 
PowerCaseMouse
PCP&C 750W Antec P180 Logitech MX-510 blue 
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post #7 of 7
There is little performance improvement in tightening your RAM timings; from my experience at least.. and lowering your multiplier just you get your RAMs to run higher is pointless. What I would do is to adjust the ratio higher than 1:1 so you can run your RAMs at higher frequency without overclocking your processor. What kind of rams do you have? I think to get it to run with tight timing and higher clock you need at least 2.2v, and if you have a fan over them you can even try 2.25v. The timing I suggest you to try is 5-5-5-10, or even 4-4-4-8. Try a program called "MemSet", it allows you to adjust your timing in Windows.
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