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E6400 overclocking

post #1 of 6
Thread Starter 
Hey guys, I'm overclocking c2d cpu for the first time now... I was just wondering how far i could push it with KINGMAX 1Gb 667mhz ram . And also i read somewhere that if i set the cpu voltages at auto then they will adjust themselves without me having to change them. I never oc cpu before so I'm not sure.
Upgrading to dual channel soon 1gb+1gb should i wait with oc till then?
Thx in advance
13/02/07 system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2 Duo E6400 GIGABYTE GA-965P-DS3 PowerColor Radeon HD4870 KingMAX 2GB DDR2 Dual Channel 
Hard DriveOSMonitorPower
80GB Seagate + 320GB 7200.10 XP SP2 samsung 226bw 22" ThermalTake 850W 
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13/02/07 system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2 Duo E6400 GIGABYTE GA-965P-DS3 PowerColor Radeon HD4870 KingMAX 2GB DDR2 Dual Channel 
Hard DriveOSMonitorPower
80GB Seagate + 320GB 7200.10 XP SP2 samsung 226bw 22" ThermalTake 850W 
CaseMouse
Thermal Take V200A XASER Logitech MX-518 
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post #2 of 6
Ah. A similar setup as mine. Do you know your way in BIOs? If no, start up your computer and keep pressing the DEL button.

Your RAM will limit you to overclock because it's a 667Mhz RAM.

It is recommended that you manually set your own vcore/CPU voltage. default is 1.350 vcore and the top in our boards are 2.0vcore, so be careful about that.

C1E in Advance options will reduce your clock when you're idle. It's a power saving feature and I like to leave mine on. So, if you don't like your multiplier dropping, just turn C1E off.

When you're in BIOs, go into MIT (Bottom left option). You will see the following. NOTE that you will not have the RAM timing feature. I will tell you that later.


From the picture, ENABLE CPU Clock Host Control. Set PCI Express Frequency to 100Mhz.

Now, head to the bottom and you will see the voltage control.


Make System Voltage Control from Auto to Manual. Set CPU Voltage Control to 1.3 vcore. DO NOT set it to 2.0vcore like in that picture.

From here, go back up and you'll see CPU Host Frquency: 266. Since this is your first time overclocking, Change 266 to 270. Head back out, save your settings and boot onto desktop.

When you raise the CPU Host Frequency, your RAM speed will go higher and at a point, it will not start your PC. You can divide by using the System Memory Multiplier.

I hope I didn't leave anything out.

How to enable RAM timings: Before you enter MIT, press CTRL + F1.

If your computer does not start up after overclocking everything. Go look at your motherboard. Find a circular silver battery and remove it. Let your motherboard sit there without the battery for a minute. After thatm put the battery back on and boot.

With a DDR2 800 RAM, I can hit 3.0Ghz with 1.28 vcore. So, it is possible to have a higher Ghz and lower vcore. My RAM is divided by 2.0.
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Main
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post #3 of 6
Thread Starter 
How do I know what DRAM timings should i use on my system?
Wht does the system memory multiplier do?
13/02/07 system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2 Duo E6400 GIGABYTE GA-965P-DS3 PowerColor Radeon HD4870 KingMAX 2GB DDR2 Dual Channel 
Hard DriveOSMonitorPower
80GB Seagate + 320GB 7200.10 XP SP2 samsung 226bw 22" ThermalTake 850W 
CaseMouse
Thermal Take V200A XASER Logitech MX-518 
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13/02/07 system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2 Duo E6400 GIGABYTE GA-965P-DS3 PowerColor Radeon HD4870 KingMAX 2GB DDR2 Dual Channel 
Hard DriveOSMonitorPower
80GB Seagate + 320GB 7200.10 XP SP2 samsung 226bw 22" ThermalTake 850W 
CaseMouse
Thermal Take V200A XASER Logitech MX-518 
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post #4 of 6
Quote:
Originally Posted by blaze_mk View Post
How do I know what DRAM timings should i use on my system?
Wht does the system memory multiplier do?
1. I can't help you with RAM timings, I don't know much about them.
2. Your multiplier and your CPU Host Frequency will consider your GHz or CPU speed. By default, you're at 8 multiplier and 266 CPU Host Frequency on an E6400. Leave the multiplier as it is and raise the CPU Host Frequency. Raise 3-5Mhz at a time and see if you can boot onto Desktop. I can hit 3.0Ghz with 1.28 vcore. So, you may be able to lower your voltage.

EDIT:

Temp monitors:
TAT
CoreTemp

CPU Stability checker:
Orthos
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Main
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CPUMotherboardGraphicsRAM
Core i5 3570K ASRock Z77 Pro3 Galaxy 560Ti G.Skills DDR3 
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WD Cavier 250GB + SimpleTech 320GB EXHDD Windows 7 x64 Samsung 19" SyncMaster 940BW OCZ 600w GameXStream 
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post #5 of 6
Thread Starter 
Alright, ill start oc when i figure out the timings... and i think cpu clock ratio is disabled i cant change it anyways.
Hitting 3ghz would be great.
ps: if I remove the battery on my mobo everything is set to default?
13/02/07 system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2 Duo E6400 GIGABYTE GA-965P-DS3 PowerColor Radeon HD4870 KingMAX 2GB DDR2 Dual Channel 
Hard DriveOSMonitorPower
80GB Seagate + 320GB 7200.10 XP SP2 samsung 226bw 22" ThermalTake 850W 
CaseMouse
Thermal Take V200A XASER Logitech MX-518 
  hide details  
Reply
13/02/07 system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2 Duo E6400 GIGABYTE GA-965P-DS3 PowerColor Radeon HD4870 KingMAX 2GB DDR2 Dual Channel 
Hard DriveOSMonitorPower
80GB Seagate + 320GB 7200.10 XP SP2 samsung 226bw 22" ThermalTake 850W 
CaseMouse
Thermal Take V200A XASER Logitech MX-518 
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Reply
post #6 of 6
You can use cpu-z or everest to find your ram timings, and hopefully they will be low enough that u can loosen them for oc purposes
It's a computer
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e6300 @ 2.1Ghz biostar 945p-a7a bfg 7900gs 1x1024MB, 2x512 MB ddr2 667 
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WD 160GB SATA2 +40gig ide philips combo drive Windows xp pro sp2 21" trinitron crt 
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It's a computer
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 @ 2.1Ghz biostar 945p-a7a bfg 7900gs 1x1024MB, 2x512 MB ddr2 667 
Hard DriveOptical DriveOSMonitor
WD 160GB SATA2 +40gig ide philips combo drive Windows xp pro sp2 21" trinitron crt 
PowerCaseMouse
ultra 500watt coolermaster centurion5 razer diamondback 
  hide details  
Reply
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