E6300 Core Duo and Gigabyte D3 Overclocking

The Old Man

The Old Man

The Old Man

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Joined
14 Apr 2004
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Hi all,
I could do with checking some things on overclocking my new E6300 on a DS3 board with F4E Bios.

Firstly, I have set the CPU to 3Ghz (7x429Mhz FSB), Geil RAM at 800Mhz approx at 2.1v but CPU-Z shows some strange goings on.

The PC booted fine overclocked to 3Ghz at stock voltage (1.325v) but when I tried to play Far Cry it gave me the BSOD. I've since upped the voltage to 1.40000v to see if that will help and also I have just changed the PCI-Express from Auto to 105Mhz as read elsewhere. Apparently on 'Auto', it sets the PCI-E graphics to x1 instead of x16, don't know if this is true but it might account for some lower than expected FPS in COD2.

CPU-z is showing though:

Core Speed: 2568Mhz (1.392v)
Multiplier: x6 (Bios is set to 7)
FSB: 428Mhz (near enough!)
Bus Speed: 1712Mhz

The CPU-Z RAM timings page is showing:

Frequency: 428Mhz
FSB:DRAM at 1:1
5-7-7-20 (despite my RAM being 4-4-4-12!)

Now I went into the BIOS and disabled the EIST as follows:

CPU Enhanced Halt (C1E): Enabled
CPU EIST Function: Disabled
Virtualisation Technology: Enabled

yet the CPU-z is still showing the core speed fluctuating around 2568Mhz not 3Ghz. Have I missed one of these settings? If I start SP2004 dual core version, the jumps to around 45C from 31C and seems okay and CPU-z then confirms I'm running at 3Ghz. When overclocking, are we supposed to have the EIST disabled?

Any advice would be most apprecaited.
 
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disable c1e, its a clockdown tech to save power consumption when idle (messes with multiplier)
Also had same prob myself was wounderign why my chip was clockign down sometimes, disabled c1e and its always @ what i want it to be.
EDIT: it should auto clock to 3ghz when stressing it if enabled tho, if it doesnt it is malfunctioning.... check cpu-z when priming or whatever, or just disable c1e
EDIT2: ah yeah nvm, sry didnt read all of your message , just disable c1e and itll be 3 ghz like u want it to be, always when your pc is running. :)
 
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Thanks Snowdog, will do!

I benchmarked Far Cry already and it went from 89.40 FPS (1.83Ghz) in 1280x1024 to 120.93 FPS using 3Ghz! Must have been the CPU holding back the 7900GTX!
 
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Disabling the C1E seemed to do the trick. Its now running at 457x7=3199Mhz at 1.40v. Using SP2004 Orthos the temperature went from idle 32-34C to 52C. Is this okay? Not sure if it'll do much more. I tried it at 485Mhz FSB*7=3395Mhz but it wouldn't load Windows.
 
Your idle temp is 52c ?! if so, that's worryingly high. If it's under load however, 52c is fine.
My board does the same 428 fsb when set to 429, even shows this in the POST screen for some reason (maybe it only likes even numbers) so I set it to 430 instead.

Have you tried increasing the fsb and gmch voltage to +0.1v and dropping the cpu back to stock? Mine does 3ghz on stock volts and obviously you want as little heat as possible comiong from the cpu.
 
Hi,

No sorry its 52C under full load, both cores with SP2004. Its idling at 32C.
I've dropped it back to 430x7=3010Mhz at 1.40v (to breach that magical 3Ghz barrier) and its still idle at 32C.

I'm not sure what the (G)MCH voltage is, but at the moment its set to normal. Unlike yourself, mine wasn't stable in Far Cry at 3Ghz stock voltage (1.325v) it gave me the BSOD. So I picked 1.40v at random! It might do 3Ghz on a little less I haven't tried it, but this (G)MCH voltage you mentioned I haven't touched at all.

Updated: When far Cry started playing it bombed out to Blue Screen of Death again so I'm trying 1.45v instead of 1.4v now.

Edit: BSOD again at 1.45v. I've dropped it to stock as suggested and added 0.1v to (G)MCH.
 
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1.45v is far too much voltage to be putting through a 65nm chip, you risk long term damage to your processor. I wouldn't go over 1.4v which is still a lot considering it's 1.325v at stock. It's not the processor that's the bottleneck here, all e6300s can do 3ghz stable at stock volts, after that it gets sketchy because people don't have a good enough motherboard or in terms of people with ds3, they haven't configured their ram or motherboard voltages and settings correctly.
 
no probs, it is a magical barrier! If you experience any more instability, I consider adding +0.1v onto the fsb voltage too.

@Violent, 1.45v isn't too high at all, when you consider that most people ran AMD's 90nm cpu's safely at 1.55v (a 10% increase over the stock voltage). But obviously, lower is better.
 
Hi,
Thanks guys. Far Cry let me play as mentioned but only for about 10 mins before it crashed and locked up the machine. I'll try it again still at stock voltage but with 0.2v (G)MCH instead of 0.1v but my instinct tells me that I should stop messing around with voltage settings I don't understand, even if it means going back to a slower FSB!
 
some are using +0.3v on the gcmh (chipset voltage) although I wouldnt do that without active cooling. Have you tried +0.1v on the fsb ?! and maybe increasing the ram also?
 
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Violent-J said:
1.45v is far too much voltage to be putting through a 65nm chip, you risk long term damage to your processor. I wouldn't go over 1.4v which is still a lot considering it's 1.325v at stock. It's not the processor that's the bottleneck here, all e6300s can do 3ghz stable at stock volts, after that it gets sketchy because people don't have a good enough motherboard or in terms of people with ds3, they haven't configured their ram or motherboard voltages and settings correctly.
Click to expand...

Can you tell me what I would need to do on an ASUS P5B Deluxe board to reach 3Ghz with my E6300? When I increase the FSB to 430 (3000/7) the computer will not boot.
 
trojan698 said:
some are using +0.3v on the gcmh (chipset voltage) although I wouldnt do that without active cooling. Have you tried +0.1v on the fsb ?! and maybe increasing the ram also?
Click to expand...

Hi Trojan,
No I haven't tried adjust voltages on the FSB and RAM. The RAM I already have +0.3v addded to get the desired 2.1v. I don't have active cooling on the chipset either and I recall it already gets quite hot accoridng to what I've read here. I thought leaving the RAM at stock was a good idea until I found the max for the CPU. I thought it would do better than the current 3Ghz though, although its a huge overclock already. Its absolutely fine in Windows/Internet etc, just doesn't seem to like gaming for long at stock voltage and +0.1v on the (G)MCH. Can you add volts to the CPU and the chipset at the same time? I'm not sure what the max is for the CPU.

Gra.
 
on mine i run 458 x7 only dif from your is that i found giving the ram to much made my overclock worse and unstable.Mabye thy dropping the voltage to 2.0 on the ram , But up the MCH and FSB to +0.10Volt.
I also sat the Pci-E speed at 100Mhz insted of auto.

Also set your ram at 5.5.5.15 when you thy at thesse speed :)
 
Hi,
I've been seeing how it goes but I'm getting occasional blue screens of death, sometimes something about a kernal and shuting down my PC to prevent damage. This is happening in Windows as much as it is in games.

I haven't overclocked my RAM yet, its default 4-4-4-12 at 2.1v although at the current CPU settings, the BIOS says the RAM is at 860Mhz.

I have the E6300 at 430FSB (3Ghz) stock voltage and +0.1v on the (G)MCH.
I have the speedstep disabled but am considering re-enabling it if it adds stability. I'm confused how most seem to be getting 3Ghz stable with this CPU. Idle temp is 31C.

Any suggestions would be appreciated as the missus is sometimes ringing me at work to complain the PC crashed when she was typing a long email!
 
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The Old Man said:
Hi,
I've been seeing how it goes but I'm getting occasional blue screens of death, sometimes something about a kernal and shuting down my PC to prevent damage. This is happening in Windows as much as it is in games.

I haven't overclocked my RAM yet, its default 4-4-4-12 at 2.1v although at the current CPU settings, the BIOS says the RAM is at 860Mhz.

I have the E6300 at 430FSB (3Ghz) stock voltage and +0.1v on the (G)MCH.
I have the speedstep disabled but am considering re-enabling it if it adds stability. I'm confused how most seem to be getting 3Ghz stable with this CPU. Idle temp is 31C.

Any suggestions would be appreciated as the missus is sometimes ringing me at work to complain the PC crashed when she was typing a long email!
Click to expand...

have you up the voltage on the ram/cpu as the way i see it you are running your ram over (spec400Mhz) you runing 430mhz.

also maybe up the voltage a bit

maybe thy this settings:

Cpu host clock control= Enabled
Cpu host Frequency(mhz) = 458 ~~~~ Set this at 430 to give you 3GHZ~~~~
PCI Express =100
C.I.A.2 =Disabled
System memory multiplier= 2.0
Vdimm voltage +0.3 To give you 2.1Volts
pci-e voltage +0.1
FSB Voltage +0.1
(G)MCH Voltage +0.1

This should get you stable with no BSOD
Rest at stock.
 
Thanks for this. I checked and this was very similar to how I had it but now its:

Cpu host clock control= Enabled
Cpu host Frequency(mhz) = 430
PCI Express =100
C.I.A.2 =Disabled
System memory multiplier= 2.0
Vdimm voltage +0.3 = 2.1 Volts
pci-e voltage +0.1
FSB Voltage +0.1
(G)MCH Voltage +0.1
I have the CPU Voltage at 1.375v at the moment as I assumed it needed a bit more juice.

The weird thing is the RAM though, as you pointed out its overclocking it.
The RAM multiplier is still at 2 yet the ram shows as 860Mhz. However, I ordered this RAM becasue Gibbo started a topic pointing out how good it was and that it overclocked easily. I haven't a clue why its at 860Mhz but Gibbo said it would go higher than this anyway. CPU-Z is still showing the timings as 5-7-7-20, yet I set it in the BIOS to be the default 4-4-4-12.

Screen Capture
 
if you look in your cpu-Z you can see you are running your ram with no divider ( 1:1 ) wich i think is best for C2D
thats why when you set the Cpu host Frequency to 430 you get 860FSB
AS for your ram settings when you in bios hit Ctrl+F1 to bring up ram settings and set them as per spec of your ram
I think you also can turn drown the voltage on the cpu to keep temps drown

this is mine here on a DS4 but same when i had my DS3
http://img178.imageshack.us/my.php?image=desktopww1.jpg

as you can see my cpu only have 1.32 to it
 
Thanks, I put in the ram timings as marked on the RAM's sticker 4-4-4-12 in the BIOS. Strangely CTRL&F1 no longer seems to work in my BIOS vF4e! I'll double check though. With the CPU overclocked and hence the RAM, is it best to change the default RAM settings to something other than 4-4-4-12 or is it okay to leave it that that?

Funny how your RAM timings are showing accurately in CPU-z and not mine! I'll put the CPU voltage back to normal too as when I first switched on today it blue screened immediately Windows started loading.

Edit. Checked my RAM timings and I think they are correct but it was set to Auto, I've now changed it to Manual:

Ram timings screenshot

The RAM timings are now showing correctly in CPU-z (although the SPD still misreads them, the memory tab shows them fine). Possibly this means they were not running at those timings before with Dram Timing Selectable set to Auto, not manual.
 
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