Intel Core 2 Duo E4600 voltage question

[Black Panther]

You should be able to go higher - I get 3.2Ghz on my E4300 system in specs.

Do lock your pci-e frequency, preferably to 100. Otherwise you'll be oc'in the fsb bus together with your fsb and possibly damage your graphics card.

Try setting the memory at 2.0V Don't go much higher though... if you want to go higher google your RAM brand and check what voltages it supports first!

Btw to get 3.2Ghz I have to put timings at 5-5-5-15 and put ram at 667Mhz so as to get 1:1 ratio with FSB. Otherwise there's no way I can go to 3.2Ghz!
The way my system is now is with RAM at 833Mhz ie at 4:5 FSB ratio. (My RAM is 800Mhz at stock) I keep my rig at 3.0Ghz for day to day running.

 

[dark2099]

If you check my sig/sys specs, I thnk I'm right at the 3.2ghz mark, have the FSB at 266, multi is at 12x, ram I want to know which would be better to run, the 2x2gb patriot (1.8v is stock according to patriot) or 2x1GB corsair(1.9v is what corsair tested them, 5-5-5-18 were the timings), have the cpu volts at 1.4, dimm at +0.2v, FSB at +0.3v, just tried locking the PCI-E frequency at 100 and booting using the above specs and it wouldn't post with them (if it matters I tried that with both the corsair and patriot memory), automatically resets the FSB to stock.

 

[Black Panther]

So after much fiddling around, the max I can seemingly get of an OC is 3ghz-3.06ghz.

Lol apologies I just read your previous post without checking your signature and your system specs...
(Btw I do find it a tad hard to read signature, maybe it's just my eyes or it's a bit too smallish? )

booting using the above specs and it wouldn't post with them (if it matters I tried that with both the corsair and patriot memory), automatically resets the FSB to stock.

What is the settings which are actually working for you and the cpu clock you can achieve booting to windows?

 

[dark2099]

Here are a couple of screenies of CPU-Z. CPU voltage is at 1.4v (haven't tried lower at these settings), DIMM Voltage should be at 2.0v (stock is 1.8v on Patriot's site, have it set to +0.2v in BIOS), and FSB voltage is stock +0.3v (BIOS doesn't read actual voltage that it is at just give options for overvolting). PCI-E Freq is on auto, changing it prevents any booting with overclocking. I've tried booting with 267-270 with voltage increases, all of them cause the BIOS to reset itself.

 

[Black Panther]

Unless you lock pci-e to 100 and pci clock to 33.33 you won't be able to find what's creating the wall in your overclock...

 

[dark2099]

I think it might be the board/chipset to a point I can't decide if I want to hold out a bit and get a DFI X48 board or pick up a GA-P35-DS3L (slightly hesitant on the gigabyte board to because it has a tendency to "blow up").

 

[dark2099]

So I picked up a ASUS P5K ,on BIOS 0902, motherboard today and figured I would post some stuff in here about the settings in the BIOS since things have changed. I have disabled the C1E support and the CPU TM Function, on the old board there wasn't a listing for speedstep, now there is, should I disable this, and how about the Execute Disable Bit, should that be enabled or disabled. Moving on to the more specific OC settings.

CPU Ratio Setting = Auto currently I enter this manually

FSB Strap to North Bridge = Auto currently 200MHZ/266/333/400MHz are the options

FSB Frequency = 266 currently to test if it would boot at the same settings I had on the Gigabyte board, 200-800 are the values got it up to 270

PCI-E Frequency = 100 currently not on auto will leave at this.

DRAM Frequency = speed of ram at current OC, put down to 400 when I set the 266 FSB, in bios now due to OC is read as 533 running at 541 w/ 270 FSB

DRAM Command Rate = Auto Currently 1N and 2N are other options

DRAM Timing Control = Manual right now
CL - 5
RCD - 5
RP - 5
RAS - 15
RAS# to RAS# delay - Auto
REF Cycle Time - Auto
Write Recovery Time - Auto
Write to Read Delay - Auto
Read to PRE Time - Auto

DRAM Static Read Control = Auto currently Enable/Disabled options

Transaction Booster = Auto currently Enabled/Disabled options

CPU Voltage - 1.4v to match before 1.1-1.7v options @ 0.0125 1.45 to get stable through some 3Dmark runs

CPU PLL Voltage - Auto 1.5-1.8v @ 0.10v

FSB Termination Voltage - Auto 1.2v-1.5v@0.1v

DRAM Voltage - 2.0 1.5-2.25 @ 0.05v (says standard is 1.5v but patriot's site says 1.8v is standard) Either at 2.05 or 2.10 in hopes of increasing stability

NB Voltage - 1.4v 1.25-1.7@0.15v I think this is at 1.55 for stability

Clock Over-Charging Voltage - Auto 0.7-1.0@0.1 (standard is 0.8)

Load Line Calibration - Auto enabled/disabled

CPU GTL Voltage Reference - Auto 0.63x/0.61x/0.59x/0.57x

NB GTL Voltage Reference - Auto 0.67x/0.61x

CPU Spread Spectrum - Disabled auto is only other option

PCIE Spread Spectrum - Disabled auto is only other option

Ram is running at 2T according to CPU-Z

 

[dark2099]

Also now that I can run 4 sticks of ram, would It be beneficial to me to use my Corsair XMS sticks.

 

[dark2099]

CPU Ratio Setting = 11.0x

FSB Strap to North Bridge = Auto currently 200MHZ/266/333/400MHz are the options

FSB Frequency = 310

PCI-E Frequency = 100 currently not on auto will leave at this.

DRAM Frequency = 621

DRAM Command Rate = Auto Currently 1N and 2N are other options

DRAM Timing Control = Manual right now (timings for all settings are 5-5-5-15-3-44-5-3-3)
CL - 5
RCD - 5
RP - 5
RAS - 15
RAS# to RAS# delay - Auto
REF Cycle Time - Auto
Write Recovery Time - Auto
Write to Read Delay - Auto
Read to PRE Time - Auto

DRAM Static Read Control = Auto currently Enable/Disabled options

Transaction Booster = Auto currently Enabled/Disabled options

CPU Voltage - 1.5v

CPU PLL Voltage - Auto 1.5-1.8v @ 0.10v

FSB Termination Voltage - Auto 1.2v-1.5v@0.1v

DRAM Voltage - 2.1v

NB Voltage - 1.7

Clock Over-Charging Voltage - Auto 0.7-1.0@0.1 (standard is 0.8)

Load Line Calibration - Auto enabled/disabled

CPU GTL Voltage Reference - Auto 0.63x/0.61x/0.59x/0.57x

NB GTL Voltage Reference - Auto 0.67x/0.61x

CPU Spread Spectrum - Disabled auto is only other option

PCIE Spread Spectrum - Disabled auto is only other option


Using those settings, SuperPi likes to crash and just got a BSOD while running 3Dmark06. Suggestions on changes to help stablise?

 

[dark2099]

Now I am getting pissed. Since I was having some errors at the above settings, I dropped down to the max settings I had on the gigabyte board and orthos still finds errors. Included are a couple shot of CPU-Z, cpu voltage is at 1.4125v, memory is at 2.0v (using the 4X1GB Corsair XMS now), NB voltage is at 1.55V. Pretty much everything else is the same as the above post.

 

[vagxtr]

You should be able to go higher - I get 3.2Ghz on my E4300 system in specs.

Unfortunately every system is story for itself, and old 130nm i945p chipsets really aren't some great ocers when you put c2d chips on it. They were developed for budget preshott-presler chips ... well not so budget but to modest in performance and too pricy for it's offerings.

Try setting the memory at 2.0V Don't go much higher though... if you want to go higher google your RAM brand and check what voltages it supports first!

Even value ram usually can sustain 2.2V memory voltage on 24/7 torture.

Only if manufacturer put some "fixed chips" that cant go further than 1.9V @CL5 like Kingston use to do with its ValueRAM sticks these days, you'll only get instability in system where @1.80V-1.90V was previously rock stable. On the other hand 2.1V for the same memory @CL4 works with full stability and enhaces performance. Or, on the other hand, if you had Gigabyte board that improperly regulate memory (and vcpu) voltages that results in too much fluctuations when you raise memory voltage above 2.05V. And this is in fact reason why memory dies and not voltage itself.

Recommended mobos for these "extreme" memory setings would be DFI, ABiT, MSi. unfortunately MSi usually lock Vcpu on highest recomemnded for cpu by manufacturer and really lacks cpu voltage pump, something like Gigabyte in the days of P4 and athlon xp when they use to raise voltages in percentages 5%-10%-15%.

 

[BrooksyX]

why bump this thread?:shadedshu

 

[vagxtr]

why bump this thread?:shadedshu

i was intersted in old e2x00 e4x00 series default voltages and didnt mean to bump just to contribute

 

[BrooksyX]

i was intersted in old e2x00 e4x00 series default voltages and didnt mean to bump just to contribute

ha okay but thread is over 6 months old...