Hey guys first off I want to let you guys know something that I tried and worked for me. When I was trying different settings to OC my CPU higher than 3.0GHz and my BIOS failed and had to recover it using the Asus CD, because it had a block BIOS thing. That took me to a really old version of BIOS, so I decided to BIOS update my motherboard to the newer one where the update failed, and I wasn't able to do anything. Like the computer would turn on and then just black screen. So what I did was took a BIOS chip from another computer put it into my motherboard then turn the computer on and then turn it back off and put my old BIOS chip in, which was messed up and it fixed it!!! Just wanted to let you guys know it works because I searched so hard over the net and couldn't find a solution that states it that way and was about to get another BIOS chip from Asus.
OK, lets start with my OC question, first of my specs:
Asus P5W DH-Deluxe Motherboard
Intel Core2Duo E6600 currently at 3.0GHz with Vcore 1.3000v
4GB of OCZ Reaper Edition RAM
Zotac 9800 GTX Graphics card
now currently I tried these settings that got me to the point where the windows loading thing will come up and then just give me blue screen and restart, here are the settings:
Vcore = 1.5250v (I can choose up to 1.7000v in BIOS)
FSB Termination Voltage = 1.30 (Options in BIOS: 1.20, 1.30, 1.40, and 1.50)
MCH Chipset Voltage = 1.65 (Options in BIOS: 1.55, 1.65, 1.75, and 1.85)
ICH Chipset Voltage = 1.05 (Options in BIOS: 1.05 and 1.20)
I used those settings and got my processor to post at 3.60GHz, but like I said above it can only get up to the loading bars then blue screen and restarts, can anyone tell me if I need to give it more Vcore voltage or need to change the other voltages.
I guess no one knows the answer. All I wanted to know is if my Northbridge volts are too high or they are fine, and if I should try upping my vcore more or not.
Alright, with 1.300v vcore 3.0GHz that I have right now I ran 8 hours straight without any problem also I only changed vcore nothing else, but with taking it to 3.6ghz vcore at 1.525v it doesn't go ne farther than the vista loading bars. I was guessing I need to give it more vcore but not sure if thats safe or not. Also I got pc26400 800mhz.
The thing is when I'm using 9x400 = 3600 the RAM is at 800MHz which is right at the specs. I know when I OC the FSB the RAM also OC that's why I make sure to change the RAM settings to stay in or under specs. I think I might of put this a little wrong which makes it sound wrong.
I have my E6600 @ 3.0GHz stable with vCore 1.3000v. The thing is when I go 3.6GHz using these settings:
Quote :
Vcore = 1.5250v (I can choose up to 1.7000v in BIOS)
FSB Termination Voltage = 1.30 (Options in BIOS: 1.20, 1.30, 1.40, and 1.50)
MCH Chipset Voltage = 1.65 (Options in BIOS: 1.55, 1.65, 1.75, and 1.85)
ICH Chipset Voltage = 1.05 (Options in BIOS: 1.05 and 1.20)
That is when I'm having trouble getting it to load to windows, if I'm not wrong I think the better way would be to lower the MCH Volt. back to 1.55 and raising the vcore from 1.525 to 1.6v. What you guys think? I just don't wanna raise the Vcore by a lot if there is any other way to make it work at 1.525v.
Small increases and only up voltages when needed will tell you exactly what is going on and what needs to be increased. Making big jumps like that is just a crap shoot.
Take a little time and bring it up slowly and youll know whats going on.
What kind of heatsink do you have? If you are going to try to push an E6600 to 3.6 GHz., you need a good HSF.
You also need to pay attention to the airflow in your case.
And RJR is correct. A jump from 2.4 GHz. straight to 3.0 GHz. is safe with an E6600. You may even be able to do it without increasing vcore. After 3.0 GHz., stay with no more than 100 KHz. steps.
And not all E6600's will run at 3.6 GHz. with stability.
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Overclocking since 1978 - Z80 (TRS-80) from 1.77 MHz to 2.01 MHz
The thing is when I'm using 9x400 = 3600 the RAM is at 800MHz which is right at the specs. I know when I OC the FSB the RAM also OC that's why I make sure to change the RAM settings to stay in or under specs. I think I might of put this a little wrong which makes it sound wrong.
I have my E6600 @ 3.0GHz stable with vCore 1.3000v. The thing is when I go 3.6GHz using these settings:
Quote :
Vcore = 1.5250v (I can choose up to 1.7000v in BIOS)
FSB Termination Voltage = 1.30 (Options in BIOS: 1.20, 1.30, 1.40, and 1.50)
MCH Chipset Voltage = 1.65 (Options in BIOS: 1.55, 1.65, 1.75, and 1.85)
ICH Chipset Voltage = 1.05 (Options in BIOS: 1.05 and 1.20)
That is when I'm having trouble getting it to load to windows, if I'm not wrong I think the better way would be to lower the MCH Volt. back to 1.55 and raising the vcore from 1.525 to 1.6v. What you guys think? I just don't wanna raise the Vcore by a lot if there is any other way to make it work at 1.525v.
call me conservative, but i think you should take your chip down to 3.2ghz, and if you want, work your way up. the voltages for your chip is only recommended up to 1.5v, taking it to 1.6v is just nuts imo. you also have to remember, the voltage increases in relation to speed, is EXPONENTIAL, not linear. the higher you want to take your chip, be prepared to crank more juice into it. i agree w/the poster above, you don't just take 3.0->3.6. work your way up to 3.2->3.4 or so...you better have some good cooling in your case if you're gonna take your MCH voltage up higher...if it gets too hot, you might run into some MCH probs such as not being able to load into windows b/c temps are too high.
Just so you know, at that voltage, don't expect the processor to last long. Due to much accelerated electro-migration, because of the high voltage, it'll die a premature death even if kept cool.
Ye, I figured I should keep it at 3.0GHz @ 1.385 because someone told me there is not big real life difference notice between 3.4 and 3.6GHz. Thanks for all your help guys .
Message edited by gotrice on 01-22-2009 at 08:23:25 AM
Much better, anything below 1.5v is ok, as long as heat isn't an issue. I prefer to stay below 1.4v, i'm currently running 3.2ghz 8xmulti at 1.33v idle on a Q6600.
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