Biostar i45 overclocking

[ram3500v8]

I just finished my new rig (first intel build) and need help overclocking my e8400.

I have a biostar Tpower I45 mobo, which has .008 vdroop(if my calculations are correct.)

So I disabled speedstep and C1E so my cpu is running at a steady clock, and upped the multiplier to 400.
so my problem is, when i overclock the ram, and cpu voltages go up when on auto. But the smallest vcore increment .025 so I can't keep the cpu at stock voltages(1.186v I believe) while overclocking.

Any help would be much apreciated thanks.

 

[darckeen]

sound like you are oc'ing in auto mode, switch to manual mode to control the voltages independently.

check this http://www.biostar-usa.com/app/en-us/event/tpi45oc/index.htm

 

[ram3500v8]

I have it in manual overclock mode.

when u set a voltage it adds to the stock voltage right?

this is probably not the section, but my xigmatek hdt-s1283, the heatpipes barely seem warm even though my temps are pretty good

 

[xech]

im noob to overclocking, but would u recommend me to get the i45 mb for either a e8400/8500?

 

[darckeen]

Yes those numbers are the amount over stock voltage. My guess is that the bios wont let you go to 400fsb with stock voltage because it is not a stock bus speed. You could confirm this by resetting your bus speed to 333 and see if your are allowed to use stock voltage or under volt then.

 

[dirtmountain]

An extreme example, but this thread has numerous links that might help.

http://forums.anandtech.com/messageview.aspx?catid=29&threadid=2214623&enterthread=y

 

[ram3500v8]

I have the option to undervolt all the time but when I undervolt by the smallest imcrement @3.6ghz it can't pass 1 min on orthos stress test.

when i bring it back down to stock clock and put it in auto voltage It runs at what I believe is stock voltage 1.184v. Then I try to overclock in auto voltage mode and it shoots to voltage up to like 1.228 volts.

 

[ram3500v8]

There are other settings like reference voltage could someone tell me what those do. thanks

 

[darckeen]

you can go to 1.45v max w/o damaging the processor but should probably aim for 1.40v max to be safe. make sure to keep the cpu temp under 70C under full load. OC'ing an at not a science but you can read up on varrious faqs on the web to get started.

this one is a pretty good place to start: http://forums.hexus.net/hexus-hardware/103676-c2d-overclocking-guide-beginners.html

this one has settings for an e8400 on air: http://www.fransatech.com/whats-new...400-wolfdale-how-to-reach-43ghz-with-air.html