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Biostar i45 overclocking

Last response: in Overclocking
August 6, 2008 9:52:08 PM

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.
August 7, 2008 12:27:25 AM

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
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August 7, 2008 4:30:48 AM

im noob to overclocking, but would u recommend me to get the i45 mb for either a e8400/8500?
August 7, 2008 4:54:08 AM

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.
August 7, 2008 1:03:34 PM

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.
August 7, 2008 1:39:27 PM

There are other settings like reference voltage could someone tell me what those do. thanks
August 7, 2008 6:04:18 PM

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:

this one has settings for an e8400 on air: