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my e6300 won't go over 400 fsb

post #1 of 19
Thread Starter 
Hi. I'm new to this forum and relatively new to overclocking but I am relatively knowledgable.

Let me say hi to the masters out there first ^_^. I have a problem with my e6300. It won't go over 400 fsb. Not even 401 fsb. Won't even POST at 401 FSB but will run perfectly fine with 400FSB through 4 hours of Supreme Commander. My spec is as following:

Mobo: p5bdeluxe/wi-fi ap with version 1215 bios (newest on asus website)
Memory: OCZ reaper pc 8500 5-5-5-15
Proc: C2D E6300 (won't go over 2.8Ghz or 400FSB with 7x multiplier)
PSU: Tagan black pearl 600W
VGA: nvidia 7950GX2 standard clock
Heatsink: Scythe infinity with single fan

I previously used a patriot PC5300 memory and has already achieved 400 FSB with that memory.

As for bios settings I followed the one on this link:
http://www.xtremesystems.org/forums/...d.php?t=115217

please enlighten this young nerdling. hehehe.
post #2 of 19
I might be an "fsb hole". Try 410, 415 or 420 and see if that boots.
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R'lyeh
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post #3 of 19
Set RAM as slow as possible, with 5-5-5-15 timings, set voltages at auto, Vcore at 1.40-1.45, FSB Termination at 1.45 and NB Vcore at 1.50-1.55.
this should get you over 3Ghz.

@afzsom; arent those exactly at 400 FSB, due to the straps...
no reason not to try though.
post #4 of 19
That's true, didn't even think about the strap thing. His motherboard should be fine going above 400fsb though and changing to the next strap.
R'lyeh
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R'lyeh
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post #5 of 19
Thread Starter 
Quote:
Originally Posted by ChielScape View Post
Set RAM as slow as possible, with 5-5-5-15 timings, set voltages at auto, Vcore at 1.40-1.45, FSB Termination at 1.45 and NB Vcore at 1.50-1.55.
this should get you over 3Ghz.

@afzsom; arent those exactly at 400 FSB, due to the straps...
no reason not to try though.
As a matter of fact. I've set my timing to 5-5-5-15 and my PC-8500 running at 1000 MHZ currently with my 400 FSB. with vcore 1.4-1.525 even and NB vcore at 1.6 (highest setting can't remember). Yet nothing works. I'm desperate. I keep seeing posts about P5Bs going over 500 fsb. cries.

I've also previously tried the 410, 420, 425 thing. Doesn't work for me. Very frustrated.

Anyone know of any bios issues or anyone who has an P5B deluxe that would enlighten me would be very much appriciated.

Edit:
Oh and if this helps my CPU temp is 44 idle 52 load and Mobo temp is 34 idle forgot load.
post #6 of 19
Thread Starter 
bump

help pls >.<
post #7 of 19
You need to find out your NB and SB temps.

They may be limiting the FSB.

If not then i think you may have just got a crap board. It should do 400
+FSB without any issues at all.

Although it does seem weird that it will do 400 but not 401

Any chance of an RMA?
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Smallville
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post #8 of 19
drop the ram to 800 mhz (1:2 with fsb) and loosen it up to oc, then you can tighten ram after you get your cpu max
post #9 of 19
Boot at 400, while in Windows, use Clockgen or Systool to raise the FSB, I use Systool. Make sure you give yourself enough Vcore to allow for the FSB change in Windows. This is just to see if it's a Bios setting issue or an FSB wall.
Also you might wanna consider the Vdroop pencil mod for your P5B
Mighty-iTX
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Mighty-iTX
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One foot in..
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post #10 of 19
Quote:
Originally Posted by grunion View Post
Boot at 400, while in Windows, use Clockgen or Systool to raise the FSB, I use Systool. Make sure you give yourself enough Vcore to allow for the FSB change in Windows. This is just to see if it's a Bios setting issue or an FSB wall.
Also you might wanna consider the Vdroop pencil mod for your P5B
Software OCing is ALOT less stable than bios
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