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p5b-d sucks for FSB overclocks - Page 3

post #21 of 34
Thread Starter 
Quote:
Originally Posted by The Argosy View Post
I am drawing the same conclusions with the vcore >1.4 to get to 3.5.

What are your temps like?

my temps using dual superpi around 48*C with the stock heat sink but I cheated.

the a/c works wonders
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post #22 of 34
Quote:
Originally Posted by rx7speed View Post
no matter what I try when the fsb gets above around the 460 range it's like she just shuts down. no post or anything. whats interesting is I can putthe mult for the cpu on 6 doesn't change anything. I can get a post with the FSB as 266 and the ram running at 1067mhz. so I don't think either of them would cause the issue. I can upp the voltage for the ich, fsb, and nb to max with no change it just will not post above that speed.
whats up guys?
Uh.

Thats the weirdest thing ever read in my life. You must be the only person to have ever said p5b-d sucks for OCing. :hands a medal to you: Gratz!!!
    
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post #23 of 34
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Quote:
Originally Posted by atomicfission92 View Post
Your ram timing are pretty tight for that OC, try backing them out to 5 5 5 15 and see if that helps.
ah sorry when I was trying to overclock the fsb I did try 5-5-5-15 but it still wouldn't post. when I lowered the fsb and used a higher divider to get 1067 I did try the 5-5-5-15 though it didn't seem to do a whole lot but then again I didn't try much with the voltage either as it was more of a hey can the ram even go that high or is the fsb holding me back. and it post at least using the ram that high it is just if I set the ram 1:1 and up the fsb then I'm outta luck
it is now at 910mhz I use the 4-4-4-12
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post #24 of 34
Thread Starter 
Quote:
Originally Posted by Syrillian View Post
RX7, that would be worth a try. Those were my out-of-the box timings on my RAM. I tightened them slowly over about 30 days as each jump in OC proved to be stable.

I forget the Vdroop rating, but CPUZ and all other monitoring utilities show mine to be at 1.41V (I think the setting in the BIOS is about 1.51).

Have you tried sticking with your highest multi and attempted to find a void in your BUS speed where your rig simply won't boot or stay stable. I had one between 350-400 (somewhere around those marks) where my rig sould POST and I could mess around a little, then the system would freeze. Once I went beyond 400 things smoothed out some.
I haven't tried to see if I had any dead spots really since I bought this ram. I know when I had my old centon in I was running around 355fsb*9 and it ran peachy as can be but I couldn't try any higher. give me a moment and I will find out though.
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post #25 of 34
Bear in mind that a lower multi and higher FSB will yield a more efficient system. Using the highest multi might be able to get you clear of problem frequencies. Once you sort that out, you could drop your multi and mess w/ the BUS speed and the RAM divider to get you back up there....(?)

BTW IMHO you are getting to the point of needing (maybe) aftermarket cooling. I'm over paranoid, but better safe than sorry. Vcore at 1.41 per CPUz keeps mine stable, but I don't know if the properties of the Conroes are the same as the Allendales in this regard. Maybe Conroes can do more on less.
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post #26 of 34
Increase vmch and vfsb
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post #27 of 34
hey, i had the same problem with the p5b-d.
i couldnt oc past 400. what i had to do is manually change the ram freq to 800mhz (it may be a little higher, but its in the 800 range) then she posted. try this and im sure it will work. it did for me.

fyi, the only reason im dumped this board was because i wanted sli.


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post #28 of 34
Uhm i think you need to reset BIOS and start over. I run 460mhz FSB daily on my 6700. The only complaint I have about these boards are the fugheyzee drivers....they make boot-ups so dang long...! Some people have found alternate drivers to fix that, but I dont want to change ANYTHING, I just got my clocks stable past 450 and dont wanna jinx it jus yet.

currently running 460 fsb 7x = 3.22ghz
RAM 1:1 @ 930mhz, 2.3v, 4-5-4-15-4
vcore in bios- 1.35v
all board voltages set @ auto.
pci-e freq- 110mhz
post #29 of 34
Thread Starter 
Quote:
Originally Posted by Mikey122687 View Post
Increase vmch and vfsb
I can't. I have tried the highest settings alerady and it still does the same
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post #30 of 34
Thread Starter 
Quote:
Originally Posted by CL3P20 View Post
Uhm i think you need to reset BIOS and start over. I run 460mhz FSB daily on my 6700. The only complaint I have about these boards are the fugheyzee drivers....they make boot-ups so dang long...! Some people have found alternate drivers to fix that, but I dont want to change ANYTHING, I just got my clocks stable past 450 and dont wanna jinx it jus yet.

currently running 460 fsb 7x = 3.22ghz
RAM 1:1 @ 930mhz, 2.3v, 4-5-4-15-4
vcore in bios- 1.35v
all board voltages set @ auto.
pci-e freq- 110mhz


455 seems to be about the highest stable I can get. much above that it starts to poop out and get errors on memtest lock ups and such.
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