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Biostar Tpower P45 does 724mhz fsb WR + 6006mhz E8500 - Page 2 - i4memory.com - different look at memory

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Old 21-06-2008, 05:35 PM   #9
eva2000
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Re: Biostar Tpower P45 does 724mhz fsb WR + 6006mhz E8500

wow James congrats on WR ! 724FSB
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Old 21-06-2008, 09:22 PM   #10
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Re: Biostar Tpower P45 does 724mhz fsb WR + 6006mhz E8500

thanks eva, i was thinking a couple days ago when you were going on 14mhz to go, 'yeah right like ill get to 700mhz, maybe 690 if im really lucky'.... crazy man, ill try with milambers tracers in the near future for more
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Old 22-06-2008, 09:27 AM   #11
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Re: Biostar Tpower P45 does 724mhz fsb WR + 6006mhz E8500

Awsome pro
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Old 25-06-2008, 10:16 AM   #12
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Re: Biostar Tpower P45 does 724mhz fsb WR + 6006mhz E8500

hey george i got around to some fsb stability testing last night

with the balisitix stick (damn i like these)

stability at
660mhz for 8m
675~mhz for 1m
i didnt do 32m but i would guess at least 640mhz
this is with fairly tight timings considering 5-5-5-15 trd=3 trfc=60 performance level =10, 16-16
no mchbar loosening, 1333strap

If I can get anywhere remotely close to those fsb maxes on 9.5x multi ill be doing alright...
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Old 25-06-2008, 12:02 PM   #13
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Re: Biostar Tpower P45 does 724mhz fsb WR + 6006mhz E8500

i am testing this Biostar P45 board as well atm

so far it was really really buggy with first release bios and after flashing to a new one that one of the beta testers shared on XS (Pt1t)-(bios 618) i must say it has improved a lot (it took me about an hour to get my head around the bios)......i was doing some 590MHz*8 (4720MHz) 32M SuperPi runs with 1.59v on air cooling >>>> this new E8400 CPU is a monster >> efficiency wasn't the best but it wasn't completely terrible. I think i managed to reduce PL in windows to 9 from memory and timings were 5-4-4-9-5-30. final time was 9m53s. i was also booting at 4.8GHz but could not complete any runs

I do have a warning for anyone thinking of going to Biostar and besides some bugs like being forced to run auto RAM timings etc etc, the way they are achieving the FSB is that they actually tie vFSB (FSB volts) with vNB (NB volts) so when you start pushing to +0.4 or more on MCH your vFSB is starting to reach dangerous levels which according to Intel will kill your CPU very quick. Biostar hardware health reporting software was showing the following:
  • Bios set NB +0.35 >> Actual NB voltage reported: 1.37v
  • +0.35 on NB makes vFSB jump to 1.42v (setting any value in bios does NOT change vFSB)
  • Bios set NB +0.4 >> Actual NB voltage reported: 1.42v
  • +0.4 on NB makes vFSB jump to 1.47v (setting any value in bios does NOT change vFSB)
  • Next Voltage setting in bios for NB is +0.5 >> Actual NB voltage reported: 1.47v
  • +0.5 on NB makes vFSB jump to 1.52v (setting any value in bios does NOT change vFSB)

Intel says that running 1.5v on vFSB will kill your CPU very quick!!! I haven't had any boards yet that gave me an option to run more than 1.45v from memory and i have run 1.45v for benching on most of these boards without any issues but who knows.........this was recently reported on a website as well and it's now got me spooked as i currently have a CPU going back to Intel for warranty (first time i had a dead CPU ever)

pro says he used +0.7 which will result in vFSB at around 1.72v EEEEEEEEEEEK >>i donno how long that chip will last but if all these sources are correct not very long at all..........

It is my understanding that engineers from Biostar are aware of this however they feel that the only way to reach such FSB is to tie vFSB to vNB. I think is a bad position to take if vFSB does in fact pose such danger..........we will however find out what sort of impact it is having in future when more and more overclockers try these out and particularly the ones going for extreme clocks and high volts.

i feel that they should let us decide what volts to set rather than have it fixed....

my bad luck continues >> one of the sticks from my BEST DDR2 dominator kit is dead
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Old 25-06-2008, 12:36 PM   #14
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Re: Biostar Tpower P45 does 724mhz fsb WR + 6006mhz E8500

how is it fixed? i can independantly set both voltages via bios and both are reported as different, i only use 1.45v on nb anyway to get 660mhz 8m stable..

no my vfsb is 1.46 mate, i dont use 1.72
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Old 25-06-2008, 01:31 PM   #15
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Re: Biostar Tpower P45 does 724mhz fsb WR + 6006mhz E8500

bios 618 is definitely fixed

biostar confirms this

http://www.xtremesystems.org/forums/...3&postcount=51

but it's great that your bios doesn't

pls send it though
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Old 25-06-2008, 05:04 PM   #16
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Re: Biostar Tpower P45 does 724mhz fsb WR + 6006mhz E8500

nice James, 660FSB for 8M !

interesting findings dinos about vFSB.. scary when boards take over automatically for setting voltages and sorry to hear about your dominator module
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