Somewhere on the interweb "Dr.White" typed:
> "~misfit~" wrote in message
> > Somewhere on the interweb "Dr.White" typed:
> > > Dear folks,
> > >
> > > In trying to determine how our friend ~misfit~ will fare,
> > > overclocking his E4500 on a board without the luxury of any CPU
> > > voltage adjustments in BIOS, I wonder if you Core 2 Duo / Quad /
> > > Pentium Dual core owners would be good enough to post here how far
> > > you managed to overclock your CPU *before* you had to start
> > > tweaking the voltage.
> > > My puny E2160 goes to 2.628GHz, i.e. 292*9, from 1.8GHz, on that
> > > board, and I suspect it would go further but as other users of my
> > > board have found, the FSB just seems to hit a brick wall at
> > > 293-295MHz no matter what CPU they use. I suspect ~misfit~ will be
> > > able to take his E4500 to at least 266*11, still giving him very
> > > respectable performance. Board is an ASrock 4coreDual SATA2.
> > >
> > > Kind regards in advance,
> > >
> > > Dr.White.
> > Doc, see my other reply for the current state of things. A thought
> > comes to mind. In the thread I learned to do the BSEL trick from
> > they talk about overcoming FSB brickwalls by getting it to boot at
> > the higher setting. Therefore this trick could improve your OC if
> > you were to try it. Regards,
> > --
> > Shaun.
> Funny, I was looking at that the other day - I had seen the mod that
> forces 800fsb C2Ds to the 1066 strap, I take it you are suggesting
> that I force it to boot at 1333fsb?
Actually I'm suggesting that you mod it to force 1066fsb strap (as I did
with mine). Apparently, with some boards that have a "FSB hole" or
'brickwall' such as you report with yours at 295-ish, if you get the CPU to
strap at 1066 the 'hole' vanishes, or at least goes way up the spectrum,
allowing OCs well into the 300's.
> It might work - this board allows
> adjustment of fsb up to 340, but does not 'officially' support
> 1333fsb chips like the MUCH cheaper E6x50 series. That would be
> sweet, and I'd get 3GHz out of this little fella. Ingenious stuff,
> this. Of course the logical thing to do would be to stop arsing
> around with this PC and get some work done, but this is fascinating
I am quietly confident (well, as quietly as you can be on a world-wide
public forum) that, if you force 1066 bootstrap, you'll get a better
workable range of FSB adjustment from your mobo/CPU. Just by going by hours
of reading others experiences on forums yesterday.
> I know you had reservations over the quality of the electrolytics on
> the Asrock board - all I can say is - everything seems pretty good so
Not to cast aspersions on the quality of the Asrock but "so far" doen't mean
much. It's been my experience with bad caps that they start to go bad after
reasonably prolonged use. Say, 2+ years.
> I'll try and dettermine the manufacturer if you like but I think
> I can safely say that these are not the faulty Taiwanese caps from a
> few years ago. I am fairly sure that my favourite component shop,
> overclockers.co.uk would not continue to stock these boards if they
> were a bit flaky - like they don't EVER stock ECS / PCChips items.
As I said above, it's damn hard to tell if they're *going* to be flaky.
Those damn bad capacitor manufacturers keep changing the company names as it
becomes known which ones are no good. I have it on good authority that,
although not to the same extent as a few years back, there are still quite a
few bad caps finding their way into computer and other electronic
> OK, I've owned ONE ASRock board so I'm in no position to speak about
> its long term reliability but the aforementioned firm has run out of
> these boards and re-stocked twice now, and they've only been
> available since August.
Yeah, the only place I can source them in NZ is Overclockers NZ Ltd. None of
the more mainstream shops stock Asrock. That's always puzzled me. Aren't
they an Asus subsiduary?
> Oh yeah, they're ROHS compliant for that
> green streak in you mate.
I *do* like the idea of RoHS. However, it has a big down-side for me. It
makes it *very* difficult to replace capacitors or other components on a
mobo if they do go wrong as you need a hotter soldering iron (more potential
for damage to surrounding components/mobo itself) and different formulation
solder to do any work on them. I know 99% of folks don't do any
component-level work on their mobos but I'm a 1%-er. <g> I frequently
replace caps, or, in some cases, add them where there are places on a mobo's
VRM area for them but they're not fitted.
> By the way, I know you've got a few computers - have you got any dead
> or dying DVD / CD drives? Forget lens cleaners. Well, forget them if
> they don't work, which is most of the time. Check out my
> all-encompassing repair solution for these eventualities:
Interesting. I'll dismantle my flatmate's Lite-on DVD-RW and check it out.
For ages now it's refused to format/erase DVD+/-RWs yet it'll write to them
sometimes. She's a messy thing, leaving discs around the place so it could
be as you suggest. Thanks.
Actually, now I read more of the thread, I have an old Samsung stand-alone
DVD recorder that might, just might, benefit from this treatment. I'll let
> I will now look further into that BSEL craze. Fingers crossed...
You saw the link with the method that worked for me to get a 1066 bootstrap?
About 80% of the way down the page, a post by "jmsandrsn" with a big pic of
a (pent 4) CPU with some pins coloured. I just covered 'pin' BSEL1 with a
sliver of sellotape and painted across from BSEL2 onto the top of the tape
where the BSEL1 contact is made with rear window defrogger repair gunk.
Basically followed his instructions. Took 5 minutes, let it dry for 30 and
away we go!
It worked first time, both times for me (tried it with my Celly 420 first).
In fact, my flatmate is keen to get the same Asus Mobo I have, to use that
Celly 420 now. At 2.13GHz (1066 bootstrap) it benches 25% faster than her
Barton 3200 and uses less than half the watts. Those Cellies are only around
25 quid or so, an awesome deal considering what I paid for my Barton a few
years back and my T'berd-B a wee while before that. Plus they do a 440, 2GHz
(I think). Getting that to boot at 1066 (2.66GHz) would make it into quite a
formidable single-core CPU. Probably faster than any P4 ever made and
they're 64-bit CPUs, with 512MB L2.
Good luck with the BSEL mod. It's not that difficult, even for someone like
me, who's eyesight isn't what it used to be and who's hands shake a bit.
I detailed the results of my experience in a reply to myself in the "PC
support network" thread.
Shaun. >> Stay informed about: Core 2 Duo / Quad overclock without Vcore adjustment....