Re: OT: CPU compatilbilty ...

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"RJK" <nosuch@xxxxxxxxxxx> wrote in message
news:%237aoQm1$JHA.3732@xxxxxxxxxxxxxxxxxxxxxxx

"Paul" <nospam@xxxxxxxxxx> wrote in message news:h2ukqj$b83$1@xxxxxxxxxxx
RJK wrote:
My 2nd, (old), pride and joy has a Asrock Conroe 865pe motherboard in
it, and I just robbed it of its' Pentium D 935 cpu, !

...and put it into a friends HP Media Center PC, whose Pentium D 2.8ghz
cpu died - after it mysteriously cooked, just 3 days after being taken
to a PC shop where they replaced the PSU with the cheapest one they
could find - by the look of it ! Anyhow, after the cpu suspiciously
fried, and they took it back to that shop, and were told that it now
needs a new motherboard, and cpu, and possibly memory as well !
...then they remembered me - ...who has just sorted it out for them, and
they are now the proud owner of my D935 3.2ghz cpu ! (there was nothing
wrong with motherboard or ram btw :-)

The "computer" shop referred to above, is located in Burnham-on-Sea,
Somerset, UK !!! ...let's hope there's more than one computer shop in
B-O-S :-) , or people might guess which one I'm referring to, ...what a
shame !

Anyhow, I digress, ...as usual !

Referring to http://www.asrock.com/mb/cpu.asp?Model=ConRoe865PE 's cpu
support list for my old board, it doesn't seem to support many of the
"newer"
Core 2 Duo's e.g.

http://www.ebuyer.com/search?limit=50&store=2&cat=22&subcat=1770&sort=pricelow&page=1
...is it just that Asrock haven't bothered to update that list, or
would one
of the 800fsb cpu's, (not on the Asrock list), simply not be recognised
by
my old Conroe's bios ?any help appreciated,regards, Richard


Your board is likely limited to FSB800 or FSB1066 processors, so FSB1333
would be
out of the question. The chipsets of that era, were designed for FSB800,
and
FSB1066 operation is via overclocking past the regular chipset speed
limit
(it also messes up how the RAM works, and the requirements on the RAM,
due
to the chipset divider issues). An FSB1333 processor would be a bit too
much
for that. You could use an FSB800 processor and overclock it, or an
FSB1066
processor at its stock speed.

I expect a number of newer processors would meet the FSB requirement.
There
are still processors available with FSB800 or FSB1066. The problem is,
that
Asrock has stopped putting the effort into shipping new BIOS files. The
last BIOS was released 4/27/2007. The BIOS may take a look at a newer
processor,
and not complete POST. There is no way to predict what will happen, if
you
use a processor which is not on the chart.

I suggest you use a search engine, plug in the name of your board, plus
the name of a newer processor. For example, I tried ConRoe865PE and
E4700,
and found this. Notice the BIOS release is listed as 1.71A. And that
means, somewhere out there, someone has hacked the BIOS and is doing
stuff. (I got an "improved" BIOS from Germany, for my Asrock 4Core family
board, so there are people who do stuff like that.) The last official
release is 1.70, so when you see 1.71A, that means a hacker did it.

http://www.behardware.com/myocdb.com/fiche20256.html

So get out your search engine and go to work. You've got a
job ahead of you, to determine what the enthusiast community
has done with the board.

What you'd be looking for, is FSB800 or FSB1066 processors, so I
wouldn't bother searching for anything FSB1333 from this list.

http://processorfinder.intel.com/List.aspx?ParentRadio=All&ProcFam=2558

In this thread, someone is using ConRoe865PE and E5200. There is no
detail as to what BIOS they're using. That is a 45nm processor.

http://www.silentpcreview.com/forums/viewtopic.php?p=354183

The E5200 is in this list. The E5400 would be the most worthy of
those ones, in terms of a high stock clock.

http://processorfinder.intel.com/List.aspx?ParentRadio=All&ProcFam=2841

An E5400 is $90. But before you buy one, you're going to need to
find a private forum, where they're hacking the BIOS. I have
a suspicion that may help. Your project will have an element
of risk (not in terms of damaging the processor, but in terms
of not getting the board to POST and so on - so you may need
to do some BIOS work, using some other compatible LGA775 processor).

E5400 $90
http://www.newegg.com/Product/Product.aspx?Item=N82E16819116076

To help you out, the BIOS may be at the link at the bottom of this
page. V1.71a. Good luck... If the BIOS chip is socketed, you
could go to badflash.com, and order a BIOS chip with that
burned into it (change out the old chip, plug in the new one).
Or, use some old cheesy Celeron LGA775, to help
you do the flashing, then install the new processor.

http://www.pctreiber.net/datei_download_2472.html

Fortunately for me, my processor already worked with a stock
BIOS, so I was able to flash in a hacked BIOS without a problem
on my Asrock board. My hacked BIOS, fixes EIST so it works on
my board. That makes the processor run cooler at idle.

Paul

Many thanks Paul,

I have googled and found someone using a Core 2 Duo e7200, and whilst all
that is interesting, I think I'll ebay for a replacement D935 or D940 (I
always wanted a D965 but, they're very rare), for the time being,
...and maybe ebay for a Core 2 duo that is on
http://www.asrock.com/mb/cpu.asp?Model=ConRoe865PE 's cpu support list,
but, even the "newer" older ones have already got too old !!

thanks again,

regards, Richard


Oh my goodness, I've just bought a Stk 775 Intel Pentium Core2 Duo E6300 :-
http://www.cpu-world.com/CPUs/Core_2/Intel-Core%202%20Duo%20E6300%20HH80557PH0362M%20(BX80557E6300).html
...and am now confused by fsb frequencies, above specs. indicate that fsb on
board needs to be 266mhz, and then something gets quad-pumped up to 1066 !
....now does that mean that my lowly 4x512mb Corsair PC3200 will actually be
running at 133mhz/(266ddr),,,, and then it gets quad-pumped, or is the
actual frequency on the board 266mhz, and if so will my 4 old sticks of
ddr400/200mhz actual mhz, be able to cope ?

....haven't tried to fit cpu yet, it hasn't arrived yet, and haven't checked
bios revision you, ..mind you that'll be hard 'cause there's no cpu in it
atm !

regards, Richard







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