John Sproule,
Thanks for sharing your experiences with XP-M
processors.
I have a question about heat and wattage of the AMD
XP-M processors. According to the descriptions of
the 3 available XP-M processors, 2400,2500 and 2600,
all of them are rated as drawing 45 watts. Wouldn't
the faster processor(s) draw more wattage than the slower?
As these processors are in OEM packaging without
fans, what brand heatsink & fan would you recommend
for using them WITHOUT overclocking?
And what fan(s) should be used if overclocking is
attempted?
TIA
Michael Eisenstadt
----- Original Message -----
From: "John Sproule" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, May 14, 2004 10:22 AM
Subject: Re: [PCBUILD] AMD XP vs Pentium 4
> Yes, I think the XP mobile versions have some advantages over the regular
> XPs. I'm running an XP-M 2600 on an Epox EP-8RDA3+ motherboard. It's
> overclocked to 11x210=2310 MHz using 1.650v, and I don't think the
processor
> that I have is a particularly stellar overclocker. It will run stable at
> 2400 MHz, but this requires 1.700v and tended to get too warm under full
> load for my preferences.
>
> Most desktop motherboards will not properly detect these XP mobiles, and
> most will not know what to make of the high multipliers that they use.
The
> XP-M 2600 is suppose to run at 2000 MHz on a 133 MHz FSB, so the default
> multiplier is 15x. When I first installed this processor and booted up,
it
> came up with 6x100=600MHz. After flashing the BIOS, it defaulted to
> 6x133=800MHz. It also defaulted to 1.6v instead of the specified default
> 1.45v. So, you'll need a motherboard that will let you manipulate the
> multipliers from within the BIOS to take advantage of these processors.
> Most motherboards will be limited to a range of 6x-12.5x settings, though
> they may show more options. At least this was true with my Epox board.
So,
> I needed to set the multiplier to 12.5x or less and then adjust the FSB
> speed accordingly to get things working well.
>
> These are sold as OEM processors, so you will need to get a heatsink and
> fan.
>
> As far as the Epox motherboard goes, it is a pretty good choice for
> overclocking, but I have found that the PCI sound cards that I've used are
a
> bit more prone to static like sounds on this motherboard then I remember
> them being on my previous motherboard. On the other hand, these are older
> sound cards that I tried (SB Live and Turtle Beach Santa Cruz), and I'm
not
> sure if the WinXP driver support for them is as good as it could be. The
> integrated onboard sound (C-Media chip) doesn't seem to have these
problems,
> but it is limited to only 16 hardware sound channels, which makes it less
> desirable, for me, than a dedicated sound card. I guess I would have to
try
> a newer sound card, like an Audigy 2, to really tell if the problem is
with
> the motherboard or the sound card drivers.
>
> By the way, with regard to P4 motherboards and the special 12v connector,
> there are adaptors that let you use a regular molex power supply line and
> connect it to the little square connector on the motherboard. Early Asus
P4
> motherboards even had a regular molex connector on the motherboard ("EZ
> Plug") for this purpose. I'm not sure if there is any down-side to this.
> Probably, at the least, you should not be running anything else off of
that
> power connector, if you hook it up to the motherboard. And, it raises the
> question of whether a power supply lacking this 12v connector is fully up
to
> the latest Intel standard in other regards. See
> http://www.anandtech.com/guides/viewfaq.html?i=119 for more information on
> this.
>
> John
>
> ----- Original Message -----
> From: "Michael Eisenstadt" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, May 13, 2004 7:33 PM
> Subject: Re: [PCBUILD] AMD XP vs Pentium 4
>
>
> > The Enermax case has a 365w Enermax power supply. It doesn't
> > have the Pentium square 4 pin connector which argues for limiting
> > the choice to AMD (unless there is a reliable adaptor).
> >
> > I have been researching the XP-M processors since you wrote
> > and it seems that any one of the 2400, 2500 and 2600 XP-M
> > processors would be a good choice especially in terms of
> > reducing cooling problems and, as well, leaving open the option
> > of overclocking.
>
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