AMD Athlon-PECM, 1333 MHz (5 x 267) t'bird upgrade or replacement?

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I'm very happy with my t'bird processor but would like to know if there's
a better one that I can swap it for to improve the general speed of my
computer. The more time I spend looking for an alternative the more
confused I get because I just don't know what a suitable replacement
might be. So, please, look at my current specs below and help me out.

CPU Type        AMD Athlon-PECM, 1333 MHz (5 x 267)
Motherboard Name    MSI K7T Power/Pro/Pro2/Pro2-A/Turbo/Turbo2/Turbo Limited Edition
Motherboard Chipset    VIA VT8363A Apollo KT133A

CPU Properties    
CPU Type        AMD Athlon-PECM, 1333 MHz (5 x 267)
CPU Alias        Thunderbird
CPU Stepping        A9
L1 Code Cache    64 KB
L1 Data Cache        64 KB
L2 Cache        256 KB (On-Die, Full-Speed)

CPU Physical Info    
Package Type        453 Pin PGA / 242 Contact Slot A Cartridge
Package Size        4.95 cm x 4.95 cm / 13.99 cm x 6.27 cm x 1.64 cm
Transistors        37 million
Process Technology    6Mi, 0.18 um, CMOS
Die Size        120 mm2
Core Voltage        1.75 V
I/O Voltage        1.6 V
Typical Power        34 - 65 W  (depending on clock speed)
Maximum Power    38 - 72 W  (depending on clock speed)

CPU Manufacturer
Company Name    Advanced Micro Devices, Inc.


Re: AMD Athlon-PECM, 1333 MHz (5 x 267) t'bird upgrade or replacement?

Jim wrote:
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Your "Motherboard Name" above seems kinda long :-) Which of the
many possibilities is it ? Check the surface of the motherboard,
for some white lettering with the name in it. There are some
boards here, beginning with K7T, that might match what you find.
Recognize, that some of the motherboards don't officially
support the fastest processors, which is why the exact name
is important. (A faster processor may work in them, or maybe
the BIOS will kick up a fuss. One change between older and newer
models, was the addition of the PLL filter for the newer processors.)

When you figure out which motherboard, there is a CPU Support tab
on each product page. That will give some idea of which processor
would fit.

Depending on what Ebay has to offer, this could be a cheap
upgrade. The question would be, whether it is enough of an
upgrade to justify the trouble you are going to. I guess it
all depends on what your performance objectives are, as to
whether the upgrade makes sense or not.

If this was my upgrade project, I'd be looking for a dual core
AM2 socket processor and another motherboard. The difference
would be night and day (but you need the budget for it). The
cheapest dual core is $56.

The fancy one (6000+) is $160.

A new motherboard with integrated graphics, would avoid the
need for an immediate video card upgrade. Having to dump an
expensive AGP card, is what makes some people think twice
about this plan.


Re: AMD Athlon-PECM, 1333 MHz (5 x 267) t'bird upgrade or replacement?

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It's the K7T Turbo 2 (MS-6330 v5.0)

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That's an excellent page, Paul. Going by the information
linked from your link, , all I
need do is decide which is the best;

Duron 1G (Spitfire)
Duron 1.3G (Morgan)
Athlon (Thunderbird) 1.4G (Thunderbird)
AthlonXP 1800+ (Palomino)

What would you say? Quite frankly, I haven't a clue.

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It probably doesn't make sense to change something I'm perfectly
happy with but I'd like to be in the position where I can say that
I'm glad I did though. Who knows what I might be missing out on
if I don't upgrade? I'm not much a gamer
Moto GP2
Tiger Woods 2007

but even these could be improved with a faster cpu, hopefully.

My main reason for looking for an upgrade is that I find HD trailers
jerky and slow, and looking around Google tells me that Quicktime
is CPU hungry, thereby indicating (at least to me) that I need to
upgrade to a faster CPU.

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Not if you'd just forked out nearly seventy green queens on memory
sticks, you wouldn't.

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Very nice. Thanks for those links.

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I'm currently using;
Device Description    GeForce FX 5500
Adapter String        GeForce FX 5500
BIOS String        Version
Chip Type        GeForce FX 5500
DAC Type        Integrated RAMDAC
Installed Drivers    nv4_disp ( - nVIDIA Detonator 91.31)
Memory Size        256 MB

I'll upgrade that soon, too.

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Thanks Paul.

Re: AMD Athlon-PECM, 1333 MHz (5 x 267) t'bird upgrade or replacement?

Jim wrote:
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if its just a processor upgrade then the board you have indicated will
take up to a AthlonXP 2600+ thoroughbred with a bios update

that would be your best option this should give you 2100mhz before over
clocking which gives you twice the processing power that you have now
how ever finding an old xp2600+ with FSB of 266mhz processor will be hard

Re: AMD Athlon-PECM, 1333 MHz (5 x 267) t'bird upgrade or replacement?

Jim wrote:
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Well, this page, off the link at the top of my reply, lists more than
the one in the original product page. This is CPUSupport for K7T Turbo2.

AthlonXP 2600+   133   Auto   OK

That particular processor is hard to find. If you search for 2600+,
you're more likely to find the 166 (FSB333) one instead. But your
motherboard is FSB266, which is why the 2600+/FSB266 is the fastest
one listed.

Another alternative, would be to use an AthlonXP-M (mobile) processor.
I have one of those in my A7N8X-E Deluxe motherboard, and you can set
the multiplier on those in the BIOS. (I run mine like it is a 3200+.)
Whether that works, really depends on whether the BIOS has the necessary
control over the multiplier or not. Fiddling with the multiplier can be
an involved mod, and it doesn't always go smoothly. In my case, the
motherboard is what made it easy. (The only thing my motherboard is
missing, is it only controls 4 of 5 FID signals, so I cannot get the
high multiplier values if I need them. With your FSB266 limitation,
I suspect you'd want the high multiplier values, like more than
12.5 x 133.)

The 2600+ FSB266 processor would be a more straightforward purchase
and installation (no fooling around necessary), but the thing is,
are there any for sale out there ? They were hard to find, even when
they were being manufactured.

In terms of evaluating how things are going, you can do ctrl-alt-delete
and bring up the Task Manager. Run your Quicktime decoded video and see
if the CPU is pegged. The chart created might give you some idea whether
you need only a small improvement, or a really big improvement.

OK, you've spent 70 on memory, but how much would you spend on
a video upgrade, and in the end, would the newer AGP video card
be reusable in your next motherboard upgrade ? At some point,
you have to decide whether the old platform is worth building
around. Again, I wouldn't recommend investing in an expensive AGP
video card, for the reason I stated in the previous post - you're
going to be clutching that thing, and refusing to part with it :-)

BTW - these days, the ATI 1950Pro AGP is probably the fastest
easy to get card you can find. The Nvidia ones may be harder to
find now, at least new at retail. Your board is AGP 4x, and that
leaves more possibilities. For some background on AGP, I find
this page handy:

X1950 Pro is pretty far up the charts:

The X1950 Pro is also available in PCI Express, if you have
a change of heart and go for an AM2 socket processor :-)

There are all sorts of intermediate upgrades. For example,
you could look for newer motherboards that still use the
RAM you bought. The RAM you bought is probably DDR, so you
could look for a S754 or S939 AGP motherboard. The S754
go up to 3700+, and there are no dual cores, so that is
still a bit limiting - but people who had S754 were
happy when gaming with it. In that sense, the S939
wasn't essential, and S754 could do the job.

Where the S939 helps, is you can get dual core processors
for it, and that gives a smoother desktop experience. But
finding all the ingredients, at the right prices, is a lot
harder than just moving to AM2 and shopping for new
stuff. I wonder what that RAM you bought would fetch if you
sold it :-)


Re: AMD Athlon-PECM, 1333 MHz (5 x 267) t'bird upgrade or replacement?

On Sat, 15 Dec 2007 22:16:51 +0000, Jim wrote:

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Well, now that we know it's a Socket A MB, and not a slot A, your options
improve considerably.

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I haven't found a socket A board yet that wouldn't run any Socket A cpu I
put in it. You jave the KT133A chipset. my old board has the older KT133
chipset and I've run it at speeds from 600MHz to 2400+MHz with some of the
newer XP cpu's that of course the website says won't work.:-) If you
search the web you can find what others have run in the same board you
have. My brother had one just like it or maybe an older model That I put
my 2100+ Tbred core cpu and he used it for about a year before I gave him
an Athlon 64. IIRC, his was also an older KT133 chipset without multiplier
control and only a 100MHz FSB. many have used 2400+ XP's in your board.
Search google groups for k7t turbo2 2400 and you'll see.

See AMD cpu in sigline for lots of info on running cpu's in boards that
supposedly won't run them.:-)

Or just download all of this group and search. Been discussed hundreds of

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AMD cpu help

Re: AMD Athlon-PECM, 1333 MHz (5 x 267) t'bird upgrade or replacement?

reply@group.please says...
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 Per my reply in another group, I was thinking you had a Slot-A board.
Please disregard.

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 According to AMD: -


 has some options for you.  I'd try the fastest chip you can get your
motherboard to run. Not being very familiar with your board I couldn't
say for sure, but

 might work and

 might also, depending on your bios limitations.

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 Of those I'd go with the XP 1800+, but there are others to consider.
See above.

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 I'd see what retailers have on hand before I'd resort to E-bay. Less
problems if you have to return the processor for any reasons.

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 As I said in my other post, you may want to consider a used system.
There should be a bunch of them available after Christmas when people
get rid of their old systems that got replaced by Christmas gifts.

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