HP Vectra VL420 with Celeron D possible?

I own a HP Vectra VL420 with P4B-MX motherboard. As I am planning to
upgrade the CPU, can anyone advise whether this motherboard supports
Celeron D (compared with old Celeron, voltage ragne is mostly the same,
and the main differences are architecture [0.13 vs 0.09 nm] and FSB).
I prepare to run it @ 400MHz FSB.

Thanks in advance.

Best to make sure that whatever Celeron D you buy runs at 400MHz FSB. A great
many of them (all of them?) require 533MHz FSB. If the motherboard does not
support 533MHz, the Celery D will not run at full speed. Likewise, if the
system memory is not currently PC2700 or faster, you will need to replace the
memory, too. All of this may argue in favor of finding an "old" Celeron, which
tops out at around 2.8GHz... Ben Myers

On 28 Dec 2005 02:01:41 -0800, "Square Chris" <> wrote:

>I own a HP Vectra VL420 with P4B-MX motherboard. As I am planning to
>upgrade the CPU, can anyone advise whether this motherboard supports
>Celeron D (compared with old Celeron, voltage ragne is mostly the same,
>and the main differences are architecture [0.13 vs 0.09 nm] and FSB).
>I prepare to run it @ 400MHz FSB.
>
>Thanks in advance.
>

Let me add that it is also common to encounter BIOS issues with name-brand
computers when installing newer processors. Best case is that the BIOS
recognizes the processor for what it is, and everything is A-OK. Another
possibility include incorrect recognition of processor, but system still boots
and runs with CPU at rated speed. Last and worst possibility is that BIOS
grinds to a halt before even displaying anything on the screen (or, a "nicer"
implementation displays on screen) because it is designed to run only with
certain types of processors.

I stopped being lazy and checked the Intel web site. The following URL states
clearly that the Celeron D processors DO NOT run at 400MHz FSB, 533MHz and up
only... Ben Myers

On Wed, 28 Dec 2005 16:15:12 GMT, ben_myers_spam_me_not @ charter.net (Ben
Myers) wrote:

>Best to make sure that whatever Celeron D you buy runs at 400MHz FSB. A great
>many of them (all of them?) require 533MHz FSB. If the motherboard does not
>support 533MHz, the Celery D will not run at full speed. Likewise, if the
>system memory is not currently PC2700 or faster, you will need to replace the
>memory, too. All of this may argue in favor of finding an "old" Celeron, which
>tops out at around 2.8GHz... Ben Myers
>
>On 28 Dec 2005 02:01:41 -0800, "Square Chris" <> wrote:
>
>>I own a HP Vectra VL420 with P4B-MX motherboard. As I am planning to
>>upgrade the CPU, can anyone advise whether this motherboard supports
>>Celeron D (compared with old Celeron, voltage ragne is mostly the same,
>>and the main differences are architecture [0.13 vs 0.09 nm] and FSB).
>>I prepare to run it @ 400MHz FSB.
>>
>>Thanks in advance.
>>
>

Thanks Ben.

As "old" Celeron (400MHz FSB) is quite difficult to be found in retail
market, Celeron D is the only cost-effective option for upgrade. FSB
of this board has no option but 400MHz only, so it will not run in full
speed (e.g. Celeron D 330 2.66GHz running @ 2GHz) for sure, and the
BIOS is not expected to be supported.

Without BIOS support and running at slower FSB, do you think it still
works?

Thanks again. Chris

On the seventh day, Square Chris wrote...

> Without BIOS support and running at slower FSB, do you think it still
> works?

Since the VL420 has a rather incompatible and insufficient memory
interface, I wouldn't even try to upgrade the system. The cpu upgrade is
definitely not worth the money, given that it works, which is highly
unlikely.

If you must upgrade, rather go for a Northwood P4 with 1,8-2GHz which may
be available rather cheaply (30-40 bucks or so when used). These cpus don't
run as hot as your current Williamette and are also a lot more powerful.
However, the memory interface will swallow up most of the performance gain.

--
mit freundlichen Grüßen/with kind regards
Christian Dürrhauer, Institute of Geography, FU Berlin

I'm not suppsed to be here, sir. I'm.....supposed to be dead! -
Tasha Yar, "Star Trek: The Next Generation, (Yesterday's
Enterprise)"

Whether or not the Celeron D 330 works at all depends on the inner workings of
the BIOS. IMHO, going in this direction is a total crapshoot.

I think you would be better off finding a used old 400MHz FSB Celeron or, as
others have suggested, a used old 400MHz FSB Pentium 4... Ben Myers

On 28 Dec 2005 18:12:51 -0800, "Square Chris" <> wrote:

>Thanks Ben.
>
>As "old" Celeron (400MHz FSB) is quite difficult to be found in retail
>market, Celeron D is the only cost-effective option for upgrade. FSB
>of this board has no option but 400MHz only, so it will not run in full
>speed (e.g. Celeron D 330 2.66GHz running @ 2GHz) for sure, and the
>BIOS is not expected to be supported.
>
>Without BIOS support and running at slower FSB, do you think it still
>works?
>
>Thanks again. Chris
>