slow HP Ze4200 series notebook

[Doug]

Hi

I have a hp ze4231 notebook. This machine is supposed to have a P4 mobile
2ghz processor. When I run Everest to check the system setup I get the
following output. I am concerned about the CPU speed - does this say that
it is running at 1196 hz rather than than 2 ghz? If so, what can I do to
increase the speed to 2 ghz? Am I 'underclocked' ?

Field Value
CPU Properties
CPU Type Mobile Intel Pentium 4M
CPU Alias Northwood, A80532

Engineering Sample No
CPUID CPU Name Mobile Intel(R) Pentium(R) 4 - M CPU 2.00GHz
CPUID Revision 0F27h

CPU Speed
CPU Clock 1196.43 MHz (original: 2000 MHz)
CPU Multiplier 12.0x
CPU FSB 99.70 MHz (original: 100 MHz)

CPU Cache
L1 Trace Cache 12K Instructions
L1 Data Cache 8 KB
L2 Cache 512 KB (On-Die, ATC, Full-Speed)

Thanks for your time

Doug

 

[Jim Macklin]

Laptops usually have power management designed to extend the
battery life. This is done by slowing the operation and
therefore the power required.
Check the HP manual for details on your setup.

Yes, to extend battery life, laptops are underclockd.

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.


| Hi
|
| I have a hp ze4231 notebook. This machine is supposed to
have a P4 mobile
| 2ghz processor. When I run Everest to check the system
setup I get the
| following output. I am concerned about the CPU speed -
does this say that
| it is running at 1196 hz rather than than 2 ghz? If so,
what can I do to
| increase the speed to 2 ghz? Am I 'underclocked' ?
|
| Field Value
| CPU Properties
| CPU Type Mobile Intel Pentium 4M
| CPU Alias Northwood, A80532
|
| Engineering Sample No
| CPUID CPU Name Mobile Intel(R) Pentium(R) 4 - M CPU
2.00GHz
| CPUID Revision 0F27h
|
| CPU Speed
| CPU Clock 1196.43 MHz (original: 2000 MHz)
| CPU Multiplier 12.0x
| CPU FSB 99.70 MHz (original: 100 MHz)
|
| CPU Cache
| L1 Trace Cache 12K Instructions
| L1 Data Cache 8 KB
| L2 Cache 512 KB (On-Die, ATC, Full-Speed)
|
| Thanks for your time
|
| Doug
|
|

 

[Ron Reaugh]

Some small format/ultracompact laptops suffer from a major performance
deficiency that is being hidden by laptop manufacturers. I'm curious if the
HP Ze4000 series or other models is one of these.

Intel CPUs come with built in thermal sensing and self throttle when too
hot. Some small format laptops simply can not EVER run at full rated CPU
speed for more than short bursts in a room at normal temperature, 20C.
Their design includes insufficient thermal dissipation for continuous
saturated CPU usage. Such continuous CPU usage is seen in backups using
data compression and many other types of CPU intensive processing like voice
recognition. A Toshiba 3500 TabletPC I've been studying can at best run
continuously at about 600 MHz(spec is 1.33GHz Pentium M) in a 25C room. A
Sony X505 contains a very obfuscated disclaimer regarding CPU speed in its
spec sheet which is this issue.

This is not a battery saving issue where CPU throttling is a designed in
positive advertised feature/advanatge. This is all about when the laptop is
AC powered and one ASSUMES that the laptop provides full performance. It
does NOT!

One can see this behavior using a program like MobileMeter which will show
the CPU temperature jumping to a maximum like 88C and then the CPU speed
plummets.
http://dssc3031.ece.cmu.edu/~tamaru/mobilemeter/mobilemeterreadme-e.htm

Large format laptops like the Sony K27 and Gateway M505 have sufficient
cooling and will run at full speed continuously.

Is anyone aware of this issue and how widely spread this fraud is?