Do I need to change my celeron m 550

Hi, that's my first post.

I have recently bought a cheap notebook (generic brand, HASEE S20II).

The cpu is a celeron m 550. It delivers enough power for my needs, but it runs at 55-60°C all the time. The fan is always turning...

I've heard that there's no way to underclock the celeron m, so I'm ready to change my cpu (and RAM), but is it possible on my laptop? What cpu would you put in? The T8100 seems perfect for my needs (good power, low consumption)

Here's the everest report, thanks for your help
Pierre

 

You'll have to find about BIOS Support. The ODM/OEM might have a http/ftp site for BIOS updates. Check out their documentation for the update history. If Core 2 Duos are supported (Merom & Penryn), then the CPU upgrades will work.

You can go for a cheaper Merom Core 2 Duo, if you don't run CPU-intensive tasks, such as the T5450, T5550, etc. You can undervolt them, which helps in reducing the TDP only.

 

Thanks for your reply Andy, i've read that the GL960 (533MHz) chipset can handle a core 2 duo, even at 667Mhz. I hope so!

the Bios i have is a PHOENIX 1.02 (12/07/07). I couldn't manage to find an update to flash it, the only solution i could get is here but for some $.

Do you think I can buy a T5550 and try it before updating my BIOS?
What temperature can i expect for desktop tasks with a T5550?

Thanks

 

GL960 can handle any socket P Core 2 Duo, up to 800MHz FSB. I'm quite sure t5550 will work, probably as well as t8100. Celerons run hot because they have no SpeedStep support, thus running at full speed all the time.

 

Hi NJoy, so the only question is about the Bios i have...
I will ask my local dealer if i can "test" the T8100 (it's the only one available, T5550 is too old i guess)

 

i think it's a good idea. First of all, 800MHz FSB does make a difference compared to 667, and, as been said many times, 45nm Penryns are much more energy-efficient. However, with any of those you will see a world of difference when compared to your current Celeron.

Good luck! I hope it'll go the easiest way for you.

 

Hi, the celeron 550 m is now replaced by a T8100 (after a BIOS Update). Everything went fine, but the temperature is a bit high (i didn't expect 48°C after just 20' of internet (my room is at 22°C)). I'm a bit puzzled by the superPi score : 40" (1M). My celeron 550 used to do 32" (1M).

Next step is undervolting.

Thanks for your help guys, i'll have some other questions for sure

Code:

CPUID Hardware Monitor 1.1.3.0
-----------------------------------------------------

Mainboard Vendor	HASEE
Mainboard Model		S20II (0x147 - 0x29D10)


Hardware monitor
-----------------------------------------------------

ACPI hardware monitor

Temperature sensor 0	48°C (118°F) [0xC8C] (THRM)

Dump hardware monitor



Hardware monitor
-----------------------------------------------------

Intel Mobile Core 2 Duo T8100 hardware monitor

Temperature sensor 0	30°C (85°F) [0x46] (Core #0)
Temperature sensor 1	30°C (85°F) [0x46] (Core #1)

Dump hardware monitor



Hardware monitor
-----------------------------------------------------

TOSHIBA MK1252GSX hardware monitor

Temperature sensor 0	36°C (96°F) [0x24] (HDD)

Dump hardware monitor


Processors Map
------------------------------------------------------------------------------------

Number of processors	1
Number of threads	2

Processor 0
    -- Core 0
        -- Thread 0
    -- Core 1
        -- Thread 0


Processors Information
------------------------------------------------------------------------------------

Processor 1 (ID = 0)
Number of cores		2 (max 2)
Number of threads	2 (max 2)
Name			Intel Mobile Core 2 Duo T8100
Codename		Penryn
Specification		Intel(R) Core(TM)2 Duo CPU     T8100  @ 2.10GHz
Package			Socket P (478) (platform ID = 7h)
CPUID			6.7.6
Extended CPUID		6.17
Core Stepping		M0
Technology		45 nm
Core Speed		1596.2 MHz (8.0 x 199.5 MHz)
Rated Bus speed		798.1 MHz
Stock frequency		2100 MHz
Instructions sets	MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, EM64T
L1 Data cache		2 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache	2 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache		3072 KBytes, 12-way set associative, 64-byte line size
FID/VID Control		yes
FID range		6.0x - 10.5x
max VID			1.250 V
Features		XD, VT

 

Glad you got your T8100 working. My notebook came with one and it's a pretty good little CPU.

-J.B.

 

Jstn7477 : i'm happy too with this T8100. With RMClock the cpu is at 45°C (22°C ext., cpu step @ 6x, cpu volt @ 1,0625V).
I've unplugged the fan, and replaced it by a passive radiator.
I think it will be alright as long as i don't play 3D games...
Playing videos on the net or dvds, the cpu runs at 55°C... still acceptable!
bye
Pierre

 

i've also bought 2 ram of 1Gb @ 667Mhz, in replacement of my 2x512 @ 533.

I've tested them, and found that my cpu temp increased of 5°C.

Do you think that the freq of the ram can affect the cpu temp?

 

Congrats on the successful upgrade.

In response to the RAM temperature question, the RAM could affect the CPU temperature if it were located very close to it, but I doubt by more than a few degrees. 5*C sounds reasonable. I would not worry about it.

Your temperatures are fine; the T8100 is rated for 105*C, and you are nowhere close to that. The Core 2 Duo in my HP runs at 48-50*C at idle, so your temperatures are nothing out of the ordinary either.

 

800Mhz vs 667Mhz FSB doesn't make a difference when it comes to performance though. I hope you meant that it doesn't make a differences if he gets a 800 or 667Mhz FSB CPU to his notebook and not the other way around


Best regards
/Michel Kuic