cpu support based on amd 785gx chipset

[BioSs]

my nephew laptop here and his want to play around to upgrade the cpu from Athlon II p340 Dual core 2.2ghz. Any suggestion or advice??

Here's the spec of laptop under cpu-z

Hp dv5 2134us
chipset : N.chip 785gx S.chip sb800
cpu : Athlon II p340 --->> (want to upgrade triple or quad core 25w)
dual channel 1600mhz pc1333

Here's what I found in here someone used Phenom II n860 based same 785gx chipset mobo but 35w. http://forums.anandtech.com/showthread.php?t=2294942

I found a phenom II p840 for under 18bux. don't will it work?

 

[mikeymikec]

You would need to find out what CPU wattage that board is capable of handling. I'm guessing based on it having a low-end CPU to begin that the board can't handle a great deal more. There might be a clue in the system specs on the HP site, if they say "here are the CPU choices that this model sold with", look up each of those and find out the one with the highest TDP. With a laptop you need to be more careful because the HSF needs to be able to handle the CPU as well as the board (whereas in a desktop one has far more options wrt HSFs)

I upgraded a customer's Dell desktop a couple of years ago, AM2. It had a Sempron in, and I put in an Athlon II X4 630 which appeared to work fine, though a year later the board died. I suspect the board could only realistically do 65W.

 

[BioSs]

Thanks MikeyMikec for tip.

Based on my current cpu spec and it's 25w.. I need get exact 25w triple or quad core?
Family AMD Athlon II Dual-Core Mobile
Model number ? P340
CPU part number AMP340SGR22GM is an OEM/tray microprocessor
Frequency ? 2200 MHz
Bus speed ? Dual-channel 533 MHz DDR3 SDRAM Memory controller
One 1600 MHz 16-bit HyperTransport link
Clock multiplier ? 11
Package 638-pin micro-PGA
Socket Socket S1 (S1g4)

Architecture / Microarchitecture

Microarchitecture K10
Processor core ? Champlain
Core stepping ? DA-C3
CPUID 100F63
Manufacturing process 0.045 micron SOI
Data width 64 bit
The number of cores 2
The number of threads 2
Floating Point Unit Integrated
Level 1 cache size ? 2 x 64 KB instruction caches
2 x 64 KB data caches
Level 2 cache size ? 2 x 512 KB

 

[JWade]

the P series should all work fine, they are 25w, the P860 is 2ghz triple core. or go with the slower but quad core p960 at 1.8ghz. It would be no problem going up the the 35w processors, system and cooling will handle it, but not the 45w ones. the p650 is dual with more cache and 2.6ghz. the n660 is 35w and 3ghz dual. really though unless he needs the three or four core, price wise I think the p650 is best, speed increase, cache increase, same thermal. the speed increase of 600mhz over the triple core may outweigh the extra core

 

[BioSs]

the P series should all work fine, they are 25w, the P860 is 2ghz triple core. or go with the slower but quad core p960 at 1.8ghz. It would be no problem going up the the 35w processors, system and cooling will handle it, but not the 45w ones. the p650 is dual with more cache and 2.6ghz. the n660 is 35w and 3ghz du


Thanks JWade

I need quad core and more caches.. frequency nah.. it'll drain more battery and create more heat. More of time my cpu running 50% at 0.8-1.2ghz that created 50-60c on p340 Athlon II

I'm going to search p960 to see any great deal at ebay. don't know to spend more then 50bux on this low end lappy.

 

[mikeymikec]

I don't think I can offer much more advice as I've never swapped CPUs in a laptop.

 

[BioSs]

Update.

I upgraded... Phenom II N850 2.2ghz triple core working great. Cpu temp increased 3-5C at 70-80% over the Athlon p320 25w

thanks everyone

 

[mr4r4n]

i hate to bring back up an old thread.. but i have a toshiba laptop with a athlon p340 and a trashed laptop that has a phenom n660 and was wondering if it would work. as until i can afford a real upgrade it seems like it would be a decent computer to hold me over until then.