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Notebook CPU UPGRADE

post #1 of 22
4/2/05 at 9:50am
Thread Starter 
ok guys i want some good information about notebook upgrade. I used to have a omnibook pIII which i sell . Now i own a ACER ASPIRE with a mobile sempron at 1600 Mhz (2800 +) . I would like to know if i can replace this sempron with a 64bit Athlon even if it is a mobile one. I ask acer guys and they told me no but i cant give up so easy . Please help me.
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post #2 of 22
4/2/05 at 10:21am
Somebody correct me if I am wrong I think the Sempron 2800+ is a socket A processor whereas the AMD A64 are S754 & in some cases S939.

So I dont think you can upgrade the socket A sempron for the AMD A64(S754)

Try cpu-z and see whether the processor is socket A or 754. If it is S754 you can probably upgrade it.
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post #3 of 22
4/2/05 at 10:33am
Thread Starter 

Cpu

aida32 and everest say that it is 754 socket (i dont know about s754) but yes it is 754
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post #4 of 22
4/2/05 at 10:36am
Thread Starter 
and the cost of a proccesor is high so if it doesnt fit it would be a waste of money
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post #5 of 22
4/2/05 at 10:41am
Well yes if it is 754 you can upgrade it to the Athlon64. s754 is just socket 754. I just didnt want to type socket everytime(lazy).

The next hurdle is whether the BIOS will support the Athlon64. You will have to ask Acer for that one. If there are other versions of the same laptop with athlon 64's then probably the BIOS will support it.
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post #6 of 22
4/2/05 at 11:42am
Thread Starter 
why do u think the acer guys told me that i cant upgrade it .Are They telling me the truth or ...! I have a feeling that this is not the truth.
Aspire 1362wlmi (mine) cost 700 euro and the one with the athlon (1520) cost 1100 euro. What should i do . Buy the damn thing or not.
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post #7 of 22
4/2/05 at 12:27pm
Quote:
Originally Posted by Pavlos
why do u think the acer guys told me that i cant upgrade it .Are They telling me the truth or ...! I have a feeling that this is not the truth.
Aspire 1362wlmi (mine) cost 700 euro and the one with the athlon (1520) cost 1100 euro. What should i do . Buy the damn thing or not.
Well it depends on your needs. The sempron itself is a decent budget processor and upgrading to the athlon64 will show some increase in performance. But if you use the laptop for general stuff like word processing, browsing and such the diference will be minimal.

Upgrading the processor by yourself will be cheaper but the disadvantage is that the manufacturer wll not provide any support. The response given by Acer is not that surprising since providing support for the changes would be a problem for them and any other manufacturer would probably have said the same. They would also want you to buy their products rather than upgrade...

64 bit computing is still at a beginning stage so the advantages will be very minimal. So If you are satisfied with the performance of the Sempron then keep it.
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post #8 of 22
4/2/05 at 4:28pm
Thread Starter 
i need to run autocad and i think the advantage will be quite some. Anyway wat u r telling me is to buy that cpu.
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post #9 of 22
4/2/05 at 4:57pm
Just checked the specifications on both the laptops & the Acer Aspire 1520 has much better spec's than the 1362. Better graphics card, 80gb hard drive, media card reader and ofcourse the processor. Considering the price difference I think it is worth considering the 1520 rather than just upgrading the processor.
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post #10 of 22
4/2/05 at 5:01pm
Quote:
Originally Posted by Pavlos
and the cost of a proccesor is high so if it doesnt fit it would be a waste of money
If the warranty period has passed, just open up the chassis, and remove the HSF, and it will be very obvious what socket processor it is. If it's S754, adding an A64 would be a breeze.
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post #11 of 22
4/2/05 at 5:09pm
Quote:
Originally Posted by Pavlos
why do u think the acer guys told me that i cant upgrade it .Are They telling me the truth or ...! I have a feeling that this is not the truth.
Aspire 1362wlmi (mine) cost 700 euro and the one with the athlon (1520) cost 1100 euro. What should i do . Buy the damn thing or not.
OEM's always tell their customers to err on the safe side, so even if they told you know, there is still a decent chance that it will work. But you need to find out what voltage the mobo will support, the system chipset, and of course, the socket. There is a possibility that you will need to reflash your EEPROM, in which case, you might need to remove the BIOS battery to make certain that settings are not locked by the OEM. But if it's S754, it's most likely doable; and depending on your system chipset, it will either be very easy, or quite bit of work.
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post #12 of 22
4/2/05 at 5:14pm
It is definately a socket 754. There are no socket A mobile sempons. don't see any reason why you couldn't upgrade the processor, but there could be some kind of BIOS limitation (I can't think of any possibility short of ACER specifically forbidding the change). The mobile Sempron is basically identical to the A64 with the 64-bit extensions disabled and less cache - same core, onboard memory controller, memory pinouts, yadayadayada. One thing you need to consider is power usage. The Semprons are either 25 or 35W. The regular mobile A64 is 62W. You may want to opt for the low-power mobile A64 to ensure your power brick and internal power supply can handle the potential load. What is your power brick rated at?

If you will be running CAD and want to run 64-bit OS, you will see some decent gains with the 64-bit version of AutoCAD.
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post #13 of 22
4/3/05 at 6:02am
Thread Starter 
i dont know how can i see the voltage of the cpu and i dont know wat this "mobo" is.
I am using everest and aida32 . can i get some information from the site of the chipset ;
Guys i want to thank all of u that u are wasting ur time with me . I dont think i deserve this, anyway thanks and i hope i ll manage to change this cpu .
U have to know that most of this is hard to understand for me , (i am trying though).
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post #14 of 22
4/3/05 at 6:42am
Mobo is shorthand for motherboard.
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post #15 of 22
4/3/05 at 12:35pm
Thread Starter 

i found it

ok
my cpu (mobile sempron 2800+ S754 - 1.6 GHz - 256 ) use || 62w 42.7A and 1.4v and die temp 95 c ||

(Athlon 64-2800+ S754 - 1.8GHz - 512KB) use || 89W 57.8A 1.5V and die temp 70° C ||

(mobile Athlon 64-3000+ 1.8GHz - 1MB)use || 1.4V 42.7A 62W and die temp 95° C ||

and dont forget to mention the source

http://users.erols.com/chare/elec.htm#amdmobile mo

so i still have the bios issue ......!
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post #16 of 22
4/3/05 at 4:21pm
Quote:
Originally Posted by Pavlos
ok
my cpu (mobile sempron 2800+ S754 - 1.6 GHz - 256 ) use || 62w 42.7A and 1.4v and die temp 95 c ||

(Athlon 64-2800+ S754 - 1.8GHz - 512KB) use || 89W 57.8A 1.5V and die temp 70° C ||

(mobile Athlon 64-3000+ 1.8GHz - 1MB)use || 1.4V 42.7A 62W and die temp 95° C ||

and dont forget to mention the source

http://users.erols.com/chare/elec.htm#amdmobile mo

so i still have the bios issue ......!

Yes the Mobile Athlon 64 should work in that socket without modification (62W)


While the 89W DTR A64 chip would take a little work.
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post #17 of 22
4/3/05 at 10:04pm
Quote:
Originally Posted by Pavlos
ok
my cpu (mobile sempron 2800+ S754 - 1.6 GHz - 256 ) use || 62w 42.7A and 1.4v and die temp 95 c ||

(Athlon 64-2800+ S754 - 1.8GHz - 512KB) use || 89W 57.8A 1.5V and die temp 70° C ||

(mobile Athlon 64-3000+ 1.8GHz - 1MB)use || 1.4V 42.7A 62W and die temp 95° C ||

and dont forget to mention the source

http://users.erols.com/chare/elec.htm#amdmobile mo

so i still have the bios issue ......!

That information is not totally accurate. The mobile Sempron is only 25W, compared to an A64 62W.

http://www.amd.com/us-en/Processors/..._11613,00.html
http://www.amd.com/us-en/Processors/...E10269,00.html
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post #18 of 22
4/4/05 at 3:47pm
Thread Starter 

u r looking the wrong proccessor

this one with the 25w is for light and thin notebooks (ultra potable) and it is very expensive (and not so much L2 cashe) . Mine is bellow the one u r looking .
So guys , do u think that i am going to have problem with the bios...??
Thanks again for ur answers and ur time. Nice thing the forums ( a lot to learn from)
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post #19 of 22
4/4/05 at 7:39pm
Quote:
Originally Posted by Pavlos
this one with the 25w is for light and thin notebooks (ultra potable) and it is very expensive (and not so much L2 cashe) . Mine is bellow the one u r looking .
So guys , do u think that i am going to have problem with the bios...??
Thanks again for ur answers and ur time. Nice thing the forums ( a lot to learn from)
That depends on what version of the BIOS you have. Look at the date and the NB chipset name in Everest, and you should have a much better idea, and let us know. Usually it shouldn't be a problem, since the the Mobile chips are usually based off the older Newcastle, if your BIOS is newer than July 04. Anyways, look it up, and post it here.
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post #20 of 22
4/5/05 at 5:57pm
Thread Starter 
the bios is phoenix bios and the date is 12/10/2004 .The chipset is Via/S3 UniChrome II Integrated with (north bridge VIA K8M800 and south VIA VT8235) i dont know wat these bridges are.
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