Inspiron 1100 processor upgrade...

Question

Ok, I just ripped apart my 1100 because the cpu fan had completely stopped working, and found enough fuzz in the fan to fill a pillow. Anyways, when I pulled the cpu cooler off, the processor (2ghz celeron) was practically glued to the bottom of the cooler, but before I put some artic silver 5 on it and stuff it back in, I was wondering what processor(s) would be the fastest one(s) I could put in there. I noticed the celeron in my inspiron had the same pinout as another random mobo someone gave me. I have heard that the Inspiron 1100 will take up to a P4 2.8ghz/400Mhz FSB, and I noticed that the socket it fit in on the other desktop mobo with a socket 'mPGA478B' I am not going to stick the celeron in that board, for fear of frying it due to a bad mobo. I looked up some different processors on newegg that loosely seem to fit the socket, and I just wanted to know if any of them would work, and if none will, where to get one that would. First: 1. What is the processor with the most L2 cache? (celeron's L2s are really small @ 128k) 2. Will processors with higher FSBs down clock the FSB to work with a lower speed mobo? 3. Will dual cores work? (guessing not, doesn't hurt to ask!) 4. Will any of the Pentium/Celeron Ms work? (my mom's celeron M 1.6 runs almost 3x faster than my current 2ghz celeron) 5. Will only 130nm processors work in the 1100? I am guessing that these will not work, but these are the only 478/single core/400 FSB processors on Newegg... http://www.newegg.com/Product/ProductList.asp?N=2010340343+50001157+1051707443+1302820276+1051107410&Submit=ENE&Manufactory=1157&SubCategory=343 Also wondering how hot will the higher processors get with some artic silver 5... My celeron runs 75C+ on load and 53C+ idle, and other people have gotten them down to around 55C load on the 1100 with new thermal grease. Also, I am already upgraded to bios revision A32. One last thing (I swear) - are any of your laptops overclockable? -Jim

Leo_s84 · Answer

I think you can put any Northwood 533 MHz FSB (Desktop chip, not mobile) in that one. Don't know about Prescotts though.

ejn63 · Answer

1. 512K is the max for a CPU for the 1100. 2. Maybe, but they won't run at full speed. 3. No. 4. No. 5. Northwood and earlier only - no Prescotts, no mobile P4, no Pentium-M, etc.

Dark Penguin · Answer

ok. Thank you.
I finished putting my laptop back together, and now it idles at 36C and maxes out at 56-58C full load!
Still abit warm for my likeing, but its not like I have a desktop cpu cooler on it (my 4400+ toledo idles @ 27C and 42C full load with stock cooler)
Ahh the beauty of Artic Silver 5... and removing an insane amout of dust.
A search for "northwood" on newegg pulls up 2 processors.
http://www.newegg.com/Product/ProductList.asp?N=2010340343&Submit=ENE&Subcategory=343&Description=northwood&Ntk=all
I am guessing the top will not work due to the high FSB, and the bottom (sold out) one will. Am I right?

Message Edited by Dark Penguin on 05-20-200610:21 PM

ejn63 · Answer

You are correct that the 800 MHz bus units won't work. I believe you'll find the 1100 tops out at a 2.8/400 CPU - PowerLeap may still have these (www.powerleap.com).

MaximHansen · Answer

Hi!

Sorry for bringing up a somewhat old post, but I was wondering.

I see that the conclusion was that a P4(Nortwood)@400Mhz FSB was the best that a Inspiron 1100 could handle.

As I am unable to find one (I live in Norway, and I'am not too keen on shipping it all the way over from US or something). I was wondering if there is any chance that a Intel P4 2,8GHz 533MHZ 478pin 512k Cache Northwood will run on the 1100?

A great thanks in advance ^_^

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