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Released online on January 16, 2009, the Inspiron 1545 is a 15.6" budget PC laptop available with 3 or 4 GB of RAM. It succeeded the Inspiron 1525.

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Maximum CPU for this laptop?

Does anyone know the fastest cpu I can put in this laptop and if it supports quad core?

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T9900 is compatible with Dell Inspiron 1545.

I only know this because i have performed the upgrade on this laptop.


Hi Omar

I bought a T9900 on eBay, and it doesn't seem to work in my Inspiron 1545. I'm running Win10 Pro from an SSD and have 4GB RAM. From many forums I believe this processor should work. I've switched back to the T4500 and it works. I've swapped back and forth a number of times now, and all the machine will do with the T9900 installed is briefly flash the power light on the front when I press the power button. I don't get anything at all on the screen, no fan, nothing. Can't even get into the BIOS (which is on the latest version A14). Do you think I can safely complain that the processor I bought on eBay is faulty and ask for my money back?

BTW, I am good with practical electronic stuff. I take anti-static precautions, use MX-4 thermal paste, etc, so I don't think I've "damaged" the processor. I've recently replaced keyboards in two ASUS UX31E ultrabooks (complete dismantle and rebuild). Also just upgraded an ACER Veriton x270 from E5300 to a Core 2 Quad Q9650 sucessfully.


I have working T9800 on my 1545.. working like a charm with 8GB ram upgrade.. works fine on Arch linux & Windows 10


I am in the same situation. I tried a T9900 and it just flashes the light when you hit power. Is it DOA?


Hi Rodney

I am begining to suspect that there may be more than one type of motherboard for the Inspiron 1545. I returned the T9900 processor I bought and got one from somewhere else, and it also didn't work!


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Gewählte Lösung

The Inspiron 1545 can only accept dual-core Core 2 Duo or Core 2 Extreme chips. A Core i3, of any generation, is a no-go.

The good news is that it can take any Core 2 chip, which means you can install a 3.06 GHz T9900 or X9100 and it will work fine. A T9800 (2.93 GHz) will give it about a 40% performance boost as an example.

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Hi, I have a Dell Inspiron 1545.

I have found a Quad Core Socket P CPU on the internet would you say it is compatible.

My current Processor Socket is Socket P.


I have a dell inspiron 1525, 4gb ram, win7 ultimate, and just upgraded my cpu to a x9100s p socket now its not booting


actually it will work you just need to try booting a LOT a person did this look it up


can i use i3 in my laptop


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Gigabit87898 wird auf ewig dankbar sein.

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