This is really spooky I have a Optiplex 745 and was thinking the exact same thing :O

So any replies would also be really helpful. But browsing around I found this and I'm not too sure if the newer 45 nm would work. 

Also would there be much of a performance increase i thought of the e5200 due to as you say bang for buck.

Since reading that document i've started thinking that the top processor in a Optiplex 745 would be a E6700 as it's 65nm, got the same 4mb L2 cache and 1066mhz fsb. (i've been using this to compare intel processors) but then again the "bang for buck" might not be so great.

Toby

Not sure if this thread is still active, but I just tried to upgrade my Optiplex 745 Mini Tower.  With no luck.

I puchased a Intel Core2Duo E7500 since the 745 chipset does support the chip and this CPU is a 1066fsb so I figured it would work.  Well turns out the dell motherboard said no! Even with the latest bios update of 2.6.2.

I guess they are not as upgrade friendly as you would think.  I tried to work with Dell Tech Support Chat and they were absolutely no help.  She kept going on about my video card.

Matt

I just tried to upgrade my Optiplex 210L with an Intel E5200 CPU, that did not work. The front led just went orange, so I changed back to my old CPU and it worked fine, as you say, it's usually no danger trying.

But it would be nice if dell could add support for the E5200 CPU since it's really cheap nowadays.

regards,

I have just bought an optiplex 745 barebones and the E5200 CPU to go in it. I assumes it would work but I just got the orange LCD on the MB. Guess I should have searched around a bit before buying the CPU. What is the fastest CPU that this MB can take?

:emotion-1:max cpu is e6700...may be a q6700