can 771 processor fit on a 775 motherboard?

Question

i was planning to buy the new intel processors that were just released.
would a intel e5420 xeon processor socket 771 fit on a motherboad that is socket 775?

Answer 1

Hi. The 771 has holes and the 775 has pins, so no.

Edit. A LGA setup (Land Grid Array) is used on both but still no. Different number of contacts.

Answer 2

no ross,although they both use similar processors the socket lga 775 and 478 are totally different sockets,and incompatible the p.c i am currently using is a socket 478 using a pentium 4 hyper threaded 3.2ghz and i was offered a pentium D processor but couldnt take it as the pentium D is a lga775 chip however there are loads of processors avalible for lga775 socket,and even the newer core 2 duo processors use the 775 socket although some of the least modern boards require a bios update to make them dual core compatible the pentiumD processors are farely inexpensive and are actually very good processors,i have a acer desktop with vista premiumand it has a pentium D processor,and its very fast,even with the onboard radeon xpress 1250 graphics the p.c is pretty fast the only processors that fit into socket 478 are probally the pentium 4 ,however these are still good processors,although slow compared to todays dual core processors good luck mate!

Answer 3

Of course,this being the internet,smug know it all have to put in their two cents even if they know nothing about what they are talking. The reality is,it HAS been done.

Heres an example. http://www.overclock.net/t/1384920/good-news-for-the-lga775-now-771-is-available-to-convert-to-775-motherboard. Here,he used a LGA771 chip in a 775 board. In fact,they are not "totally different". They are almost identical,except intel swapped a few pins to make them incompatible.

Its not for the unskilled,and in fat,most people alking the question in a place like this cant do it,but to act like the OP was a total moron and state with such certainly that its not possible just goes to show you how much confidence you can put in these "so called experts"

In fact,this happens again and again,usually from the same people. I remember buying a windows mobile phone about 8 years ago. There various questions about if it would be possible to enable to onboard GPS. At the time,most people didnt understand what "AGPS" was. (its GPS that can also use cell towers to help fix its positon) Everytime the quesution came up,the so called expert would ridicule the poster,and tell them "Never,because the phone only has AGPS so we will NEVER get real gps,so shut up and stop asking". A couple months later,sprint pushed an update that enabled GPS.

And of course,going back to 300mhz Intel Celeron days,there were the questions about whther you could multitask with a 300A. The idea was,they overclock so well,and are so cheap,it would awesome if you could use two in a smp board. Of course the "Experts" came back with their smug atttitudes saying "No you cant,not now not ever,because the celeron is a low end chip thats TOTALLY DIFFERENT and it WILL NEVER work in an SMP Configuration. Get it now? If you want SMP go buy a pair of PIIs or Xeons. Quit wasting our time,use the search feature becuase this gets asked every week!!!.

Then a month later,some guy in china with a lot more balls than I had,tried drilling a hole into the board and accessing the SMP pin on the back of the die,and had two Celerons running on a SMP slot 2 board. Turns out,the 300A wasn't SIMILAR to Xeon,it WAS a Xeon,without the L3 cache.

So now Im going to get smug and condescending. Before you mouth off abotu soething you think your an expert on,check your fact,and dont be an asshat,because a simple Google search will tell you that quite often,we are wrong about whats possible. If you dont KNOW,but just suspect,dont act as if you do.

The answer to this,with what was known when it was answered was," As far as I know,no one has been able to try it. The pinouts were subtly changed between the two,presumably to make them incompatible. The BIOS may also have issues,but in the past,they have shown themselves to be rather flexible. It may well be possible,but you would need a source of motherboards that you could destroy,and some chips you could fry as well. Its unlikely your going to get it right the first time. If it is possible,it will probably be done by someone with acess to throw away parts,with quite a bit of technical know how.Its unlikely it will work particularly well and usually,by the time you get everything,and have it all working,you end up having spent as much as just buying something that works out of the box.

Usually these sort of hacks are done by someone who does it as much for fun as to get a working computer out of it,and often they have access to a bunch of parts that no one cares about. (for instance,if you work in a data center where they have hundreds,even thousands of these servers,you may well have a hundred of those cpus sitting in a box,where you upgraded them to a faster model,and dozens of boards sitting around,some dead,some simply "flakey" but good for testing,and some with obvious problems like bulging caps,which can be fixed 100%. No one cares what you do withthat stuff,because its junk to them,and even the fixable boards would never be trusted in a product server,so if you spend your lunch break hacking on baors with a soldring iron,no one will care. If however,you go buy the stuff from ebay,you probably end up spending as much as a modern cpu.

Answer 4

No it has 771 holes, the 775 has 775 pins. All the data, power, etc., transfer through the pin's are different anyway.
Socket J, (771) http://en.wikipedia.org/wiki/Socket_J
Socket T,(775) http://en.wikipedia.org/wiki/Socket_T

Answer 5

There is a very simple mod you can purchase that will do it. Search for 'lga 771 to 775 mod'. Typically sold on ebay.