Can you use a S775 Intel Xeon on a S775 desktop motherboard

[Stonedofmoo]

As above?

Company I work at is upgrading a bunch of dual core servers to quad's and so I was wondering if the old dual core chips can be used on desktop boards.

Might sell them on if so rather than bin them!

 

[dave_beast]

No, they won't work.

 

[MeatLoaf]

yed should be fine

 

[vertica]

It depends which generation of Xeons they are.

IIRC the 65nm chips were LGA771 so wouldn't work (they look almost identical to the 775 chips, same size/shape but obviously have a slightly different pin out)
The 45nm chips were LGA775 so would work (if the BIOS is compatible)

Worth a check just to be sure

 

[dave_beast]

They won't work as the memory controllers are different on server chips.

 

[Justintime]

What? I had a Xeon X3230 (Basically a G0 65nm Q6700) 775 on an Asus Blitz Extreme and a Xeon X3370 (45nm Q9650) on a P5Q Deluxe.

 

[dave_beast]

Not sure it'll work on the dual core Xeons, tried this at work last year on a couple of E3110s and it didn't, could have been the motherboards?

 

[Justintime]

Had that very cpu on a Gigabyte DS4 EX38, basically its just an E8400 C2D. Motherboard support can be sketchy when running these but theres really no difference from the normal 775 parts.

 

[Stonedofmoo]

lol righto, a mixed bunch of responses there then

I guess it's a case of trying and see.

 

[Justintime]

Are the servers definetly 775 though? What board are you going to try on?

 

[Stonedofmoo]

Well the servers are Dell R200's which often have this processor in it http://ark.intel.com/Product.aspx?id=28034

That is listed as a S775 CPU, so I'm assuming the dual core processors on that same board are also S775. It's that generation of Core2 though, 65nm.

 

[axer]

I dont know why you've had so many misinformed responses but in summary, any Skt 775 xeon will work on desktop based motherboard providing the BIOS supports the relevent architecture i.e. if you want to use 45nm chip with a 1333 FSB, check to see if the desktop board has support for the desktop 45nm and 1333 FSB variant.

Skt 775 xeons do not *require* ECC RAM and don't use registered RAM at all and as such will work with regular non-ECC desktop RAM. I think people in this thread are confusing Skt 775 xeons (which are identical to their desktop counter parts bar the fact they are cherry picked) with their Skt 771 brothers which are a different bag all together!

 

[axer]

Well the servers are Dell R200's which often have this processor in it http://ark.intel.com/Product.aspx?id=28034

That is listed as a S775 CPU, so I'm assuming the dual core processors on that same board are also S775. It's that generation of Core2 though, 65nm.

We've got plenty of desktop chips and desktop RAM in R200's and visa versa (Xeon Chips with ECC and non ECC RAM in various Gigabyte desktop boards).

 

[Stonedofmoo]

Makes sense, cheers fella

 

[Justintime]

which are identical to their desktop counter parts bar the fact they are cherry picked

Don't think the picking is anything special or different, just the name programmed in to be honest. Also overclockingwise i never found them better.

I dont know why you've had so many misinformed responses but in summary

I don't see that many misinformed posts tbh.

 

[axer]

Don't think the picking is anything special or different, just the name programmed in to be honest. Also overclockingwise i never found them better.

The Xeon counterparts often run at a slightly lower voltage due to their 24x7 operation and often being passively cooled and hence why they are generally the better chips.

I don't see that many misinformed posts tbh.

Several people have said its not possible when it absolutely is - clearly these people are misinformed?

 

[Justintime]

The Xeon counterparts often run at a slightly lower voltage due to their 24x7 operation and often being passively cooled and hence why they are generally the better chips.

Just about any C2D will do a lot lower vcore on stock Like i said i've had quite a few of the 775 xeons, the VID range and TDP were exactly the same as the consumer counterparts. Consensus is that theres nothing in it, no special binning or cherry picking and i found overclocking was about on par as well with the consumer parts, nothing special. As to what picking process goes on, you or me can't say for sure as theres no definite answer.