second cpu is not showing.

[samuri1983]

Hi I just installed a second cpu into my pc and it is not showing up on the system basic information. do I have to do something for my pc to recognize it?

 

[USAFRet]

Hi I just installed a second cpu into my pc and it is not showing up on the system basic information. do I have to do something for my pc to recognize it?

As you have not told us what PC or motherboard you have these two CPU's installed on, it is impossible for anyone to say what you might need to do next.

 

[samuri1983]

Ah sorry. It is a Dell Precision 690 workstation, 0MY171 mobo, 2x Intel Xeon 5060 dual core 3.20GHz cpu, 4GB RAM, Geforce 8800GTX gpu, 1Kw psu.

 

[inzone]

Usually I tell people that have a Dell to contact the Dell support because Dell makes it very hard to add or make changes to their computers. It's like you bought it from them but they want to control what you do to it.
There may be a setting in the bios to tell the motherboard to use two CPUs instead of one.

 

[samuri1983]

thank you inzone

 

[logainofhades]

Do you have any ram installed in the slots for the second CPU? Generally there are ram slots for each CPU in such a board.

 

[samuri1983]

I did not know this. I have 2x2gb or ram in slot dimm 1 and dimm 2. Im looking at pics that I took and and there is an arrow from cpu 1 to dimm 1. i'll shut down and see if cpu 2 has an arrow to a different dimm slot. thanks

 

[logainofhades]

There should a set of dimm slots for both CPU's. I don't recall ever seeing a dual cpu board that didn't have a set of ram slots for each CPU.

 

[samuri1983]

I rang the only Dell tech support number that would ring for me and it was to dell in the USA. the line was really bad and I couldn't hear him all that well. I will have to wait til tomorrow to ring and Irish line. Would any body here know the correct configuration ie CPU 0=Dimm slot ? CPU 1=Dimm slot 1. all help welcome and appriciated.

 

[USAFRet]

From an earlier Tom's discussion on this same motherboard: http://www.tomshardware.com/answers/id-1720334/post-issue-dell-precision-690-0my171-rev-a01-board-downgraded-bios-a01-a08.html

"I have the same board and had the same problem, it is not the board its the system, only win 7 64 ultimate and win 7 64 professional register the second chips, all the other os systems are designed for lower end use's, hope this helps because it took me weeks to suss out that"

Also, check the BIOS version.

 

[samuri1983]

I read that as well thanks USAFRet. Both cpu's are showing up on the boot menu the second cpu is not showing up on windows system information in the cotrol panel. my OS is windows 7 pro 64bit.

 

[logainofhades]

ftp://ftp.dell.com/Manuals/all-products/esuprt_desktop/esuprt_dell_precision_workstation/precision-690_user%27s%20guide_en-us.pdf

 

[logainofhades]

Are you looking in task manager to see how many CPU's windows is reporting? Make sure you set it to display one graph per cpu.

 

[samuri1983]

Thanks for all your help. I am going to leave it til tomorrow and ring Dell support and find out from them what I need to do to get it working right. I will let ye know what they say after they hopefully help me.

 

[samuri1983]

Hello again people. I want to thank everybody that tried to help me with this problem. It is all sorted now and both CPU's are running smoothly thanks to the help of Vini a Tech support worker from Dell. Inzone was 100% correct there are BIO's drivers from Dell that are needed to get windows 7 pro 64-bit to recognize the second CPU. So it is just best to give Dell a ring and they will sort you out but do put some time aside to get it done as in total it took over 3 hours to get sorted. As for what DIMM Slots to have the Ram in to have both processors working, if you have 2x2GB RAM place one in DIMM Slot 1 and the second in DIMM Slot 2.

 

[samuri1983]

Hi everybody again, sorry about this but I just want to give a bit extra info on the second processor install incase other people run into a problem and get led here like the way I did and got so much help. With the Dell precision 690 workstation when you add a second CPU and it is up and running it will show on your windows system setup as it did on mine that I have 2 processors and 4GB RAM installed and only 2.7GB RAM usable. This 1.3GB is not missing it has been taken by your computer for "HARDWARE INTERFACE" which means it is beening used for the 2 CPU's to work together. Don't worry this is normal and can be viewed in the "resource monitor" under "memory". Thanks again for everybodys help and input.