[Asmithey]

Hi all ye tech wizards..

I have an issue with one of my machines. I recently bought this machine from a friend. It is almost identical to a machine that I own.

Specs:
Intel socket J/ LGA 771.....I know old....But still good.
20 gigs of ram
MOBO: s5000xvn ( I have another machine with this same MOBO...Works great)
Crappy video card...
Two xeon 4550's.
Chassis: Antec Titan 650
Power Supply: Cool Master 700.

The machine was not heavily used. I put two new processors in it. (upgraded) The computer only had 2 gigs of ram. I upgraded to 20.

The only thing different about this machine compared to my one that has the same MOBO is that I used all Intel suggested components like the chassis and power supply.

I have tried all the usually configurations...Swapped the ram, swapped the cpu's. Ran them individually and together.

So what is happening, after about 15 minutes of rendering with all cpu's maxed, the machine will shut off. It will do this with either on or two processor in it. It will shut down a bit quicker with both cpu's on the board. I was watching core temps, and the are only running at about 80c.

I left it idle for two days, just using the web, outlook and Photoshop, and it did not shut down. It is only under heavy load that makes it shut down.

I am thinking faulty or incompatible PSU.

Any ideas?

Thanks

[numerobis]

...and the are only running at about 80c.
...
Any ideas?

ahem...

I put two new processors in it. (upgraded)

model?

[Asmithey]

They are the xeon 5450's..(Harpertown) The TJ max is 100c. but yes...."Only" may have not been the best word.

The cpu's are identical....same stepping and all that.

Thanks,

Aaron

[polynurb]

it could also be a chipset problem.

many of these dual cpu boards do not have an active heatsink on their NB/MC so these can get very hot if the airflow is not like in a server rack case with many blower fans in the middle.

but you should eventually be able to read out the temps of that with something like HWmon.

i had that problem once on an intel Workstation board, solved it with an 40mm fan screwed on the heatsink of the chipset.

[numerobis]

They are the xeon 5450's..(Harpertown) The TJ max is 100c.

Tj is 85°C for e/x5450 as far as i know. http://www.tomshardware.co.uk/intel-dts ... 29460.html
So i think you have to alter your coretemp setting (100°C) to get correct temps.

But this doesn't affect your delta to Tj which controls the throtteling.
Did you check if there is a setting for the shutdown temp in the bios?

But anyway... if it is really more than 80°C this is way too high for this CPU at stock speed and "only" under normal rendering load.

[Asmithey]

I did contact cool master and they said my fan should always be spinning. Which it stopped spinning recently. I think the PSU just heating up.

[Asmithey]

I think I will get the correct Intel server case for the Intel board. Because the Intel server case I have for my other identical Intel board has an air ram over the dual cpu's and one over the ram bus as well. I bet there is a good reason for them. There is a warning label on the air ram that says "Warning do not remove" Hmm.....

[numerobis]

yes, FB-DIMM can run very hot.
But no need to change the case if there is a normal airflow. Just put a 120mm fan on the RAM.

[Asmithey]

Got a new power supply. Same one that I have in my other machine with the same mother board. It works. I rendered an image for 5 hours. No problems. Core temp said the highest registered temp was 78c.