I did buy this from Dell, It is certified.
I was on the phone with there techs today seeing if I could make it work. it is possible listed because some t3500's have the Xeon e5507, which can support up to 144gb. I am still awaiting his response.
If you click the 1st link I posted, click more details on the SNPP9RN2C/8G. There is two lists. the bottom one shows
Manufacturer Part# : SNPP9RN2C/8G
Dell Part# : A6353143
Compatibility
This product is compatible with the following systems:
M5200n Laser Printer
Precision Workstation R5500
Precision Workstation T3500 <----
Precision Workstation T3600
Precision Workstation T5500
Precision Workstation T5600
Precision Workstation T7500
Precision Workstation T7600
(this is still the 1st option if I put in my service tag)
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Thank you for linking compatible ram, I 100% know now what ram is compatible. However, I was not looking for compatible ram. I was just wondering if the ram was not working because I was missing a step some where on the installation. I am new to the Xeon cpu's.