Mac Pro Ram, 1. Generation, Kingston KVR667D2Q8F5/4G 8x4GB - not recognised

[icyderguru]

Hello,

i got 8x4GB, KVR667D2Q8F5/4G Kingstom Ramsticks. But they arent recognised in my 1. Gen Mac Pro (8x2,4GHZ ES with BSEL Mod. running at 3GHZ). Red lights on the Ram Riser Card, silver lights blinking on the Mac Pro Power Led.

Screen stays black, nothing happening. With my Original Ram its working fine. With only 4x4GB its also not working, tried to plug the ram riser cards up/down.

With a mix setup, old/new ram i can boot but the 4GB Sticks give me a red light on the riser - empty slot in System Profiler as if there wouldnt be any in.

Originally it had 2xDual Core 2,66.

Aimed at people with 32GB Ram 1. Gen Mac Pro (1.1):
Could you please tell me your Boot Rom Version and SMC Version. Maybe there is a Firmware Update i dont know about?

Hardware Overview:

Model Name: Mac Pro
Model Identifier: MacPro1,1
Processor Speed: 2.4 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per processor): 8 MB
Memory: 3 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MP11.005C.B08
SMC Version: 1.7f10



Thanks, Steven

 

[Pressure]

They aren't tested and verified for the Mac Pro.

Ram from Kingston for the 1st generation Mac Pro starts with KTA-MP667AK2.

 

[icyderguru]

Perfect, should have read through the product specification.

Thought any 667 FB Dimm will do.

 

[rikoshay]

Thought any 667 FB Dimm will do.

Huh?? Are you serious? You sound like one of those people who should never take the cover off of any computer.

 

[icyderguru]

Huh?? Are you serious? You sound like one of those people who should never take the cover off of any computer.

They have the same specifications. Yes i know you dont operate the same as me.

 

[Tesselator]

Why does your bus speed say 1.07 ?


Me:
Model Name: Mac Pro
Model Identifier: MacPro1,1
Processor Speed: 2.66 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per processor): 8 MB
Memory: 12 GB
Bus Speed: 1.33 GHz
Boot ROM Version: MP11.005C.B08
SMC Version: 1.7f10
Serial Number: YM1321HAUQ1

 

[icyderguru]

It is because of the Engineering Sample Xeons (you can get them really cheap on ebay) and the BSEL Pinmod which allows them to run 333 instead of 266 resulting in a higher clock speed.

It just displays it wrong, in reality they are running 1333 as well at 3 GHZ.

 

[Pressure]

This could be a redundant question but have you checked that you have installed the ram correctly on the 1st generation Mac Pro?