Mystery IBM processor

Paul Berger phb.hfx at
Sat May 28 06:35:05 CDT 2016

On 2016-05-28 7:50 AM, Mike Ross wrote:
> On Sat, May 28, 2016 at 5:51 AM,  <malcolm at> wrote:
>> Just wondering if anyone can help us to identify a rather large IBM
>> processor assembly. It weighs around 60 pounds.
>> The frame has a P/N of 34F5089. The frame houses 9 modules, 6 of which are
>> installed. The module we removed for inspection has a P/N of 34F0615.
> If you opened up one of the modules it would look like this... bunch
> of ECL chips with copper heatsinks conducting heat to the outer alloy
> casing where the water cooling manifolds would be bolted on. And all
> that internal cavity with chips and heatsinks was filled with a...
> sticky goopy fluid to aid in heat conduction. Power consumption...
> enormous!!
> Mike
> 'No greater love hath a man than he lay down his life for his brother.
> Not for millions, not for glory, not for fame.
> For one person, in the dark, where no one will ever know or see.'
34F5089 is used in a number of models of 3090 processor 34F0615 is not 
found and is likely a manufacturing number, look for part numbers that 
have the letters FRU in from of them, they are the field spare part numbers.


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