How to confirm my CPU type and count in my G4?

[1200XL M.U.L.E.]

About a year ago, during days of better health and all that, I purchased a Power Mac G4 from the shopgoodwill site. The machine was advertised as having a 733 MHz processor and 128 MB of RAM. This is what is printed on the specifications sticker on the back.

Now, after a long long long break, I pull out the machine and turn it on. It chimes and boots. To my surprise, it has a seemingly clean install of Leopard 10.5.8 and the System Profiler is telling me I have a Dual 1 GHz processor setup inside. I open up the machine to take a look inside and I see a large heat sink. that isn't shy to warm up.



Did someone do a major hotrod upgrade here?

What is the best, most definitive method of identifying and confirming my CPU type without removing the CPU and/or the heat sink?

Thanks!

 

[joevt]

Boot into Open Firmware and get the cpu-version property?

0 > dev / ls 
FF828F80: /PowerPC,601@0
FF829878: /chosen@0
...

0 > dev @0  ok
0 > .properties 
name                    PowerPC,601
device_type             cpu
reg                     00000000  00000000 
cpu-version             80010303 
clock-frequency         2376FAC0 
timebase-frequency      00BEBC20

80010303 = PowerPC 7445 or 7455 v3.3 (Apollo 6)
https://gist.github.com/gnzlbg/f4ccfb304b97708c142fd7004df8c761
https://www.nxp.com/docs/en/supporting-information/PPCPVR.pdf

Since you have a dual CPU, you should maybe see two CPUs in Open Firmware.

 

[LaPorta]

Looks like my original 1.0 GHz DP QS heat sink. The profiler isn't going to BS you unless there is some weird, 3rd party thing in there.