CPU-Z

doesn't it say on the plastic shell?

you can also check cpu-z for stepping.

I got it a while ago without a plastic shell (the one in the photo is from a Katmai).

CPU-Z reports Model 8 Stepping 1 (rev cA2)

imi wrote on 2020-04-18, 11:01:

doesn't it say on the plastic shell?

As he wrote, it didn't come with one and he used another.

sorry, wasn't quite clear to me ^^

http://www.cpu-world.com/sspec/SL/SL3V5.html

There are two 550E SECC2's with stepping cA2:
http://www.cpu-world.com/sspec/SL/SL3V5.html
http://www.cpu-world.com/sspec/SL/SL3N7.html

I don't know if there is software that is able to detect sSPEC numbers.

Isn't it very similar to a 733 SKU (it will be 550 at 100FSB, same 5.5 multiplier) ?

I've checked cpuworld and the stepping is identical to the 550 one.

Also, mine runs at 1.65V, which rules out the high end SKUs.

That is typical for a stepping series. Like this:
sSPEC // step // CPUID // speed
SL3N6 // cA2 // 0681h // 533EB/133
SL3SX // cA2 // 0681h // 533EB/133
SL3N7 // cA2 // 0681h // 550E/100
SL3V5 // cA2 // 0681h // 550E/100
SL3H6 // cA2 // 0681h // 600E/100
SL3NA // cA2 // 0681h // 600E/100
SL3H7 // cA2 // 0681h // 600EB/133
SL3NB // cA2 // 0681h // 600EB/133
SL3KV // cA2 // 0681h // 650/100
SL3NR // cA2 // 0681h // 650/100
SL3KW // cA2 // 0681h // 667/133
SL3ND // cA2 // 0681h // 667/133
SL3S9 // cA2 // 0681h // 700/100
SL3SY // cA2 // 0681h // 700/100
SL3SB // cA2 // 0681h // 733/133
SL3SZ // cA2 // 0681h // 733/133
SL3V6 // cA2 // 0681h // 750/100
SL3V7 // cA2 // 0681h // 800/100
SL3Z6 // cA2 // 0681h // 800/100
SL3V8 // cA2 // 0681h // 800EB/133
SL3WA // cA2 // 0681h // 800EB/133

If you want to be sure you can run the Bootable Intel(R) Processor Frequency ID Utility -see attached

What's high end coppermine runs at what voltage?

Cheers,

Not sure if I understand that question.
The building materials for a stepping series are fundamentally similar. The manufacturers, like Intel and AMD, test the raw products in order to find out how they perform. The best performers will be classified higher, the lesser performers will be classified lower. The voltages will be adjusted conform the demands. In some cases better performers will be classified lower for marketing reasons instead of for their mechanical performance. AMD K6 and K7 are known for this phenomen.
Say, you have, for example, a 600E fsb 100 cpu from the above list and you run it at 800Mhz/fsb 133 and it behaves normally with stock voltage then you have a cpu that is for some reason marketed as a 600Mhz cpu but it is not fundamentally different from an 800Mhz cpu.
Another example... this 850Mhz/100 cpu runs at 1.133Mhz/133 without overvolting. The question is not if it is an 850Mhz -or- an 1.133Mhz cpu because it can do both. The branding that says that it is an 850Mhz cpu and that shows up in CPUZ is done for whatever reason that tickled the fancy of Intel at the time.

PARKE wrote on 2020-04-18, 13:36:

If you want to be sure you can run the Bootable Intel(R) Processor Frequency ID Utility -see attachedbfid_e25.exe

I tried this and it says it expected a 733 MHz speed at 133MHz bus speed, whick makes it a SL3SB or SL3SZ. It worked, thank you.

great, but finding the specific s-spec isn't possible without the shell then?

I tried googling the numbers on the actual die, no results.

imi wrote on 2020-04-18, 17:33:

great, but finding the specific s-spec isn't possible without the shell then?

It seems that determining sSPEC is only possible via the original packaging:

https://superuser.com/questions/1006389/what- … r-on-intel-cpus

Would you get any hints by trying to read the QR code?

Looking up PB 746509-001 online, it shows that it came out of a Dell PowerEdge 2450. It was a CPU card that plugged into the board.

PC Hoarder Patrol wrote on 2020-04-18, 21:15:

Would you get any hints by trying to read the QR code?

Sure, that code is located next to the sSpec number on the side of the plastic SECC cartridge and on the die in the first photo of this thread.

Even without the original shell, shouldn't the BGA chip still be marked? Maybe it's some kind of sample.

we'll know more after someone deciphers the QR code ^^