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| Need help determining the speed of PowerPC G3 CPU |
Posted by: jasa1063 on 2022-04-30 16:42:36
I just picked a G3 CPU for my Beige Power Macintosh G3. I believe this is a 333MHz CPU as indicated by the 333W portion of the number on sticker in the 2nd picture, but I would like to very that. The CPU was advertised as 300MHz. I currently have it the Beige G3 Power Macintosh jumpered for 333MHz and the CPU is working properly. Any help would be appreciated. |
Posted by: MOS8_030 on 2022-04-30 21:03:44
The chip speed is probably marked on the package under the white "gasket". However, it would be best not remove it as you don't want to damage the die with the heatsink. I believe that 333W is the module speed and if it's running ok at 333 well then there you go! 🙂 |
Posted by: jasa1063 on 2022-04-30 22:05:46
The chip speed is probably marked on the package under the white "gasket". However, it would be best not remove it as you don't want to damage the die with the heatsink. I believe that 333W is the module speed and if it's running ok at 333 well then there you go! 🙂 Thanks for the info and it continues to run well at 333MHz. This was a nice speed bump from the 233MHz CPU it had originally and I got the added bonus of a 1MB vs 512KB L2 Cache! 🙂 |
Posted by: Byrd on 2022-05-01 00:29:20
The clock speed of the CPU is usually listed on the core itself, but this can wear off over time. You know where to go now - 366 or 400 Mhz 🙂 |
Posted by: waynestewart on 2022-05-01 07:28:58
That's how my IBM 350 is marked |
Posted by: MOS8_030 on 2022-05-01 08:27:07
The clock speed of the CPU is usually listed on the core itself, but this can wear off over time. You know where to go now - 366 or 400 Mhz 🙂 Motorola laser marked the die on most parts. Apparently IBM marked the substrate rather than the die on their parts. |
Posted by: jasa1063 on 2022-05-01 12:05:15
The clock speed of the CPU is usually listed on the core itself, but this can wear off over time. You know where to go now - 366 or 400 Mhz 🙂 My target was one speed bump above 300Mhz, so I am perfectly happy with 333Mhz for now. especially with everything running stable. 🙂 |
Posted by: jasa1063 on 2022-05-13 17:15:33
Well I just bit the bullet and tried the CPU at 366MHz and so far so good. That is a solid 133Mhz jump from where I started. Not too shabby🙂 |
Posted by: Byrd on 2022-05-13 17:24:01
Guess what the next random person on The Internet suggests … 400 … 🙂 |
Posted by: jasa1063 on 2022-05-13 18:03:04
Guess what the next random person on The Internet suggests … 400 … 🙂 I just tried 400MHz and it's not stable, so 366MHz it is. |
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