1Ghz PowerMacs are downclocked 1.25Ghz
According to a MacBidouille, the 1Ghz processors in the current bottom of the line PowerMacs are downclocked 1.25Ghz chips. According to the report, the reader removed the heatsink on his 1Ghz SP. As you can see in the picture, the processor reads "RX1250PE", which apparently means that it is a 1.25Ghz PPC 7455 chip.
I'm really itching to buy a new desktop to replace my wife's Rev.A iMac. But with the PPC 970 on the horizon, waiting seems worthwhile.
Escher
I'm really itching to buy a new desktop to replace my wife's Rev.A iMac. But with the PPC 970 on the horizon, waiting seems worthwhile.
Escher
Comments
Do Macs use the same 3 pin fan arrangement as PCs? \
Lots of Quadra 630's had underclocked 40mhz 68040's
All the Power Mac 6100/60's were underclocked 66mhz 601's
All the Performa 6400's used 200mhz 603e's even if they only ran at 180mhz
Some 300mhz 9600's had 350 and 375mhz 604e's
Apple also sold lots of G3's and G4's with underclocked CPU's - however because of the slow cache used with them you couldn't clock them to their correct speed. I have a beige G3 with a 333mhz G3, but it won't run above 266mhz because the cache is only rated for 133mhz
Originally posted by Stoo
If the 1.0GHz processors were stable at 1.25GHz they'd leave the foundry as 1.25GHz parts. Also, there is a huge consumer (and legal) backlash if you sell overclocked CPUs and don't tell customers.
Underclocking happens all the time.
I just underclocked my PowerBook!
But of course, G4s are entirely different, since it's not Motorola that is marking them down, it's Apple. \
Anyone want to tell me if there's any danger in removing the heatsink? Corroboration is moments away.
Originally posted by Harald
We have one. Brand new.
Anyone want to tell me if there's any danger in removing the heatsink? Corroboration is moments away.
You may need to reapply some thermal paste, and it will probably void yer warranty.
however, there's no way they'll be able to tell you took the heatsink off if you put it back on right, so it's not a huge concern.
Originally posted by alcimedes
yeah, what he said above. you should reapply the thermal paste when done, and it will void the warrenty.
however, there's no way they'll be able to tell you took the heatsink off if you put it back on right, so it's not a huge concern.
No hay pate thermalo.
Bugger.