#Overclock mac pro tower pro
The 5900MB/s is achieved through multiplication via the PCIe switch.Īrmed with the Amfeltec Squid PCI Express Carrier board with four Samsung M.2 SM951 AHCI flash blades and the ASUS GeForce GTX 980 Ti overclocked GPU, our 2010 Mac Pro tower has been transformed into a 'beastly hot rod.' All that's missing are the flames and exhaust pipes. Even in the case of the Squid card in the PCIe 2.0 x16 slot 2, each individual blade is limited to 1500MB/s. When it comes to the Mac Pro tower, the NVMe blades won't run any fastet than AHCI blades since the PCIe 2.0 x4 slots top out at 1500MB/s. You will most likely never be able to boot off of them, certainly not into OS X." CAVEAT: MacVidCards states ".you will only be able to use (NVMe) drives for storage of data.
#Overclock mac pro tower driver
However, a driver is available from MacVidCards that provides support for NVMe blades on all models of Mac running OS X. I've put it up to 3.1GHz from 2.8GHz before without problems, though the limiting factor in my case was the overclocking tool that was kind of a hackjob and would cause. It has an air cooling system, but it seems to be quite a good air cooling system with nice heatsinks. That's to bring to your attention that OS X does not support external, third party NVMe flash blades. You can overclock the Mac Pro, just not as much (wow, 45 is impressive). NVMe versus AHCI flash? You may have noticed that we put "AHCI" next to "SM951" throughout this article. One reason the Amfeltech Squid board runs cooler is likely due to the method of mounting the SM951 AHCIs that leaves an air gap above and below, allowing the PCIe bay inlet fan to do a better job of keeping the SM951 AHCIs cool. But those temperatures are significantly lower than the 174F reported when the SM951 AHCI was mounted on other M.2 PCIe boards without heatsinks. Those are right at or just above the recommended maximum of 158F by Samsung. The sensors of the four SM951 AHCIs reported high temperatures of 158F, 160F, 158F, and 165F. What about heat? We ran our storage stress test (constant recycling Blackmagic Disk Speed Test for several minutes). However, the OS X installer warned that the resulting volume would not support FileVault or Recovery Partition. We installed OS X 10.11.1 El Capitan on the 4xSM951 AHCI 2TB volume. (In the photo below, the Squid card has room to breathe between the GTX 980 Ti below and another M.2 card above.)īut does it boot OS X? Yes. And even with four SM951 AHCIs, it does not encroach on the adjacent slots.
#Overclock mac pro tower full
It accomplishes this feat by taking full advantage of the x16 bandwidth of the #2 slot in the Mac Pro tower. These transfer speeds of the Amfeltec Squid PCI Express Carrier board with four Samsung M.2 SM951 AHCI flash blades are the highest we have ever recorded on any Mac.
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