#Overclock mac pro 5 1 install#
Can some clever person more up to speed (than me) with Mac firmware and software generally, point me in the right direction as to how I can:Ī) locate the B processor temperature detection logic.ī) modify it so it either ignores the erroneous overtemp data or re-interprets it to give a correct (ish) value which does not cause a red light and a shut down.Ĭ) install the tweaked software so as to avoid/evade the shut down issue? The SMC firmware is updated regularly and is accessible with software debugging tools (MacProSMCUpdate11.dmg).
So far, this is what I have: Dual Quad Xeon X5365s 32 gigs ram SSD for OSX SSD for Win7 Modded 7970, I'm pretty sure this is the fastest card available that still displays boot s. For my 2008 8 core Mac Pro, clocked at 2.8Ghz, the sweet spot is around 450Mhz, a 12 speedup. When the B processor is removed, the machine boots fine and the fans are noisy but can be slowed with software.Īfter much investigation it seems there is a fault/misalignment in the temperature value/voltage being reported by the hardware to the SMC device, which is (mis)detecting an overtemp and shutting the system down when it needn't. Hi, I have a decently stout Mac Pro 1.1 and I'm looking for a bit more power for some animations I've been working on. If you go on an overclock spree and move the frequency slider all the way to the right, the Mac Pro won’t boot anymore, but once you find the sweet spot for your system it can bring a 10-15 speed increase without hassles. All the usual suspects have been tried, replacing thermal paste on heatsinks, replacing spring rivets on Southbridge chip heatsink etc etc. If I try and start it without putting the tray in the freezer it fails to boot and the red light comes on. If I do this it boots fine and runs for a good five minutes before the second processor (B) warms up, I get a red light on the tray and the machine shuts down. The other two have two 2.80 GHz E5462 processors. In order to get the dual processor tray to work, I have to put it in the freezer for half an hour before fitting it to The first computer is equipped with two 2.66 GHz X5355 processors, and runs stable at 3.10 GHz, see figure 2. I have a single processor tray which works fine for practical purposes but I also have a dual processor tray which is where the challenge arises. Its running either Snow Leopard for legacy compatibility or Mojave when I'm in a flashy mood. The widescreen, LED-backlit IPS screen displays a glossy finish and has a native resolution of 2880 x 1800, resulting in pixel-for-pixel accuracy. This should be an interesting challenge for you guys. This MacBook pro 15 inch from Apple has a high-resolution LED-backlit 15.4 widescreen rated at 5 million pixels.
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