- MAC PRO 5.1 LOGIC BOARD BOTH CPU A AND CPU B LEDS MANUAL
- MAC PRO 5.1 LOGIC BOARD BOTH CPU A AND CPU B LEDS UPGRADE
Without any additional comment from me, below is what that service manual says for LED 3 CPU A: It even showed a picture of the bank of diagnostic leds which you described. I found an old apple service manual that goes with your system. Try to eliminate, your system will run better (faster, less lost resources) and more stable. There are always things running in the background doing something. Sometimes the best way to troubleshoot and rule out, and for $250 I'd say worth it. But better.Īnd to play it safe, order a new graphic card.
MAC PRO 5.1 LOGIC BOARD BOTH CPU A AND CPU B LEDS UPGRADE
If it makes you feel better, upgrade to TTPro 6 but I don't think that is best use of money either. So no, I would not rely on VRAM test in TTD. And watch out that they all register for what they should be. Default doesn't do enough.įBDIMMs are hot, keeping those under 73*C is a must. Run SmcFanControl 2.2.x with profiles for medium, high, etc you can switch to. Note on drives, check out MPG and why SoftRAID 4 should be your main disk check.ĭont rely just on automatic fan control. Monitor sensors with Hardware Monitor, set an alert if needed.ĭon't run more than one program, fewer is better and you can have too many 'cooks' even for checking drive status. Strip your Mac down, and use Apple Hardware Test. I don't think TT Deluxe is all that useful. However, we do have an AJA card (Final Cut set-up) that runs to a broadcast monitor and that may have been why the VRAM failed. Ran the Tech Tool Deluxe software that came with our Applecare (which is expired), and it checked the processor, RAM (all 16 GB of it) and the Video RAM. This instance it stopped when we moved the mouse. I don't think it is software, because it actually stopped on the desktop (no program running other than then the finder).
Does this mean the CPU is going out? Or could it be something else? Thing is, we restart and it runs just fine. The red light was on under the CPUA bracket with FAIL. Above the other set of CPU lights is a bracket with a line going to the word "OVERTEMP". Above the first set of CPU lights is a bracket with a line going to the word "FAIL". It was in a row that contained CPUB, CPUA, CPUB, CPUA, GPU. But, inside just above the ram on the motherboard was a brilliant red light. All fans were going (not loudly, just quietly running) on the graphics card, both big fans in front and back of case, and the fan on the HDPro Raid card. This has happened intermittently throughout the last few months. Caps lock light does not come on, but the Mac is still on (Power light is on). All that happens is the video screens go off (like you turned off the Mac). Recently our Mac Pro 2.66 Dual Xenon Mac will be just going along then suddenly (like a light switch) it stops.
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