I'm finally getting around to adding motherboard L2 cache to my Performa 600, as I found all of the required cache chips (SRAMs and TAG SRAMs) for a reasonable cost from a nearby surplus store.
The cache chips installed with no major issues, but they don't work, and I'm fairly sure it's because I don't have the resistor strapping right. There was a recent video on Youtube of a guy moving the cache chips, plus the resistors and capacitors from a donor IIvx motherboard, and it worked for him. The problem is that I don't have a donor IIvx motherboard, I just have kits of various value resistors and don't know the correct ones to use.
I found a grainy picture of the area on a IIvx motherboard, but I can't make out the markings on the resistors to know their values. I guessed some of the values and tried anyway, but it didn't work, Macbench doesn't show any performance difference. According to the Youtube video, there should be a 5-10% performance uplift with the cache enabled.
Here is the grainy image I found, with what my board currently looks like below it.
If someone with a IIvx could take a clear high resolution picture of the underside of the logic board under the cache area, it would be greatly appreciated.
The cache chips installed with no major issues, but they don't work, and I'm fairly sure it's because I don't have the resistor strapping right. There was a recent video on Youtube of a guy moving the cache chips, plus the resistors and capacitors from a donor IIvx motherboard, and it worked for him. The problem is that I don't have a donor IIvx motherboard, I just have kits of various value resistors and don't know the correct ones to use.
I found a grainy picture of the area on a IIvx motherboard, but I can't make out the markings on the resistors to know their values. I guessed some of the values and tried anyway, but it didn't work, Macbench doesn't show any performance difference. According to the Youtube video, there should be a 5-10% performance uplift with the cache enabled.
Here is the grainy image I found, with what my board currently looks like below it.
If someone with a IIvx could take a clear high resolution picture of the underside of the logic board under the cache area, it would be greatly appreciated.
