Search results

Thanks for your reply. I'll try to spend some time on it this weekend, but it seems like it's never been disassembled. When I put the single 400MHz chip in to test, it started right away without any problems. I'll try to check the Vcore to see if it's present or if there's a defect. I don't...

I bought it with that defect, and given the OS installed, I think it hasn't been used for a long time. OSX 10.2 The CPU board looks great, nothing's burned out, and the caps are made of tantalum. I'll take a closer look tomorrow.

I didn't explain myself well. I received an original, unmodified GE Dual 450MHz from the factory. All GEs accept duals; only the early Sawtooth models are incompatible. The CPU board seems defective, but I don't know how to find out what's wrong.

Hi, today I received a G4 Gigabit Dual 450MHz. When I press the power button, it turns on, but the power LED stays off, there's no chime, and it won't boot. I suspected the CPU and installed a Single 400MHz, and it booted up fine, with the power LED on, but no chime. I don't know if this is a...

Do you have a voltmeter to measure the voltage across these capacitors?

Can you post quality photos of both sides of the processor card, without the heatsink? We'll try to locate the voltage regulator and see what Vcore it's set to. And a photo of the processor's inscription. The factory heatsink is too small, less efective.

@herd, looking at the 7410 and 7447 datasheets, the 7410 has A[0-31] and the 7447 has A[0-35], so the 7447 has four additional pads. How can it work on a 7410 socket? The same goes for other pads like AP or DTI.

Yesterday I was reviewing the PDF for this processor, and I believe it does have an L3 cache, but there are only jumpers for selecting speed; you can't adjust Vcore without a soldering iron. If changing the airflow doesn't improve performance, try lowering the processor speed a bit. If the...

I would run these tests: * Remove thermal pad, clean and add good thermal compound, like herd said. * Turn on the rubber fan and the CPU fan. * Disconnect the additional fan under the optical drive. Check the temperature. If it's still high: * Lower the CPU voltage by 0.05V or 0.1V and see...

Hi, I notice a detail: the fan under the black rubber. The original QS fan is upside down. It should be drawing air in, not out. The 12cm fan below the tower draws air out. Try also reverse the CPU fan.

Okay, I'll try that first. When he brings me the CUBE and checks it out, I'll let you know what I find. Thanks.

I don't want to take any credit away from Artmix; on the contrary, I know it won't be comparable to their work. And I'm not suggesting buying it on Aliexpress either; those links were just examples. I usually buy PSUs and similar items from local computer stores; I wouldn't power a Cube with a...

Sorry, I included a couple of Aliexpress links as examples, but they're sold everywhere. I've attached some photos. They're typical PICO PSUs, and they come in different power ratings. I'd just need to know where to buy the CUBE VRM connector to adapt them to the motherboard. And with a...

Maybe I'm going to say something outrageous, but I have this question. Just as an ATX power supply can be adapted to the G4 towers, couldn't one of these Pico ATX PSUs be modified to fit in a Cube? With a "big" +12V power supply. PICO PSU 1 PICO PSU 2 Without the +28V for the ADC, of course.

The G3 that came in the last G3 iMacs that reached 700MHz, if I remember correctly, was the 750CXe, which perhaps improved the internal cache, did they incorporate improvements that could match the results with those of a 7410?

hello. It all depends on the value you give to that specific G4. If it has value for you, look for another cheap one and make one of the two. If it has no special value, look for another one in good functional and aesthetic condition, and use that one.

You can use some like this: usb ethernet dongle USB powered, connect via WIFI and to Mini with ethernet. No driver needed.

I have been doing some tests, and the assembly as per the initial scheme had two problems, when the computer was put into sleep mode, or the screen was put into sleep mode, the image turned off but the LEDs remained on. Also, while it was working, the brightness oscillated. The problem is...

Hello, I received the LED kit yesterday and installed it today. Everything seems to be working, you just have to be careful when opening and closing the display. I made the connection as in the diagram in the previous post, information I found here: Schematic Although I have first checked the...