There is USB activity while booting. So might be worth to look at least a little further maybe?
Is there a way to determine if the GPU is...
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Checked R7805, is 10k as it should.
So is it certain that it's a PCH issue? This pretty much makes the board unrepairable, right?
- 9 posts
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820-3787 No image
I have a 820-3787 board that doesn't display any image, also no backlight activation for that matter.
Someone unskilled has clearly messed...Last edited by Naevius; 6 hours ago.
- 5 posts
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PPVCC_S0_CPU is 1.098V as stated in my first post.
So apparently it's not surposed to get PPVCC_S0_CPU without ALL_SYS_PWRGD? Is it possible...Last edited by Naevius; 5 days ago.
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Rechecked ALL_SYS_PWRGD, still not present (0.0V). Tested on both R7103 and R7805
Also checked PP5V_S0_VCORE1/2, both are 5.12V.
...Last edited by Naevius; 6 days ago.
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820-00923-A S0 state, no All_SYS_PWRGD
I have a 820-00923-A board that gets into a S0 state, but no fan spin or image. Since I can't find the correct schematic and brd I'm using the 820-00239...
- 9 posts
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I ordered a donor board from him. Was $15 including shipping, so very good price. Just takes a month to get here
This will have to be continues...
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Reflowed the SMC, no change. I don't have a donor board for this, and not sure if it's worth it buying one for this old machine.
I searched...
- 8 posts
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Checked R5280, seems fine (1990 ohms, should be 2k). Strangly enough I now have 3.42V on SMBUS_SMC_BSA_SDA, and 0.26V on SYS_DETECT_L. I'm a 100% sure...
- 8 posts
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820-2936-B Battery not recognized
I have a 820-2936-B board which was completely dead. There was a short on PP3V42_G3H, which was a short internally in the ISL. Replaced the ISL and the...
- 8 posts
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I'm not sure if I have a compatible known good working LCD. I have a donor A1278 and A1465 with known good LCD assemblies for example. Any easy way to...Last edited by Naevius; 2 weeks ago.
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*Subtle kick*
Anyone has an idea where to look for the issue?
I've ordered a mini-displayport->HDMI convertor, but I have this feeling...
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820-2850 No image
I have a 820-2850 board that doesn't display an image (checked with a flashlight from the back). Backlight also doesn't work.
There was liquid...
- 5 posts
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