Put likes/dislikes, comment below and subscribe for more repairs on this channel, thanx! In this video we go over gaming motherboard Z97-G45 and while diagnostic we see that our chipset is "punctured" on two powers to it.
Would be nice if you could give sort of a checklist what to check when diagnosing a motherboard and what the approximate voltages/Ohms should be otherwise, Great Vid! big thumbs up from South Africa
You should place the camera overhead, so we can see what your'e actually probing... Its very hard to see what your're actually doing, for the 1st half of the video. Thanks for the videos anyway.. Keep up the great work!!!
I do agree with you but I have something to add. Check out BareVids Amplifier repair ru-vid.com/show-UC9GiteyeFSMlmqyBAt9oM9w Sit through a few of his streams and you will quickly understand the basic topology of mosfet power circuitry. Another great topic to research is Buck Converter topology as this is essentially how your motherboard steps down the 12v to 1v and other voltages. If you watch Eli Tech he is going from ground to the gate or collector of the mosfet to confirm that the entire power rail is down. Since there is a short to ground overcurrent protection will kick in not allowing the board to turn on. We probe in peace!
I'm not sure but ,if anyone else trying to find out electronic component repair try Saankramer Electronic Magazine System (just google it ) ? Ive heard some interesting things about it and my co-worker got amazing success with it.
Not certain about the points made but ,if anyone else needs to find out about repair guides try Saankramer Electronic Magazine System ( search on google ) ? Ive heard some awesome things about it and my work buddy got great success with it.
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When he says "Hub" he's referring to the PCH (Platform Controller Hub), older computers used a North Bridge and a South Bridge for Intel based chips. AMD had its own PCH called Fusion Controller Hub. Now Intel and AMD simply refer to it/them as the "Chipset", meaningless trivia but here we are.
Didn’t know this, however to me, that clearly looked like the chipset. I’ve been calling it chipset for some time, but I do remember the north and south bridge, even older AMD boards had this because I’ve owned amd my whole life and I remember upgrading heat sinks on the n/s bridges. Though eventually I noticed newer mobos just had one bridge and they resorted to call it “chipset”
I seem to remember most chipsets back in the day after IO moved from a VESA slot of the '486s to the mainboard when pentiums 1st came out, both AMD and intel had a north and south bridge, later on around the time of the via KT133 chipsets AMD had a lot of extra speed with the magic pixie dust of the inter-chipset communication in the form of a dedicated ' hypertransport' bus, but intel was stuck at FSB speeds between the 2 chips , the oddball of the bunch was the SIS630/730 which was a single chipset that had everything in it, and for once it was a SIS chipset that didnt give a lot of headaches... and performed well enough for the time
Awesome thank you, I'm a PC tech from Bolivia, never knew you could buy a Hub Chipset and re-ball it, and checking the voltages was great, we don't have anything like this over here
Thanks. That was actually potentially helpful. It's unbelievably hard to figure out the minutiae of not only everything that can go wrong with a motherboard, but what did, which is often first assessed by figuring out what didn't.
Nice video and hope to see more in the future. Quick FYI: Some desktop MOBOs can have a resistance of less than 50ohm on the 5v line (with nothing connected or inserted). I have 2 Intel boards that show 52ohm and 24ohm on them and work fine. Th is can fool some people used to healthy rails showing 500+ on them. My first desktop board repair had this. I spent 2 days searching for the 24ohm short on the +5v rail. Two days of prodding and marking data because, surely, 24ohm is a short. Always. Nope. Got fed up just before taking the PCH off and tested it. Booted right up, lmao. Noticed more like it after that. If it's showing 20+ ohm and it isn't taking too much current on power injection, it just may be good. Now, here the PCH was getting hot on standby. That's obviously a definite short so look for that but of it stays cool even with powerinjection, test it *FULLY* (CPU, one stick of RAM, all fans plugged in, etc).
Whenever I use a multimeter, I just blow fuses lol. If I attempted to use solder on a small chip, the whole board would get it! Impressive electronic knowledge.
I'm proud your experienced to troubleshoots a dead motherboard. That's the most underrated and comprehensive boardview of that moboard component part operations video tutorial ever so far. But I need help a quick question my friend about my Asus P4P800-E Deluxe motherboard. This is my first time trying to resurrect/repair my dead motherboard. Only certain part I repaired and changed/replaced already the (1) BIOS chip, (2) capacitors, (1) IC-driver controller to mosfet, and (2) transistor mosfets (negative side body) near side of the CPU processor. I have the PTi9 LCD PCI Diagnostic Analyzer Tester...indicates LED lights of +12V, +5V, +3.3V, and Reset are good (lights on) & fan runs means no problem on transistor Mosfets anymore as I double tested too that 12Volts are running good designed to run CPU processor. But the PTi9 LCD PCI Diagnostic Analyzer tester still telling me that there's signal error, it says check the CPU and power box (power supply is tested good all +12V, -12V, +5V & +3.3V) and the other two indicates that RST and FRAME are both Invalid shows in PTi9 tester. Also I'm seeing LED lights of FRAME, IRDY, and SYSClk are off, it shows in the PTi9 PCI Diagnostic Analyzer tester. I have the "Boardviewer" software (to see the schematic diagram of P4P800-E Deluxe board) that I clicked the CPU drawing part and looked at the RESET, looked at the motherboard then tested the Resistor that is soldered/connected on negative side that the value is correct that has no problem. The two pin reset (for the button reset) doesn't work when I pressed the button. If you have time, please try to look on the Boardview in part of the RESET pin because it's not working. I don't know about that FRAME & RST where to troubleshoot that. I touched the CPU processor it doesn't make any at least build up heat/warm. I tested the CPU processor from my other Asus motherboard, it's running fine. What part of the motherboard should I trouble shoot on that P4P800-E Deluxe? This part I'm lost already. I need help, any idea? Great help would be appreciated so much. Here's what I did, I plugged one 1GB stick ram, 3V battery button, fan for CPU, plugged-in the PTi9 Post Diagnostic Analyzer Tester, unplugged CPU processor and 12V-4-pins, then plugged the 20-pin power supply, then turn it on, everything runs even though it's unplugged CPU and 12Volts-4-pin. On the tester it shows LED lights on at the +12Volts, +5Volts, 3.3Volts, RST, CLK, except FRAME, IRDY, and SYSClk. So, it means the issue is at the Power Block of CPU because CPU doesn't build up warm/heat. Problem is still don't know where is the one that doesn't provide either the +5Volts or 3Volts or 1.2Volts. Intel 82865PE MCH Chipset build up its own heat but it has its own original heatsink since P4P800-E Deluxe was built in & sold in the market.
I also thin if you can adjust the Camera so we can always see what you are probing would be a great benefit for your channel. Also maybe talk about your thoughts behind the stuff that you are doing. for example: why connect those two things with the Multimeter? Or which multimeter settings are best for the specific task you are doing. Love what you are doing and you seem to be a nice guy, so i hope this helps you grow a bit more. If that is your intention of course ;)
Hi Eli, do you have a reference for that POST diagnostics board you use? I assume it is always the same - or do you have more that are specific to brand? I would like to repair an old Intel motherboard that doesn't post also.
Have you quit making videos I miss them I had just subbed and really enjoyed all of your videos I’m now working on an x99 board and have found your videos to be massively helpful and very interesting please make some more
Hey Eli Just subbed via patreon - great channel! How would you fix a broken PCIe connector? The actual plastic shield is ripped off and the legs are broken.
Great video. I have a msi motherboard that the cup fan spins but the motherboard shows no display also the pic e slot has no power. What would be your opinion on what's wrong with it. Thanks
Hi Eli. Can you please make a video about the reballing station. Do you have different settings for gpu and mobo? What settings do you have. And please make videos more often!! Golden regards...
@@ethanthompson3934 don't worry i Order my Chips from aliexpress because all the chips came from china so why don't by these chips from china. All came to me correctly without a Problem.
@Eli Tech, i have asus rog rampage vi apex mobo and few pins in socket are bent and tried unbending them and it worked fine, later on i had a leak in waterloop and A1 memory slot stopped working and i sent it in repair to asus but they declined to repair under warranty due to socket pin damage even though even though it was not a problem, later i tried to mess with pins again and broke one ( like 6-7 pins were bent and i broke one trying to bend them back again, so i purchased a new 2066 socket and i should get it soon, will u be able to replace socket and also check why A1 ram slot does not work, at this point i dont know what else is not working as i have not used it ( but after the leak i dried it good and it booted fine except for A1 ram slot not detecting any ram), do u have time to fix my mobo, thank you.
I have a faulty Asus Z270-P Motherboard. It was ultrasonic cleaned but the CMOS battery was left in. After this it doesn't work anymore. Would this be an easy fix or not? Seems to be that the power supply does not get triggered to power on. I initially thought it was a faulty PSU but i tried another motherboard and PSU worked fine.
I wonder what type of thermal compound was on the chipset. If it was factory thermal glue/epoxy or if someone replaced it with thermal paste. I mistakenly took the chipset heatsink off of my main PC (AM2+ socket...) while cleaning it out one day. Thinking it was just thermal paste underneath. Boy was I wrong and what a pain that turned out to be. 5 days of research and 3-4 days of finally scraping that pink crap off with toothpicks I cut in half at an angle - because isopropyl alcohol was ineffective... Luckily I had some thermal pads on hand that I had bought for my old laptop I'm trying to fix up (from the same era). Put 2 and 2 together realizing it wasn't thermal paste initially and there could be some clearance between the die and the heatsink - and it had foam padding, similar to my laptop GPU. Which required thermal padding. - Replaced the pink adhesive with a thermal pad and my chipset temps dropped from around 89°C down to like 56°C lol. Apparently they're made to withstand high temps, but it's nice to know this old motherboard I had recently maxed out the CPU on might last me many more years. And will be much easier to maintain in the future with thermal padding there.
hi, great info. could you help me with a jetway m26gt3-svp. I have a diagnostic card that shows C3 error code on it. the motherboard will come on processor heats up fan runs and everything appears normal but the bios won't reset and the motherboard will run with the bios pin set on pins 2 & 3 which is supposed to be reset for bios. motherboard is stuck at C3 on post error card. i'm thinking it is probably component problem on motherboard or corrupt bios. I think it has phoenix bios but not sure. if you could help it would sure be appreciated as I'm learning as I go. Thanks.
HI! What training do you have or how did you learn? I have a motherboard that is broken apparently. CPU fans starts spinning and all just shuts off in 2 seconds max. I'd like to learn to diagnose and repair them myself.
Hi, I have a z390 Designare, I had it for 1 year and a half, then I switched my RAM modules, in this specific motherboard I wasn't able to enable XMP, it simply wouldn't post, and when it post, it BSOD or freeze... It got worse recently, when turning it on it get stuck on DRAM and sometimes VGA (both are fine), then I found out that CPU VAXG is showing 0.0v, reseting the bios didn't changed it. CPU socket pins seem fine, so I wonder where the problem is exactly... Could you point out elements to check? I'm thinking this could be a similar problem...
thanks!! but how can know how much ohms should be in there for example how can you know if the normal resistance should be 1k ohms instead of 2k or whatever ? i hope you'll answer me as soon as possible !
Hello i have a Gigabyte Z87 motherboard (im not sure on the model i will have to edit this when i know) it powers on but after a few seconds it will turn off, then power back on and it keeps doing this with or without a ANYTHING installed. any idea what it could be and how much to repair?
