The multimeter is to check your PSU, the PSU power cable, the PSU motherboard and cpu cables and finally the wall socket.
The beep codes won't work if you do not have an internal speaker
The thing is, you ideally need to confirm where the fault lies. I can easily post that I think it is likely you have motherboard error but that is meaningless as it is unproven and merely conjecture. If you just go straight out and buy yourself a new motherboard when the problem lies in the 24V motherboard cable then you would throwing a heap of money down the drain for example.
So, for testing purposes.
Take everything round to a friend or family who have compatible hardware. Hopefully one of them will let you check your RAM, CPU PSU (plus power cord) so that they can all be eliminated as the problem. In addition, try plugging another device into your monitor - maybe an xbox, blu-ray or whatever to confirm the monitor and it's cable is fine. You can check your current monitor cable when you test the other stuff round your friends/family. You also need to check the monitor power cord too.
All of the above is a little out of sync. The point is, you need to identify the fault before splashing out.
The monitor and VGA cable works fine, Im using it now on a seperate PC, Ive also tried seperate PSU cables.
I also have a spare Corsair CX500M PSU laying around, I could take the CX750M PSU out and try the 500W one which I know works.
Also have spare RAM, RipJawZ 1600Mhz 4x4GB, I could try that too.
But I don't think the monitor is the issue as it isnt detecting mouse or keyboard either.
I think changing the CPU offset from positive to negative prevented it from starting up properly, then when I reset the BIOS by taking the battery out maybe it corrupted the BIOS?
I can try my other PSU if you would like.
okay then. Monitor and cable eliminated.
That leaves mobo, cpu, ram and psu.
Yes, by all means, try the ram and psu on your system. But if they don't work then you won't be able to eliminate anything and will need to take your parts elsewhere to check if they are functioning correctly.
Edit: Given that this problem originally started with blue screens before you changed the offset, it would be good to check your cpu and cpu socket if you decide to remove for testing. You could inspect them to make there is nothing like any bent pins or whatever
Its being blue screening for a long time with the same error (WHEA_uncorrectable_error), Just this time I thought I would try to fix it.
And I already took the CPU out and put it back in, No bent pins.
I went into my BIOS, Changed OC Tuner to X.M.P because I noticed my RAM was only running at 1600Mhz, So I enabled that, selected 1866Mhz, Then I changed the CPU Mode offset from positive to negative, saved and exited and now its not working.
This issue only came after I changed that setting and saved and exited.
Ill try the PSU and RAM now.
I then tested his i5 2500K in my motherboard with 1 stick of my RAM no CPU fan, And the monitor didn't come on but the PC turned on.
So is it safe to say my motherboard is the issue? I just tested my CPU in his motherboard to make sure my CPU wasnt broke aswell.
I have looked on Amazon for motherboards with socket 1155 and there isnt many in stock, or they will be dispatched within 5-6 days, I can't wait that long so I found one on ebuyer.
It only supports 2 sticks of RAM but I think I will buy this one just to use now then I will upgrade to an i7 and a different motherboard later on.
This is the one im looking at buying from ebuyer, What do you think?
Asrock H61 Pro BTC Socket 1155 VGA HDMI 5.1 Channel Audio ATX Motherboard - Ebuyer
I know it only supports 2 sticks of RAM but I can put the other 2 away till I upgrade to an i7 and a different motherboard.
Will this one be around the same size as my p8z77v lx, I just need to make sure my h80i cooler will fit on it, Also will windows 10 work on it?
You might look here:
Computer Hardware, Computer Components, Motherboards, Intel Motherboards, LGA 1155, 4240pin - Newegg.com
ASRock Z75 Pro3 LGA 1155 Intel Z75 HDMI SATA 6Gbs USB 3.0 ATX Intel Motherboard - Newegg.com
has 4 DIMM slots, and Asrock seems to support it for Windows 10. It's also a full-sized ATX board, the same size as your current Asus board.
Asrock began as a bargain brand, but they have been moving into the same market space as Asus recently. I have been happy with the X99 board I have from them, and I find its BIOS (UEFI) easy to work with.
As far as your ebuyer mobo is concerned. There is a problem. From your first post you were playing around with your offsets, which indicates you may have been trying some overclocking of some sorts. But regardless of that, you are making changes to voltages on a budget board which doesn't excel in the power phase area. That will also be the case with the ASRock. Doing that kind of stuff makes budget boards fail. So you need to decide how you want to use the board and then decide upon and set your budget accordingly.
As far as having your things fitting on the board, all you need is an ATX form factor board as then it is a like-for-like replacement. Your old board is ATX
As far as Windows 10 goes, what type of license do you have? I mean for the rig that the Asus board just failed on.
Please state your budget in GBP (I am assuming you are in the UK), then @bobkn, I and others can make the suggestions that fit your needs and budget.
If it is in your budget, and you intend to be tweaking a few bits and pieces, then I would recommend something like
Unfortunately, it is double the price of the model you chosen from Ebuyer as would cost £100 inc delivery
Edit: That is just an example above. You could also get a good quality board from ebay that would keep in your budget
1155 seems to be outdated. Not many products for it anymore I see.
My motherboard will arrive tommorow hopefully and I will let you know if it works.
Thank you for your help by the way.