I removed the cpu and reseated it.. didnt look as though there was any liquid metal compromising anything.  checked cpu pins all v small but didnt see anything out of sorts.

I cleaned the bottom of the CPU to be sure then replaced it, put cooler back on.

On power up now I get error 19 and the CPU LED lit on the mobo.

Tried resetting CMOS by the button on the back, no difference.

Dead CPU?

Did you ensure that the one little spot in the case was NOT sealed? Meaning you must leave an opening in the seal around the case.

Also, some research on qcode 19 indicates a possible mobo error. Look closely and see if anything has dropped on the CPU contacts, etc. Try some compressed air (oilless) and blow out the cpu socket.

Vic

23 minutes ago, vgbaron said:

Did you ensure that the one little spot in the case was NOT sealed? Meaning you must leave an opening in the seal around the case.

Also, some research on qcode 19 indicates a possible mobo error. Look closely and see if anything has dropped on the CPU contacts, etc. Try some compressed air (oilless) and blow out the cpu socket.

Vic

Thanks Vic,

I presume you mean the CPU heatspreader when you say leave an opening in the case? Yes I only glued the 4 corners leaving the rest unsealed. I cant be sure now that was ok..?

I inspected the CPU contacts and didnt see anything I thought to be foreign there.  Maybe I missed something...?

Edited March 5, 20188 yr by kevinfirth

18 minutes ago, kevinfirth said:

I presume you mean the CPU heatspreader when you say leave an opening in the case? Yes I only glued the 4 corners leaving the rest unsealed. I cant be sure now that was ok..?

ok - that's good.

Use the best magnifier and brightest lite you have - see if any one pin in the cpu socket appears bent.

Also, with all the install/remove cycles - double check that your ram is still seated properly and video or any other cards you have are also.

BTW, what color is the CPU led?

1 hour ago, vgbaron said:

, what color is the CPU led?

red

I guess it's possible for a part of a cpu to fail but I'm still betting on the mobo having an issue. A sorted pin on the cpu socket or in the DIMM sockets could cause something like that.

Vic

Did you try your new PSU with the CPU/mobo before you delidded it?

It could be that when the PSU failed it took out the motherboard and your delid is actually a good one but your mobo is kaput....

21 hours ago, kevinfirth said:

I removed the cpu and reseated it.. didnt look as though there was any liquid metal compromising anything.  checked cpu pins all v small but didnt see anything out of sorts.

I cleaned the bottom of the CPU to be sure then replaced it, put cooler back on.

On power up now I get error 19 and the CPU LED lit on the mobo.

Tried resetting CMOS by the button on the back, no difference.

Dead CPU?

 

Others have noted that upon code 19, re seating their PCI cards has fixed it. So check anything installed in the PCI slots, including your graphics card is properly seated.

In addition, some have noted that on Asus boards the RAM is hard to seat. So make sure your RAM is properly seated. If it's not, code 19 can pop up. Common on the Maximus IV Extreme.

 

19 is:  Pre-memory PCH initialization is started.

So yes, as there's an LED on the CPU, may be that. But on the other hand, if it's pre memory, may be that.

Did you try one stick only? Then the other stick? And then the same in another slot?

 

  

 

Edited March 6, 20188 yr by martin-w

Does your board have duel BIOS? Look in your manual. Can you switch to the second BIOS?

 

Did you say previously that you were going to try a different CPU? 

Edited March 6, 20188 yr by martin-w

4 hours ago, martin-w said:

Does your board have duel BIOS? Look in your manual. Can you switch to the second BIOS?

 

Did you say previously that you were going to try a different CPU? 

dual bios - not sure will have to check, but dont think so

other CPU  - has arrived today will need to check tomorrow (after trying other options above)

Update: Tried reseating all mem units and the GPU - no improvement.

Ive installed the new 7700K (no delid) and on boot it showed error 55 (no mem installed)

I took out the mem, tried one slot at a time and it booted ok.  Put the other mem slot in and again a good boot.

So I have a working PC again and I guess it looks like I stuffed up the delid...

I may go back and try swapping the CPU back again now I know everything else is working good, to see whether it is definitely dead, but I have to see what this CPU can do in terms of OC without delid before that...

Thanks everyone for your help and suggestions

Cheers K

21 hours ago, martin-w said:

Does your board have duel BIOS? Look in your manual. Can you switch to the second BIOS?

 

Did you say previously that you were going to try a different CPU? 

New CPU installed and tested.

I ran the standard ASUS 5GHz profile with the XMP for my memory.

Its running at 5Ghz with 1.4v apparently

I ran a stress test through CPU-Z and with all cores at 100% its barely going into the high 50's temp wise....with no delid and using the previously applied liquid metal as TIM.

Edited March 7, 20188 yr by kevinfirth

19 minutes ago, kevinfirth said:

New CPU installed and tested.

I ran the standard ASUS 5GHz profile with the XMP for my memory.

Its running at 5Ghz with 1.4v apparently

I ran a stress test through CPU-Z and with all cores at 100% its barely going into the high 50's temp wise....with no delid and using the previously applied liquid metal as TIM.

A happy ending. What cooler you have?

16 minutes ago, zmak said:

A happy ending. What cooler you have?

Its only a coolermaster seidon 120V v2 - a pretty average AIO watercooler

3 hours ago, kevinfirth said:

New CPU installed and tested.

I ran the standard ASUS 5GHz profile with the XMP for my memory.

Its running at 5Ghz with 1.4v apparently

I ran a stress test through CPU-Z and with all cores at 100% its barely going into the high 50's temp wise....with no delid and using the previously applied liquid metal as TIM.

 

Glad you got it sorted Kevin.

High 50's at 1.4 volts at 5 GHz with no delid... Try RealBench. Bet it's hotter than that. Especially with a Seidon 120.  The CPUz stress test isn't a good test for thermals. It's puny. 

90 degrees more like. 

 

I'd love to know what went wrong with your delid. Did you use a tool, or a knife? You should pull it to bits and look for any issues like scratched die, substrate etc. 

 

 

 

Edited March 7, 20188 yr by martin-w