4770k has died, taken mobo with it - replacement advice plz

[MatteH Oxford]

4770k has died, taken mobo with it - or not! Updated thread

My CPU/mobo has died, the CPU fan stopped working mid GTA 5 and ended up as silicon toast :'-(

Looking at benchmarks, the newer stuff isn't that much faster, it feels like I'd be buying and not really seeing much of an improvement over what I had? I hate forced buying if there isn't going to be much benefit, thankfully I have only suffered gfx card failure before and that was after 2 years, back in the days of huge performance jumps each cycle.

What to do? Advice please OCUK

****Updated****

The PSU was at fault. Confusing considering the CPU fan is still dead, but hey, **** happens . Thanks to the suppliers for the exceptional help.

 

[MatteH Oxford]

I can't see how I can claim for a burnt out chip that's the result of the fan failing, that isn't strictly a CPU fault?
If I can't return it, I expect the new Intel chips are only 10% faster?

 

[MatteH Oxford]

I've found the retail invoice, going to contact Intel and see what they say about it. Worth a shot as I can't see any harm in doing so,hey?

Thanks, I'll update as and when.

 

[MatteH Oxford]

Board is a asus sabertooth z87 btw. 5 year warranty thankfully!

I replaced the fan, the new one spins up as does the HD, mobo fans GPU etc etc but no boot into the BIOS. I've reset the CMOS jumper, pulled the battery, removed everything bar keyboard and CPU/memory/monitor, tried it without the GPU using the inboard HDMI . I tested the PSU with both the paperclip method and a multimeter.

No good, it's hard to say if the CPU is dead, it looks like the board definitely is as there isn't any error beeps etc, no post no matter what I try.

 

[MatteH Oxford]

Oh, idid have the mobo thermal warning set, it never tripped, the thing just insta-shutdown!

 

[MatteH Oxford]

rma the board first,then take it from there

should also have a 3 year warranty on it

Five years, found the guarantee card in the box earlier
Yep rma-ing the mobo 1st

 

[MatteH Oxford]

Courier pickup has been arranged for the RMA tomorrow by the CS dept at the place I bought the Mobo/CPU from

 

[MatteH Oxford]

Motherboard is back from the RMA, tested fine apparently!
Put everything back together, no difference from before and I spent several hours fiddling with it too.


Looks like the cpu is going back .....

 

[MatteH Oxford]

Well, it turned out to be the power supply at fault in the end, yet it passed the paper clip test and testing the voltage with a MM. It was one of the 8 pins on the eps cable (for the additional 12v to the motherboard) at fault. This cable happens to be hard wired into the PSU and is not part of the modular cabling for the dvd-rom, gfx card, HDD etc.

The burnt electrical smell has now subsided with the replacement PSU, but my original cpu fan still doesn't work!? Odd that both it and the psu failed, the fan failing added to the confusion over if the mb/cpu were damaged.

Thankfully I didn't send the cpu off for RMA!

 

[MatteH Oxford]

That's good news!

It's saved me a lot of potential ££ expenditure, that's for sure!
And especially because of how true this thread is! http://forums.overclockers.co.uk/showpost.php?p=28631592&postcount=1

I should have checked the eps cable more closely, perhaps because of where it plugs in on the sabertooth board (right next to the cpu fan power socket) the failure of the psu killed the cpu fan....?

Dunno, I'm just very happy to have sorted it finally.

 

[MatteH Oxford]

I've learnt a bit more about them and what should be what cable wise, hopefully I won't miss a fault next time.

I've gone out and bought some more items form the supplier as they were so good about the RMA, and also as it was my fault for mistaking the issue to be the MB.