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Major upgrade, Possible RAM issue.


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#1 matt6457

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Posted 11 August 2017 - 09:47 AM

I recently decided to upgrade my computer, I removed an ASUS Sabretooth Z77 motherboard, 16GB of Corsair Vengeance RAM (2x8GB) and an i7 3770K Processor and replaced them with an ASUS PRIME Z270a Motherboard, 16GB G.Skill Trident Z RGB RAM (2x8GB) (F4-3000C15D -16GTZR) and an i7 7700k Processor. I am using the same 1000w PSU, Case and HDD's.
When I try to boot the system everything powers on, the RAM's RGB's, The lights on the motherboard, The fans in the case and on the GPU but i don't get any video output I've tried this with the GPU's DVI connector and have removed the card and tried on the motherboards connector. I have found that when I boot a red CPU warning light flashes momentarily on the motherboard then goes off (I assume this is normal?) and the DRAM warning light comes on and stays on. I press the MemOK! button and the light flashes signifying that the motherboard is trying to make the RAM work but this doesn't work. Before purchasing the components I looked on the G.Skill website and it says the RAM is compatable. I have tried each RAM stick individually and in different slots but no luck. I would have thought that maybe the motherboard was faulty but everything seems to power on fine and the sticks light up as they should.
 Any advice would be appreciated, as I said I have checked compatability as best as I could and I have also checked the CPU connector pins.
 



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#2 Drillingmachine

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Posted 11 August 2017 - 01:03 PM

Somewhat small upgrade tbh. Anyway.

PSU model and manufacturer? You already tried resetting BIOS? PSU 8-pin cable is connected to motherboard (CPU power connector)?

#3 matt6457

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Posted 11 August 2017 - 01:13 PM

Sorry I misspoke, I don't know a great deal about computers, For me changing that much was a big upgrade TBH.The PSU is NZXT HALE90-1000-M I have a 24 pin Power supply going to the side of the motherboard and an 8 pin power connector at the top of the board by the CPU. I Don't know how to reset the BIOS without the computer being booted up.



#4 Drillingmachine

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Posted 11 August 2017 - 01:36 PM

Usually people ask about upgrades before making it.

About CMOS reset, manual page 1-11 shows how to do it. If you don't have manual, grab it there https://www.asus.com/fi/Motherboards/PRIME-Z270-A/HelpDesk_Manual/

#5 matt6457

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Posted 11 August 2017 - 01:38 PM

Sorry, I have done that already. I tried this and when i booted the system back up it started once and turned off after a couple of seconds then started again and unfortunately it was the same as before. I tried this with both sticks of RAM in the A2 slot as the manual instructs.



#6 Drillingmachine

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Posted 11 August 2017 - 01:52 PM

Well, usually if system doesn't work, only way is to replace broken components with working ones. Problem is PC's don't have good diagnostics to determine what's broken.

Still that turn off after couple of seconds usually means there is something worse than just incompatibility.

Pictures from your assembly? You already said CPU socket is OK but picture from socket as that CPU_led clearly points to CPU?

#7 matt6457

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Posted 11 August 2017 - 02:22 PM

Just too clarify, The system comes on and stays on apart from the first reboot after shortcircuiting the 2 pins to reset the CMOS. Also the CPU light only flashes on for about 1 second after turning the system on then it goes off and the DRAM light comes on continuously. I have just uploaded a video to youtube, I thought that might be of use.

 

https://youtu.be/P-8moHMP4kM

 

On the right of the motherboard you can see the red cpu light flash on and off, reading around this seems normal but then the amber light that stays on is the DRAM warning light



#8 Drillingmachine

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Posted 11 August 2017 - 02:50 PM

Well, CPU might be OK then, I cannot see anything really wrong assembly on that video. Are you sure motherboard standoffs are OK?

#9 matt6457

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Posted 11 August 2017 - 02:58 PM

Thanks for taking a look. The motherboard has the same fitting points as my old one. I checked before installation, It has 3 rows of 3, 1 row across the top, 1 row across the middle and 1 row across the bottom. They are all there with no extras. I'm honestly stumped, Some people with similar vids have said how they solver their issues but nothing I've found has helped with the issue I'm having. It seems really unlikely that both sticks of RAM are faulty but thats all I can think is the issue.



#10 Drillingmachine

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Posted 11 August 2017 - 03:12 PM

I cannot figure out anything else. You said you don't have replacement RAM but you could buy very cheap DDR4 stick, like 4GB, and try with that if system even POSTs.

#11 matt6457

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Posted 11 August 2017 - 03:23 PM

That's what I'm thinking I might have to do, I just wasnt sure If I should buy a cheap stick like you recommend that would then be useless when this issue is resolved or if I should send this RAM back and get the same RAM again or buy different RAM such as HyperX Fury which was the other set of RAM sticks I was looking to buy before deciding on the G.Skill. without knowing for sure what the issue is I don't know which way to go.



#12 Drillingmachine

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Posted 11 August 2017 - 03:39 PM

If cheap stick works, then G.Skill is problem and that small stick it's bit useless. Those G.Skills could go to warranty if broken, if only compatibility problem then I'm not sure what happens.

I would still try with cheap stick and depending on result, think how to progress from there.

#13 matt6457

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Posted 11 August 2017 - 03:49 PM

I think that's good advice. I'll have to look for a cheap stick. On the G.Skill webpage about these RAM sticks in their QVL it does list this motherboard. Also I purchased the motherboard and processor after pcmag reviewed them together and in a seperate article they recommended this RAM, the RAM I got is slower than in the review but after the manufaturers site confirmed compatability I feel I could safely argue this wasn't my fault if they are incompatable.

 

http://gskill.com/en/product/f4-3000c15d-16gtzr

 

Think I'll have to go find a suitable RAM stick and try again, I will update the post when I've tried the new RAM stick. Thanks for the help.



#14 Drillingmachine

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Posted 11 August 2017 - 03:58 PM

QVL lists are useless as manufacturers test with one memory stick and if it works, it gets to QVL list. Too bad that doesn't mean every stick of same type also works as those sticks are not exactly same. It wasn't your fault, that memory should have worked. Those compatibility problems are mostly random.

When you test with that "cheap" stick, we can quite safely say if it was G.Skill problem or something else.

#15 matt6457

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Posted 11 August 2017 - 04:07 PM

Thanks for the reasurrance. Think I'll get this stick, It's the smaller version of the RAM I was going to get until I went with the g.skill ones.

 

https://www.amazon.co.uk/HyperX-Memory-Module-Skylake-Compatible/dp/B00TY6A2Z4/ref=sr_1_1?ie=UTF8&qid=1502485961&sr=8-1&keywords=hyperx+fury+4gb+ddr4


Edited by matt6457, 11 August 2017 - 04:14 PM.





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