New PC not booting

[Knytestorme]

It's the PSU.

I had the exact same issue with the same mobo, stripped everything down and went through my usual diagnostics and had it randomly working and then not working with various parts configs. Changed over the PSU (same brand/model) and has worked flawlessly ever since.

My thread about the build should be around here somewhere.

I would say though that I personally would change the RAM over for tri-channel when using an X58 mobo/cpu just because the i7 X58 cpu's are designed for triple channel memory and the added pathways it allows.

[Sajuuk]

It's the PSU.

I had the exact same issue with the same mobo, stripped everything down and went through my usual diagnostics and had it randomly working and then not working with various parts configs. Changed over the PSU (same brand/model) and has worked flawlessly ever since.

My thread about the build should be around here somewhere.

There is also the PSU. If that's bad it will adversely effect the rest of your system. It's easy to swap in the one from your main PC for a test run.

I would say though that I personally would change the RAM over for tri-channel when using an X58 mobo/cpu just because the i7 X58 cpu's are designed for triple channel memory and the added pathways it allows.

Some reiteration, with an addition.

Okay, here is my understanding of ram. Assuming identical sticks of ram, what determines dual or triple channel use is how you use them. You stated you got 24GB of RAM, 6x4gb. Those would populate all of your DIMM slots, allowing for triple channel use. Now, had you bought...only 16GB (4x4gb) they would only populate four of the six DIMM slots, moving you to dual channel mode (Pairing two 4GB sticks with each other for efficiency...dual channel, versus pairing three 4GB sticks with each other..triple channel).

aka, the ram he has is just fine in the quantities he has. To my knowledge Dual/triple channel mode is dictated by the motherboard based on how many ram slots are filled, and if they match. Since he has six 4gb dimms that match populating every slot, his motherboard will run in triple channel mode using the ram to its full extent. There's nothing wrong with the ram he has, he just bought three kits of 8gb ram (2x4gb) rather than two kits of 12gb ram (3x4gb).

Here is the model number of the RAM off of the QVL.
KHX1600C9D3K3/12GX
Here is the model number of the RAM kedash bought.
KHX1600C9D3K2/8GX
Here are the numbers together

KHX1600C9D3K3/12GX
KHX1600C9D3K2/8GX

Breaking down the code.
K - Kingston
HX- HyperX
1600-Rated Speed of the RAM
C9-CAS LATENCY 9
D3-DDR3
K2/K3-Number of sticks in the kit
/12GX/8GX-total amount of ram in the kit
SO, looking at the code, The only thing seemingly different between the two is the number of dimms in each kit so the amount of ram contained within varies accordingly.

Think about it, would you (as a company that makes RAM) want to market, develop, and manufacter multiple subsets of ram with the only difference being the ram was dual channel or triple channel. THEN motherboards/CPUs would have to be configured for each subset of ram. There would be multiple versions of ram, motherboards, RMAs galore, and it would be a pain in everyone's ass.

So instead of all that, in order to assist people who might buy a lower level consumer board that only has four dimm slots vs six, they market their ram as dual channel kits, only containing multiples of two dimms so those people buying ram won't buy extra dimms they don't need.

The fact he purchased dual channel kits is not the issue. Some (or all of) the ram might be defective (and while I doubt it, it could happen). Best thing to do now is listen to post beeps, also do as other people suggest: reset cmos, remove the motherboard from the case in case there is a short, check the CPU fan, run with no ram/listen for post beeps.

Basically, as has been suggested. The RAM as far as we know is fine. You do not need to return it unless it is determined to be faulty.

[Knytestorme]

There is also the PSU. If that's bad it will adversely effect the rest of your system. It's easy to swap in the one from your main PC for a test run.

Oh it's most definitely his PSU, I'd lay money on it.

[Sajuuk]

Oh it's most definitely his PSU, I'd lay money on it.

At least it's not because he bought dual channel ram kits! I haven't built enough systems to have really dealt with PSU issues (except for when mine blew out, that was a freaking scary night! Luckily nothing else in the system was damaged.)

[Kedash00]

I hooked up the little motherboard speaker and tried to boot and same issue. No post beeps at all. Trying another psu now will update later.

[Kedash00]

We have a winner! Bad power supply. Thanks so much for all the help and tips from everyone

[Ughmahedhurtz]

We have a winner! Bad power supply. Thanks so much for all the help and tips from everyone

Nice when it's a simple fix, eh? :P

[Sam DeathWalker]

Ya no post beeps indicates either the MB, Bios, CPU or Power Supply. If you cleared the Bios then that becomes unlikly.

So between CPU, MB and PS replace whatever you have on hand, if none then start with cheapest part (PS) then next cheapest then most expensive.

To bad there is no easy indication when the PS isn't able to deliver the proper voltages before you get into the bios settings....

Although they are out of stock right now this is where to get first quality power supplies at a cheap price:

http://www.thermaltakeusa.com/store/...C=1031&SC=1072

[Knytestorme]

We have a winner! Bad power supply. Thanks so much for all the help and tips from everyone

Don't look badly on Corsair for this one. As I said, I have the TX-750 where the first one was faulty and the new one hasn't skipped a beat since.

[Apps]

Don't look badly on Corsair for this one. As I said, I have the TX-750 where the first one was faulty and the new one hasn't skipped a beat since.

Good deal. I also wondered about the PWS, but I stopped at the RAM spec discontinuity.

Nice diagnosis Knytestorme, and Kedash00. I put certain user on Ignore list, since unnecessary and obnoxious behavior typically isn’t helpful…

Our own Nick Burns is funny.



I built a small (20) station computer lab for a local church. Two of the brand new PWS’s were bad upon arrival. Its unfortunate the level of quality control that is present with today’s equipment. However, I concede that as the technology changes so fast, I guess companies aren’t willing to invest in quality… it wont matter long. Would seem Corsair isn’t any different.

So what are you planning to do with this system?