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Asus Sabertooth 990FX R3.0 no post

7K views 26 replies 9 participants last post by  superstition222 
#1 ·
My new system won't post:

Specs:

MOBO: Asus Sabertooth 990FX R3.0
CPU: FX-9590
PSU: Corsair AX1200i
SSD: Samsung 850 EVO 500GB
RAM: Gskill Sniper 2400
GPU: Asus RX480 Strix
Cooling: EK Predator 360

PSU: Self test OK.

PC won't post. QLED CPU blinks one time. QLED DRAM blinks one time. QLED CPU blinks again. After that the PC shuts down. QLED Power stays on.

EK Predator is connected to CPU FAN and the SATA power connector.

24-PIN and 8-PIN power cable are connected. 8-PIN PCI-E is connected.

Tried to update bios and Memtest OK.

Switched RAM Gskill to Kingston HyperX.

Any thoughts on this would be greatly appreciated!
 
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#3 ·
See if you have another cable to that CPU. It is weird but I have to use a different cable even though it was working on the old mobo. Once I switch the cable to the spare CPU cable it worked fin.

BTW I have a modular supply.
 
#4 ·
One thing that can cause trouble is using the wrong screws.

I used Crosshair Formula Z screws to attach a Gigabyte UD3P 2.0 board to my NZXT case and the board would not post no matter what. When I used the Gigabyte screws, though, it worked fine. I was about to RMA the board before I decided to take everything apart, including my loop, to try that desperate measure.
biggrin.gif


One would think the Crosshair screws are better since they're painted but nope.
 
#5 ·
Also recheck your memory.. Since it hooks in one side and locks from the other. Be sure it is in the right way and the correct slots. BE sure the CPU cooler is plugged into the right connection. The book points out the two types.
 
#7 ·
Sorry you still have issue with it.. At this point the ram you have is it QVL and is it within specs? Check that all those conections for your front IO are connected right to. If all good there then I would go back to a complete tear down and check everything.

I would remove the mobo and the cpu and recheck the pins on cpu, and make sure the standoff are all properly aligned. I have read some owners had problems with the standoff screws causing shorts. For me I line it up and start with the middle mobo screw and work outwards not tightening them till all screws are in. Then I tighten the center ones then the outer ones. (Sorry its the Machinist rule) Just be sure to go over them to make sure they are all snugged down after.

Then the CPU check the pins and that it is in the right direction. I found out after I ordered my Gskills it was designed for intel systems and was worried it would work. But so far the factory OC area is all fine.

It can take only one thing to not make it work. At worst put the mobo on cardboard on the table and try it that way. That can tell you if the mobo standoffs are a issue. Most say to reset the BIOS some say to flash the BIOS but at this point it may be RMA time. Check to be sure no metal shavings got in and try another GPU card if you have.

I know the ram is weird to put in being a one side lock but maybe a few times in and out to loosen the slot up may help. I take it you are sure the cable going to the CPU on mobo is the CPU marking and that the GPU is all correct plug.

Last by chance do you have one of those on board speakers to plug into the speaker pins.

I know this is most frustrating. Keep us posted.
 
#8 ·
do you have a speaker hooked up? any beep codes? the southbridge has indicators on it (qled indicators)...any of them lighting up?

if not...do you have power? psu fan spinning up? have you tested for power actually being applied?

start with the basics...

http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems

after than...go back to square 1. cpu in and a single stick of ram in dimm 1. they start swapping out components (try different ram, then different cpu, then different mobo)
 
#9 ·
Reseating it helped me on my R2.0 when I got it, I was so happy about it, put everything together and boom - no post. I felt like a little child that lost his toy
biggrin.gif


If that doesn't help, try rotating the RAM sticks - for some reason I needed to do that both on Sabertooth and Aura. Even though I bought 2 separate, same, 4GB modules.

Also if reseating and that doesn't help try it with only 1 RAM stick in all 4 spots each time. With this problems it's usually something weird that's not called "users fault" but "the way things work" unfortunately.
 
#10 ·
Quote:
Originally Posted by tashcz View Post

Reseating it helped me on my R2.0 when I got it, I was so happy about it, put everything together and boom - no post. I felt like a little child that lost his toy
biggrin.gif


If that doesn't help, try rotating the RAM sticks - for some reason I needed to do that both on Sabertooth and Aura. Even though I bought 2 separate, same, 4GB modules.

Also if reseating and that doesn't help try it with only 1 RAM stick in all 4 spots each time. With this problems it's usually something weird that's not called "users fault" but "the way things work" unfortunately.
Are those a matched pair of memory modules? Also it may be a CPU limitation.
 
#12 ·
Quote:
Originally Posted by superstition222 View Post

One thing that can cause trouble is using the wrong screws.

I used Crosshair Formula Z screws to attach a Gigabyte UD3P 2.0 board to my NZXT case and the board would not post no matter what. When I used the Gigabyte screws, though, it worked fine. I was about to RMA the board before I decided to take everything apart, including my loop, to try that desperate measure.
biggrin.gif


One would think the Crosshair screws are better since they're painted but nope.
Screws? You are kidding I hope? I think your problem lied elsewhere.
 
#13 ·
Quote:
Originally Posted by chrisjames61 View Post

Screws? You are kidding I hope? I think your problem lied elsewhere.
Actually there is enough differences in mfg tolerance that differ causing that. I have had that happen on my boards. Some have those knurled washer and they are great from grinding the metal on the board, so any contact area can be scared up after using them. Great they bite the surface to keep from backing out but hey we can always use a dab of fingernail polish to act as locktite.

What erks me is 200 bucks for a mobo and they don't even give you mounting screws.
 
#14 ·
Quote:
Originally Posted by chrisjames61 View Post

Screws? You are kidding I hope? I think your problem lied elsewhere.
No. I am not kidding.

I even retested with the painted Crosshair screws just to be certain after successfully posting with the unpainted Gigabyte screws.
 
#15 ·
Remember the good old days when all the contacts were gold plated? At least on IBM stuff.

I still have bags of standoffs, bolts, and washers. None of that plastic snap on stuff holding the motherboard down for me. Do you know it is possible to straighten out a warped motherboard by getting it nice and toasty? I even used a rubber block behind one board to get it straight.
 
#16 ·
Older motherboards thend to have issues with mounting screws, where the mobo touching metal screws to mount onto case gives you plorbems.
But now days newer boards shouldn't see any of these plorbems
 
#17 ·
Quote:
Originally Posted by miklkit View Post

Remember the good old days when all the contacts were gold plated? At least on IBM stuff.

I still have bags of standoffs, bolts, and washers. None of that plastic snap on stuff holding the motherboard down for me. Do you know it is possible to straighten out a warped motherboard by getting it nice and toasty? I even used a rubber block behind one board to get it straight.
That is a good use for a Hockey puck..
biggrin.gif


Its like mounting those 1.5lbs air coolers hanging sideways for months at temps.

For me if I was him I would reassemble the whole system being sure that mobo is mounted right. I put a screw in the center then work outwards not tightening till I get two or three in, followed by all in place. Those mobos can move just enough to get off contacts causing shorts.

Otherwise I say he should RMA it before warranty runs out.
 
#18 ·
"Its like mounting those 1.5lbs air coolers hanging sideways for months at temps."

Now I know you are an old wife because you just spouted out an old wive's tale. I've been running big air for YEARS with no sag at all. It simply does not happen with AMD because of its very large backing plate that is larger than the vrm heat sink on many boards.

That tall tale might actually be true with intel boards because of their much smaller mounts and NO backing plate at all stock, but not with AMD.
 
#19 ·
Quote:
Originally Posted by Iwamotto Tetsuz View Post

Older motherboards thend to have issues with mounting screws, where the mobo touching metal screws to mount onto case gives you plorbems.
But now days newer boards shouldn't see any of these plorbems
People can believe me or not. The fact is that my UD3P 2.0 board would not post when I used the black painted Crosshair Formula Z screws and my NZXT case. It would post when I used the unpainted screws that came with the board.

I was about to RMA the Gigabyte board when I threw a Hail Mary pass by swapping the screws.
 
#21 ·
Is it leaking on the motherboard or cpu?
 
#22 ·
This is the reason I don't want to buy a EK cooler. I have looked at reviews lately and the product is crap. I am going to go with my gut tells me to that is my first choice.

Yes you need to isolate the leak issue. They say to place a tray under it when you power it up to be sue it isn't leaking under pressure. Remove the coolers and just hook it to the PSU by itself to test.

Good Luck!
 
#23 ·
Quote:
Originally Posted by BinaryBummer View Post

What erks me is 200 bucks for a mobo and they don't even give you mounting screws.
They did years ago supply separate screws within the motherboard box, those where great days indeed.

NOW when I fix a new motherboard inside the cases of today, buy myself many (still have lots) fiber washers that are used underneath the head of all the screws. It supplies an easy way of tightening the screws without damaging any motherboard PCB surface.

Never use plain screws on any motherboard without any fiber washers installed. Years of experience speaking here
thumb.gif
.
 
#24 ·
Quote:
Originally Posted by Elrick View Post

They did years ago supply separate screws within the motherboard box, those where great days indeed.

NOW when I fix a new motherboard inside the cases of today, buy myself many (still have lots) fiber washers that are used underneath the head of all the screws. It supplies an easy way of tightening the screws without damaging any motherboard PCB surface.

Never use plain screws on any motherboard without any fiber washers installed. Years of experience speaking here
thumb.gif
.
That is sound. I know most those Mobo screw areas have one side that knurled like solder but over tightening can cause that to compress and break or just leaving bad contact.

I have moved so many times in the past i have lost or left behind so much misc. that now I look for it and can't find it. Seems the market is down to making us buy the exact item/s these days. Buy a video card some don't even come with adapters anymore.

Now we are down to buying the standofffs and screws and washers.
 
#25 ·
Quote:
Originally Posted by BinaryBummer View Post

This is the reason I don't want to buy a EK cooler. I have looked at reviews lately and the product is crap. I am going to go with my gut tells me to that is my first choice.
Maybe the Predator is but I haven't had trouble with my L360 2.0 kit leaking. The rubber tubing with compression fittings seems to be a very reliable combo. In fact, I don't even leak test anymore. The only trouble is getting the fittings off of the parts after tightening them a lot. I leave some of them on certain things because they just won't loosen but it's not a big deal.
 
#26 ·
Quote:
Originally Posted by superstition222 View Post

Maybe the Predator is but I haven't had trouble with my L360 2.0 kit leaking. The rubber tubing with compression fittings seems to be a very reliable combo. In fact, I don't even leak test anymore. The only trouble is getting the fittings off of the parts after tightening them a lot. I leave some of them on certain things because they just won't loosen but it's not a big deal.
it is all good, I don't want to sound trollish here, but I just can't afford a mishap at this point. Got a house to close on and then got tons.. well everything from roof down to be reworked to bring it up to date. I only wish I had around 10k to dump into my puter setups. It would have everything from some killer APC's that could hold there own multi monitors etc, however I can't live the life I want since that is out of context.

I got two boys one in college and the other about to finish HS. Me and my wifes health is failing fast and time is short when you really get to thinking. OF course it isn't a good thing to dwell upon it either, but it matters on how you want to leave this world.

I know any hose or fitting after they are used may need to be replaced or trimmed back with fresh clamps etc. Once you get a deformity it can go south on you.
 
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