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New Build won't start

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April 27, 2010 2:05:13 AM

I just got done finishing up my new build. I'm using a Gigabyte GA-790 mobo. I got everything put together. The front buttons weren't working but I was able to start w/ the open case buttons on the mobo. I was surprised to see the CPU fan start spinning and the boot screen to come up. I was able to enter the BIOS on the first try... alright!

I powered it down to fix the power/reset/hdd switches and now I can't get anything to boot. When I reconnect the power I the motherboard stills lights up (the on-board switches a blue) but neither my front buttons nor the on-board buttons can cause any fans to start spinning (PSU or CPU).

I've triple checked all of my connections now, and am lost for the moment. Any advice would be appreciated.

Thanks,

John

More about : build start

a b B Homebuilt system
April 27, 2010 3:38:54 AM

AL_Andy said:
Hey John, sorry but I'm no professional at these stuffs.
I'm not going to be a big of a help for you, but take a look at this.

http://www.tomshardware.com/forum/261145-31-perform-ste...

I think this page might help you.
Good Luck and sorry for not being able to help you.


I was talking with John over the phone. I ran through the NO POST/video sticky. Here's what we accomplished:

Step 1, he read the manual, hence why he changed his front panel wires to match the motherboard diagram

Step 2 I had him disconnect his CPU power 8 pin and reconnect it. (I still think this could be a problem)

Step 3 He said he installed the brass stand-offs under the motherboard (verified with pictures)

Step 4 Had him re-seat his Gfx card

Step 5 Both 6 pins are hooked up to his 5850

Step 6 Had him pull a stick of RAM, no change

Step 7 Memory modules verified as seated.

Step 8 closest RAM slots DDR3_1 and DDR3_2 being used.

Step 9 Plastic cover, I didn't ask him, but he sounds very smart over the phone. I honestly dont think he would have posted 2-3 times with a plastic cover over his CPU.

Step 10 CPU installed arrow to arrow.

Step 11 using a stock HSF w/ the pre-applied TIM

Step 12 CPU Fan is plugged in, verified in pictures.

Step 13 Unknown if there was foreign material on the TIM on the stock HSF

Step 14 Loose screws: Some screws were lost during motherboard installation. It's an Antec 900 Two case, with a lower mounted PSU. He is going to remove the PSU and shake it a bit to see if a screw fell into it. I also recommended he remove everything all over again, verifying that no screws are lodged behind the Motherboard, thereby shorting it out.

Step 15 He was concerned that he might have shorted it out with static electricity. I dont think he has a wrist strap. I personally have never zapped anything, but I imagine it would be similar to when I shock another person, would he feel the zap?

Step 16 No system speaker (I know this impairs troubleshooting)

Step 17 Front panel plugs were initially installed "wrong" and the system would POST. After setting the plugs correctly, it is now not getting any power to POST.

Step 18 PSU Checked/Verified as on

Step 19 955 BE C3 stepping is supported by this motherboard.

Step 20 The CMOS has a reset button with a plastic cover over it. Had him remove the cover and hold the reset button for ~30seconds.

Step 21 Does NOT have integrated gfx

This basically leaves breadboarding and Troubleshooting some of the questionables in this tree.
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a b B Homebuilt system
April 27, 2010 4:39:53 AM

Since we did put alot of work into troubleshooting this, Im going to keep it bumped all night long hoping someone spots somethings that I didnt.
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a b B Homebuilt system
April 27, 2010 4:56:11 AM

Also, John did report he has another system he can cannibalize parts from to isolate if there is a hardware fault.

Im hoping it doesnt come to that. The fact it did POST a few times is good, so Im hoping it's just a "duh" part of the build.
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a b B Homebuilt system
April 27, 2010 5:26:54 AM

Here is his build:
Total cost: $1,147.96

quantity of item 1

SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Item #: N82E16822152185
Return Policy: Standard Return Policy
Protect Your Investment (expand for options22-152-185|hide options22-152-185)
Service Net Replacement Extended Warranty
The product will be replaced and shipped directly to you at no charge(more info22-152-185.0.120)

1 year: $10.99
2 year: $18.99
$89.99
select item 2 quantity of item 2

GIGABYTE GA-790FXTA-UD5 AM3 AMD 790FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard
Item #: N82E16813128415
Return Policy: Standard Return Policy
Protect Your Investment (expand for options13-128-415|hide options13-128-415)
Service Net Replacement Extended Warranty
The product will be replaced and shipped directly to you at no charge(more info13-128-415.0.120)

1 year: $19.99
2 year: $36.99
-$5.00 Instant
$184.99
$179.99
select item 3 quantity of item 3

HIS H585FN1GD Radeon HD 5850 (Cypress Pro) 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card ...
Item #: N82E16814161330
Return Policy: VGA Replacement Only Return Policy
Protect Your Investment (expand for options14-161-330|hide options14-161-330)
Service Net Replacement Extended Warranty
The product will be replaced and shipped directly to you at no charge(more info14-161-330.0.120)

1 year: $29.99
2 year: $59.99
-$10.00 Instant
$309.99
$299.99
select item 4 quantity of item 4

OCZ ModXStream Pro OCZ700MXSP 700W ATX12V V2.2 / EPS12V SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC ...
Item #: N82E16817341018
Return Policy: Standard Return Policy
Protect Your Investment (expand for options17-341-018S11504|hide options17-341-018S11504)
Service Net Replacement Extended Warranty
The product will be replaced and shipped directly to you at no charge(more info17-341-018.0.120)

1 year: $10.99
2 year: $18.99
-$40.00 Instant

$25.00 Mail-in Rebate Card17-341-018 $129.99
$89.99

1 OCZ Diesel 4GB USB 2.0 Flash Drive Model OCZUSBDSL4G
Item #: N82E16820227331
Return Policy: Memory Standard Return Policy -$15.99 Saving
$15.99
$0.00
select item 6 quantity of item 6

G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-4GBRL
Item #: N82E16820231277
Return Policy: Memory Standard Return Policy $109.99
select item 7 quantity of item 7

Intel X25-V SSDSA2MP040G2R5 2.5" 40GB SATA II MLC Internal Solid State Drive (SSD)
Item #: N82E16820167025
Return Policy: Limited Replacement Only Return Policy
Protect Your Investment (expand for options20-167-025|hide options20-167-025)
Service Net Replacement Extended Warranty
The product will be replaced and shipped directly to you at no charge(more info20-167-025.0.120)

1 year: $17.99
2 year: $26.99
-$10.00 Instant
$124.99
$114.99
select item 8 quantity of item 8

AMD Phenom II X4 955 Black Edition Deneb 3.2GHz Socket AM3 125W Quad-Core Processor Model HDZ955FBGMBOX
Item #: N82E16819103808
Return Policy: CPU Replacement Only Return Policy
Protect Your Investment (expand for options19-103-80810|hide options19-103-80810)
Service Net Replacement Extended Warranty
The product will be replaced and shipped directly to you at no charge(more info19-103-8081.0.120)

1 year: $19.99
2 year: $36.99
Antec Nine Hundred Two Black Steel ATX Mid Tower Computer Case
Item #: N82E16811129058
Return Policy: Limited Replacement Only Return Policy -$30.00 Instant
-$15.00 Combo
$298.99
$253.

The only thing that worries me is maybe the PSU. I know Antec/Corsair are preferred but I'd consider OCZ to be a 2nd tier PSU. Not the best but still quite capable.
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a b B Homebuilt system
April 27, 2010 7:11:45 AM

Bump
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a b B Homebuilt system
April 27, 2010 8:31:12 AM

Quick bump before I go home from work. Trying to keep it at the top John.
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a b B Homebuilt system
April 27, 2010 10:36:19 AM

Home from work and bumping because I really want this guys new rig that I helped pick out for him to work!
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April 27, 2010 12:51:19 PM

I would start off putting the front panel wires back like they were. It worked, but thought was wrong and switched. Probably was right in the first place.

Next step bread board time, and just use a screwdriver to short the power pins to turn it on. Dont even hook up front panel wires for bread boarding.
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April 27, 2010 1:52:00 PM

Thanks for the write-up Christopher. I won't get any more feedback to you guys for about 11 hours, but tonight I plan to disassemble and re-assemble in hopes of finding a lost screw. I also plan to check my other computer and an old parts computer for a speaker I can use for troubleshooting.

The front panel wires were definitely wrong the first try. I had the power button hooked up to the speaker. The other two may have been right.

I powered up using the on-board power button on my successful attempt. Right now I'm really hoping that when i was turning the board from upright to its side trying to get the right switch combinations one of the screws now missing from the stand-offs fell and became lodged somewhere. I have found at least 1 screw, but it looks like I'm missing more.

I'm fairly confident I didn't burn up my CPU as the fan WAS on during the successful boot. I'm hopeful its between the PSU and MOBO at the moment, but hopefully the beep codes will help further tonight. If I don't have a speaker, I'll try to find a local shop with one.
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a c 122 B Homebuilt system
April 27, 2010 5:14:27 PM

You are on the right track. While the system is apart, go ahead and breadboard it - with the speaker. There's a paragraph in the breadboard thread where I talk about build the PC in stages, testing as you go.

Case wiring - Remember, the switches are non-polarized. For the LED's, the white wire is the negative wire.

You must find all of the dropped hardware.

I use Antec 900 cases (3 :)  ) and I always install the PSU last just in case I do drop a screw.
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a b B Homebuilt system
April 27, 2010 11:15:58 PM

Just looked at a picture and got an email from John.

I saw what appeared to be a steel/aluminum L shaped bracket of somekind that comes off the motherboard and might touch the motherboard tray.

Regardless, he will be taking everything apart and reinstalling everything from scratch.
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April 28, 2010 1:05:04 AM

After taking everything apart and adding 1 component at a time, I determined the item which causes me to lose power/short circuit. When I connect one of the (6 prong, black, not pci express, with a 4 little prong end) cables from my PSU to SYS_FAN1 the computer will no longer start. So, I'm unsure as to how to connect the case fans. I can't tell from the motherboard manual or the case manual.

So the computer will at least start with the CPU fan spinning (haven't hooked up a monitor yet) with the GFX, CPU, HSK, both sticks of RAM, both hard drives, and the CD drive.

FYI: There weren't any screws hanging around in the case. I thought I had missed one, but apparently not. Nothing in the PSU either.
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a b B Homebuilt system
April 28, 2010 1:23:48 AM

Looks like John plugged a power wire from his PSU INTO the SYS_FAN1 outlet. So I'm having him remove that and see if everything works out ok.
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Best solution

a b B Homebuilt system
April 28, 2010 2:49:44 AM

Just talked to John, he is now installing Windows 7. Seems that power cable that he plugged into SYS_FAN1 was messing everything up.

I think he was under the impression that the SYS_FAN1 needed power to run his case fans.

I pointed him in the right direction with the 4-pin molex connecting up to all his case fan molex chain(Antec 902)

I can say this is solved, and luckily it doesn't seem to have damaged anything

/solved.

I think this is so rare and off-the-wall that it doesn't need to be added to the NO POST sticky. Kinda just weird I guess. This would also fall under step 1, read the motherboard manual maybe?

I know on my 1st build I had another computer to use as a reference.
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April 28, 2010 4:11:50 AM

Best answer selected by didyapageme.
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April 28, 2010 4:14:02 AM

I felt like neither the motherboard manual or case manuals were really specific about how that connection was hooked up. Thought maybe if I hadn't read that section of the manual mentioning SYS_FAN1 and 2 I would have just used the molex :??:  Thanks for explaining it to me though. Thanks everyone for the advice.
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a b B Homebuilt system
April 28, 2010 4:26:56 AM

Hey I'm just really glad we got it all figured out. Enjoy your build!
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!