Bad Mobo? I'm new to this so I want to hear what you guys have to say.

deafskeptic · Dec 19, 2013

I'm having trouble getting past the black screen and most of the time my new rig won't start at all. There's no noise. It won't bios at all even when I press delete. Once I did get did get LED lights to go on and fans sounded loud but I never heard any beeps.

I've checked and double checked and tripled checked to see if all connections are plugged in. PSU is plugged in both 4 and 20 pins. Front panels cables are plugged in. So is my driver and sshd.

I decided to breadboard this with just mobo, cpu and psu (it passed the paper clip test) on top of cardboard in my chair. PSU, HSF went off very well so no problems. I also heard beeps because I had taken out the memory.

It beeped again when I entered the memory sticks incorrectly. That's the only time I ever heard it beep. It has the speaker thing installed next to where I have my front button cables are. (pwr button power off, hdd led, led -, led +)

I added monitor from my old computer to mobo then I put in my vid card. The card fan started to spin but montior said no vga display and it never went to bios. checked card. It doesn't seem bent and I don't see bent pins in the PCIe slot. I decided ok..maybe it will bios if i put it in the case when I'm done.

New monitor also works with my old comptuer. I'm using right now.

I added SSHD to this. I didn't need to add my dvd as I already knew it worked from when all the LED lights went on. I was able to open it up and put disk in it then. There were no more beeps but still black screen.

Oh every time, I put stuff in my bread box, I would turn off my psu then unplug it, well you get the routine.

I put everything back in and got the black screen when I turned it on again.

Ok, I tried to rearrange front button LED cables 3x to no avail.
I got a red light on the front of my case but nothing else. Not sure if I got the polarity right or not.

I was able to start stuff on my breadboard when I used a flat screw driver.
Do I have a bad mobo? I'm new to this.

Anyway, here are the specs:

Kingston HyperX Blu 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (4)

RAIDMAX HYBRID 2 RX-630SS 630W ATX12V V2.2/ EPS12V SLI Ready CrossFire Ready Modular Power Supply,

1 x ASUS VE247H Black 23.6" Full HD HDMI LED BackLight LCD Monitor

1 x Rosewill LINE-M Micro-ATX Mini Tower Computer Case, Dual USB 3.0,

Intel Core i3-3225 Ivy Bridge 3.3GHz LGA 1155 55W Dual-Core Desktop Processor Intel HD Graphics 4000 BX80637I33225

LITE-ON Black 18X DVD-ROM 48X CD-ROM SATA DVD-ROM Drive Model iHDS118-04 - OEM

1 x ASUS P8B75-M/CSM LGA 1155 Intel B75 HDMI SATA 6Gb/s USB 3.0 Micro ATX Intel Motherboard

1 x SAPPHIRE 100366L Radeon R7 260X 2GB 128-bit GDDR5 PCI Express 3.0 CrossFireX Support OC Video Card

swifty_morgan · Dec 19, 2013

did you screw the standoff's in before bolting your mb in?

alexoiu · Dec 19, 2013

Try starting the board with only CPU, CPU fan installed, single RAM module inserted, monitor connected to the onboard VGA or DVI, keyboard and mouse.

deafskeptic · Dec 19, 2013

Yes, the mobo is screwed on inside case.

I believe I said I had breadboarded this with only cpu, mobo and psu. Then I added memory one stick at a time. Perhaps I should have made it clear that I added one stick back at a time.

I will try it again with cpu and hsf and one stick again though I have my doubts that this will work. I'll let you know how that goes though this may be a few hours before I do this.

deafskeptic · Dec 19, 2013

oh yes, i'll try this with montior this time.

swifty_morgan · Dec 19, 2013

didn't ask if it was screwed inside of case. asked if you screwed the standoff's on the motherboard tray before you set the motherboard in.....

deafskeptic · Dec 19, 2013

No. I screwed it in once I placed it in the computer case. I don't see how I can do that out of the case. It's a great way for me to lose screws/standoffs. I take it not all mobos are like that.

I thought I might have put screws in wrong holes but according to my manual, all the holes are to be filled up by standoffs.

There's no holes that aren't meant to screwed in on my mobo. Here's the url to it: http://dlcdnet.asus.com/pub/ASUS/mb/LGA1155/P8B75-M/E7437_P8B75-M.pdf

deafskeptic · Dec 19, 2013

Ok, I followed Alexoiu's suggestion.

I hooked up my old monitor (VGA) to my mobo and hooked up PSU to mobo and left one stick of memory in along with HSF and CPU. I was able to short it. HSF ran quite loud. Even though I had my finger on DELETE next to the end key, it never went to BIOS.

No beeps this time.

I ran the whole thing on my rubber mat and a longer power cord this time. I felt it would be safer this way.

I made sure keyboard was on before I started this up.

When I took stuff out of my case, I dropped my SSHD and I hope it's ok.

alexoiu · Dec 20, 2013

If starting the board, only CPU and CPU fan installed, are you getting 1 long, 2 short beeps (I guess that there is an internal case speaker connected to the motherboard)? Is the CPU fan spinning when starting the board?

deafskeptic · Dec 20, 2013

No sound that time. Yes, Mobo has that internal speaker. I have it installed next to my front panel switches.

I tried it again with no sticks and just CPU, Mobo, PSU. No beeps this time. Odd. I put my ear close to mobo to hear beeps. I could hear the HSF going fast and loud.

For the record, I can hear my old PC beep when I start it up though I admit it's much quieter than my new HSF.

deafskeptic · Dec 20, 2013

I think the internal speaker came with my case. it's that itty bitty thing with a cylinder thing at top and a couple of wires attached to a 4 pronged plug.

alexoiu · Dec 20, 2013

If no beeps, then it's either the CPU or the mobo. Try reseating the CPU and installing the stock CPU fan. Check the CPU socket for bent pins.

deafskeptic · Dec 20, 2013

CPU itself looks fine but some of the pins in the CPU socket looks bent to me. Should I return board if I can't straighten out the pins with card?

alexoiu · Dec 20, 2013

You can try it. If not working, then RMA it. Can you post a picture of the socket?

swifty_morgan · Dec 20, 2013

some of them? don't they all look "bent" even before setting the cpu in?

and you better check the rma.............. i think bent pins aren't covered.......... fault of purchaser/builder

deafskeptic · Dec 20, 2013

well here's the url of my cpu socket photo: http://www.flickr.com/photos/112041078@N03/

Looks bent to me.

alexoiu · Dec 20, 2013

They look bent to me too. Lot of them. What happened?

deafskeptic · Dec 20, 2013

I don't know. Socket was difficult to open and I think I ended up putting my fingers on some of the pins. I don't recall having any problems putting in CPU. Well, guess it's a little late to undo this.

deafskeptic · Dec 20, 2013

If i get new mobo, well i know how to open it without problems this time.

swifty_morgan · Dec 20, 2013

deafskeptic :

the ones in the lower right? yup, look messed up to me. good luck convincing the seller it wasn't your fault.

deafskeptic · Dec 20, 2013

Just bought now mobo (same as one with bent pins). Not going to try getting a refund.

deafskeptic · Jan 3, 2014

Well mobo came and I got to do ever I'm sure everyone heard about that one. Just thought I'd bump this up.

When I breadboarded this with just psu cpu and no sticks, it never made a sound even though I stuck the speaker on the new mobo. The ok memory light did come on though. Two bad mobos in a row? I think not.

HFS was much quieter this time.

I will say this much for my newbie PC building experience. I learned how not to do it and what parts to order first.

Anyway, when I added sticks, it didn't make a sound either.

There were never any beeps. I was hoping I wouldn't have to order a new CPU. Its too late to RMA it. (long story but it has to do with banks and transporation problems)

When I took my PC to the living room, the lights came on but the screen stayed black even with my finger on delete for bios. I could hear fans too. I never heard any beeps. I was using the HDMI cable with this computer.

Since my old computer has HDMI ports, I thought I'd test HDMI cable on that computer. I found out it wouldn't work with my old computer.

I thought mm. Maybe it wouldn't work with the new one and the new one really is working.

I used a (monitor has several ports like HDMI and VGA) VGA cable and I came with the same result as before. Computer lit up and fans came on. I could turn it off by pressing the button. I couldn't do that with the old mobo.

sigh. First I ordered the wrong PSU, then I damage my mobo, drop my SSHD and now CPU may not be working properly.

What do you think, guys?

alexoiu · Jan 3, 2014

When starting the board with only CPU and CPU fan installed, both 24 and 8 pin power cables connected, is the CPU fan spinning? If yes and no beeps, then... yes, it might be a CPU issue.
From Intel:
"A boxed processor is sold in a factory sealed package that contains the processor, a fan-heatsink, product manual, and an Intel sticker. The product manual contains installation instructions and warranty terms and conditions. Be aware that Mobile and Enthusiast SKUs typically do not include a fan-heatsink. Each boxed processor carries a 3-year limited warranty."

deafskeptic · Jan 3, 2014

Yes it's spinning.

alexoiu · Jan 3, 2014

Then try RMA-ing the CPU.

Bad Mobo? I'm new to this so I want to hear what you guys have to say.

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