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UniqueName475
Joined: Jul 09, 2007
Posts: 2
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 Posted: Mon Jul 09, 2007 11:12 am Post subject: System not starting properly (display) |
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Finished setting up some new and old components in a case but on powering on I am not getting any display, there are no warning beeps, the system appears to be functioning correctly but no display.
Here are some of the steps I tried.
Switching out all ram sticks and testing each one individually in each slot separately.
Removed front audio and front USB connectors.
Switched out gfx card.
Switched between a flat panel and CRT.
The mobo is Gigabyte K8 Triton GA-K8N Pro-SLI
This is actually making me ill as I don’t have a system to fall back on at the moment but rely on the pc for work.
In a word, HELP! |
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Werebo
Joined: Aug 09, 2003
Posts: 4078
Location: SE London, UK...
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| Posted: Mon Jul 09, 2007 12:42 pm Post subject: |
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Allo UniqueName and welcome to the lockergnome Forum 
Firstly, have you double-checked the power connections to the motherboard?? both the 20-odd power plug and the 4-way power plug??? Is it making ANY beeps at all??? Some motherboards make just 1 beep as an 'All OK' signal.
2nd Have you double-checked that ALL the various jumpers are set correctly for CPU type etc. From what I could see of the picture on the Gigabyte site, there's a lot of them  . Sadly, the Gigabyte site seems to be slow, so it's taking ages to download the .pdf manual to see exactly what's where and so forth  .
3rd Have you double checked the case accessories cables (lights, switches, case speaker etc.) are connected correctly???
4th Have you checked to make sure you have the right CPU for the motherboard??? It might sound a bit daft, but it's been known to happen, along with inserting it into the socket the wrong way round. 
5th Did you apply the heatsink compound between the CPU and the heatsink??? Are the fan(s) spinning up ok???
Sorry for having lots of questions, but we have to start from scratch. |
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UniqueName475
Joined: Jul 09, 2007
Posts: 2
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| Posted: Mon Jul 09, 2007 1:38 pm Post subject: [Login to view extended thread Info.] |
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Hi Werebo, thanks for your response, I split up the answers below for easier reference.
| Werebo wrote: |
| Firstly, have you double-checked the power connections to the motherboard?? both the 20-odd power plug and the 4-way power plug??? Is it making ANY beeps at all??? Some motherboards make just 1 beep as an 'All OK' signal. |
Yes, these appear to both be seated correctly, the paper manual I have states it should make 1 short beep for system booting correctly but I am not hearing any, as there is no internal speaker on this case I figured I would try plugging in a pair of headphones to the audio on the back of the case but there were no beeps audible from them either.
| Werebo wrote: |
| 2nd Have you double-checked that ALL the various jumpers are set correctly for CPU type etc. From what I could see of the picture on the Gigabyte site, there's a lot of them . Sadly, the Gigabyte site seems to be slow, so it's taking ages to download the .pdf manual to see exactly what's where and so forth . |
I have the same problem with that site, it’s a bit of a pain to navigate but regarding the jumpers, it’s pre-set to my specs as it’s an existing system in entirety just with a new case and GFX card, the card would not fit inside my old case as it was so I decided to switch to an old CM stacker case I have been saving.
| Werebo wrote: |
| 3rd Have you double checked the case accessories cables (lights, switches, case speaker etc.) are connected correctly??? |
The only accessories that come pre-installed are three double header USB, one Firewire, front audio and the HDD Activity LED, Power LED + Switch, Reset Switch etc.
The front Firewire won’t work as the pre-set gigabyte board pins don’t match the standard plug on the case front connector but all other parts were connected ok initially.
Since my first few tests I have removed the front audio and USB in order to eliminate them as a possible cause.
| Werebo wrote: |
| 4th Have you checked to make sure you have the right CPU for the motherboard??? It might sound a bit daft, but it's been known to happen, along with inserting it into the socket the wrong way round. |
Yup, it should be fine, it was working prior to the moving of case and I double checked the pins and gold position triangle which check out ok.
| Werebo wrote: |
| 5th Did you apply the heatsink compound between the CPU and the heatsink??? Are the fan(s) spinning up ok??? |
Yes, fresh paste with the heatsink/fan that is seated correctly and plugged in.
All case fans/video card fan and CPU fan are lit and spinning, it also sounds like its accessing the hard-disk as it would during post but with no display I can’t really tell for sure.
| Werebo wrote: |
| Sorry for having lots of questions, but we have to start from scratch. |
No problem, the more thorough the questions the more likely we can narrow down the cause. 
Thanks again for helping with this. |
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Werebo
Joined: Aug 09, 2003
Posts: 4078
Location: SE London, UK...
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| Posted: Mon Jul 09, 2007 7:21 pm Post subject: [Login to view extended thread Info.] |
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| UniqueName475 wrote: |
| Yes, these appear to both be seated correctly, the paper manual I have states it should make 1 short beep for system booting correctly but I am not hearing any, as there is no internal speaker on this case I figured I would try plugging in a pair of headphones to the audio on the back of the case but there were no beeps audible from them either. |
The headphone socket or speaker socket on the back of the case won't work until later on when the Operating System has loaded the drivers for the sound-card. Until then, the motherboard can see it's there but not talk to it. You'll need a cheap electromagnetic speaker (the type found in very cheap small radios that has a paper cone), NOT a piezo-electric one, connected to the appropriate pins to hear the beeps. It's worth getting one of these hooked in, there might be a diagnostic beep warning that's going unheard.
You mentioned that, according to the paper manual, it should make 1 short beep for 'All OK', but it's not doing that, due to lack of a speaker. Can you access the BIOS as soon as you boot up??? Tapping the 'Del' or Ctrl+F1 key should bring the screen up. Check the settings to make certain all is as it should be. If accessible, check the PC Health Status page.
Another thing worth checking is that the motherboard is lined up properly on the mounting 'stand-off' pillars, those little metal posts than the motherboard screws go into. Make sure that the pillars are on the soldered rings around the screw-holes on the board and not overlapping onto any tracks anywhere. It only needs a millimetre or less on some boards to make the wrong contact. |
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goretsky
Joined: Dec 07, 2002
Posts: 9041
Location: Southern California
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| Posted: Tue Jul 10, 2007 3:00 am Post subject: Re: System not starting properly (display) [Login to view extended thread Info.] |
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Hello,
Have you tried removing the motherboard and power supply from the case, placing them on a nonconductive surface and then powering up the system by shorting the two pins on the PWR jumper? If so, did the computer boot up properly? If it did, then it could be the motherboard is grounding out somewhere on the chassis.
Regards,
Aryeh Goretsky |
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User: inactive
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| Posted: Tue Jul 10, 2007 10:20 am Post subject: [Login to view extended thread Info.] |
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After reading this entire thread, I'm thinking of at least two items not previously mentioned.
1. Is there anything plugged onto the reset pins on the motherboard. Something like an LED on those pins can keep the mobo in a RESET condition.
2. The bios may have gotten scrambled. With all power removed from the system, take out the CMOS battery for twenty minutes or more. After a "time-out", replace the battery with a new one. Then restore the power and again attempt a boot-up. (any battery showing less than 3.0v on a digital voltmeter can be considered as "BAD".
A guy gave me a nice little HP Pavillion that he thought was completely dead.
About a month later I got to examining it and found a low battery. I removed the old battery and let the system set for an hour or so, then installed a new battery and the system came up normally, just like nothing had ever happened. Since then, I've seen that on at least two other systems.
Good Luck,
Shadow  |
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