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From: Roibert on 28 Nov 2009 18:38
Paul wrote:
> Roibert wrote:
>> My PC consists of a Asus PQ5 Pro board with a Intel Core 2 Duo E7500
>> 2.93Ghx, which I recentlly overclocked to 3.6Ghz using a Titan Fenrir
>> cooler to keep the temperatures down to about 26C from 38C with a
>> standard cooler.
>> RAM is 4Gh of Corsair machted pair (2x 2Ghz)
>>
>> The PSU is a Tagan TG600.
>>
>> The OS is Win7 Pro, previously WinXP sp3, and has been running stable
>> for the last 3 months. I leave it running 24/7 with no problems in the
>> past. Now when I came to the PC this morning, and tried to bring the
>> monitor back to life it stayed black and I heard clicking noises
>> coming from the PC case, with the power led coming on and off.
>> I switched it off for about an hour then tried again where there was
>> nothing at all, no clicking, no sign of trying to start, just dead.
>> I then disconnected all hardware, and took out the cards and tried
>> starting it again, still nothing.
>>
>> Any ideas as to what the problem is/? I first thought the PSU, ann was
>> going to try another one I had but the main plug is only 20 pins and
>> the board socket is 24 pins as well as another socket being different.
>>
>> I am aware it could be the board or even the cpu, but I don't want nor
>> can afford to change the whole lot if I don't have to.
>>
>> Thanks
>
> Swap the power supply, for a test. You got a "clicking noise" and
> "power led coming on and off" and the noise might have been the
> power supply. You can plug a 20 pin into a 24 pin. Just line up
> pin 1 with pin 1 and keep the clamp pieces on the same side.
>
> There is no need to use any adapter cable. Plug it in like this.
>
> http://www.playtool.com/pages/psuconnectors/20in24.jpg
>
> Paul

Yes, I just tried the other 20 pin plug PSU, and the board fires up with
the cpu cooler fan spinning, which is more than it did with the 24 pin
PSU in this morning.

Thanks
From: VanguardLH on 28 Nov 2009 20:00
Roibert wrote:

> Ok, thanks for the explanation etc above. I disconnected all my drives
> as well as taking out any cards which were slotted into the board.

Did that include the video card (if not using onboard video)? If so, the
video BIOS loads before the system BIOS. After all, you can't see the BIOS
screens or POST results unless the video is first working. Put the video
card back in.
From: Roibert on 29 Nov 2009 04:44
Jef Roe wrote:
> "Roibert" <bob(a)despammer.com> wrote in message
> news:j_qdnYdBSoZXYY3WnZ2dnUVZ8hydnZ2d(a)giganews.com...
>> My PC consists of a Asus PQ5 Pro board with a Intel Core 2 Duo E7500
>> 2.93Ghx, which I recentlly overclocked to 3.6Ghz using a Titan Fenrir
>> cooler to keep the temperatures down to about 26C from 38C with a standard
>> cooler.
>> RAM is 4Gh of Corsair machted pair (2x 2Ghz)
>>
>> The PSU is a Tagan TG600.
>>
>> The OS is Win7 Pro, previously WinXP sp3, and has been running stable for
>> the last 3 months. I leave it running 24/7 with no problems in the past.
>> Now when I came to the PC this morning, and tried to bring the monitor
>> back to life it stayed black and I heard clicking noises coming from the
>> PC case, with the power led coming on and off.
>> I switched it off for about an hour then tried again where there was
>> nothing at all, no clicking, no sign of trying to start, just dead.
>> I then disconnected all hardware, and took out the cards and tried
>> starting it again, still nothing.
>>
>> Any ideas as to what the problem is/? I first thought the PSU, ann was
>> going to try another one I had but the main plug is only 20 pins and the
>> board socket is 24 pins as well as another socket being different.
>>
>> I am aware it could be the board or even the cpu, but I don't want nor can
>> afford to change the whole lot if I don't have to.
>>
>> Thanks
>
> if there's absolutely nowt,
>
> 1. Check mains plug fuse and if OK then,
> 2. Check PSU fuse, if fitted, and if OK then,
> 3. try another PSU.
>
> I also think a PSU can be run up with nowt connected by shorting 2 of the
> sockets on the 20 way. You will need to check the manual.
>
>
>
The mains plug fuse is ok, as I tried another PSU with a 20 pin plug and
the cpu fan fired up.
I couldn't see a fuse on the PSU, but I took it back from where I bought
it for them to check it out.

Thanks
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