Help With an Aus P5N-T Deluxe pls

Tenacha

Tenacha

Tenacha

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28 Jul 2011
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7
Hi,

I bought an ASUS P5N-T Deluxe a few years ago and didnt really use it that much up until a few months ago when I installed into onto my system but had a few crashes, so I went back to my old mobo as I didnt have the time to sort it out.

Now that I have the time I want to add an extra gfx card and my old mobob doesnt support SLI and only has two Dimms for DDR2.

My symtoms now are pretty bizarre. It just Fails to Post.

What Ive done so far,

Tried my mobo with one stick of ram, hdd, cd rom, 8800gtx - no signal to monitor, no keyboard lights but internal mobo light, cpu fan, hdd, gfx card, hdd and cd rom all work. Plugged in a speaker and no beep.

Plugged out the HDD, CD Rom, still nothing and no beeps

So thinking that there was something wrong with my mobo, i plugged out the ram, so all was left is the cpu and gfx card and I heard a long beep.

I have reset the CMOS, changed the battery and really am clueless as to what I can do next.

Any help would be much apreciated.
 
Hi and welcome to the forum.

What make and model of power supply are you using?

6 pin PCI-E power connectors in the graphics card?

4/8 pin power cable connected to the motherboard for the CPU?

20/24 pin power supply fitted to the motherboard?

Make sure all the above are connected and make sure they're connected properly.
 
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thank you, been browsing here for ages:)

Im using an OCZ Stealth 600w

I have two 6pin connectors for GFX Card, and I have 8 pin for Mobo.

I have also tried a 7800GT, and got the same results.

Im currently using the PSU and GFX card on another system and never had a crash or a freeze in last 4 months.
 
Sounds like a power issue, try with just half of the 8pin CPU connector, it doesn't need the full 8 pins, just as another test.

I have had this board for about 2 years up until a month or so ago, mine is now in a second system and still running strong.

The only problem I had like that was a silly mistake when I didn't plug to correct power connectors in from my OCZ modxstream 700w PSU
 
Have you tried running a bare bones system outside the case?

Place the motherboard on a cardboard box and connect the minimum components.

This will eliminate any electrical shorting.
 
Thank you all for the replies so far. What ive tried.

Iran it with just one a single 4pin connector - no joy

I hooked it up barebones (looks pretty cool tbh, think i might just bin the case when i get it working :) ) - no joy either

When running bare bones i ran it with both 4pin and 8pin connectors on cpu.

Ive had to use another case when running bare boes as the swich lead wont wont reach and this time im getting a long contuose beep hust after my gfx cards fan kicks in,

So I plugged out my gfx card and if it was a beep last time, this was a damn shreek that came from the board.

I putin anotther gfx card a 7800gt which ill take less power, the fan on that kicks in right away, but after 15 secs i get the long beep.

Usually the beep means bad ram, i i change the ram, try all slots and same thing.

I now just tried switching slots for the gfx card and no joy.

The things i know work are the ram, gfx card and psu as i just took these from another machine.

its the mobo and the chip that are the unknow.

Any other ideas?
 
It's far more likely to be the motherboard than the CPU.

CPU's are pretty bomb proof and difficult to break.

Motherboards are more delicate petals.
 
The motherboard will have a 3 year warranty so it depends on what "a few years ago" means.

If there is any warranty left it would be with Asus directly rather than OcUK.
 
Thank you for your help, its been four years since i bought it, should have returned it when it broke in the first place. good excuse to buy a new one with an i5 :)
 
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