New build not posting.

solado · 2 Jan 2011 at 20:33

Greetings to one and all

I recently purchiced a XFX 6850 as a christmas present to my self, to which didn't work so it put it down to being an nforce chipset conflict on my old motherboard.
I replaced that with a Asus Crosshair 3 which supports Cross fire.

However i have now come into a new problem, the system doesn't power on when the graphics cards connected 6 Pin PCI-E power adaptor just causes the system to get a simple surge of power and boot ups the fans then cuts out.
I then tried to replace the graphics card with my old Nvidia 260, which caused the same problems (and i know this works).

When i disconnect the graphics cards and take them out it works fine.

Also one point the PSU was the making a clicking noise... so im tempted to say the PSU doesnt have enough juice ? I dont want to spend £50+ more since i spent £500 already on this upgrades.

I have a 700W JeanTech PSU.

Should i RMA everything ? Any suggestions ?

stulid · 2 Jan 2011 at 20:36

you connected the 4/8 pin atx connector on the motherboard.

solado · 2 Jan 2011 at 20:41

Yea, doube checked and swapped all the PSU connectors around

stulid · 2 Jan 2011 at 20:44

ocz psu still in warranty?

solado · 2 Jan 2011 at 20:46

3 years old, problem is i dont want to buy a new PSU and its not that, argh this is frustrating to no end.

I just plugged it into my old board, while there is no display with the old card its not cutting out.

stulid · 2 Jan 2011 at 20:52

Try one ram stick at a time, in different slots.

solado · 2 Jan 2011 at 20:56

Tried and failed, power is physicly being cut out from the Mobo because the LEDs go off and pop back on after a second.

solado · 2 Jan 2011 at 20:59

Just tried both cards in a different PCI-E slot, same fault... im really lost now.

RJC · 2 Jan 2011 at 21:01

Try running the motherboard external to the case to rule out a short.

James_200sx · 2 Jan 2011 at 21:09

Try an old pci graphics card or your old pci-e grpahics card.

stulid · 2 Jan 2011 at 21:12

Can you list exact specs, memory make, and part numbers etc.

solado · 2 Jan 2011 at 21:16

Im going to work on the basis if i throw more money at it the problem will go away, im going to be buying a new PSU.

Here is the specs for the laughs.

AMD Phenom II X4 Quad Core 955 Black Edition "125W Edition" 3.20GHz (Socket AM3)

Asus Crosshair III Formula AMD 790FX (Socket AM3) PCI-Express DDR3 Motherboard

G.Skill RipJaw 4GB (2x2GB) DDR3 PC3-12800C9 1600MHz Dual Channel Kit

JeanTech 700W Storm, Active PFC, Power Watcher, ATX2 PSU

stulid · 2 Jan 2011 at 21:17

JeanTech 700W Storm, Active PFC, Power Watcher, ATX2 PSU

In your first post you said a OCZ 700W PSu? was that a mistake? think you found a likely cause of your problems.

RJC · 2 Jan 2011 at 21:20

The PSU is a awful make / model, try changing this, but can you try running external to the case.

stulid · 2 Jan 2011 at 21:22

Ah just seen your first post edit, can you borrow another psu of someone? a PSU of a known make and quality?

If not, for £45 this - http://www.overclockers.co.uk/showproduct.php?prodid=CA-042-BQ&groupid=701&catid=123&subcat=1083 would rule out any power issues.

solado · 2 Jan 2011 at 21:47

Was a mistake, listed OCZ from my brothers build i did a few weeks back.

Ran it external to the case, same problems.

As i narrow it down im going to say it is the PSU, it cuts out, sometimes just flickers the LED with a clicking so im guessing the voltage regulators cutting out because its being drained to much... atleast im saying this because its the only possable thing it could be.

http://www.overclockers.co.uk/showproduct.php?prodid=CA-032-OC&tool=5

Any good ?

stulid · 2 Jan 2011 at 21:49

solado said:
http://www.overclockers.co.uk/showproduct.php?prodid=CA-032-OC&tool=5

Any good ?

Its ok, but the Bequiet above is cheaper and will do more than a good enough job.

And I would rather have this - http://www.overclockers.co.uk/showproduct.php?prodid=CA-117-AN than that OCZ.

solado · 2 Jan 2011 at 23:22

Decided and just went ahead witht he PSU order; will be here by wednesday due to bank holiday.

im worried because they state on the website there is a £10 charge on goods not found faulty so if i misdiagose a part then there will be charges added :/

solado · 4 Jan 2011 at 19:28

Update:

My power supply arrived today and its worked a treat

Thank you to both who helped me; much appreciated !

RJC · 4 Jan 2011 at 19:31

Thats good news