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I have just finished building the following machine:
3500 Winchester
DFI SLI-D
Asus Star Ice
Corsair 3200 Twinx
200gb SATA Seagate Barracuda
XFX 6800GT
Tagan 480W PSU
Guess what when I start it no video output!!!! All the diagnostic LEDS on the motherboard come on and there are no POST beeps. Any ideas? I have tried everything I can think of. The only problem is I have no additonal components at the moment to test it with e.g. second monitor etc.
:eek:
I thought I'd killed my ASUS SLI board after a waterleak during kit reshuffling. Turns out I'd knocked out the +12V connector, which resulted in a failed boot and no beeps. It's worth checking!
Should you be able to boot the machine wihtout and Memory ?
you cant boot without memory. Does the manual say what all LEDs on equates to?
Check the board isnt shorting on the case, thats the best place to start.
I am able to start the power and the leds come on even if I have no memory in the slots
Quote:
Originally Posted by rubbishrubbishrubbishrubbishrubbishey
What is it best to do if it is? What effect would this have?
If you boot with no memory your board should beep at you with a certain number of beeps to say it's missing it's ram, if it does this then at least you know it's posting?
Quote:
Originally Posted by Olly1234
I will try that again
Not too sure about DFI but I know my Asus Sli machine has an SLi selector card to select Dual or single Vid cards so i'd imagine it does too, did you check position of this as on the Asus the manual says it comes set to single but in reality it was set to Dual could posibly explain no video
I am going to check that tonight. The manual they shipped with my board did not have the jumper settings for this in. I have had to find a more in depth manual with the correct settings on the web today.
Thanks for all the suggestions so far, keep it comming.
At best its causing a short between two traces which is why your machine wont boot, at worst its fried something because its putting too much voltage through something.Quote:
Originally Posted by grand_witch
Best thing to do is unscrew the mobo from the case, and check there is nothing underneath it - you shouldnt have to unplug anything or take the mobo out of the case, just run your hand under it.
Make sure the spacers are all in the right places, and then reseat the mobo again.
I am a bit confused does anyone know if it is bad that all four diagnostic LEDS have come on? The manual not very clear on this.
OK. I have this motherboard and I'm embarrased to say i spent a good four hours with the same problem.
All four leds ON means that the system cannot detect anything (checks CPU first). After each successful check the next light goes off. CPU first, then memory then disk I think. The final light goes off after a successful post.
Mine was not detecting the CPU because I did not have both power connectors in place. I had plugged in the 24pin one(20+4pin side by side on my OCZ modstream). But there is another connector directly next to it (to the right) which is for an additional 4 pin power connector (square shaped) that I think powers the CPU.
Silly mistake to make. You sure you have this connected?
I've just downloaded the manual for your mobo from DFIs site (just do a google - shouldnt be hard to find)
Quote:
Originally Posted by DFI SLI-D Manual
I don't think I have plugged the 4pin above the A24 pin in I will do that tonight.
You mean on the same connector as the PSUs ATX cable? DON'T!
If you have a 20pin cable you can plug it into the 24pin socket on the mobo fine... no problem - the extra four pins are NOT +12V like the 4 pin connector you'll have on the PSU.
edit: Sorry i missed one of your posts, and understand you do have an extra separate connector, and that your PSU has an addon bit to create a 24pin ATX connector.
I only have two square four pin ones left one labelled p4 and one p4+ the PCI express one plugs into the card. Do I use one of these. Sorry I am being a real pain.
Good question - I'll check its manual for you (if it's available online.)
edit: OK it's 50MB for the product brochure - Tagan your website needs a little work!
There are two required motherboard connectors.
1: The 24 pin one (or 20+4pin ones if your psu splits it.)
2: The additional 4 pin one to the right of this to power the Voltage Regulator Module (VRM).
As said, its important you dont put the 4 pin one joined to the 20pin one in the VRM connector. Its hard to explain, but its outlined on page 58 of the pdf manual.
Im not sure which one of your spare connectors your supposed to put in. The manual says it for a +12v 4 Pin connector. My psu only had one available. Are you sure one of those spare 4 pin connectors is not for a PCI express graphics card?
The PCI express one is labelled PCI express and is already plugged in. Thanks for everyones help I realley apreciate it.Quote:
Originally Posted by Fresco
I have a Tagan 480W PSU. The Tagan comes with two square 4-pin +12V connectors (joined together so you'll need to separate them). You need to connect the P4 lead to the 12V 4-pin connector on your motherboard. Don't connect the related connector labelled P4+ - leave that unconnected.
The Tagan comes with a PCI-Express Y-shaped power adaptor. Coming out of the Tagan you will see two thick grey cables labelled VGA/HDD. Both of these end in 4-pin molex connectors. Plug both of these into the PCI-Express Y-shaped adapter and connect the other end of this adapter (6-pin) into your PCI-Express graphics card.
Now plug the connector labelled P4 from your Tagan to the square 4-pin connector on your mobo labelled 12V or P4 (not sure what it will be called on your mobo).
As Fresco says, do not use the 4-pin power connector attached to the big 20-pin connector to do this! There is a separate 4-pin connector labelled P4 as you observed in a previous post - use this for the P4/12V mobo connector.
Thanks for everyones help it is now up and running.