Build upgrade - "please plug in the PCI-E connectors to your gfx" despite both being in (520W PSU)

simonnance

simonnance

simonnance

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Just replaced my old 280 GTX (225 W TDP) and 3 sticks of ram with a new 670 (MSI GeForce GTX 670 OC - 170W TDP)

Old rig runs fine, new won't boot despite the lower power consumption. Claims i've not plugged the power into the gfx card. Have tried powering in by the 3 pin PCI-Es and via the molex->PCI-E adaptor.

PSU is an old modular Corsair HX520W, so a decent PSU.

Thoughts? I don't have a more powerful PSU to hand to test if it's the PSU power.... don't want to upgrade it it's a graphics card problem.
 
it's the standard on screen boot message - "please power down and connect the PCI-E power cable(s) for this graphics card"
 
OK, now the thing just won't boot. Back to start settings, nothing. Bios LED reads FF, which means it should be booting, but the screen is blank.
 
you mentioned you were using adaptor, but the HX520 came with PCI-e cables to connect it to the PSU, have you tried connecting with the cable without any adaptors? I doubt i'll make a difference though
 
Well it sounds like one of the two new pieces of hardware is causing issues, you need to rule one out. Pull the GTX670 and put the GTX280 back, if it boots, put the new memory in. If it works then I'd memtest it, then check the BIOS is updated.
 
Older boards can have compatibility problems with newer graphics cards without updating the BIOS, so use the old graphics card to check it's up to date.
 
Speed said:
Well it sounds like one of the two new pieces of hardware is causing issues, you need to rule one out. Pull the GTX670 and put the GTX280 back, if it boots, put the new memory in. If it works then I'd memtest it, then check the BIOS is updated.
Click to expand...

simonnance said:
OK, now the thing just won't boot. Back to start settings, nothing. Bios LED reads FF, which means it should be booting, but the screen is blank.
Click to expand...


It now won't boot even with the old gfx and ram back in. :(
 
Is that with the old card and original ram or the new stuff?

Also what is the model number of your motherboard? GA-EX58-UD5?

Edit: If memory serves 5D is an issue with the graphics card being detected, the board won't boot without one. So if you have one installed, make sure it is fully seated and properly wired up to the PSU. Check the connections are properly seated as well and look at the PCI-E power connectors before plugging them in to make sure all the pins are level and even.
 
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It's possible there's something in the slot causing the cards not to be detected properly. Check the slot's clear, give the connectors a careful wipe, etc.

Also try removing the mains cable to let it completely power off.
 
Speed said:
Is that with the old card and original ram or the new stuff?

Also what is the model number of your motherboard? GA-EX58-UD5?

Edit: If memory serves 5D is an issue with the graphics card being detected, the board won't boot without one. So if you have one installed, make sure it is fully seated and properly wired up to the PSU. Check the connections are properly seated as well and look at the PCI-E power connectors before plugging them in to make sure all the pins are level and even.
Click to expand...

Original card and ram.

I've just about got it to boot with a mates old 8600GT, which doesn't need a power connector. Will flash the BIOS and see what happens.
 
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