why are these cables so expensive? Is it any different from this $4 cable? (http://cgi.ebay.com/PCI-E-1X-Riser-Card-PCI-Express-Ribbon-Extender-Cable-/180673151583?pt=LH_DefaultDomain_0&hash=item2a10f5825f) and any idea why it costs $2.7 extra to cut the side of a pci-e extender?

ok, makes sense.
is it complicated to cut it?

Plug 'n play ... and the guy obviously knows what he's doing.

Do you have trouble reading dude?

Hey guys I just got my 1x->16x extender and I can't get my comp to pick up the 3rd card. I've tried with and without dummy plug, still no go. Can anyone post up a picture of using a 1x slot with the extender to the vid card? My buddy tried everything even messing with bios and nothing seem to get the video card detected.

Comp stats:

-Win 7 64bit
-Already running 2- 5870, using extender to plug in a third card
-Mother board is Asus P5k Pro with both 16x slots already used and using the extender on a 1x slot.


Any help would be much appreciated!

I've tried different cards and switched them around and all the cards are in good working order. I'll look into that link you sent me thanks Chris. More help please! I have 400mhash that isn't being utilized, the sky will fall soon if I don't get it working asap lol.

Just checked out that article and I see there are 2 pins that must be shorted if the motherboard doesn't allow down pluging. What is it I'm supposed to use to short it with?

Shorting the presence detect pins should correct this issue, one would bridge pins A1 & B17 as in this picture:

A 24-ga wire should slide right into place without forcing.

This is something that seems to effect a small percentage of motherboards, while on the majority it won't be necessary.

Will the 1x extender fit underneath a GPU? For example my rig uses an MSI 790 gd70, with 4 gpus. I'd like to add a fifth using the pci 1x slot, but I'm not sure if I'll need to also extend the gpu that covers that slot.

ok, seems like I'll need to use a dremel tool.

Now the question is power: I'm already using a cpu->pci and 2x molex -> pci.

I have only 2 more molex connectors on the PSU (which has plenty of watts -- 1250)

Do any of these have a chance of working, and which is likely to be better:

1. Split one of the pci connectors
2. Supply half of each of two molex->pcie adapters from a single molex line, using these adapters in two different gpus
3. Split the CPU line (cpu is a sempron 145, and I'm running headless so cpu usage is around 5%. so draw on the cpu line should be pretty low currently)