Dell Optiplex 3010 7 GPU Problem

[stosem]

Hi,

I'm using Dell Optiplex 3010 which has 4 PCI-Express slots(1x16 and 3x1) and I'm using PCIe 1 to 4 PCI express 1X Slots Riser Card(like this https://www.aliexpress.com/item/PCIe-1-to-4-PCI-express-1X-Slots-Riser-Card-Converter-Add-On-Card-4-Ports/32814708108.html?spm=2114.search0304.4.120.Y1xyWg) trying to run 7 GPUs on one mobo, but when I connect all the GPUs the PC won't start. All the four led numbers at the front of the PC are on(not flashing) and screen won't start. When I connect 6 GPUs(no matter how, 4 to the MOBO + 3 to the extender, or 3 to the mobo + 4 to the extender) it runs like a charm.

I've updated the BIOS to the latest version(A17), tested with different raiser, PSUs, GPUs, etc. I checked the BIOS settings, but I think I'm missing something there.

CPU: Intel Pentium, G2030 3000MHz 3MB,
RAM: 4GB DDR3
Dell Optiplex 3010 Desktop Computer(http://www.dell.com/downloads/global/products/optix/en/optiplex_3010_technical_guidebook.pdf)

Sorry for my bad English.
Thanks in advance.

[1714134067]

1714134067

[1714134067]

1714134067

[1714134067]

1714134067

[Vann]

Not all motherboards can run those PCI-E slot multipliers. I'm surprised you were able to get a Dell running with six cards. If possible, try setting all the PCI-E slots to GEN 1 in the Bios, but even then it may not be possible to have all the multiplier slots work. Also check if Windows is installed in UEFI mode, not legacy mode.

[stosem]

There are no PCI-Express settings in BIOS. The PC works with four GPUs connected to the extender and two GPU raisers connected to the mobo(or three GPU raisers connected to the mobo and 3 GPU raisers connected to the extender), but when I connect the seventh GPU the PC powers on but all diagnostic lights are on(not flashing) and the monitor is not starting. 

[madzak]

witch version you have, MINI TOWER COMPUTER (MT) or DESKTOP COMPUTER (DT) ?
thanks

[CryptoWatcher420]

just build a dedicated mining rig dude, geeze

[madzak]

I cant afford a build, i have a small budget,
OEM will cut a big chunk (mobo ram cpu & an OS)probably the internal psu would run ok with ram/cpu/hdd/mobo,with a 2psu adapter could put a decent psu to get the hang of the gpus .