From the seasonic website it looks like those two 8 pin PSU-CPU cables actually have a split thus allowing you to take one to the 8 pin connector and use half of the other for the 4 pin connector.

edit: wait a minute.

from the datasheet that psu only has one 8pin cpu connector that can be split in two.

edit: https://seasonic.com/g12-gm/ this one seems to have what you require.

Thanks for the quick reply.

Am I correct in hearing that I can use a PSU that has 2 8 pin connections and just split one with an adapter?

I have this board - you really need to connect both 8-pin and 4-pin. I don't exactly remember, but most likely both CPUs are powered by the 8-pin and memory by the 4-pin. Now, there are several ways how to do that.

1. PSU that has two EPS 8-pins. One goes to the 8-pin on the board (obviously 😁) and half of the other one to the 4-pin. No need for adapters. Either the cable is splittable 4+4 from the factory... if not then there should be enough clearance next to the 4-pin sou you can plug it as is.Half will be connected, half just "lie next to it".

2. PSU with single EPS 8-pin and PCI-E 6/8-pin. There are adapters available that convert PCI-E 6/8-pin to EPS 8-pin. I have used them in the past and they work fine. So PSU native EPS goes to the 8-pin and the one from adapter to the 4-pin.

3. PSU with single EPS 8-pin and free molex. It is possible to get adapter from molex to P4 4-pin... which should be good enough for this board.

Number 1 and 2 are both perfectly fine for normal use. The third option I would avoid for anything else but quick test to see whether the board even works at all.

Thank you so much for the quick and thorough response.

Since you have this board, do you have any suggestions/feedback that you'd be willing to provide?

No problem 😀

The first thing that comes to my mind is CPU support. What CPUs are you planning to use? It has been a very long time I investigated this matter, but IIRC there are severeal revisions of this board. K8 based Opteron 22xx or 82xx should work always. K10 .... well, let me put it this way - on my board http://hw-museum.cz/mb/67/tyan-thunder-n3600m--s2932-e- I managed to successfully run 65nm Opterons "Barcelona" 23xx or 83xx and also 45nm quad-core Opterons "Shanghai" up to 8386SE. 6-core Istanbul Opterons are supposedly not supported as my board lacks separate rails for CPU cores and uncore part. I never dared to try. Whether some revision of S2932 supports hexacores, I have no idea.

RAM - you need ECC. Reg. DDR2, preferably 667 MHz or more. For optimal performance you need at least 2 sticks per CPU socket. It is possible to use more than one dimm per channel, but that puts more load on the memory controller, so don't get too crazy 😁 I used 12x 1 GB DDR2 sticks... which worked reliably. 16x 1 GB was not stable no matter what. This is the only ECC Reg. DDR2 I had at hand, otherwise I would use something like 8x 2GB.

Chipset - it is similar to desktop nForce 500 series. Runs rather hot, so some fan blowing directly on it would be nice, or good airflow at least. The PCIE slots are 8 lanes each, version 1.0a. SLI should be possible I think, but never tried. The fastest GPU I tried (and worked) was GTX 1080 😁. The sata ports don't support AHCI, so don't bother looking for it 😀

Overclocking is possible, if you really wish. Bus speed can be controlled by nTune utility from the OS. Or if you have ES Opterons, they might come with unlocked multiplier, in that case it is best to leave bus alone and change the multi by TurionPowerCotrol, or similar tool.

This screenshot is from my testing - proof of operation 😀

If you have any questions, feel free to ask 😀

Wow! That is very helpful information.

CPU. I was thinking of running 2 x 2224 SE 3.2GHz (2200 series "Santa Rosa").

RAM. The Wiki article that I've been reading states "All models support up to Unbuffered PC2-6400 DDR2 SDRAM, the socket F 1210 EE model supports Registered DDR2 memory". I was planning on maxing the RAM (would be interested in messing with RAM Drives). But you mentioned that is not reliable. The manual says that it supports 64GB of RAM. I assume that I can use 4GB modules. What do you recommend for the maximum amount of RAM?

GPU. I am tempted to SLI. I'm leaning on using ATI Radeon HD 5970 - building an all AMD system.

Network. I will have a couple or retro systems on a LAN. Is there any reason to use an NIC?

Temperatures. Again, thanks for the heads up with the chipset running hot. I definitely plan on having adequate cooling/airflow.

2x 2224 SE will definitely run - no problems here. I have these too.

Regarding the RAM - it can't hurt to try to max out the board and if it isn't stable, then remove 2 sticks per socket and try again. 4GB modules should be fine but I have no personal experience with these.

Radeon 5970 is dual chip and because of that might be somewhat less compatible with old boards. I never tried 5970 on nForce... but it should run I guess. Also you will run into serious CPU bottleneck in most games.

Onboard LAN is 1 Gbit - if it works properly, there is no need to use another.