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Epox 9NPA+ Ultra with 20pin PSU & 24pin adapter?

S

Su1c1da1

Senior member
Hi, quick questions for those who have tried this, did it work? is it running stable? any problems? if so what kind of problems?

Am upgrading my rig and being cheap, don't want to get rid of my old trusty enermax.. it has 26a on the 12v rail.. so wondering if its enough. Thanks in advance.
 
I do not know about your epox, but my Asus a8n-e ran just fine with the 20 pin from the Antec TP480. I subsequently have bought a 20>24 adapter and it is running fine. Did not seem any difference one way or another. Try and see. There was a good link to single vs dual rail PSUs somewhere on these forums, which seemed to indicate that other than safety, there really was not much difference between dual/single rails.
 
From what I've read only(I think there is a huge thread about this-I'll try to find), it seems that you should NOT use the adapters as people have fried various components using them. Just plug the 20 pin right into the 24 pin "slot" all the way to ONE SIDE. Not in the middle. There are photos on various motherboard sites(MSI) on what this should look like.
 
just plug the 20pin straight in? and not in the middle? hmm.. i would need a pic of that.. thanks for the info.
 
It may or may not work reliably. Depends on memory quantity and speed and on graphics card power requirements.

My system is Epox 9NPA+ Ultra, AMD Athlon 64 3000+, 5x512 GEIL Value RAM, Sapphire Radeon x800gto (no separate PCIe power connector); everthing at stock speeds (no overclocking).

I attempted to use a 20-pin PSU (Antec TruePower 430), but I had problems when using 2x512MB memory DIMMs in Dual Channnel configuration (no problems if using one DIMM module only). The computer would occasionaly spontaineously reboot and then fail to POST with code C3 (copying BIOS to RAM). Memtest86+ 1.55 was failing in tests 6 and 8.

Yesterday I replaced it with Tagan TG420-U01 and the computer has been stable since. It is too soon to judge, but this may solve the problem. I will post updates.

The problem is that the 20-pin connector has only one 12V wire, which is used to supply PCIe graphics card and may be used for other components (CPU is powered by separate 4 pin connector with two yellow and two black wires). This may cause too large voltage drops when the power draw suddenly increases. 24-pin-equipped PSU has two 12V wires (all the way from the PSU to the connector) which gives less voltage drop and increases reliability.
 
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