4pin on ATX12V 2.0

Vdubchaos

Lifer
Nov 11, 2009
10,408
10
0
My bro in law just got the following board:
ASUS|M4A89GTD PRO/USB3 RT

He has an older model Antec 470 NeoPower (Modular) with only 4 pin connector. He did some research and found out that 4pin will work on 8 pin MB connection......but when he plugged in the wire into the wall, one of the transistors on the MB caught on fire/burned up. I still don't understand how MB would get the power without pressing the power button....kind sounds like Case wires weren't plugged in right, or board was defected.

I've been doing some research and simply told him to get a new PS with ATX12V support, but it seems like it's a hit or miss. I read the stickies and did some searching, looks like some MBs can only run on 4pin and some need 8pin?

PS. He will be running AMD 1090T 6 core

Can he use 4 pin only?

Is there a connector he can buy to convert it to 8 pin?

Or get new PS?

Any comments would be appreciated.

TIA
 
Last edited:

VirtualLarry

No Lifer
Aug 25, 2001
56,587
10,225
126
If you are running that mobo, it takes an 8-pin, and if you are running a 1090T then you should definitely get a PSU that has an 8-pin. 4-pin probably doesn't supply enough current for the beefy hex-core CPUs. In fact, I wouldn't even recommend a 4-pin for quad-cores, unless they are the 95W TDP Athlon II X4 chips, and then not even overclocked.
 

Vdubchaos

Lifer
Nov 11, 2009
10,408
10
0
If you are running that mobo, it takes an 8-pin, and if you are running a 1090T then you should definitely get a PSU that has an 8-pin. 4-pin probably doesn't supply enough current for the beefy hex-core CPUs. In fact, I wouldn't even recommend a 4-pin for quad-cores, unless they are the 95W TDP Athlon II X4 chips, and then not even overclocked.

That's what I was thinking.

He must've had a defective board anyways, no clue why it would start burning up like that without even putting on the power.

I doubt 4 pin only (plugged in) would cause that...
 

fffblackmage

Platinum Member
Dec 28, 2007
2,548
0
76
Your bro-in-law should probably contact the manufacturers of the mobo and PSU. Something going up in flames is really bad.