Originally Posted by Princess Garnet
That is indeed strange. I didn't think Pentium 4 boards without that connection were around. My ASRock, which is even more budget than yours appears to be (though ASRock by nature is budget all around), an ASRock P4i65G
, even has that 4 pin +12V connector for the CPU.
In any case, if the motherboard lacks it, the PSU is still fine. It doesn't have to be plugged in if the motherboard doesn't need it.
However, that raises to concern the previous PSU you were running though. If it didn't have that connector, it was likely an ATX 1.x design, and ATX before v2.x didn't prioritize the +12V rail, of which modern PCs (Pentium 4 and later) did more and more. SO, I'd say it's good you're not running it off of whatever you were before. Even many PSUs with
that 4 pin connector are literally just ATX 1.3v PSUs with the connector added on, and not true ATX 2.x PSUs, so if yours lacked it entirely, I don't even want to think about it.
As tpi said, yours is a bit better than mine, the chipset being 865 and all
My old PSU DID have the 4-pin connector and, if I recall correctly, the label indeed indicated that it was ATX 2.0. However, it was a 6-year-old 300W single-rail codegen with, iirc, 16A on the 12V rail
When the PC started choking under load due to, most likely, inadequate power, I finally realized that it was high time I replaced the old grandpa
But maaaan, getting an 875P board these days... 865 was quite common and I STILL have problems finding any on my country's craigslist-like sites. I'd REALLY like to avoid ebay, cause the shipping costs are ridiculous >.>
EDIT: I tried measuring my vCore with a multimeter. Since I didn't know any actual measuring points on the top side of the mobo, I took a gamble and... that's right, measured the voltage on the CPU pins on the back side
Since I'm running caseless, the pins were comparatively easy to reach, but wires still got in the way, so I had to work while manually supporting the mobo
Good thing there was a conveniently placed plastic thingy under which I could place my thumb
Still, it was pretty nerve-wracking, since (correct me if I'm wrong) had I bridged even 2 of the pins, the whole thing could have gone bonkers. You can see what I mean by looking at the pic, that's what the operation conditions looked like
Oh, and ground was plugged into a molex.
So, anyway, I got readings on various pins and other spots and after filtering out the BS, things look like this:
vCore - idle: 1,63-64V
vCore - load (IBT, maximum stress): 1,60-61V
Thus I lol at the software readings. HWmonitor readings jump all over the place - anywhere from 1,55 to 1,65 while idle, 1,48-1,62 under load.
Don't mind the inaccuracy, though: Intel ARK lists the "VID Voltage Range" for this CPU at 1.25V-1.4V...
All I can say
scream is WOWWTH!!! Edited by Hyoketsu - 3/28/11 at 11:29am