"AL" said:
I have connected a 2x2 connector that has a green cable. The connection
whic splits off from a 2x4 reads. "use this connection for a single CPU
system". By the way, the Intel mobo that I have supports the full 2x4
connection but the manual reads not to use the 2x4 for intel extreme
because the system will be unstable, yet when I call intel, they say to
use the 8 pin plug instead. I have no idea what to do anymore. I mean
I've tried two power supplies, two CPUs The same type) two
motherboards, two diff brands of ram, two different video cards, two
different fans. What's left for me to do? Please help if you can. I
appreciate it much
I would start by using one motherboard at a time here. There are
a ton of details to go into, and having to address the issues for
both motherboards at the same time, is a bit much.
P5AD2-E Deluxe supported CPUs - I'm assuming this is your proc...
"P4-3.46 GHz Extreme Ed. (1066 FSB, HT, revM0, LGA775)"
http://support.asus.com.tw/cpusuppo...1&name=P5AD2-E Deluxe&SLanguage=en-us&cache=1
The Intel D975XBX BadAxe motherboard supported CPU list does
not seem to be very comprehensive. After all, even a Celeron D
should run in there, if they put their minds to it. I don't
think I am seeing your processor listed here! This list is
for 90nm and 65nm processors, and no mention of 0.13u LGA775.
http://www.intel.com/design/motherbd/bx/bx_proc.htm
It would really help if you posted your SLxxx number or
order code for the processor (look on the box). At
least to double check what processor this is.
The reason I'm interested in a Celeron D, is if you cannot
borrow a processor to test your motherboards, a Cel D would
have made a dandy test processor. Newegg has a Cel D 326
you could use on the Asus motherboard, and it is $66 apiece.
Purchasing a test processor for the BadAxe, based on the Intel
list, would be cost prohibitive.
"Intel Celeron D 326 Prescott 533MHz FSB 256KB L2 Cache LGA 775"
http://www.newegg.com/Product/Product.asp?Item=N82E16819112207
There have been the odd problem with Antec Neo HE. I would use
whatever other power supply you have in the interim, just in
case this is HE related.
http://forums.silentpcreview.com/viewtopic.php?t=27863
The P5AD2-E Deluxe should be pretty straight forward. It has
a 24 pin power connector. Some supplies have a 20 pin section
and a 4 pin removable section. The 4 pin section has an extra
3.3V, 5V, 12V, and GND. The four wires will all be different
colors, so that should help you identify the four wire section.
The two parts clip together and insert into your 24 pin connector.
The P5AD2-E Deluxe has an ATX12V 2x2 connector. The pinout
would look like this, and if you had a 2x4 connector on a
supply, that split into two sections, one section could
provide this power.
GND 12V2
GND 12V2
The Intel BadAxe has a peculiar scheme. The manual claims
the 2x4 power connector is dual power 12V1/12V2, which
is the kind of thing you would profitably use on a dual
processor server board.
ftp://download.intel.com/design/motherbd/bx/D3611001US.pdf
The Intel connector would look like this:
GND 12V1
GND 12V1
GND 12V2
GND 12V2
The Intel motherboard looks like it has five phase power. I'm
just guessing here, but perhaps three phases run off one
circuit and two phases off the other ? I don't see a simple
way of combining 12V1 and 12V2 to power one processor, unless
the phases have been split into groups of some sort. If it
is split by phases somehow, if a user really wanted to use
a 2x2 power connector, I would want to make sure it goes
into the right holes. Molex family connectors are keyed by
their nylon connector shell shapes, so that should restrict
somewhat, what goes where. Since your NeoHE has the 12V1/12V2
style 2x4 connector, it should work fine. If there was going
to be an instability issue, I'd have expected it with a 2x2
connector and not a 2x4 as above.
The two pins on an ATX 12V 2x2 connector are good for 6 amps
apiece, or 12 amps total. At 12V, that is a total of 144W
input power. The Vcore converter wastes some power as heat,
leaving perhaps 129.6W for the processor TDP. I assume 90%
conversion efficiency when I do these calcs.
This Intel P4EE 3.46Ghz/FSB1066/2MB L2 0.13u rev M0 processor
has a TDP of 110 watts. Purely from the ATX12V connector
perspective, a 2x2 ATX12V connector should handle the current
OK. The issue would be exactly how the Intel Vcore circuit is
designed, and which phases run with only one 2x2 connector (if
you chose to do that with your other supply). In other
words, the ATX 12V 2x2 connector might not melt, but
maybe the Intel Vcore doesn't get Power_Good when running
from just one rail and not two. Since the Intel design is
unusual, I'll leave it to Intel Tech support to advise
you as to exactly what the hell they did.
http://processorfinder.intel.com/scripts/details.asp?sSpec=SL7RT&ProcFam=1026
The issue with posting could be the BIOS revision. I suppose
there are situations where it wouldn't beep the computer
speaker, if the BIOS cannot figure out the processor type.
Since the Intel BadAxe has such a short supported processor list,
I don't see an easy thing for you to buy as a second test
vehicle. If you do decide to buy a second (cheap) processor,
work with the two supported CPU lists, and try to pick something
which is on both lists. At least, if you want to continue
to experiment with both motherboards.
The Asus board appears to support your 3.46Ghz M0 out of the
box, so that should have worked. I would try P5AD2-E, your
3.46Ghz processor, and a supply other than the Antec NeoHE,
and see what happens. Even with no memory in the board, it
should give you the memory error beep pattern on the computer
case built-in speaker. If the computer speaker beeps, it
means the CPU is alive
Paul