Enermax EGP465P-VE, W by part, and upgrade 4 main components (8800GTX, 6600...)

  • Thread starter Thread starter bent
  • Start date Start date
B

bent

could go directly to 2 Questions at the bottom (warning)

I am wondering is my psu has got enough juice to upgrade to a future
mobo/cpu/DDR2ram/vid card combo upgrade. Currently it powers an Asus
P4C800E-D with a Intel P4 2.6C at 20% OC @3.12GHz, 2x256MB OCZ DDR1
@240/480/960, and MSI FX5900XT-VTD128.

btw this mobo and ram I have now are both capable of running 288/575/1150
and it was proven time and time again 3 years ago.. If I had taken my time
and understood I'd have chosen a better cpu to do the same, such as any
number of C series 2.4GHz batches, and run it at that (40% OC). Thats why
I bought the mobo and ram. However I can only do 20% completely stable with
the 2.6C batch I mistakenly thought was a newer upper GHz in the C series
capable of what the 2.4C (@1.4=3.36GHz) could. I don't know what the EE of
the C could do, but it don't matter. I have a Zalman 7000Cu cpu cooler, and
it would be great if I could stick a newer (or newest/best) cpu in it with
an adapter, and more of the same ram to run a little better than 3.12GHz.
The problem is it isn't dual core or PCI-E, so I could only get a 7800GS
256. Nothing better is made for AGP. It has the same (stock/stock) gpu
clock as my current FX5900XT-V128, and a little better ram

The psu I have was bought after some research about the rails, and stable
solid power needed for my planned 40% OC.

My psu is an Enermax EGP465P-VE S^2 FC^2 whisper 465W. This is from MY
printed manual. I could check info on the web if its wrong/impossible.
+3.3 35A .3
+5 35A .3
+12 33A 1.5
-5 1A 0
-12 1A 0
+5vsb 2.2A .1

I have 2 Questions:

Q1)
How do you multiply these numbers together to get 465W? VA=W. Seriously, I
get 680.5W and 714.5W, whether or not I ignore the sign , and a minimum
686.5W if I exclude the - and vsb ( whatever that is), altogether.

Q2)
I am not exactly sure what I would want yet, but after a first read of a
core 2 duo vs. dual core google, don't ask me why, I know nothing, could my
current Enermax 465W psu work with say:

8800GTX 768 (a single thank you) these need 2 molex - I got 1 marked "extra"
Asus mobo (whats another several hun to them)
6600 cpu (don't know 6400, 6200, not $1200, maybe 2 of the former)
2x 1GB ram (or 4x2GB), (does this matter much for Watts)
 
bent said:
could go directly to 2 Questions at the bottom (warning)
Click to expand...
I am wondering is my psu has got enough juice to upgrade to a future mobo/cpu/DDR2ram/vid card
combo upgrade. Currently it powers an Asus P4C800E-D with a Intel P4 2.6C at 20% OC @3.12GHz,
2x256MB OCZ DDR1 @240/480/960, and MSI FX5900XT-VTD128.
Click to expand...
btw this mobo and ram I have now are both capable of running 288/575/1150 and it was proven time
and time again 3 years ago.. If I had taken my time and understood I'd have chosen a better cpu
to do the same, such as any number of C series 2.4GHz batches, and run it at that (40% OC). Thats
why I bought the mobo and ram. However I can only do 20% completely stable with the 2.6C batch I
mistakenly thought was a newer upper GHz in the C series capable of what the 2.4C (@1.4=3.36GHz)
could. I don't know what the EE of the C could do, but it don't matter. I have a Zalman 7000Cu
cpu cooler, and it would be great if I could stick a newer (or newest/best) cpu in it with an
adapter, and more of the same ram to run a little better than 3.12GHz. The problem is it isn't
dual core or PCI-E, so I could only get a 7800GS 256. Nothing better is made for AGP. It has the
same (stock/stock) gpu clock as my current FX5900XT-V128, and a little better ram
Click to expand...
The psu I have was bought after some research about the rails, and stable solid power needed for
my planned 40% OC.

My psu is an Enermax EGP465P-VE S^2 FC^2 whisper 465W. This is from MY printed manual. I could
check info on the web if its wrong/impossible.
+3.3 35A .3
+5 35A .3
+12 33A 1.5
-5 1A 0
-12 1A 0
+5vsb 2.2A .1
Click to expand...
I have 2 Questions:
Click to expand...
Q1)
How do you multiply these numbers together to get 465W? VA=W.
Click to expand...

Yes, multiply the V without the sign by the A and get the W and sum those.
Seriously, I get 680.5W and 714.5W, whether or not I ignore the sign ,
Click to expand...

That is saying that you cant draw those max currents on all those rails simultaneously.
and a minimum 686.5W if I exclude the - and vsb ( whatever that is),
Click to expand...

5VSB is 5V Stand By, what is supplied to the motherboard when its turned off.
altogether.
Click to expand...

You have to drop the sign on the negative rails.
Q2)
I am not exactly sure what I would want yet, but after a first read of a core 2 duo vs. dual core
google, don't ask me why, I know nothing, could my current Enermax 465W psu work with say:
Click to expand...
8800GTX 768 (a single thank you) these need 2 molex - I got 1 marked "extra"
Asus mobo (whats another several hun to them)
6600 cpu (don't know 6400, 6200, not $1200, maybe 2 of the former)
2x 1GB ram (or 4x2GB), (does this matter much for Watts)
Click to expand...

Wouldnt it make more sense with so much being upgraded just to get a
new power supply as well and keep the old system as a working system ?
 
bent said:
could go directly to 2 Questions at the bottom (warning)

I am wondering is my psu has got enough juice to upgrade to a future
mobo/cpu/DDR2ram/vid card combo upgrade. Currently it powers an Asus
P4C800E-D with a Intel P4 2.6C at 20% OC @3.12GHz, 2x256MB OCZ DDR1
@240/480/960, and MSI FX5900XT-VTD128.

btw this mobo and ram I have now are both capable of running 288/575/1150
and it was proven time and time again 3 years ago.. If I had taken my time
and understood I'd have chosen a better cpu to do the same, such as any
number of C series 2.4GHz batches, and run it at that (40% OC). Thats why
I bought the mobo and ram. However I can only do 20% completely stable with
the 2.6C batch I mistakenly thought was a newer upper GHz in the C series
capable of what the 2.4C (@1.4=3.36GHz) could. I don't know what the EE of
the C could do, but it don't matter. I have a Zalman 7000Cu cpu cooler, and
it would be great if I could stick a newer (or newest/best) cpu in it with
an adapter, and more of the same ram to run a little better than 3.12GHz.
The problem is it isn't dual core or PCI-E, so I could only get a 7800GS
256. Nothing better is made for AGP. It has the same (stock/stock) gpu
clock as my current FX5900XT-V128, and a little better ram

The psu I have was bought after some research about the rails, and stable
solid power needed for my planned 40% OC.

My psu is an Enermax EGP465P-VE S^2 FC^2 whisper 465W. This is from MY
printed manual. I could check info on the web if its wrong/impossible.
+3.3 35A .3
+5 35A .3
+12 33A 1.5
-5 1A 0
-12 1A 0
+5vsb 2.2A .1

I have 2 Questions:

Q1)
How do you multiply these numbers together to get 465W? VA=W. Seriously, I
get 680.5W and 714.5W, whether or not I ignore the sign , and a minimum
686.5W if I exclude the - and vsb ( whatever that is), altogether.

Q2)
I am not exactly sure what I would want yet, but after a first read of a
core 2 duo vs. dual core google, don't ask me why, I know nothing, could my
current Enermax 465W psu work with say:

8800GTX 768 (a single thank you) these need 2 molex - I got 1 marked "extra"
Asus mobo (whats another several hun to them)
6600 cpu (don't know 6400, 6200, not $1200, maybe 2 of the former)
2x 1GB ram (or 4x2GB), (does this matter much for Watts)
Click to expand...

"How do you multiply these numbers together". You don't :-) The entire power
supply has a limit, likely thermal in nature. The limit is 465W. If you
don't hit the thermal limit for the entire PSU, then the thermal limits
for individual outputs are the limiting factor. That is why, if you simply
added them all up, they'd be some high number like 700 watts. But if they
all "went to max" at the same time, the PSU would overheat. Thus, there
are a whole bunch of limits stated on the label on the side of the supply.
An individual output can go to its maximum value, without the power
supply overheating. But not all outputs can go to the maximum value at
the same time.

Usually, in a PC, only one rail is really heavily loaded. The other rails
are loaded much less than their max. That fact, is how you could get closer
to drawing the 465W.

As for an upgrade plan, consisting of an E6600 processor and a 8800GTX...
The processor is 65W, and the graphics are 145W. Both from 12V rails. The
processor draws from the rail called 12V2 (the square 2x2 connector). The
graphics would draw from 12V1, if the supply was a dual rail 12V supply.
Your supply has a single rail, so both loads would be on that single rail
The 65W processor draws power through Vcore, and the Vcore conversion
circuitry is about 90% efficient. That means a 65W processor needs about
72.2W at the 2x2 connector. 72.2W/12V = 6 amps. For the video card,
145W/12V = 12.1 amps. The total so far is roughly 18 amps. Add another
2.5A for basic storage devices and fans, and the number is closer to 15A.
Your 33A is plenty.

The hardest part of using your existing nice supply, will be connectors
and cables. The 8800GTX may have a bunch of PCI Express power connectors,
so you'll need some adapter cables, properly connected.

This 8800GTX comes with adapter cables as part of the bundle. You would
use the adapter cables, to convert two disk drive power cables, for use
with the 8800GTX. If it was my computer, I would try not to put disk
drives, on the same cables as the 8800GTX.

http://images10.newegg.com/NeweggImage/productimage/14-121-033-07.JPG

Paul
 
Paul said:
circuitry is about 90% efficient. That means a 65W processor needs about
72.2W at the 2x2 connector. 72.2W/12V = 6 amps. For the video card,
145W/12V = 12.1 amps. The total so far is roughly 18 amps. Add another
2.5A for basic storage devices and fans, and the number is closer to 15A.
Your 33A is plenty.
Click to expand...

Small correction.

18 + 2.5A is 20.5A. Still less than the 33A limit.

Paul
 
I feel better now I didn't screw the psu up too.

With the newer dual core or dual cpu or both or double half or whatever
cpu(s) these days, does the DDR2 ram have a greater duty of handling these
and any OC, that specifically my "old" guaranteed to run 266/533/1066 (but
could OC higher) didn't? I forgot to mention this besides the cpu(s)
adaptor matter, and the PCI-E matter, theres this matter. Can anyone clear
this up. a little knowledge is a dangerous thing.

When I bought this ram all reviews used the same mobo and cpu. I STILL do
not know what I missed out on in terms of performance due to the lost OC in
the rams headroom. Way up ther in GB/s.. And will not know. I had read
something about the extra increase in performance being minimal, but I don't
know if it applied to this matter specifically. For me to run a 2.4CGHz at
DDR560 would give me 3.36GHz, not far ahead of the 3.12GHz I get with the
2.6C I have. Its the thrill of the extra, on top of that, but the memory
does more too, stuff. How much is this in terms of performance? The
benefit of the ram OC, in terms of cpu =3.36-3.12=.24, but from th eram
only. How big? I can't convert from PC3200 to PC4500 in terms of the
numbers, I forget, but tell me HOW much is/was it? What value is in there
way up there? Is everything that outstanding? Please. I paid for it. Pity
me.
 
Small correction.

18 + 2.5A is 20.5A. Still less than the 33A limit.

Paul
Click to expand...


Keep in mind that Enermax typically rates for 70% duty at
25C. I think it'd handle the load but moreso from the
system not being at peak load continually rather than the
rating of the PSU.
 
what do you mean 70% 465W and its divisors is really *(100 or 90) / 70, or
vice versa? ie greater than or less than or exactly 465?

I know it has two fans and a built in thermistor dangling controlling them
when needed.

Did you see my lovely next post? and the one after attached to it?
 
the PC3200 is 3.2GB/s i think, and PC4200 I don't rmember, but its more an
exponential not a linear relationship, and 6.4GB/s or more, so the added
benefit.is potentially twice the value of the initial non-OC'd
PC3200/DDR400/FSB800. I can't remember what I read about there being little
performance difference, and why, but its like saying twice ain't no big
deal, am I right? I am trying to keep it in mind and translate what I know
to the next ram purchase. I know if my xyz can do it is a Q specific to a
particular hardware/mobo. This is more a theoretical approach to the
question.
 
what do you mean 70% 465W and its divisors is really *(100 or 90) / 70, or
vice versa? ie greater than or less than or exactly 465?
Click to expand...

You could consider it 465 * 0.7, but it would be more
appropriate to consider the current on the most loaded rail
of the system and derate that to compare to the average load
(or if under higher continual loads, THAT period's average
load), and derate further based on the temp of the PSU which
is something I leave to you to estimate as there's no way I
can produce a valid number for an unknown load in an unknown
chassis/cooling-subsystem, unknown room temp, etc.
I know it has two fans and a built in thermistor dangling controlling them
when needed.
Click to expand...

It's not a "bad" PSU per se, certainly worth trying on a
rebuild.
 
I think its probly b/c I don't really understand the whole pooter architecture, "When ram gives your cpu a boost, say 20% but what about the ram itself." I don't even know how many cpus physically are in todays computers, why. And I guess the 250/500/1000 MHz translates directly into GB/s in ram, just as as it would translate the cpu, which is just not generally thought of in GB/s.

It used to be when you OC you buy better ram, and the cpu got OC'd, and when the standard was 200/DDR400/FSB800 you bought according to the oc based on that, if that was your bus type in the cpu. I don't know if these OC %ages are connected the same way anymore, or locked. Maybe it is to be for all but the $1200 cpu out now.

So you buy a 200Mhzbuscpu (say a 2.4GHz)/DDR400ram/800Mhzmobo/ combo and find out it can oc 50%.to 3.6GHz. But the ram isn't DDR400 anymore. Its not PC3200 anymore. Its much "better"

I'm just tryint to figure out if reaching for the highest ram rate is usefull, or if it is indeed "very little better", as I have possibly read, for a jump from 240/480/960 to 287.5/575/1150. In which case 200/400/800 to 287.5/575/1150 at the same cpu GHz processor speed (regardless of how it go there) is a waste of time with little better - nothing to worry about. Don't spend any money on it - like upgrade or anything.
 
A 3 yr old good 2.4GHzC at 43.75% OC, with my mobo, with my ram
3.45GHz/FSB1150

my 3 yr. old average2.6GHzC at a stable 20% OC, with my mobo, with my ram
3.12GHz/FSB960

Can anyone fill in a current system today, or list of cpu/ram/mobo (optional
if easy) ? It could start with the cpu(s). I can't even name one with any
confidence:
 
Just so I know why at the same time it makes no difference, and is the sole
reason why I need to upgrase the piece of crap.
 
Back
Top