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Is Enermax 365 watts enough for overcloking Athlon 64?

M

mrscintilla

Senior member
have an old (3-yr old) Enermax EG365P-VE power supply. Is it going to be enough (meaning overclocking friendly) for the following setup I am building?

2 WD 120GB ATA133 hard drive
1 Maxtor 300GB SATA II hard drive
1 BenQ 16x DVD-RW
1 Athlon 64 3500+ (wanna overclock this)
1 Nforce4 motherboard
1 6600GT graphics card
2x Crucial Ballistix PC3200 512MB (wanna overclock this)

That's it. I read somewhere that total 500W would be ideal. But given how it's distributed, I don't really trust that general statement.
 
I think it's barely enough to power your system unOC'ed. Might want to add a better PSU as well.

Its not so much the total wattage, but the ampherage on the 12v rail. 19A should be the minimum. You can find some dual 12V rail PSUs as well, 20A on one, 18A on the other.
 
You are fine!!! don't listen to others as they don't have the same PSU

I am running the followin on Enermax 365 and have room to spare:

A64 754 3000+ @ 2.3Ghz
DFI UT 250GB
2 x 512 Corsair XMS3200 @208
ATI 9800XT
1 Maxtor 160GB
1 Maxtor 40GB
1 WD 200GB
1 WD 120GB
1 52X CDRW
1 16X DVD+RW
1 80mm intake
1 120mm in the rear
1 PCI sound card
1 PCI USB 2.0 card
1 PCI Si680 ATAraid card

prime95 stable while BT 20 downloads 🙂. play HL2 all day long with no problem
Enermax has great 12V rail so no worries.
 
Originally posted by: Chesebert
You are fine!!! don't listen to others as they don't have the same PSU

I am running the followin on Enermax 365 and have room to spare:

A64 754 3000+ @ 2.3Ghz
DFI UT 250GB
2 x 512 Corsair XMS3200 @208
ATI 9800XT
1 Maxtor 160GB
1 Maxtor 40GB
1 WD 200GB
1 WD 120GB
1 52X CDRW
1 16X DVD+RW
1 80mm intake
1 120mm in the rear
1 PCI sound card
1 PCI USB 2.0 card
1 PCI Si680 ATAraid card

prime95 stable while BT 20 downloads 🙂. play HL2 all day long with no problem
Enermax has great 12V rail so no worries.
Click to expand...


Ditto you'll be fine,I run the same psu on my system (see sig)
 
Where did this 19A threshold come from???



Originally posted by: Bateluer
I think it's barely enough to power your system unOC'ed. Might want to add a better PSU as well.

Its not so much the total wattage, but the ampherage on the 12v rail. 19A should be the minimum. You can find some dual 12V rail PSUs as well, 20A on one, 18A on the other.
Click to expand...

 
Originally posted by: mrscintilla
Where did this 19A threshold come from???



Originally posted by: Bateluer
I think it's barely enough to power your system unOC'ed. Might want to add a better PSU as well.

Its not so much the total wattage, but the ampherage on the 12v rail. 19A should be the minimum. You can find some dual 12V rail PSUs as well, 20A on one, 18A on the other.
Click to expand...
Click to expand...

I don't think 19A is the minimum. I was running the system in my sig for a while with a Raidmax PSU with 13A on the 12v line.
 
The labelled spec on my eg365p-ve says the 12v line is rated at 17A. Enermax lists the max on the line as 26A.
Which one are people talking about? The max surely makes me feel better about using it in an overclocked machine.


Originally posted by: Budman
Originally posted by: Chesebert
You are fine!!! don't listen to others as they don't have the same PSU

I am running the followin on Enermax 365 and have room to spare:

A64 754 3000+ @ 2.3Ghz
DFI UT 250GB
2 x 512 Corsair XMS3200 @208
ATI 9800XT
1 Maxtor 160GB
1 Maxtor 40GB
1 WD 200GB
1 WD 120GB
1 52X CDRW
1 16X DVD+RW
1 80mm intake
1 120mm in the rear
1 PCI sound card
1 PCI USB 2.0 card
1 PCI Si680 ATAraid card

prime95 stable while BT 20 downloads 🙂. play HL2 all day long with no problem
Enermax has great 12V rail so no worries.
Click to expand...


Ditto you'll be fine,I run the same psu on my system (see sig)
Click to expand...

 
Thanks. I have this PSU as well. Its a sweet PSU, glad to hear it will hold up with the new chips/mobos/vid cards.
 
Originally posted by: mrscintilla
The labelled spec on my eg365p-ve says the 12v line is rated at 17A. Enermax lists the max on the line as 26A.
Which one are people talking about? The max surely makes me feel better about using it in an overclocked machine.
Click to expand...

Newer Enermax EG-365P-VE's are rated for 26A on the +12V rail. You've got an older Enermax 350W PSU (I had one of those). Those are still rock solid PSU's but not quite as good for overclocking as the newer ones (they started with 26A +12V rail rated PSU's about two years ago)..

You should be fine with your PSU since Enermax is one of the best in the business, but if you have any problems or hit a low o/c wall with the Athlon64, you might want to consider upgrading your PSU. Even a new 350W Enermax PSU (the same model) would give you a nice boost on the 12V rail; a 460W (EG-465P-VE) would be even better. The 350W should be enough though.
 
that makes a lot sense now. Enermax should have named these new psus with different model #s. I will think about shelling out $77 for a new eg465p-ve, which is rated at 33A on the 12V rail. that's a lot of power. and it's much cheaper compared to OCZ's powerstream models.


Is there an easy way like a version # to distinguish the new enermax from the old? Lots of websites don't list the Amphere rating on the rails. I don't want to be stuck with an older model...
 
Some psus that have 2 seperte rails but have lower amphere per rail. e.g., enermax's noisetaker series, having 2 18A +12V rails. So, are they less effective than eg465p-ve who has one 33A +12v rail? there is only a single power connector to the motherboard; so how does 2 rails each with lower number be better than one rail with a higher number?
 
Originally posted by: mrscintilla
Some psus that have 2 seperte rails but have lower amphere per rail. e.g., enermax's noisetaker series, having 2 18A +12V rails. So, are they less effective than eg465p-ve who has one 33A +12v rail? there is only a single power connector to the motherboard; so how does 2 rails each with lower number be better than one rail with a higher number?
Click to expand...

The EG-465 is a great PSU (I run one myself and built another machine with one). Very solid PSU.

The noisetaker (475W max) is very similar to the 460W Enermax. Supposedly the Noisetaker can be made quieter, but I think they're very similar in noise output as well.

More voltage rails aren't automatically better; add up the +12V rails on the Noisetaker and you'll se it's very similarly rated to the 460W Enermax.

I'd go for the Noisetaker if it's similar in price (due to it being a slightly newer design and getting very good reviews) but if it's more than a little bit more expensive, just get the 460W; the difference between the two PSU's is marginal.
 
my eg-365VE rates 12A on the 12V rail. Could this be why my computer refuses to post? The A8V board keeps saying: System failed CPU Test, or No CPU found. could this be the reason?
 
Originally posted by: razorweb
my eg-365VE rates 12A on the 12V rail. Could this be why my computer refuses to post? The A8V board keeps saying: System failed CPU Test, or No CPU found. could this be the reason?
Click to expand...

Probably. Check the voltage on your rails - they should be within +/- 5% of stated. You could also try removing extraneous devices and cards to lower the power draw and see if your computer will boot.

There's a pretty sizeable power draw at startup from fans, HDDs, etc., so you're probably hitting the peak of your PSU.

12A is too low by today's standards. You'd be well advised to get something with at least 20A on the 12V rail.


 
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