PSU ......Modular or not ?

Ace Modder said:
OCZ are releasing some new PSU's soon.
850W and 1000W in both modular and none modular.
I will put them up tomorrow on Pre-Order on the website :)
Click to expand...

just seen them, right; lets take a really good look

OCZ Z-Series 850w Modular...now that looks very nice and it's supposed to be top quality only, over 90% efficient and 940W peak, ....but maybe a bit too expensive at 130 quid..the Corsair 850M is almost 20 quid cheaper

this is going to be a very hard decision to make, i just cant make my mind up:D
 
Last edited:
i go non modular as the resistance but some same that things have to work harder like fans as there isnt as good airflow through the case with a non modular if you dont put the cbles out the way properly so it works out the same in the end
 
Russu_cs16 said:
ok now im really confused:confused::confused:
Click to expand...

DONT BE :cool:.........right you, get the Corsair 750 modular...its only 99 quid and that's excellent :D:D

for me it's different, because my pc spec is higher and might be higher still by next august, because i might go crazy at the last minute:D...so i've got to anticipate this right now and choose something more powerful than i need

so i might go for this OCZ 850M or the corsair 850 M....it just depends on how much money i have next month...of these two; i have no worries that either will be perfect for me...FACT!

PSU first.....then the LIAN case... then the CPU.....then SATA....then BLU-RAY.....then nothing till next july. :cool:

save all the money and buy when everything is cheaper next year?..........yes, but i'm bored and i want to start fooling around with a new build strait away...like all you lot, i want to mod, start my own modding thread etc........sod waiting another year:p
 
Last edited:
My thought was always non-modular PSU's...

Yes you might have some spare connections, but its not hard to neatly tuck them away...

There are plenty of articles online to read about the reduced efficiency as a result of these modular connections thus increasing heat and power consumption.
 
i wont be able to hide the excess wiring easily on mine, because i'm going to rebuild the interior to be more open plan and simplistic.... it'll be basically an empty case, with the fans/SATA/BLU-RAY mounted on clear perspex...probably



basically i'll be removing the existing fan mounts/sata/hard drive and replacing them with perspex, but in the same position as they are now, the top left hand side will all be removed
 
Last edited:
DireEmblem said:
My thought was always non-modular PSU's...

Yes you might have some spare connections, but its not hard to neatly tuck them away...

There are plenty of articles online to read about the reduced efficiency as a result of these modular connections thus increasing heat and power consumption.
Click to expand...

could you show us some? some of the worlds most efficiant psu's are modular - the corsair 750hx for example, certified 90% efficiant at 50% load achieving an 80+ gold cert : http://www.80plus.org/manu/psu/psu_reports/CORSAIR_CMPSU-750HX_ECOS 1463_750W_Report.pdf

the drop in voltage over a modular connection is miniscule, i cant see why that would make any real difference at all.
 
Last edited:
james.miller said:
could you show us some? some of the worlds most efficient psu's are modular
Click to expand...

ok for those who cant google something like "modular psu less efficient", top result(toms hardware) gives an article (2009) that quotes:-

Despite modular power supplies being a hot product, don't be quick to grab the up-take. The companies we spoke to told us that modular power supplies are less efficient than those that have their cables hard-wired. The reason being that the extra connection you make, adds resistance, and hence, increases heat and reduces efficiency.

Enermax, Seasonic, and Corsair all told us that if you're looking to maximize efficiency, go for a non-modular PSU.
Click to expand...

and wiki

While modular cabling can help reduce case clutter, they have often been criticized for creating electrical resistance. Some third party websites that do power supply testing have confirmed that the quality of the connector, the age of the connector, the number of times it was inserted/removed, and various other variables such as dust can all raise resistance. However, the amount of this resistance in a good connector is small compared to the resistance generated by the length of the wire itself
Click to expand...

So yes I am not saying it is an absolute fact, it is subject to debate depending on various factors....

P.s I corrected your spelling:D
 
you are bound to loose efficiency and create resistance; by using connectors, rather than a soldered connection...this is a fact....but you might not loose that much :cool:

even with a soldered connection you have to be careful too...i.e you should always ``tin`` the ends of bare wires first, before you solder onto a circuit board etc.
 
Leave the spelling out of it, it doesnt make for a compelling argument if you have to resort to correcting spelling mistakes.

Like i said, some of the most efficient psu's IN THE WORLD are modular, and from your own quote the added resistance is many times smaller than the cable itself, which would be the same if it were modular or not:
However, the amount of this resistance in a good connector is small compared to the resistance generated by the length of the wire itself
Click to expand...

In other words no, it may very well be real but the difference is so SO small. How about showing us what difference it actually makes, rather than regurgitating what toms have said?

P.S: your punctuation is as bad as my spelling;)

here's a nice read:

http://www.motherboards.org/articles/guides/1488_11.html

Someone once said that a modular connector's pins have as much resistance as two feet of wire. I can't recall where that came from, but I think our five subjects have shown us that there's actually as much as four times as much voltage lost in a mere 18 inches of cable than there is in a modular connector. And when thinking about a loss in voltage in a modular connector, one shouldn't look just at the fact that a power supply has a modular connector, but perhaps how that modular connector is made.

The power supply that showed the most drop in voltage at the modular connector was the Corsair. I'm not really sure why this was since the connector was a one to one with a standard 6-pin PCI-e type connector. I could understand seeing this kind of drop with the other modular connectors on the Corsair because relatively small pins are used in the five pin connectors that plug into the power supply housing. Below is a close up picture of one of the Corsair modular peripheral power connectors.


Regardless of why there was this drop when the Corsair was under load, one has to keep in mind that this drop was only .03V even when there was an 11A load applied to a single connector. That's only a 0.25% drop in voltage during a very exaggerated static load.
Click to expand...

comments then?
 
Last edited:
my spelling is dreadful too... who cares! :cool:

most top PSU manufactures sell both.........you'd probably loose 1% efficiency, that's nothing... dont forget that that these 750W PSU's will handle a GTX 295 easily.....let alone an 850W.

the only problem any of us will ever have.... is if we buy (and none of us ever will)...........a crappy 50 quid PSU, but these top end PSU's are fine...all of them.
 
Last edited:
hey i got a real big question..


i am thinking to get a OCZ ModXstream 700w but stomped on a query...

i will have

Antec 902 with 4 case fans
corei7 with stock fan
4980 XT
Asus p6t
partiot viper
DVd drive
HDD drive

will there be enough cables for it all?

what if not...it's goign to be a pain in the *** to get a cable....

EDIT What type of cable does the 902 have for fans?
 
Last edited:
You will have more than enough connectors for the setup, I think they are molex, but don't quote me on that :)
 
The issue I take with them isn't over efficiency, its needlessly introducing another point of failure. If it all connects together well, it's not going to heat up significantly and all will be well. If you get something stuck in the connection, dust for example, the resistance increases significantly and it'll get hot. Or if the manufacturing process is slightly off, and the two don't mate well, the join will be higher resistance and get hot.

Modular cables over captive is form over function in my eyes. It's nice to be able to remove cables you're not using, but it just doesn't matter if you can't. So added risk at cosmetic gain, no deal.
 
Russu_cs16 said:
hey i got a real big question..


i am thinking to get a OCZ ModXstream 700w but stomped on a query...

i will have

Antec 902 with 4 case fans
corei7 with stock fan
4980 XT
Asus p6t
partiot viper
DVd drive
HDD drive

will there be enough cables for it all?

what if not...it's goign to be a pain in the *** to get a cable....

EDIT What type of cable does the 902 have for fans?
Click to expand...

yes........you'll have a spare graphics card connection and HDD drive connections too...and a few others as well
 
Last edited:
You must log in or register to reply here.
Back
Top Bottom