Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




10 posts

Wannabe Geek


Topic # 54716 19-Dec-2009 10:41
Send private message

Hi,
 I am a complete novice & i'm building a PC from scratch...

MOTHERBOARD: Gigabyte 6vtx
PROCESSER: Pentium III-S 1.4GHz, 1.45v, 133FSB, Socket 370, SL6BY, Tualatin
RAM: 512mb SDRAM pc133 (x3)
SOUND CARD: CT4830 Sound Blaster Live!
TV TUNER CARD: PCI Slot (unknowen brand yet, still coming in the mail)
GRAPHICS CARD: Winfast GeForce Ti4600 A250 Ultra TD
PCI USB2 (x4+1)
IDE 80GB (2x40GB) HDD
DVD-RAM & CD-ROM
FDD
KEYBOARD & MOUSE
(all this for starters)

*My question is, Can I run all this on a std 150watt PSU or will I need 300watts?
If I use one 150W PSU to run my motherboard & another 150W PSU to run my HDD's & FDD dose that give me 300watts or is it the motherboard thats going to need one 300w PSU?
Thanks,
 Daniel.

Create new topic

xpd

8295 posts

Uber Geek
+1 received by user: 1090

Mod Emeritus
Trusted
Subscriber

  Reply # 284016 19-Dec-2009 14:39
Send private message

Get a 300W minimum single PSU - using 2 150's will work but requires you to jump the 2nd PSU to get it powering up and have room for it and a 2ndary power cable. (or make a switch for it)




XPD^ / @DemiseNZ / Gavin

 

Internet : Voyager (VDSL)         Mobile : 2Degrees

 

Data Backed up by Backblaze

 

xpd.co.nz


25581 posts

Uber Geek
+1 received by user: 5360

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 284017 19-Dec-2009 14:43
Send private message

With 3 cards, 2 HDD and the 2 optical drives you'll definately need to go with a 300W supply.

Having two power supplies is a strange idea and very impractical.



 
 
 
 




10 posts

Wannabe Geek


  Reply # 284059 19-Dec-2009 18:14
Send private message

sbiddle: With 3 cards, 2 HDD and the 2 optical drives you'll definately need to go with a 300W supply.

Having two power supplies is a strange idea and very impractical.





I was just hoping I wouldn't have to fork out any more money to get this thing running. I already have 2x150w PSU's but i'll have to buy a 300w one if I can't bridge them & I thought two 150w's might run cooler, but hay, if it's not possible then its not possible.

Thanks anyway.

25581 posts

Uber Geek
+1 received by user: 5360

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 284064 19-Dec-2009 19:39
Send private message

How did you plan to switch the 2nd power supply on? You'd have to rewire it for it to switch on - a normal PSU won't power on until the on/off button hooked to the motherboard is turned on. It will not normally provide +12v until then but some PSU's will provide +5v without being turned on.

If you didn't want to run so much a 150W supply would be plenty just for a mobo and HDD, but dual optical drives, dual HDD's and 3 PC cards all suck a lot of power.



10 posts

Wannabe Geek


  Reply # 284108 19-Dec-2009 23:26
Send private message

sbiddle: How did you plan to switch the 2nd power supply on? You'd have to rewire it for it to switch on - a normal PSU won't power on until the on/off button hooked to the motherboard is turned on. It will not normally provide +12v until then but some PSU's will provide +5v without being turned on.

If you didn't want to run so much a 150W supply would be plenty just for a mobo and HDD, but dual optical drives, dual HDD's and 3 PC cards all suck a lot of power.


I have no problem with wireing. I just wanted to know if I would be doubleing the amps & volts if I did :) Thought I might be able to run HDD's FDD's & DVD's off one & the mobo off the other.
What i'm trying to find out is why I need so much power, basicly my question should have been how much power dose the mobo drain. I have decided to run the mobo off a 300w+ PSU & everything else off a 150w PSU.
Thanks mate, everyone in the chat room has been a great help to.
 Daniel.



10 posts

Wannabe Geek


  Reply # 284114 19-Dec-2009 23:58
Send private message

************************************************************************************
----------------UPDATE--------------------------------------------------------------------------------------------

************************************************************************************

I have now brought a brand new 420w ATX PSU to run the mobo & i'l use a 150w PSU for the HDD's, FDD's, DVD-RAM's, LED's, etc...
Thanks for all your responces,
Daniel.

25581 posts

Uber Geek
+1 received by user: 5360

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 284131 20-Dec-2009 08:31
Send private message

A 420W power supply would be sufficnent for everything, why do you still want to run 2 different power supplies? I'm assuming the 2nd power supply would not be mounted inside the case? This should not really be done under NZ electrical regulations - they are not designed to be an external power supply.

One thing you also haven't addressed is how you plan to actually make the 2nd power supply work. Is this a model that will provide +12v and +5v without the motherboard power connector connected or are you going to hack it so it will work?



2260 posts

Uber Geek

Trusted

  Reply # 284157 20-Dec-2009 11:19
Send private message

Not too sure why you still want to run 2 PSUs. You'll have to use pin 4(green and any of the black wires and wire them upto a switch). but it means you won't be able to put any discs to sleep unless you had a physical switch wired to each one.

http://www.burningissues.net/how_to/power/psu.htm - simple switch method

http://www.speedy3d.com/articles/case_mod_p3/01.shtml - relay method


Imo...it's more than likely you'll end up screwing up one or both PSUs, leaving yourself to fork out money for another one. stick to one, the HDDs, LEDs, DVDs, Cold cathods and watercooling or whatever you want to throw at it all require 12v DC. Which on a 420w PSU you should have at least 1-2 rails with plenty of Amps




I have moved across the ditch.  Now residing in Melbourne as a VOIP/Video Technical Trainer/Engineer. 

Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Netatmo launches smart home products in New Zealand
Posted 20-Nov-2017 20:06


Huawei Mate 10: Punchy, long battery life, artificial intelligence
Posted 20-Nov-2017 16:30


Propel launch Disney Star Wars Laser Battle Drones
Posted 19-Nov-2017 21:26


UFB killer app: Speed
Posted 17-Nov-2017 17:01


The case for RSS — MacSparky
Posted 13-Nov-2017 14:35


WordPress and Indieweb: Take control of your online presence — 6:30 GridAKL Nov 30
Posted 11-Nov-2017 13:43


Chorus reveals technology upgrade for schools, students
Posted 10-Nov-2017 10:28


Vodafone says Internet of Things (IoT) crucial for digital transformation
Posted 10-Nov-2017 10:06


Police and Facebook launch AMBER Alerts system in NZ
Posted 9-Nov-2017 10:49


Amazon debuts Fire TV Stick Basic Edition in over 100 new countries
Posted 8-Nov-2017 05:34


Vodafone VoIP transition to start this month
Posted 7-Nov-2017 12:33


Spark enhances IoT network capability
Posted 7-Nov-2017 11:33


Vocus NZ sale and broadband competition
Posted 6-Nov-2017 14:36


Hawaiki reaches key milestone in landmark deep-sea fibre project
Posted 4-Nov-2017 13:53


Countdown launches new proximity online shopping app
Posted 4-Nov-2017 13:50



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.