Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > Do i need 8 pin ATX +12V connector

Do i need 8 pin ATX +12V connector

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Do i need 8 pin ATX +12V connector

Tom's Hardware: Over 1.4 million members in 6 different countries available to answer all your high-tech questions. Sign up now! Its free!
Ask the community Add a reply
Word :    Username :           
 
howardg   07-31-2009 at 10:30:15 AM

I have just build a new system around a Gigabyte GA-MA790FXT-UD5P 790FX with a AMD Phenom II X4 955 Black Edition RAM:4GB (2x2GB) Corsair XMS3 Dominator DDR Graphics: 512MB Sapphire HD 4670 Ultimate, PCI-E 2.0.

I retained the PSU from my old PC which is a Hiper HPU 4R580 (580watts) which only has a p4 connection for the board's 12v ATX connection. I plugged the 4pin connector into the GA-MA790FXT-UD5P 790FX's 8 pin socket and it powers the CPU. How crucial is it for me to use 8 pins which can be achieved by using an adapter made by Hiper but I have to use 3 of the PSU's modular connections http://www.hipergroup.com/products [...] action=FAQ

Any advice gratefully received

Add a reply
Sponsored Links
Register or log in to remove.
Bronze CPUs badge cjl   07-31-2009 at 10:46:41 AM
- 0 +

Unless you're overclocking a LOT, the 4 pin will be fine.

------------------------------ Asus P6T deluxe
i7 965 @ 4.2GHz (200*21), 1.384V
12GB Corsair Dominator DDR3-1600 CAS 7
 Reply to cjl
howardg   07-31-2009 at 11:03:05 AM
- 0 +

Thanks for the reply. What is the benefit of having 8 pins. I am not planning to OC but I want the system to be stable and to take advantage of the CPU's 4 cores and speed as well as getting the benefit from the RAM.

regards
howard

Reply to howardg
dokk2   07-31-2009 at 02:38:31 PM
- 0 +

Hi there howardg,,:) ,,I have almost the same mobo [790FX-UD5P DD2 instead of DDR3] and a 7850be,with only the 4pin connector ,,,it's the voltage that counts..:)

------------------------------ When you obsess on your enemy,,
You become The Enemy...
 Reply to dokk2
howardg   07-31-2009 at 03:50:30 PM
- 0 +

Thank for the reply dokk2
Do you know what the max voltage I can put through the 4pn connector

Reply to howardg
Bronze CPUs badge jsc   08-01-2009 at 04:10:30 PM
- 0 +

dokk2, it's not the voltage that counts. The voltage will always be 12 volts. It's the power (voltage X current) that counts.

howardg,
You mean the maximum current. The voltage will always be 12 volts.

My OC'd Q6600 pulls 9.5 amps at 3.6 GHz as measured with a lab calibrated clamp-on ammeter. I cannot see any current AMD chip pulling much more.

Do you need 8 pin connector? No. For your system, the 4 pin connector will be adequate. 8 pin, however, would be better.

Reply to jsc
howardg   08-01-2009 at 09:22:25 PM
- 0 +

Thanks jsc

What benefit would the 8pin connector provide.
Thanks

Reply to howardg
Ask the community Add a reply
Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > Do i need 8 pin ATX +12V connector
Go to:

There are 1176 identified and unidentified users. To see the list of identified users, Click here.

Forum map
Bestofmedia Forum ©
2000-2009 Bestofmedia Group
Page generated in 0.278 seconds
Sponsored links
  • Ask the community now
  • Publish
Ad
Related Topics
See all relatives topics
They won a badge
Join us in greeting them