I have a 34a on the 12v rail PSU, does it mean i have 12v x 34a =408W on 12v rail?

Toggle sidebar Toggle sidebar
L

leandrro

Honorable
Oct 2, 2012
25
0
10,530
according to extreme power supply calcultor my hole system consumes about 300W
my 7870 consumes about 170W
and my cpu 95W
 
Solution
cst1992
yes that is correct.
It is given in the psu sticker separately as well, that how much watts the PSU can deliver on the +12V rail.
Sort by date Sort by votes
L

leandrro

Honorable
Oct 2, 2012
25
0
10,530


corsair VS450
its said to have one single 30a 12v rail on older models and 34a on newer models like mine, instead of the 2x 17a rails other psus have

 
Upvote 0 Downvote
L

leandrro

Honorable
Oct 2, 2012
25
0
10,530


my system uses only 300W thats for sure, ive calculated all the componets max Wattage

amd list 7750 card with 400W minimum PSU
ive used it on a 200W psu or 18 months since i knew it was using only 180W max and it was perfect

but i got worried a bit over 40a 12v rails requirement and needed to confirm volts x amps math
thanks for the help

 
Upvote 0 Downvote
L

leandrro

Honorable
Oct 2, 2012
25
0
10,530


yes its there, and also on the box
408W confirmed
thanks a lot
 
Upvote 0 Downvote
ko888

ko888

Titan
Feb 18, 2009
16,708
41
84,990
What is the brand and model of your Radeon HD 7870?

There are two types of HD 7870 cards each using different GPU architecture. The Radeon HD 7870 Boost Edition uses a Tahiti LE GPU. The Radeon HD 7870 GHz Edition uses a Pitcairn XT GPU.

The Radeon HD 7870 Boost Edition draws a lot more power.

FYI the eXtreme Power Supply Calculator Lite from eXtreme Outer Vision uses 115 Watts for the AMD Radeon HD 7870. That is the peak power consumption during gaming for an AMD Reference Design Radeon HD 7870 GHz Edition card.

The Radeon HD 7870 Boost Edition draws at least 60 Watts more.
 
Upvote 0 Downvote
L

leandrro

Honorable
Oct 2, 2012
25
0
10,530


its sapphire 7870 oc edition 2gb
its the 2800m transistors version
with the pitcarn

is it really only 115W?
 
Upvote 0 Downvote
ko888

ko888

Titan
Feb 18, 2009
16,708
41
84,990


AMD Reference Design Radeon HD 7870 GHz Edition power consumption for the card only:

from www.techPowerUp.com:
Maximum Card Power (Furmark): 144 Watts
Peak Card Power reached during gaming: 115 Watts
Average Card Power during gaming: 103 Watts

from www.ht4u.net:
Maximum Card Power (Furmark): 159.23 Watts
Peak Card Power reached during gaming: 126.84 Watts

overclocked to 1180 MHz GPU and 1450 MHz memory:
Maximum Card Power (Furmark): 181.10 Watts
Peak Card Power reached during gaming: 142.34 Watts
 
Upvote 0 Downvote
L

leandrro

Honorable
Oct 2, 2012
25
0
10,530


nice, its safer than i expected
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom