Is 275W PSU enough for ATI HD 4650 DDR2 Low Pro?

Enclosures, modding, blowholes, and the power needed to run it all.

Moderators: Nemesis, SpotTheCat

Is 275W PSU enough for ATI HD 4650 DDR2 Low Pro?

Postposted on Fri Oct 23, 2009 2:24 pm

Hi all,

I am planning to buy a better low profile video card from newegg but I'm not sure if my existing PSU can hold it. I think it will but, please let me know if it is suicide.

I currently have a 275W PSU that came with the APEX DM-387 case. I think it is just a generic FLEX PSU and I have a hard time finding a better replacement for it because of the design. I have no choice but to stick with it for now. I found one but it was mega expensive and it's on Ebay - so I'll pass for the PSU upgrade for now.

I currently have a 7300LE 64mb PCIe video card and its dying on me (bloated capacitor). I need to replace it with a better one.

I'm not going to play games or something video extensive, I just want a better one if I'll need it in the future. The most powerful low profile card I found is this one, the ATI 4650. Nvidia low pros are expensive and power hungrier.

Do you think my PSU can handle the 4650 DDR2 1GB video card?

I have KillAwatt and right now my system draws, 80Watts when Idle, 105Watts when Full - with the 7300LE inside.

Full Specs:

E5200 @ Stock Speed
G31m-ES2L F10 Beta Bios
1 x 7300LE 64mb generic card
2 x 2GB Crucial 800Mhz DDr2 Cas5
1 x 250GB 7200.10 Seagate Barracuda
1 x 250GB 7200.10 Seagate Barracude - External via HDD Dock Esata (has its own power)
1 x Realtek PCI network card (not the built in)
1 x Broadcom 4318 Wireless PCI (Asus WL-138G V2)
1 x DVDRW Drive
1 x Apache Universal CPU Cooler running @ 1700rpm when Idle
1 x 90mm fan Silent
1 x USB Wireless Keyboard and Mouse MK300
1 x HP2009m 20 inch LCD monitor

Apex DM-387
http://www.newegg.com/Product/Product.aspx?Item=N82E16811154087&cm_re=apex-_-11-154-087-_-Product

ASUS EAH4650 DDR2 1GB
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121340

Thank you.
keplenk
Gerbil
 
Posts: 14
Joined: Fri Oct 23, 2009 2:21 pm

Re: Is 275W PSU enough for ATI HD 4650 DDR2 Low Pro?

Postposted on Fri Oct 23, 2009 2:36 pm

well the 4650 doesn't have a pci-e connector so you are looking at a maximum of 75w over the pci-e bus for the card. actual power draw will be less though. so if you have 105w at full load and you add 75w to that for a theoretical maximum you get about 180w. my guess is your max load will be closer to 150-160w.

now your 275w generic flex psu should be able to power it all. but i bet that 180~200w is really about the maximum you want to load that psu before it blows up. and there is no telling how long your psu can handle the extra load form a new video card....it might be fine for the first few weeks but no telling how long it will last.
ryko
Gerbil Team Leader
 
Posts: 235
Joined: Tue Feb 27, 2007 3:58 pm
Location: new york

Re: Is 275W PSU enough for ATI HD 4650 DDR2 Low Pro?

Postposted on Fri Oct 23, 2009 2:46 pm

I'd get something a little beefier personally. At least a 400 Watt PSU to continue allowing for upgrades.
X __________________________
khands
Graphmaster Gerbil
Silver subscriber
 
 
Posts: 1219
Joined: Mon Dec 01, 2008 12:32 pm
Location: Chicagoland

Re: Is 275W PSU enough for ATI HD 4650 DDR2 Low Pro?

Postposted on Fri Oct 23, 2009 3:03 pm

khands wrote:I'd get something a little beefier personally. At least a 400 Watt PSU to continue allowing for upgrades.


Oh, how I wish I can :( Unfortunately, I rarely find Flex PSU that are greater than 350W. Unless it was bundled with whole case or super expensive if bought separately. I'm still searching though.

@ryko: Thanks for the info. I was also wondering if that would be the case since my full was already 105W. If that how it works, I think I'll be safe for now. I just don't know if my PSU will give up on me on the long run.
keplenk
Gerbil
 
Posts: 14
Joined: Fri Oct 23, 2009 2:21 pm

Re: Is 275W PSU enough for ATI HD 4650 DDR2 Low Pro?

Postposted on Fri Oct 23, 2009 3:11 pm

You should be fine. You can undervolt that CPU to save some more power.
i5 2500K @ 4.5GHz / Cooler Master V8 / Asus P8P67 Evo / 8GB G.skill DDR3-1600 / MSI GTX 560 Ti / Seasonic S12-650 / 1TB Spinpoint F3 / Corsair 600T Graphite / those cheap 1440p Korean monitors
BoBzeBuilder
Graphmaster Gerbil
Gold subscriber
 
 
Posts: 1191
Joined: Tue Nov 08, 2005 8:43 pm
Location: Beerland

Re: Is 275W PSU enough for ATI HD 4650 DDR2 Low Pro?

Postposted on Fri Oct 23, 2009 3:16 pm

BoBzeBuilder wrote:You should be fine. You can undervolt that CPU to save some more power.


I was also thinking of that just incase 4650 drains more power. I'm going to order now :D
keplenk
Gerbil
 
Posts: 14
Joined: Fri Oct 23, 2009 2:21 pm

Re: Is 275W PSU enough for ATI HD 4650 DDR2 Low Pro?

Postposted on Fri Oct 23, 2009 4:42 pm

If your E5200 is anything like the ones I've played with then it should do 2.5ghz @ 1.0v, but this also depends on the motherboard.

Just work backward slowly drop 0.5v at a time, test and keep track of it. Just like overclocking.

I don't have any stats on the 4650, but the individual power consumption of a 4670 is 8.7w idle and 47.1w load and a 4550 is 8.1w idle and 18.5w load.
SN95G5v3/A64 3500+ 2.2ghz@1.2v 800mhz@0.8v/1gb Geil UltraX/Seagate 250gb/Seagate 320gb/Liteon DVD/XFX 6600GT/2x2005FPW
Rainbows lie in corded knots
While thunder wakes the sleeping crocs.
dragmor
Grand Gerbil Poohbah
 
Posts: 3579
Joined: Mon Sep 23, 2002 7:24 pm
Location: Oz

Re: Is 275W PSU enough for ATI HD 4650 DDR2 Low Pro?

Postposted on Fri Oct 23, 2009 6:06 pm

Your PSU would be okay if it were a good brand instead of Allied.
Here's the original equipment TFX power supply:
http://www.newegg.com/Product/Product.a ... 6817154027
Here's a SeaSonic 300-watt 80+% efficient unit:
http://www.newegg.com/Product/Product.a ... 6817151070
i7-4770K, H70, Gryphon Z87, 16 GiB, R9-290, SSD, 2 HD, Blu-ray, SB ZX, TJ08-E, SS-660XP², 3007WFP+2001FP, RK-9000BR, MX518
JustAnEngineer
Gerbil God
Gold subscriber
 
 
Posts: 15424
Joined: Sat Jan 26, 2002 7:00 pm
Location: The Heart of Dixie

Re: Is 275W PSU enough for ATI HD 4650 DDR2 Low Pro?

Postposted on Fri Oct 23, 2009 8:55 pm

JustAnEngineer wrote:Your PSU would be okay if it were a good brand instead of Allied.
Here's the original equipment TFX power supply:
http://www.newegg.com/Product/Product.a ... 6817154027
Here's a SeaSonic 300-watt 80+% efficient unit:
http://www.newegg.com/Product/Product.a ... 6817151070


I can't believe I missed the SeaSonic. Thanks for the link. You sir are a life saver :D
keplenk
Gerbil
 
Posts: 14
Joined: Fri Oct 23, 2009 2:21 pm

Re: Is 275W PSU enough for ATI HD 4650 DDR2 Low Pro?

Postposted on Tue Oct 27, 2009 2:05 pm

It should be fine. That's far from a demanding system.
FuturePastNow
Gerbil Elite
 
Posts: 601
Joined: Mon Nov 24, 2008 11:28 am


Return to Cases and Power Supplies

Who is online

Users browsing this forum: No registered users and 2 guests