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Graphic Card with Psu Promblem.

Last response: in Graphics & Displays
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April 6, 2011 8:59:19 AM

Hi,I wanted to upgrade my ati 5450 (due to the shtty fps) to 5770/6850.But my computer's psu is only 250watts and im scared that it will overheat of compatilbity issues.Can you guys give me some advice what i can do?T_T.
Im living in Singapore and im only 13.So pls use more simplified words..thanks.
My Com Specs
Core-i5-750 (L) 2.66 GHz (95W)
Chipset
Intel H57 Express
Motherboard
•Manufacturer: MSI
•Motherboard Name: MS-7613
•HP/Compaq motherboard name: Iona-GL8E

Power supply
•250W
Hard drive
•750 GB SATA 3G (3.0 Gb/sec)
•7200 rpm

Video Graphics
Radeon HD5450
•1 GB VDDR3 memory
•I/O Ports: HDMI, DVI-I (single-link only), and VGA (using included DVI-to-VGA adapter)

Sound/Audio
High Definition 8-channel audio
•ALC 888S chipset
Coolers*
Foxconn Coolers.

***PSU BRAND**
I dont know and pls do not ask me to change as my warranty does not applies if i change my psu.
More information
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02...
April 6, 2011 9:50:24 AM

Change to a Corsair VX450. OEMs usually give shitty PSUs. Don't risk it.
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April 6, 2011 10:10:02 AM

I Can't Change my psu.It will cut off my warranty.
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a c 171 U Graphics card
April 6, 2011 10:56:16 AM

You probably can't change anything then. As soon as you open the case to put in a new PSU or GPU your warranty will expire. (stop, cease to exist.) If you aren't willing to do this, there isn't anything you can do.
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April 6, 2011 11:30:31 AM

So theres no chance i can run a Msi 5770 on my com?
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a c 171 U Graphics card
April 6, 2011 11:39:50 AM

Sure there is, but you'll void the warranty as soon as you open the case. If you are willing to do that for the GPU, you might as well change the PSU as well.
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April 6, 2011 12:02:25 PM

Lol But yesterday i open the case while holding the sticker making sure it does not break or w.e and today the service man came becos my harddisk was spoiled and he said its ok lol @@ and he gave me another sticker lol.
Should i upgrade to 5770 or gtx 450??
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a c 171 U Graphics card
April 6, 2011 1:19:10 PM

The 5770 is faster then the GTS450. Even the OC'd models. I'd pick the 5770.
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April 7, 2011 2:47:45 AM

But seriously, if you intend to put a card in, DO CHANGE your PSU!

You wouldn't want to risk killing the new card you put in, would you?
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April 7, 2011 7:44:27 AM

A 250w won't run those cards, check how many amps are on the 12v rail (should be a sticker on the PSU either on the inside or out.)

I just put in a HD5450 on a 300 Watt Bestec PSU in a HP OEM, its a 12v 19a (so its true watts are 12v x 19a = 228 watts) Then take into account from reading from manufactuers website it runs at 70% efficency, so 70% of 228 = 160 watts. Then its an older machine from 2009 so its likely to be even less given its age since PSUs lose their efficency over time.

The manufacuter of the GPU recommends a 350 Watt quality PSU minimum.

Ofcourse it runs fine however, because under 100% load the machine would be lucky to hit say 150 Watts.

If you really wanna risk your PSU dying, or frying your whole machine, or having the GPU fail then think smaller.

A 5670 is pretty efficient and should be able to play newer games on medium settings with ease, but even then I wouldn't risk it with a 250w.

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a c 171 U Graphics card
April 7, 2011 8:39:47 AM

Quote:
I just put in a HD5450 on a 300 Watt Bestec PSU in a HP OEM, its a 12v 19a (so its true watts are 12v x 19a = 228 watts) Then take into account from reading from manufactuers website it runs at 70% efficency, so 70% of 228 = 160 watts.


Doesn't work that way lazy. If it says it can output 228W, then it has to or else the company faces mega lawsuits. Its 70% efficient at converting AC electricity to DC. If its 70% and outputting 228W, then its pulling 326W from the wall. If you had an 80% unit it would be pulling only 285W.

Quote:
Then its an older machine from 2009 so its likely to be even less given its age since PSUs lose their efficency over time.


Unless you have a really junk unit, it will take longer then 2 yrs for the caps to age.

Quote:
The manufacuter of the GPU recommends a 350 Watt quality PSU minimum.


Ofcourse it runs fine however, because under 100% load the machine would be lucky to hit say 150 Watts.


So whats the point of all that stuff you posted if it will run fine? If the computer would need ~150W, and his unit has ~200ish, then it will be fine. His at the upper edge of his power, but its still possible.

I'm not sure why he doesn't want to change the PSU Its not a void warranty if he's already cracking the case. probably a money thing, and he should replace it if he wants a real gaming card. I strongly suggest at LEAST a 5750 for any serious gaming, more if you have a higher resolution screen.
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April 8, 2011 5:49:12 AM

Ohh this.My parents extended my warranty to another 2 yrs.Now im just scared hp will find out i changed my power supply.
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a c 171 U Graphics card
April 8, 2011 6:01:52 AM

Keep the old one around. If something goes bad carefully open it like you did before and put the old parts back in.
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April 8, 2011 6:04:18 AM

Ohh..But im buying an ati Msi 5770 which comes with 2 fans..so,i have 0 chance of running it?
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a c 171 U Graphics card
April 8, 2011 8:55:53 AM

You have a PCIe 16x slot, so I don't see why you can't put a GPU in there.

I meant keep the old PSU around, that way if something goes wrong you can put the old PSU back in and try to claim your warranty. If you have the new PSU in there they might try to claim that because you've opened the cabinet the warranty is void because they don't know what you did.
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April 8, 2011 10:25:36 AM

So,If i use this i can run a 5770 or a 6850?Or should i just try a 5670.5770 on my com?
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a c 171 U Graphics card
April 8, 2011 10:36:33 AM

The FSP should be ok with either the 5770 or 6850. Your iball should be ok up to the 5670.
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a c 171 U Graphics card
April 8, 2011 12:04:47 PM

Oops, wrong thread. NM the iball part.
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April 8, 2011 2:20:43 PM

I watched reviews of 5670 and it sucks alot...how many % chance of success rate with msi 5770 hawk?
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April 8, 2011 2:21:17 PM

Without upgrading psu
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a c 171 U Graphics card
April 9, 2011 12:18:39 AM

Running a 5770 on a stock HP 250W PSU? Not good. I think its rated at around 110W. Assuming you have a generic 95W quad CPU, that's 200W right there. My general rule of thumb is to toss in another 50W for mobo, drives, etc, and you're right at the 250W limit of your PSU, assuming all 250W can be output on the 12V rail. (slim chance) Even if you could, your PSU will die faster from having to run at 100%.
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April 10, 2011 5:47:46 AM

Im buying a Antec Neo ECO 450W is it good?And i opened my case today and its quite small !@!@! im afraid the msi hawk wont be able to be put inside
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April 11, 2011 8:27:38 AM

This is my last question before i close it...can i run a 5750 on my 250psu(bestec btw) if yes,is there any risk and regarding 5670,can i run it smoothly?
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April 11, 2011 8:27:55 AM

This is my last question before i close it...can i run a 5750 on my 250psu(bestec btw) if yes,is there any risk and regarding 5670,can i run it smoothly?
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Best solution

a c 171 U Graphics card
April 11, 2011 11:16:39 AM

5750? I doubt it. The card is rated at 76W, so you only get an extra 30W or so from my previous example. Considering you were right at the wire there, I doubt 30W will make that much of a difference.
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April 11, 2011 12:50:13 PM

Ok thanks.Im going to buy a xfx/msi/asus 5670.Which one do u recommend?Does the fan take up more voltage?Thanks.
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a c 171 U Graphics card
April 11, 2011 2:53:36 PM

Asus or XFX. The fan will use some power, but I'm not sure I would worry about it.
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April 11, 2011 11:05:20 PM

Dude, Don't run a 5670 with a 250Watt PSU, I tried and it fried it, i would atleast get a 300watt or 350 for that card. im back to my 4350 becuase of that, i now have a 500watt PSU though. If you want to risk it go ahead just some advice
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April 12, 2011 11:56:39 AM

Wth?=,='' I thought 4745454b say it can run?I thought the 5670 doesnt need a power supply?
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April 13, 2011 7:17:29 AM

Bumps,Im shipping this card and if doesnt work i can cancel it..
Answers asap pls!!!
CAN 5670 run on 250bestec psu
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a c 141 U Graphics card
April 13, 2011 8:45:28 AM

Strongly recommend an upgrade on that PSU, the 5670 might work but the card will probably not be able to get enough power to run at full capacity, and you run a high risk of blowing up the PSU and possibly taking your whole computer down with it. If you want more graphical horsepower, you need a new power supply as well as the new card.
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April 13, 2011 8:52:04 AM

Best answer selected by Mervyn1389.
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