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HD 4850 on 430w PSU

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June 29, 2008 5:01:47 PM

Hi folks,

I am planning to upgrade my 8600GT to HD 4850. I'm concerned whether my Cooler Master RS-430-PCAR can handle it.

I don't have much components on my machine:
Core2 e6550
Micro ATX motherboard
2 1gb ddr2-800 memory
1 sata 250gb Hard drive
1 dvd-rw drive
3 case fans

Here's my power supply:
http://www.newegg.com/Product/ShowImage.aspx?CurImage=17-171-015-05.jpg&Image=17-171-015-10.jpg%2c17-171-015-02.jpg%2c17-171-015-04.jpg%2c17-171-015-05.jpg%2c17-171-015-06.jpg%2c17-171-015-07.jpg%2c17-171-015-08.jpg%2c17-171-015-09.jpg&S7ImageFlag=0&WaterMark=1&Item=N82E16817171015&Depa=0&Description=COOLER+MASTER+eXtreme+Power+RS-430-PCAR+400W+Power+Supply
29amps on 12v? I'm not very informed about power supply specs.

More about : 4850 430w psu

June 29, 2008 5:12:18 PM

The official power requirement for 4850 is 450watts. But still, it might work.
June 29, 2008 5:28:20 PM

if should be just enough provided that ur cpu is not over clocked and ur psu is not too old......
Related resources
a b U Graphics card
a b ) Power supply
June 29, 2008 5:28:23 PM

It it was my system i'd plug it in and run it. You'll have to use the adapter included in most HD4850 GPU boxes to go from molex to PCIe 6 pin. Sapphire includes the adapter, not sure if Diamond does.
June 29, 2008 6:16:14 PM

Unfortunately that Cooler master PSU is junk. Save yourself the grief and get a new one.

This one will do nicely. Newegg.com - Antec earthwatts EA500 500W

It's Seasonic built and single rail.
June 29, 2008 6:41:04 PM

dirtmountain said:
It it was my system i'd plug it in and run it. You'll have to use the adapter included in most HD4850 GPU boxes to go from molex to PCIe 6 pin. Sapphire includes the adapter, not sure if Diamond does.

Yep, no harm in trying. If it works, it'll save you some money on new psu.
June 29, 2008 6:42:17 PM

PSU's get more unstable the higher they're pushed, especially the cheaper ones. One of the reasons people go overkill and put a 800+W PSU in their case is to get good clean power when the PSU is only using 50% of its capacity.

Even the "minimum" listed by ATI isn't really the minimum. With a single 4850 the whole system might draw 250W of power at peak (generally, depends on what you have in the case obviously). It's just that trying to draw 250W of power out of say a 300W supply is going to make it real unstable.

That's a long way of saying give it a shot if you want. Best thing to do is to get a new PSU, but I think the 4850 would run on that one (with maybe the occasional lock up or bluescreen if you're unlucky).
a b U Graphics card
a c 139 ) Power supply
June 29, 2008 6:48:36 PM

Since you're not using a power hungry CPU, motherboard and your case isnt loaded up with lots of HDDs and such you can probably sneak in that 4850 without a problem.
To be on the safe side you could disconnect two of the case fans at first. Add them back in after you have the new card running stable in your PC.
June 29, 2008 6:49:12 PM

go on bubbles
June 29, 2008 6:55:12 PM

dagger said:
Yep, no harm in trying. If it works, it'll save you some money on new psu.
Unless it blows up, then he gets to buy a bunch of new hardware. :lol: 
June 29, 2008 7:00:27 PM

Zorg said:
Unless it blows up, then he gets to buy a bunch of new hardware. :lol: 

Lol, I've always wondered how that happen. It's not like there's explosives in it or anything... :na: 
June 29, 2008 7:09:48 PM

ive had a cheap psu implode. it didnt take any other hardware with it. it was sure as hell loud, imploded at night.
June 29, 2008 7:14:10 PM

pcgamer12 said:
ive had a cheap psu implode. it didnt take any other hardware with it. it was sure as hell loud, imploded at night.

Nice! So how does it implode? Did it get smaller or something? :na: 
June 29, 2008 7:20:22 PM

That was a capacitor exploding. You do have a chance that nothing will fry, you also have a chance that something will. It's a nonlethal game of Russian roulette.
June 29, 2008 7:21:48 PM

Zorg said:
That was a capacitor exploding. You do have a chance that nothing will fry, you also have a chance that something will. It's a nonlethal game of Russian roulette.

Nonlethal, heh? Do anyone ever get hurt? What if they put their hand on the psu as it happen... :D 
June 29, 2008 7:27:11 PM

dagger said:
Nonlethal, heh? Do anyone ever get hurt? What if they put their hand on the psu as it happen... :D 
Nearly impossible that you would get hurt, but anything is possible. So, don't go outside or take a shower, because it is dangerous. :lol: 


June 29, 2008 8:04:41 PM

It should be ok for now in terms theoretical capacity however I would seriously consider getting a better power supply as soon as the budget permits. That unit is of marginal quality and an old design, not very efficient and not designed for today's systems. Modern power supplies are designed with a greater emphasis on the 12V portion, and corresponding lesser emphasis on the 3.3 and 5v rails. Further, Cooler Master is not a recommended brand for power supplies.
June 29, 2008 9:01:59 PM

kpo6969 said:
+1
If anything get the Antec earthwatts EA430 430W for $30 (after rebate)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
30 amps for $30 and has the pcie connector

btw: I believe on some models they're changing the oem to Delta.



Still go for the 500w one instead. Their 12v rail ampage may be the same 2x17amps, but one is 360w max load on 12v rails, the other is 408w.

On another note,

360/430=84
That's 84% of total wattage going to 12v rails.

Look at what I use, for comparasion:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

696/850=82
That's 82% of total wattage going to 12v rails.

12v rail is the useful one, which powers cpu, gpu, and harddrives. The bigger portion of total psu power going to 12v rails, the better. I guess brand name does buy you something. :p 
June 29, 2008 9:07:30 PM

I agree totally.
June 29, 2008 9:14:33 PM

Brand does buy you quality. Get that Antec PSU.
June 29, 2008 9:59:22 PM

kpo6969 said:
btw: I believe on some models they're changing the oem to Delta.
Some EA models? No more Seasonic? Do you have a link?
June 29, 2008 10:55:22 PM

staedham said:
Hi folks,

I am planning to upgrade my 8600GT to HD 4850. I'm concerned whether my Cooler Master RS-430-PCAR can handle it.

I don't have much components on my machine:
Core2 e6550
Micro ATX motherboard
2 1gb ddr2-800 memory
1 sata 250gb Hard drive
1 dvd-rw drive
3 case fans

Here's my power supply:
http://www.newegg.com/Product/ShowImage.aspx?CurImage=17-171-015-05.jpg&Image=17-171-015-10.jpg%2c17-171-015-02.jpg%2c17-171-015-04.jpg%2c17-171-015-05.jpg%2c17-171-015-06.jpg%2c17-171-015-07.jpg%2c17-171-015-08.jpg%2c17-171-015-09.jpg&S7ImageFlag=0&WaterMark=1&Item=N82E16817171015&Depa=0&Description=COOLER+MASTER+eXtreme+Power+RS-430-PCAR+400W+Power+Supply
29amps on 12v? I'm not very informed about power supply specs.


OK, your PSU is capable of ~ 350 W at 100% load. I can't find a reputable review of that PSU, so let's say a safe load would be 80% of that, or 280 W. Anand's review put the system load at load as ~230 W, but used a test that was heavy on GPU and light on the rest of the system. So your PSU would be cutting it a bit fine.

I concur with Zorg's comments on russian roulette, but would differ in my recommendation. I'd be looking in the 550 W to 650 W range to allow some room for (maybe) a sound card or more drives, etc.

Jonnyguru.com is a well respected PSU review site, and I'm sure that you know what pricing engine works best for you.

My 2p....
June 30, 2008 12:06:12 AM

Thanks for the quick replies people.
What if the power supply does get overloaded? my whole system will fry?
June 30, 2008 6:34:24 AM

kpo6969 said:
http://www.jonnyguru.com/forums/showthread.php?t=4067
I think only the EA380 will still be Seasonic.
Thanks for the link. This thread was started on 4/10, I must be asleep at the switch.

Interesting, we will have to see if we can find an in depth review of the D unit.

I can't, in good conscience, recommend the EA series until I see a good review. The Delta might be fine, but I need to see first.
June 30, 2008 6:44:24 AM

staedham said:
Hi folks,

I am planning to upgrade my 8600GT to HD 4850. I'm concerned whether my Cooler Master RS-430-PCAR can handle it.

I don't have much components on my machine:
Core2 e6550
Micro ATX motherboard
2 1gb ddr2-800 memory
1 sata 250gb Hard drive
1 dvd-rw drive
3 case fans

Here's my power supply:
http://www.newegg.com/Product/ShowImage.aspx?CurImage=17-171-015-05.jpg&Image=17-171-015-10.jpg%2c17-171-015-02.jpg%2c17-171-015-04.jpg%2c17-171-015-05.jpg%2c17-171-015-06.jpg%2c17-171-015-07.jpg%2c17-171-015-08.jpg%2c17-171-015-09.jpg&S7ImageFlag=0&WaterMark=1&Item=N82E16817171015&Depa=0&Description=COOLER+MASTER+eXtreme+Power+RS-430-PCAR+400W+Power+Supply
29amps on 12v? I'm not very informed about power supply specs.


Are you by any chance selling this PSU on craigslist, b/c I have seen that exact same psu being sold, and was just wondering if that was yours, probably a coincidence and all, but never hurts to ask
June 30, 2008 6:48:15 AM

staedham said:
Thanks for the quick replies people.
What if the power supply does get overloaded? my whole system will fry?
Your system will not run properly. I would be more concerned about the PSU dying and frying your system. They are really bad PSUs. Skip the recommendation of the Antec until we can see a good review. Apparently they changed OEMs, as you can see above.

Try these instead.

CORSAIR CMPSU-450VX 450W

CORSAIR CMPSU-550VX 550W


June 30, 2008 6:49:21 AM

FrozenGpu said:
Are you by any chance selling this PSU on craigslist, b/c I have seen that exact same psu being sold, and was just wondering if that was yours, probably a coincidence and all, but never hurts to ask
I hope you're not planning on buying it.
June 30, 2008 7:01:25 AM

no but it was b/c the 12v amperage wasn't enough, I needed at least 27ish Amps, for what i was working on. But will end up just using my seasonic 380 watter, is working well anyways, which sure are pretty effeicient PSU's no doubt.

On my next build though, side note. I think I might be torn between 2 PSU's the PC P&C 750 watter, or the Seasonic 700 watt, any thoughts zorg?

BTW if you think the 750 PC P&C is great, then what do you think of the PC P&C 860 turbo-cool? I really like the idea of a 7 year warranty instead of the 5 year...plus mtbf 200,000 hours, man....I'm not sure if the 860 watter was being tested at 50c as well though, any thoughts?

I will be using it in a P182 case that has been tastefully modified w/ a smoked window so the internals will be visible, so cable management although somewhat taken care of in the p182, is also on the psu. So I can figure out what to do w/ all extra cables but want great psu for the money as well, if not a great psu that will last me thru a few more builds.

Also I do understand that it may be a little overkill, I am going to build an overclocking beast of a machine, and as long as it's 80-plus certified whats the harm in going a little overboard?

June 30, 2008 10:02:03 AM

IMO, both the Silencer 750 and the Seasonic M12 700 are both really good PSUs. The M12 is a little pricey

Newegg still has some Silencer 750s on a ridiculous sale, I thought that sale was over. Buy now or forever hold your peace.

Newegg.com - PC Power & Cooling S75QB 750W It must be an old model?
Original Price: $249.99
You Save: $100.00
$149.99
($119.99 after $30.00 Mail-In Rebate )
Free 3 Business Day Shipping


Holy Crap, beg borrow steal... buy it now. I paid $129 for my Silencer 610



The Turbo-Cool 860 appears to be in a different league, in both price and performance. Here is a link to a pretty in depth review. PC Perspective - PC Power & Cooling Turbo-Cool 860W PSU Review
June 30, 2008 2:45:16 PM

FrozenGpu said:
Are you by any chance selling this PSU on craigslist, b/c I have seen that exact same psu being sold, and was just wondering if that was yours, probably a coincidence and all, but never hurts to ask


It's not mine. Probably another guy trying to sell off his PSU for a better one.
June 30, 2008 2:51:19 PM

Zorg said:
Your system will not run properly. I would be more concerned about the PSU dying and frying your system. They are really bad PSUs. Skip the recommendation of the Antec until we can see a good review. Apparently they changed OEMs, as you can see above.

Try these instead.

CORSAIR CMPSU-450VX 450W

CORSAIR CMPSU-550VX 550W


Thanks Zorg. I'm going to take your recommendation and get the Corsair 450VX PSU
June 30, 2008 4:53:22 PM

That's a good single rail PSU.
a c 130 U Graphics card
June 30, 2008 5:18:49 PM


Hi i was just wondering about this myself.
I just read a review on Xbit labs and they tested the power consunption of a 4850 on this PSU Chieftec ATX-410-212 PSU (410W) which has two rails one 15 one 18 and a grand total of 240 watts on them = 20 AMPS.
But when they test it properly they put it on this Enermax Galaxy DXX EGX1000EWL PSU (1000W).
Now they wouldnt try and test it for power consumption on something that it wouldnt work on would they ?
I can understand the bigger PSU for testing as they are using more powerful cards and CPU, but then looking further theres this "Anyway, the new flagship card from Nvidia doesn’t have a voracious appetite especially if compared with the GeForce 8800 GTX. You don’t need a very advanced PSU for it. Any 400-450W PSU with two graphics card cables will do because the Gainward Bliss 9800 GTX 512MB comes without Molex → 6-pin PCIe adapters."
I know that the companies like to put a saftey margin in when they give out specs but thats a bit much isnt it ?
So what are teh required AMPS to run the thing ?
Mactronix
June 30, 2008 5:53:22 PM

Zorg said:
IMO, both the Silencer 750 and the Seasonic M12 700 are both really good PSUs. The M12 is a little pricey

Newegg still has some Silencer 750s on a ridiculous sale, I thought that sale was over. Buy now or forever hold your peace.

Newegg.com - PC Power & Cooling S75QB 750W It must be an old model?
Original Price: $249.99
You Save: $100.00
$149.99
($119.99 after $30.00 Mail-In Rebate )
Free 3 Business Day Shipping


Holy Crap, beg borrow steal... buy it now. I paid $129 for my Silencer 610



The Turbo-Cool 860 appears to be in a different league, in both price and performance. Here is a link to a pretty in depth review. PC Perspective - PC Power & Cooling Turbo-Cool 860W PSU Review


would you say that it's in a great leaguer though, b/c it appears that way, but I'd like to get soem more insight on that, I was also wondering about these industrial grade PSU's that I'd hear about that achieve like 93% efficiency, not sure if they are 80 plus certified or not, but when will consumer PSU's move into this field, i'm sure it would be ridiculously expensive but I'd love to see how close to perfect efficiency they could get. Not to mention would the PSU industry ever consider a 90 plus certification?

I am a student of law, but have the heart of an engineer :D 

As always Zorg, your input is always greatly appreciated :) 
June 30, 2008 10:39:02 PM

FrozenGpu said:
would you say that it's in a great leaguer though, b/c it appears that way, but I'd like to get soem more insight on that, I was also wondering about these industrial grade PSU's that I'd hear about that achieve like 93% efficiency, not sure if they are 80 plus certified or not, but when will consumer PSU's move into this field, i'm sure it would be ridiculously expensive but I'd love to see how close to perfect efficiency they could get. Not to mention would the PSU industry ever consider a 90 plus certification?

I am a student of law, but have the heart of an engineer :D 

As always Zorg, your input is always greatly appreciated :) 
I read the review and I would say it is certainly a first class PSU. Maybe a little noisy at full load, but that's a lot of load. Thanks for the compliment. See kpo6969's link on the CWT 90% efficiency PSU. Nice find, I missed that.
July 1, 2008 7:24:17 AM



Quote:
his news is not only interesting because 90% energy efficiency is highly desirable. Since we have no way to verify the claim, it will remain a statement for the time being. However, the news is also interesting because the manufacturer, CWT http://en.wikipedia.org/wiki/CWT or Channel Well Technology, is not one of the popular power supply http://en.wikipedia.org/wiki/Power_supply brands. Instead, it appears to be a small and rather unknown manufacturer, which isn’t the case. It is an important player in the PSU market, which has been dominated by retail vendors that don’t actually manufacture power supply units themselves.

CWT is the OEM partner for big names such as Chieftec and Thermaltake http://en.wikipedia.org/wiki/Thermaltake . According to statements from a Computex representative, CWT’s business is based on OEM orders by approximately 80%. However, the firm intends to grow into the retail market as well, as it will be able to release new technology quicker than some OEM PSU http://en.wikipedia.org/wiki/PSU customers. The first product may be CWT’s 90+ series (we weren’t provided with a product name yet), which may be the first of its kind. Other PSU manufacturers are struggling with receiving 80plus Bronze and Silver certifications; 80plus Gold equals 90% efficiency at low and at maximum load. Hence this could be the first product to reach it once available in mass production. The new PSU also comes with a new feature: extendable 12-V rails. These are meant to avoid branching out the power cables too much by connecting one device to the next.

The 90+ series is a 850-W PSU that comes at standard ATX dimensions of 150x160x86 mm.


so 80-plus gold certification means that the PSU will have 90% at low and maximum loads, OMG!

Now that is an improvement, go Channel Well Technology!

Aren't they also found in other retail PSU's as well, other than Chieftec or Thermaltake, like the ultra x3's i hear use CWT, but i was sure there were others as well!

I also heard that Zippy units, well the serene anyways was supposed to be at like 88-89% effeciency, But zippy units cannot be found easily, its almost as they never truly existed, although there is a website, but maybe its all a conspiracy!


!