Can I run a 4650 on this psu?

Hewlett-packard / A6407c
October 9, 2009 at 11:55:42
Specs: Windows Vista, 4400+Brisbane/3gb
It's kind of a wimpy PSU it came with the PC

LiteOn 300w with 19amps on the 12v

now I ran the extreme power supply calculator and it said I had enough wattage, but I think it really depends on the 12v right?

My system specs are

Cpu 4400+ Brisbane 65watts
3 sticks of ddr2 ram
add 4650 video card
1 hdd at 7200rpms

cpu tdp at 85%
systemload 90%
capacitor aging at 15%

cpu tdp at 100%
system load 100&
capacitor againg at 30%

I just want to buy the card and see if the PSU can handle it, but if it can't I'll buy a new PSU, but I don't want to if It's not needed you know.

so what do you think?

See More: Can I run a 4650 on this psu?

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October 9, 2009 at 12:04:27
It will probably run it but it would be just barely feasable. I would recommend 400 watta or more. If you don't run anything that graphic intensive like video editing or high end gaming what you have may do. I'd be looking into upgrading though.


I want to go like my grandfather did. Peacefully in his sleep. Not screaming at the top of my longs like the passangers in his car.

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October 9, 2009 at 12:08:45
According to the card specs, it requires a 350 watt or greater PSU. With your current psu, you run the risk of frying the card. Look at the corsairs on Newegg. Some have a single 12volt rail. That would be your best bet.

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October 9, 2009 at 13:29:53
ok I decided I'll get a corsair PSU with one good 12v.

hey^the 8 pin cpu connector can convert into a 4 pin for my motherboard right?

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Related Solutions

October 9, 2009 at 16:20:33
The HD 4650 would work with no problems, however it's not a very good card, especially if it uses GDDR2 memory rather than GDDR3. I suggest you go for a Radeon HD 4670 & not worry about the PSU.

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October 9, 2009 at 19:21:54
Radeon HD 4670....

400 Watts Minimum Power Supply Requirement

The PS capacity max rating is almost always a peak rating, not a continuous rating. If you are into gaming, since you are more likely to be loading the graphics card more, it's recommended you not have a constant load on the PS of more than about 80%, so the PS size should be at least 1.25 X what the minimum PS the graphics card requires the system have.
E.g. in this case, 1.25 X 400 = 500 watts.

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October 9, 2009 at 21:09:13
The HD 4670 uses less than 60W & does NOT require the 6-pin PCIe plug. The 300W LiteON PSU is sufficient.

Here's an HD 4670 for $40 after rebate:

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October 10, 2009 at 08:03:09
According to the info jam pointed to at the first link....

Videocard - System Under load

Radeon HD 4670 207 Watt
Radeon HD 4850 269 Watt
Radeon HD 4870 353 Watt

Of course, that's on the particular test system - your system may draw more.

269 - 207 = 62 watts less for 4670 than 4850

Since your system may draw more power, you should stick to the minimum recommended PS capacity spec.

The reviewer states:
"A single Radeon HD 4850/4870 series requires you to have a 400 Watt power supply unit at minimum ..."

That's NOT correct (see below), but say you go by that.

400 - 62 = 338 watts power supply unit at minimum for the 4670

Another page in the same review:

Power Consumption (peak)
4850 ~110W
4870 ~160W
4670 ~59W
3850 ~105W

110 - 59 = 51 watts less for 4670 than 4850
400 - 51 = 349 watts power supply unit at minimum for the 4670

ATI Radeon™ HD 4600 Series System Requirements
400 Watt or greater power supply .... is recommended

Even if 4670 draws a lot less power than 4850, it's not going to be 100 watts less

450 Watt or greater power supply with 75 Watt 6-pin PCI Express® power connector recommended

500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended

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October 10, 2009 at 09:16:50
I've instaled a HD4670 in a Dell with a 250W psu; a bunch of 'em on various 300W machines.

My girlfriend's brother owned the Dell GX60 with the 250W psu and the 4670 worked fine for a year. He recently sold both the GX60 and the HD4670 on Craigslist. He got $50 for the mini tower and $65 for the video card. Point is, these cards are a good investment and the only available solution if you want to do anything more than surf the web.

That said, it's always a good idea to install a good psu like Nick linked to in response #3...if you can. The GX60 did not allow that option.


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