Ok, i ordered my psu, and was wondering something..If your psu doesnt have enough power for the components, does it just run really slow?

Zripp

Your PSU could crap out, it could cause components to not function or even damage them if the PSU is of not so good quality.

CPU - AMD Phenom II X4 955
MoBo - ASUS EVO 790X
RAM- Mushkin DDR3-1600 2x2GB @ 7-7-6-18
GPU - XFX HD 4890 Xtreme
Case - Cooler Master HAF 932
Optical - Lite-On SATA DVD Burner

Total W/O S&H - $878.93

Add-on a Lite-On Blu-Ray Readerand you get....

Total W/O S&H - $938.92

[QUOTE="kilerchese"]

[QUOTE="xisheng"]

GTR2addict

Here is a way hide that CPU power cable a little better, or atleast make it look better.

You can do what I did here in my old case with my CPU power cable. Works really well and looks nice as well.

Linked thumbnail, click TN for full image.

Yeah it does... The 8-Pin CPU connector is in the top left corner... where mine is.... If you look you can see that instead of having my power cable drapped over my video card, I have it going under the video card.

Hmmm, that's interesting.:roll:

But I wonder why on the specifications for the 4890 OC card they say that the minimum power supply required is 500Watt? And 600 recommended. if it only drewout 250W at max?

Why do ATI say that 500W is enough? I mean, if its not enough to give power to the rest of the components then what are ATI talking about?! Is it business strategy, so that people buy the graphics card more easily without getting all too worried about their PSU?

From what my 570 Watt PSU was, I initially thought that 500W went on the GPU with only 70 watts remaining to power up the rest of the components.:? Which was not enough. But its confusing though, because lots of people give me different opinions.

I mean, hopefully I wouldn't be all too worried about it once this problem is solved with my new corsair 850W PSU. But I really should learn from my mistakes so that in future I don't repeat them...

BLaZiNg_SPEED

The wattages provided by companies is the total system power consumption.

They recommend that you have at least a 500w PSU for your WHOLE system, not just the GPU.

All images in this post are linked thumbnails to the full image.

My old Antec 900 w/Intel Core i7 920 cooled by a ThermalRight Limited Edition Black TRUE with 6GB of G.Skill PI Black DDR3-1600, HD 4870 X2 3x500GB WD in RAID-5 and my MSI X58 Platinum SLI.

Now my current case.

SilverStone Raven RV-01 BW

Ok, thanks for the information.

Actually I did speak to thatguy from incrysis from he told me that its either power or overheating.

Btw, isn't my ATI 4890 OC card more power hungry as a whole thanthe two8800 GTS in sli mode??

I know my power supply is most probably crap, I mean I am lucky to be able to use it for over a year and more importantly I am really lucky that it did not explode. Cos I only just recently found out that cheap no-name power supplies blow up.:|

But I just ordered yesterday the corsair 850W PSU.http://www.ebuyer.com/product/152604# It will arrive in 5 days time.

Do you reckon this would be good? I know some people have told me that it'll be ok. But I am still worried whether my PC may shut down even with the Corsair 850W PSU.:o But I hope and pray that it won't shut my PC down when I startplaying Crysis!!!

It will be an emotional breakdown for me if it happens again with the new PSU...:cry:

BLaZiNg_SPEED

HD 4890 OC, can't draw more then 250 watts at max I would say.

It can draw up to a theoretical 300w, but most video cards AND motherboards don't supply a lot of power through the PCI-E slot.

A PCI-E 1.0 slot can supply 60-75w max.PCI-E 2.0 slot 150w Max. PCI-E 6-Pin Power Connector - 75w Max. PCI-E 8-Pin Power Connection - 150w max

Most video cards don't draw their power from the motherboard since it is easier to just draw it from the PCI-E connectors.

Still, you only had about 8-9 Amps left for the rest of your system. That isn't a lot when you look at it. Thats 108 watts of power for the CPU, motherboard, RAM, hard drives and optical drives.

Typical HDD uses 6.5-7w at idle now with up to 12-15w at usage. Thats a whole AMP right now. CPU? A lot of dual cores are some where between 125w(for older ones) and around 65-90 watts for newer ones. 65 watts + a single HDD at load. you've already used up 77 watts from your little amount of 108 watts.

There isn't much power for anything else and you still gotta power the motherboard and the RAM.

Power Supply: http://www.newegg.ca/Product/Product.aspx?Item=N82E16817341017brandontwb

They stopped selling that power supply.

If you got the money for it. YOu could get this power supply.

http://www.newegg.ca/Product/Product.aspx?Item=N82E16817139005

It's $90 off with free S&H.

Everything else looks good.

Also, will Windows 7 BETA work for initial boot? That's what I'll be using.

brandontwb

Yes, you can use that for first install.

Yeah that's the reason I bought a higher watt psu like the corsair 850Wso that in future I can upgrade my graphics card more easily without having to worry about the power supply.

HopefullyI'll give my TRUST 570 Watt PSU on my dads PC, cos he only has 250 Watt PSU but its alright for normal computing:) Or perhaps even sell it..

I guess it just wasn't stable with my card. But I never had a problem with it all year long with my old 8600GT, it ran flawlessly since 8600GTwas less power hungry.

BLaZiNg_SPEED

Okay, first of all games do NOT determine the amount of wattage you need in a PSU. YOUR EQUIPMENT DOES.

Second, your Trust 570, can only do about 24-27 amps, from what I've read. That only leave about 8 to 10 amps for the rest of your PC with your HD 4890 OC. NOT going to cut it.

Trust is a CRAPPY PSU manufacturer. They are meant for the normal PC user, those who use $20 dual core with a $20 mobo and $20 ram and $20 video card.

It's a $50 PSU meant for $20 crappy components.

Third, that guy at "incrysis" had TWO 8800 GTS 512MB which draw about 160-170 watts EACH. At 170 watts each, thats 28 Amps. The guy only had 35 Amps on his +12v Rail. Once you start talking about OC'ing, you lose a lot of power.

If you put to much voltage in your RAM it'll eventually fry the RAM or even the motherboard.

If you put to little, it won't boot, but 1.5 v is the minimum you can go and DDR3 requires 1.5v minimum to boot.

You could easily do about 1.6-1.7v at DDR3-1333 with maybe 7-7-7-19.

The faster the RAM goes, the more voltage you need for lower timings.

If you want to be on the safe side though.

1.6v to 1.7v @ DDR3-1333 @ 8-8-8-21

The maximum RAM voltage for your motherboard is 2.2 volts, minimum is 1.5 volts. So 1.9 volts is in a safe range. Some of the older DDR3 RAM, when it was first coming out, required up to 2.3v for speeds rated at DDR3-1600.