Member Avatar for dcc

It looks like I'm about to purchase a Asus K8V SE Deluxe motherboard to up grade my computer which has a 300watt power supply, and I'm tying to find out if that will be enough. Are there any other compatability issues that I should be aware of?
I do appreciate the help, I'm slowly but surely getting there. dcc

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For ’s Asus K8V SE Deluxe plus the listed Antec PP-303X300W, the immediate practical checks are simple and concrete: confirm the PSU has the 4‑pin ATX12V CPU power plug that the board requires, and read the label for the +12V rail continuous amperage. A stamped “300W” number alone doesn’t say how much current is available where it matters most.

A quick way to estimate real needs is to list the system parts (exact CPU model, any discrete video card, number of HDD/optical drives, and case fans), find each part’s typical wattage or TDP, add them, then add 25–30% headroom for stability and future changes. Convert the portion that runs on +12V into amps with A = W / 12 and compare that to the PSU’s +12V rating on the label. If the label shows low +12V amperage relative to the calculated demand, that’s the limiting factor even if the total watt number seems adequate.

Use voltage monitoring and a meter to check real behavior: motherboard sensor readings are useful for a quick look (as mentioned by ), but a DMM or a dedicated PSU tester gives the most reliable numbers. Target ATX tolerances: +12V within ±5% (about 11.4–12.6V), +5V and +3.3V also within ±5%. Watch for voltage sag under load, loud fan noise, bulging or leaking capacitors, or unusual heat — those are signs the unit is aged or stressed.

The key point from , and still holds: brand and quality matter more than headline watts. For any planned discrete graphics card or multiple additional drives, prefer a well-reviewed unit with a clear continuous +12V amperage rating and built-in protections rather than relying on the old 300W label.

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Member Avatar for ian_tec234

well 300 watts of what brand that is? some cheap power supplies claim they are 300 watts but they are really not. i guess with antec 400 watts or better would be good. if you have a new video card that will eat more power. pair it with a couple of drives that would be more. so it really doesnt hurt to invest on better psu:)

Member Avatar for dcc

I pulled the cover and my power supply is a Antec PP-303X300W, does that help? dcc

Member Avatar for JjEjFjF

It looks like I'm about to purchase a Asus K8V SE Deluxe motherboard to up grade my computer which has a 300watt power supply, and I'm tying to find out if that will be enough. Are there any other compatability issues that I should be aware of?
I do appreciate the help, I'm slowly but surely getting there. dcc

Nobody ever seems to have a direct answer for that question.
I have an Antec Sonata case that came with a 380 watt psu.I have an Asus P4c800-E deluxe mobo , 9800 pro ,3 case fans,2 hard drives , and 2 optical drives. I often wondered if the psu was suppling enough power.
This particular psu regulates its fan speed according to the heat it produces.Of course the more power being used , the hotter its gonna get.
Anyhow , your Asus motherboard should come with the program pcprobe.
With pcprobe i figured that if the voltages all stay within the norm and the psu fan is not running full blast , then things must be ok.
Good luck.

Member Avatar for ian_tec234

well i do guess your power supply is ok. but it wont hurt if you invest on higher capcity ones. antecs are real good

Member Avatar for delta6six

I have just bought an Antec Sonata case and Asus P4c800-E deluxe mobo. but I had no problem to fit it on I/O shield side on board in my Antec sonata case .becuse the cutting on the back of sonta case is not acording as the parallel port other ports.

please help me how you have fitted your asus P4c800-e deluxe mobo in antec sonta case.

for your ready referance i am useing 480 watt psu not 350 watt that come with the case you can choose 430watt.but 480 watt is supreb .

Member Avatar for delta6six

I have just bought an Antec Sonata case and Asus P4c800-E deluxe mobo. but I had PROBLEM[/B] to fit it on I/O shield side on board in my Antec sonata case .becuse the cutting on the back of sonta case is not acording as the parallel port other ports.

please help me how you have fitted your asus P4c800-e deluxe mobo in antec sonta case.

for your ready referance i am useing 480 watt psu not 350 watt that come with the case you can choose 430watt.but 480 watt is

Member Avatar for Zachery

Your always want as much power as you can afford, 300 watts might not be enough for a new high end system, 400 and 500 and even 600watt power supplys are not uncomon.

I'd suggest anything above 400 for now :)

I've got a 550 in mine.

Member Avatar for djrivera1

Get antec 550 True power or 480 will do the job Remeber video card Nivida drain a lot of power. Cheap power supply can cause fires and damaged hardware don't buy a cheap PSU never deliver what they say they will lack short circuit and over voltage protection. Here proof click on this link
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