First time build gone wrong and I need help

I have tried that before with the cpu and one slot of ram in. Still no post and no beeps. I'll look in my motherboard manual

According to my motherboard manual my ram cannot be registered dimm or ECC dimm, but my ram isn't ECC and is unbuffered, so it passes those tests. Could it be possible that because my ram needs 1.65-1.85v and that most motherboards have a default of 1.5v that that could be the problem? If that's the case how can I manually change it? Also could my ram's timing be off?

Edit: I have new information for some reason my computer will only start with the 20 plus 4 pin main power connector and it won't start with the 4 pin 12v power connector for the cpu. The only way it turns on is if I put in the 20 plus 4 pin main connector in first and quickly turn it off and put in the 4 pin 12v cpu power connector. Could my psu be the reason my computer isn't posting? But as I have said before I have tried using the other power supply so that wouldn't make sense.

That shouldn't prevent your system from posting.

I'm not sure I follow what you're saying. You need to have both the 20+4 pin connector and the 4 pin CPU connector plugged into the board.

Also, could you post the exact specs of your system.

The 4 pin connection is for CPU power, atleast from what I understand. The fans and everything else start to run (except maybe the hard drive, can't tell). Also when I say starting the computer I mean the parts are receiving power. If I plug in the 4 pin cpu power connection then the system won't receive power, but I have tested another PSU with the system and it worked with the 4 pin connection plugged in, but I got the same results, so even though the PSU might have gone bad it's not the main culprit for why my system won't post.

Specs:
AMD Athlon II X2 250 Regor 3.0GHz Socket AM3 65W Dual-Core Processor Model ADX250OCGQBOX
BIOSTAR TA790GXB3 AM3 AMD 790GX ATX AMD Motherboard
RAIDMAX HYBRID 2 RX-530SS 530W ATX12V V2.2/ EPS12V SLI Ready CrossFire Ready Modular LED Power Supply
SAPPHIRE 100283L Radeon HD 5770 (Juniper XT) 1GB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card
Rosewill Blackbone Black Steel / Plastic ATX Mid Tower Computer Case
HP 24X Multiformat DVD Burner Black SATA Model 1270i LightScribe Support
HITACHI Deskstar HD31000 IDK/7K (0S00163) 1TB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive
A-DATA Gaming Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333G (PC3 10666) Desktop Memory Model AX3U1333GB2G8-AG

All items are retail if that makes a difference

Another thing to add is that when I do luckily get everything powered up with the cpu power connection in is that when I shut off the power (because for some reason holding down the power button for a while doesn't shut it down) the on-board debug led's both come on saying the system is fine, but it just flashes before the power completely shuts off. I have so many troubleshooting issues. Also my cpu gets hot without the cpu power connector plugged in. Don't know what this means. Any help is appreciated.

Well I think it is the motherboard now because I took the motherboard out and physically examined it. I looked on the back and spotted some things on where the cpu is placed. It looks like just random gray material, maybe the thermal paste? Anybody agree?

You probably don't have the HSF on correctly.

I've followed this thread since the beginning, and you have no business putting your hands inside a computer, period. I know you'll think that's not constructive, but that doesn't make it any less true.

One thing Biostar does not mention in its CPU support list is the BIOS versions required to support the different processors. Your CPU is definitely compatible with the board but could there be an off-chance that a BIOS update is required?

Hopefully others can shed more light on the issue.

Yeah, you could try starting from the beginning - take everything out from the motherboard, then put some new thermal paste on the CPU and make sure the fan is attached corrrectly and that there is a good contact between them.

That's a little harsh don't you think... everyone has to start from somewhere!

I'll try that and CaptainCranky stop being cranky.

Took my cpu fan off and it appears that the paste is dried up. I guess I'll apply some more after I go buy some. I'll return with the results.

Put new thermal paste on and the parts will power up with only the 20 plus 4 pin main connector in, but with the 4 pin cpu connection in the parts receive power for a split second then shut off.

Also when I say the cpu gets hot I literally took off the cpu fan and felt if the processor got hot and it did.

Then you probably still may not have the HSF fan on correctly. Too much thermal compound is as bad as too little.

What you're telling is that when you hook up the CPU power, ("the 4 pin"), the system quits. If it's not a problem with the HSF, then you've damaged the board, CPU, PSU, or all three.

My original statement "you have no business putting pour hands inside a computer", while you don't agree with it, is nonetheless factual.

Less than one percent of shipped electronics parts are defective when shipped. Yet, (I think) more than 5% are returned as "defective".
People returning things as "defective", make prices go up, not to mention causing the rest of us to wade through pages and pages of their of their bogus, "reviews" at Newegg. It seems that everybody that can't get something to work also has "high technical ability". I tend to equate "very high technical ability" with a "massively inflated ego", and nothing more.

Now, as harsh as my comments may seem, I really do want your computer to work. I think you haven't "rehearsed" or researched enough before trying to do this task, and you're paying the price.

I further believe that you need more help than you can hope to receive this, or any other forum. There are certain skills involved with the assembly of electronics equipment, and they're not instinctive, they need to be learned. Most of us tend to take this for granted, since we've built many machines. I've made fatal mistakes in servicing my computers, but that said, I also know when I've made them, and that goes a long way toward not repeating them. So, someone who doesn't know that they've made a mistake in the first place, is in deep caca, IMO.

A friend that can give you hands on assistance, might prove to be your salvation.

That said, I'm sure everybody here will continue to assist you in any way we can.

Okay well I don't think the problem is my cpu fan because I don't see any evidence of the thermal compound on the motherboard, but lets hypothetically say the cpu fan is working perfectly fine what could the problem be. The fans and sata devices are getting power and the parts seem to get power. However I know my power supply might crap out when I put the cpu connection in I have tried another psu and it has not worked. This leaves the cpu which does get hot with the main connection in and I haven't tried it with the cpu power connection in because the system shuts down immediately once turned on. This leads me to believe this is a cpu problem. I had my friend who is pretty good with computers and he agrees that because the fans and other devices receive power that the motherboard should be good, but the power supply is also at fault too.

So my options are to buy: Cpu and power supply or Cpu, motherboard and power supply. Should I just buy all three to be safe?

And also Captain I am sorry for driving up prices and believe me I have researched. I waited 1 month before buying the parts and making sure everything was compatible and I was watching tutorials on how to build a computer. I even waited a week once the parts arrived for my experienced computer building friend to come and help me make sure I didn't screw anything up. I am just pulling my hair out trying to find out why this is happening to my computer because my friend just thinks it has been "bad luck". Again if anyone has any useful information on my problems then I would truly appreciate it.

First, we need to define "hot". A running but idling CPU should only give off a slight "warmth", (at the HSF) and not be anything you would call hot. For this to be true the CPU HSF must be on correctly, with the correct amount of thermal compound. If you substitute the PSU and the system still does the same thing, it makes sense that it's not the PSU. (At least to me). Unless of course you broke the second PSU by putting it into a snorted system. Please check the position of the case standoffs, if there are no solder "lands" around any given hole in the mobo, don't put a standoff post there.

If this did the exact same thing when the mobo was out of the case, then you may have done static damage to some components. Another possibility is that the CPU is not in its socket correctly.

The CPU gets hot and I tested this by physically touching it when I turned on the system. I heard about this on another forum to see if the CPU is actually working. When the fan runs the CPU doesn't get fried and it looks like no damage is being done so I don't think it is that. Also during building I was wearing an anti-static bracelet made by Rosewill, but I suppose I still could have done static damage to some components. I have checked the standoffs and all of them fit in a corresponding motherboard hole for screwing. Also I have reseated the CPU many times making sure everything fits and then carefully pulling down the lever until it is secure. So now it looks like the main culprit is the motherboard I presume?

The second psu was from a dell system and it runs 375 watts, but keep in mind I did not use my high-end graphics card I was using integrated graphics.

If the Dell PSU actually delivers 375 watts, it would easily run any board with integrated graphics. Still, it needs to go into another machine to see if it survived the install into yours. Heck, with a 65 Watt CPU, a good 250 watt supply would probably boot and run.

You could be in that "elite" one percent that received a defective CPU or motherboard, at this point it's getting hard to tell.