PC Powering on but Not Booting Windows.

CaseyCorrupted

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Jul 20, 2014
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I apologize if my post ends up sounding more like word-salad than an actual inquiry but here goes.

TL;DR ver.s below the wall of text.
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A little over a month and a half ago, I ran into a strange booting error. My PC would power on, but Windows would not do its thing. I had to power off the machine by holding down the power button. After waiting a few seconds, I tried again and it booted just fine. I thought I was in the clear until the next day when the problem reared its head again.
This time I had to try multiple times(at least 3) for my PC to boot up.

After that, it worked fine for over a month, save for one instance where the error occured just once.

However, yesterday the problem returned, only this time I could not get it to work at all. I googled the problem on my phone and learned that it was potentially a RAM issue - so I removed the RAM(2x4GB) and powered on the machine - I was greeted with the sound of a continuous series of beeps. So, going by what I'd read I was able to reason that the problem was with the RAM. I tried moving it around to see if that'd help - it didn't. So, I decided to check if it was just one of the sticks causing me trouble. I removed one and my PC booted up just fine(just to make sure that was the problem, I reinserted the other stick and no matter how many times I tried, Windows would not boot)!

I was relieved. Until I had to power on the machine again today when the error returned. I had to retry to process just once to get it to work that time, but a thunderstorm interrupted my workflow, and I had to shut off my rig(just in case - the lightning was pretty close). When I powered it on a few minutes ago, the problem was there again, but I eventually got it to work.
I think it ~MAY~ also be related to another issue that sometimes happens when entering sleep mode - sometimes Windows crashed to a BSoD, but I've found no impaired functionality because of it.

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My PC will power on, but Windows 7 will not boot. Based on some articles I've read, I've been able to reason that it's potentially a RAM issue - but even after removing the most affected RAM stick, the problem sporadically returns.
I also think the problem could be related to BSoD occurrences when putting the PC into sleep mode.

Any help would be appreciated!(Once again, I'm sorry if I didn't make sense. I've just had an unpleasant afternoon.)

PC Info:
HP Pavilion p7-1233wb
Windows 7 64Bit
8GB RAM(working off just 4 atm)
AMD A8-5500 APU with Radeon(tm) Graphics clocked at 3.2GHz
RAM info:
DIMM # 1
SMBus address 0x53
Memory type DDR3
Module format UDIMM
Manufacturer (ID) Ramaxel Technology
Size 4096 MBytes
Max bandwidth PC3-12800K (800 MHz)
Number of banks 8
Nominal Voltage 1.35 Volts


(Let me know what else I need to provide)
 
When you press the power switch on the tower.
The board in fact does more than you think,
Some boards test the three power phases provided by the PSU.
the 5v+ 12+ and the 3.3v+

If one of the three power phases is bellow what the board needs it can result in a non post.
What you should do is check what the memory modules you have run in voltage and speed also.
Then you should check if both are being set or detected right in the bios section of the board.

If the settings from the memory sticks themselves do not match what the bios is detecting then you should manually set them in the bios and save the settings.

It is quiet common for a system not to post because the memory stick speeds in the bios along with the voltages required are wrong.
While your in the bios you should also have a menu where it should display all the current voltages of the three power phases if on any of them they seem low it can also lead to a system that powers up to a point but does not post properly to the point of loading windows.
 

CaseyCorrupted

Reputable
Jul 20, 2014
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4,510


I tried to access my BIOS, but I wasn't even presented with the option. I did however run a Windows Memory Diagnostic tool that said my memory was fine.

On a whim, I reinstalled my other RAM stick, and calling back on some info I read in an article earlier, I unplugged all USB input. . . and everything booted up.

Could it actually just be a USB error? Maybe they're suddenly drawing too much power during start up for some reason?