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Crosshair V Formula-Z fail to post

Level 7
Hello all,
I have spent the last few hours searching through posts and have not been able to find a solution to correct my build.
The back ground on it: 3 months old (been running fine until yesterday)

-Crosshair V Formula-Z AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX
-MD FX-8150 Zambezi 3.6GHz (3.9GHz/4.2GHz Turbo) Socket AM3+ 125W Eight-Core Desktop Processor with Liquid Cooling Kit FD8150FRGUWOX
-EVGA SuperClocked+ 03G-P4-3663-KR GeForce GTX 660 Ti 3GB 192-bit GDDR5 PCI Express 3.0 x16 Video Card (2-SLI)
-G.SKILL Trident X Series 32GB (4 x 8GB) 240-Pin DDR3 SDRAM DDR3 2400 (PC3 19200) Desktop Memory Model F3-2400C10D-16GTX
-Thermaltake Toughpower Grand TPG-850M 850W ATX 12V v2.3 & SSI EPS 12V v2.92 Power Supply

Symtoms-Upon powering on, system fails to post. All LEDs are on, monitor and connected USB devices do not activate. Q Code has been 'A0', however I have also seen '05' and '10'. I have already tried reflashing the BIOS through ROG Connect, no change.

Any ideas or suggestions? Any would be greatly appreciated!

Level 15
Welcome to the ROG forums, Sourmug.

I have a few questions for you before we begin.

1. Were all the components new?
2. Was your system overclocked in any way?
3. Please power up your system again and look beside the 24 pin power connector for 4 QLEDs. Do any of them stay lit?

Level 18
Does the Z have the led's near the power block as well as the read out ? As @Chino has asked, if so, are any lit?

Have you checked your Sata settings in the bios ?
Do you have a SSD ?

Last but not least, have you tested your PSU for failure ?

*Note: I do not find code '05'. It is not listed.
A0: Refers to: Ide initialization is started
10: is PEI core is started [for those without a manual].c.

use one stick of ram in 3rd bank and take cmos battery out for atleast 30 minutes
- Asus Maximus, 2.4 4core - 3.6ghz(o.c), raid5_6hdd, 3gb Crucial, HD 3870(o.c), Air Cooled, PSU-750w; Nzxt Apollo, 5-5-5-12-2-45-6-3 | 8-3-5-4-6-4-6 Republic of gamers !!!

- Asus Crosshair Formula Z, 4.0 8core - 4.4stable ; FX-8350 8core , g-SKILL PC19200 cl9 16gb, HD 6950x2, H100 Hydro+Air Cooled, Cm Storm Trooper, PSU1000w FATAL1TY, OCZ Vertex3x3

Level 40
Sourmug any update on progress?
To help us help you - please provide as much information about your system and the problem as possible.

Level 7
Having issues with the account I used prior (different problem, different forum).

1. yes
2. yes, using the Easy Overclock in the program suite
3. No. However the vga will flash when I hit the Go Button

No error lights on-minus Q Code
Can't get to bios to check
no SSD onboard
I'll be checking the PSU today, I have my older one from my last build I will plug in and see if there is any change
The '05' code had me vexed, I checked the manual and internet for it, but no luck.

Northern Sun-I'll give that a shot today after work, but will that work with dual channel memory?

I'll post another update this evening. Thanks for the tips.

Level 18
A few more thoughts/questions.

Do you have a speaker attached ? [for beeps?]
Are you using a ps2 keyboard?
Have you checked all connections, gpu seating, memory seating, power block?
What was the power state at last use? sleep,off ?

MoBo speaker is attatched, no beeps
I have a usb hooked up now, but I do have a ps2 I can hook up
All connections have been checked and reseated.
Last thing that happened was the computer was booting up and was on a screen for applying windows updates. Blue screen. And then here I am. But prior to that it was off.

Level 18
Thank you.
What OS ? Pesky updates. [most bluescreens, not all, most are memory related.]

Can you borrow 'other' ram to try ?
If that psu tests good and other ram brings no joy.
I would try doing a bios reset [using jumper method] .. but oboy.. get'n close to RMA'n time.not yet.but maybe.c.

Windows 7 64. I will have to ask around for some test ram. I wasn't aware that there was a jumper method on the z board.