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**wazza300** · 08-14-2012, 07:20 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

are you using xmp for your memory? cold boot issues usually point to memory voltage/settings not right,with the mb being so new you simply might need to wait for the bios's to catch up with ironing out the bugs ect

**stasio** · 08-14-2012, 08:47 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

No idea really.I running UP5 almost a month and no such issue.
Maybe try to update your Backup BIOS.
Your memory is 2x4/4x4GB,running stock or?

**Acebmxer** · 08-14-2012, 09:16 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

Same here no boot loop issues. The UP5 TH seems to be more stable the the UD3h.

Also make sure backup bios matches the main bios. This can be done by either booting to bios flip the switch and enter qflash and flash the bios or by holding ALT+F10 at boot up.

**BelowAverageIQ** · 08-14-2012, 03:06 PM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

Gentleman,

Thank you for your replies. I am only running my memory at stock as such with XMP profile 1 selected, thus running at 1600Mhz. It is Corsair Vengeance, 4 x 4Gb.

I did not know that the 2nd Bios has to be the same as the primary. Should I put the F6x Beta Bios on the backup then?

I look forward to your replies. I really appreciate your help.

Cheers,

Rob

**Acebmxer** · 08-15-2012, 12:15 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

As for the backup bios, It shouldnt need to match the main bios but the board seems more stable when it does. X58 it did not matter, but p67/z68 and z77x seem to need or like both to match.

**BelowAverageIQ** · 08-15-2012, 12:58 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

Acebmxer,

Thank you for the reply. I went back to the F4 bios on both the primary and secondary position. Power cycle after loading the bios, cleared CMOS and loaded setup defaults.

Hopefully it fixes the problem.

Cheers,

Rob

**BelowAverageIQ** · 08-15-2012, 02:36 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

G'Day Crew,

Just an update, I re-installed the official F4 Bios on both the primary and backup bios position. Allowed for power cycle/shutdown after both. Cleared CMOS and then loaded setup defaults.

Ensured ALL connectors were secure including graphics, memory and power.

Installed new memory, same type though.

Booted ok initially. Browsed the net, sent some emails etc.

Shutdown, removed power for 10 minutes, powered on and got the Boot Loop. It cycled 3 times instead of usual 5.

Sigh. Not happy.

Cheers,

Rob.

**Acebmxer** · 08-15-2012, 08:17 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

I think it may have to do with the 2600k cpu. I think most people with 2nd gen I7 cpus were having boot issues on z77x but cpu works fin in p67/z68. Maybe someone else can comment on that.

**wazza300** · 08-15-2012, 08:25 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

what dram voltage and cpu vtt does xmp set for profile 1 settings? tried testing with only one ram stick installed? see if it loops from cold with one stick

**sin0822** · 08-15-2012, 10:55 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

does the POST code say db at any time?

**BelowAverageIQ** · 08-15-2012, 03:59 PM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

G'Day Crew, once again THANK YOU for your time and replies :)

I appreciate the 2600K is a Gen.2 CPU and if I knew that buying a 3730K etc will definitely fix the problem, I would buy it immediately. I may do this, 1. To eliminate the problem 2. Upgrade it anyway

I have noticed the POST codes, but not noticed if it was or stops at DB before rebooting, sorry. Will confirm shortly.

I have noticed that the XMP profile sets exactly the correct voltage and timings for the Corsair Vengeance memory. I also set them manually to see if that would help. It did not. I also tried a single stick x 4 and it did not help either.
I actually have used another set of identical ram (from sons PC) and it has not helped. Also tried no Primary graphics installed, same same.

I thought that my Corsair AX750 might not have enough power for the system, but have read AND confirmed with Corsair that it should be sufficient for the components installed.

If I have to buy a new board, so be it. Will probably just have to pony up the $$$$ as sending it back to the retailer is ALWAYS a pain, they will test it and find no fault as usual................

**irfs** · 03-14-2013, 11:48 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

Originally posted by BelowAverageIQ View Post

G'Day Crew, once again THANK YOU for your time and replies :)

I appreciate the 2600K is a Gen.2 CPU and if I knew that buying a 3730K etc will definitely fix the problem, I would buy it immediately. I may do this, 1. To eliminate the problem 2. Upgrade it anyway

I have noticed the POST codes, but not noticed if it was or stops at DB before rebooting, sorry. Will confirm shortly.

I have noticed that the XMP profile sets exactly the correct voltage and timings for the Corsair Vengeance memory. I also set them manually to see if that would help. It did not. I also tried a single stick x 4 and it did not help either.
I actually have used another set of identical ram (from sons PC) and it has not helped. Also tried no Primary graphics installed, same same.

I thought that my Corsair AX750 might not have enough power for the system, but have read AND confirmed with Corsair that it should be sufficient for the components installed.

If I have to buy a new board, so be it. Will probably just have to pony up the $$$$ as sending it back to the retailer is ALWAYS a pain, they will test it and find no fault as usual................

Hi mate im also getting these exact same cold boot issues. I thought I was done with em but obviously not just happen to me now. I also have a 2600K this is my 2nd one now. This issue is totally random im on F13a bios. Mobo powers ON n OFF few times eventually powers on & retains overclock. I wish GB would get this sorted.

**irfs** · 03-16-2013, 08:11 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

Originally posted by proJim

We can best help you after you create a detailed hardware list in the System Specs portion of your
forum profile http://forums.tweaktown.com/profile.php?do=editprofile at the bottom of the
profile page or in your forum signature http://forums.tweaktown.com/profile....=editsignature.
Be sure to include brand names and model numbers.

its best to put your full system in signature. This way it helps to see if its certain hardware which causes this issue. Im currently trying memory with XMP disabled with same timing 10 11 10 28 1t and instead of auto voltage which is just under 1.6v ive bumped it up a lil to 1.62v. Does anyone know which ME firmware is built in to bios F13a. The cold boot for me is random usually it will boot no probs and run sweet at 4.8ghz

**irfs** · 04-07-2013, 06:38 AM

Re: Gigabyte GA-Z77X-UP5 TH Boot Loop Issue

Originally posted by irfs View Post

its best to put your full system in signature. This way it helps to see if its certain hardware which causes this issue. Im currently trying memory with XMP disabled with same timing 10 11 10 28 1t and instead of auto voltage which is just under 1.6v ive bumped it up a lil to 1.62v. Does anyone know which ME firmware is built in to bios F13a. The cold boot for me is random usually it will boot no probs and run sweet at 4.8ghz

I think ive sussed the cold boot issue. Ive disabled XMP. setup memory timings manually upped DRAM voltage to 1.62v. My backup bios is F11 and main bios is what im using F13a. So far not had the cold boot issue. Ive tried ON n OFF plenty times. I hope this cures it for good:)

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