[dreammariner]

Hi!
I need help with my Phenom II x2. I manage to unlock all 4 cores, windows boots fine, all regular processes work fine.

When i attempt to run games it instantly becomes extremly blocky and flickers with colors. When I bring it back to dual core, and even give it a 40% overclock this does not reoccur. Do I simply have faulty cores?

When I run amd overdrives stability test it finds calculation errors.
Should I increase vcore voltage? CPU NB voltage?

Please help, I want my quad power!

 

[rocker22dallas]

what mobo are you using?

also often times chip manufacturers will build a quad core, then one or 2 cores will be faulty, so they lock them down and sell them as a dual core. you may have a faulty core.

also if you do not have a good enough power phase on your board, then the heat and extra power needed to unlock may destroy your chip, and your board. please fill in your system specs from within "userCP"

 

[dreammariner]

Filled in applicable specs in my profile:
COOLER MASTER Silent Pro M600 RS-600-AMBA-D3 600W ATX12V V2.3
G.SKILL 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800
MSI N560GTX-TI Twin Frozr II/OC GeForce GTX 560 Ti (Fermi)
ASUS M4A87TD EVO AM3 AMD 870 SATA 6Gb

 

[dreammariner]

The only things I've tried are bringing my multiplier down to extreme lows, and bumping up vcore voltage slightly. Searched for days and havn't found anyone else with my issue.

 

[rocker22dallas]

that board has an 8+1 power phase, which should be enough, but im sure a mobo guru on the site would know more about it than me.

my guess is it is just a faulty core. experiment with unlocking alternate cores (1=on 2=on 3=off 4=on) like that. but try different combos and see if you can get it stable. you may only be able to unlock it to an x3, but that is better and you will still have a better cpu

 

[amd-dude]

U may have 1 faulty core, you should try activating different cores and see which ones give u the instability...the 555's are notorious for having atleast 1 good core.

EDIT: refer to my guide in my sig on how to core balance.

 

[dreammariner]

I appreciate the attempt, thank you

I attempted also to unlock various cores in that matter. Yet if memory serves me correctly it didnt seem to matter when cores I left unlocked. I'll have to double check this, but I think I tried to even just keep core 0 and 1 unlocked and it still did it! I had to disable core unlocker all together.

Are your original cores necesarily 0 and 1, or can it be random depending on which cores they deemed neccessary to lock?

 

[dreammariner]

Quote:

Originally Posted by amd-dude;13036139
U may have 1 faulty core, you should try activating different cores and see which ones give u the instability...the 555's are notorious for having atleast 1 good core.

EDIT: refer to my guide in my sig on how to core balance.

Thanks for the guide I'll read through it now. I will attempt isolating cores again when I get home and repost.

 

[allikat]

You may need to update the BIOS on the board, it may well be a bug in the unlocker code which may have been already fixed. Asus are pretty good at that.

 

[dreammariner]

That requires a floppy drive correct?

 

[B NEGATIVE]

run prime95 till it fails,it will tell you what core is faulty,bump the CPU voltage up till prime will run for a couple of hours on blend and small ffts without errors. Stay below 1.5v MAX. if the core is persistantly faulty,lock it up and 3wheel it....
if your dead set on a quad,consider a fan pointing at your mosfets as your cooler will not divert air like the stock unit.

 

[dreammariner]

Will try in an hour when I return from work.

 

[dreammariner]

What is a mosfet?
I have 5 120 mm fans
one on the side pointing towards my motherboard
one in front, one in back; and two on top for exhaust

 

[B NEGATIVE]

Quote:

Originally Posted by rocker22dallas;13035957
what mobo are you using?

also often times chip manufacturers will build a quad core, then one or 2 cores will be faulty, so they lock them down and sell them as a dual core. you may have a faulty core.

also if you do not have a good enough power phase on your board, then the heat and extra power needed to unlock may destroy your chip, and your board. please fill in your system specs from within "userCP"

None of which is strictly true...Cores are determined by a binning process,small performance issues determine what clocks ie. 3.2 3.3 etc,these also determine whether it will be a quad or a dual from the same die. All x2 and x4 are the same die so a 3.2 dual will have more small issues than a 3.4 quad,for instance a core is lagging behind the rest or is less stable at higher clocks. Very rare they are actually faulty beyond use..

if in doubt,HIT IT WID DA MEGGA VOLTZ!!

chances are mosfets will die before the proc but mosfets dont die alone......

 

[B NEGATIVE]

Quote:

Originally Posted by dreammariner;13036925
What is a mosfet?
I have 5 120 mm fans
one on the side pointing towards my motherboard
one in front, one in back; and two on top for exhaust

small black squares to the left of your cpu socket,there will be a larger row of black squares in front of them...just get air to the top left corner of your mobo and you will be good

 

[dreammariner]

Roger that
whats the maximum voltage I should hit with?
1.55?

 

[zamdam]

Call me crazy. but are you running triple channel memory for an i7 in your amd setup..??

Not that it would matter, but try to run just two sticks of ram instead of 3.. Kinda weird to me.. Or get another stick and run 4 sticks..

 

[dreammariner]

whats wrong with 3 sticks of 2 gb? Im confused

 

[dreammariner]

ouch. " The G.SKILL F3-12800CL9T-6GBNQ Desktop Memory comes in a triple-channel configuration designed specifically for Intel's new Core i7 processor/X58 chipset-based platforms. " It is, I didn't notice I had it in a combo deal. Is this a problem? It seems to work, should I try returning it?

I did a quick search on it, it doesnt necessarily seem to be an issue. It just doesn't use its full potential. Correct me if I am mistaken

 

[B NEGATIVE]

pull one stick out and make it dual channel,keep the third if one dies on you

well spotted zamdam