AMD PHENOM II X2 555 AM3 BLACK EDITION

paradisiac · 22 Feb 2011 at 19:57

oweneades said:
This is a known issue. I think there is a big thread about this over at overclock.net.

Unfortunately I have an external temperature gauge so I can't really help here.

do you know of any apps that do work?
OCCT also refuses to show temps

oweneades · 22 Feb 2011 at 20:04

Have a look at this thread over at overclock.net

response in thread said:
As to the OP, Speedfan will still read your CPU socket temp and you can use that. Socket temp is generally a few degrees above core temps. I just try to stay below 55 to 60C.

Thread can be found here:

http://www.overclock.net/amd-cpus/757864-phenom-ii-x2-555-unlocked-temp.

paradisiac · 22 Feb 2011 at 20:08

ok thanks

paradisiac · 22 Feb 2011 at 20:12

nope speedfan just comes up with a not responding error.
Everest seems to pick up temps though.

EDIT : now even everest isnt showing temps. although prime95 wont run core 3, and WIE keeps crashing, so disabled the core and see how stability is.

paradisiac · 22 Feb 2011 at 20:47

should it still show up as an X4 even though only 3 cores are enabled?

paradisiac · 22 Feb 2011 at 20:54

cores 0,1,2 are all enabled and its run prime95 for 15mins and temps seem to level out at 59C (if everest is right) will give it 30mins if thats ok then will do some benchmarking, it did pass WIE (which i know isnt acurate scores but find its one of the best tests for stability as the slightest flaw seems to crash it) and scores all jumped up.

oweneades · 22 Feb 2011 at 23:09

paradisiac said:
should it still show up as an X4 even though only 3 cores are enabled?

Yes, mine shows up as a Phenom X4 B55 despite only having 3 cores enabled.

paradisiac · 22 Feb 2011 at 23:50

it now seems to be running stable as a tri-core 3.8GHz phenom

all i have done is unlocked the extra core and upped multi to x19, i did try to go for 4GHz before i unlocked any cores and that wasnt stable at all. the lack of ability to monitor temps well scare me from doing an overnight prime95 run though, normally i use OCCT as that will stop when it gets to a preset temp, but that refuses to load once the chip is unlocked.
the vcore is on auto, it goes from 1.408 to 1.424 underload, i believe this is the max safe voltage for this chip? if so, is there any way of getting to 4GHz if just upping the multi to x20 doesnt prove stable?

paradisiac · 23 Feb 2011 at 09:08

ok, sorry for the amount of pics, but i dont really understand all the scores so thought you might be able to give advice as to whether the gains seem about right.

SUPERPI:
stock

Tri-Core 3.6GHz OC

Tri-Core 3.8GHz OC

Tri-Core 3.9GHz OC

HyperPI
Stock

Tri-Core 3.6GHz OC

Tri-Core 3.8GHz OC

Tri-Core 3.9GHz OC

Fritz
Stock

Tri-Core 3.6GHz OC

Tri-Core 3.8GHz OC

Tri-Core 3.9GHz

Passmark 07
Tri-Core 3.6GHz OC

Tri-Core 3.8GHz OC

Tri-Core 3.9GHz OC

Cinebench
Stock

Tri-Core 3.6GHz OC

Tri-Core 3.8GHz OC

Tri-Core 3.9GHz OC

Cant seem to get it stable at 4GHz though

HeX · 23 Feb 2011 at 09:21

3.9GHz Tri is lovely, nice work

Especially on stock cooler, you might find that with a better cooler/lower temps 4GHz will be achievable.

paradisiac · 23 Feb 2011 at 09:24

temps aint the issue, its running at 55-57c in prime now and even lower with everests stability test, so not sure why it wont hit 4GHz, but 3.9GHz Tri seems to be very stable

oweneades · 23 Feb 2011 at 12:39

paradisiac said:
temps aint the issue, its running at 55-57c in prime now and even lower with everests stability test, so not sure why it wont hit 4GHz, but 3.9GHz Tri seems to be very stable

Just luck of the draw probably.

Mine will do 4GHz quite easily yet I imagine 4.2GHz will be much harder to reach.

Given the price though a 3.9GHz Tri core Phenom II is certainly good value for money.

mmj_uk · 23 Feb 2011 at 12:43

Had mine at 4.2ghz on water since christmas solid as a rock, the CPU northbridge seems a bit crappy though perhaps that's why it was sold as a dual.

Uriel · 23 Feb 2011 at 13:36

If you're over 55 celcius, temps may be an issue. Get the temps lower and it might clock higher without increasing voltage.

paradisiac · 23 Feb 2011 at 14:02

its good up to 70c i thought, and it only does it on stressing it, normal use it dont go over 47c

Uriel · 23 Feb 2011 at 14:43

For most AMD CPUs you will be given a range for maximum operativg temperature. It usually starts at 55°C and goes up to 62° for Phenom II X4s and 70°C for X3s and X2s.

The lower figure seems to be an instability theshold and in my experience it's really hard to fully stabilise Denebs over 55°C. I believe that the second figure is a safety limit.

Phenom IIs love the cold. Seen some published results for a C3 Deneb on LN2 of 6GHz+ on only 1.4v.

Example of an X3 spec with the limits shown: http://www.cpu-world.com/CPUs/K10/A... Edition - HDZ740WFK3DGI (HDZ740WFGIBOX).html

paradisiac · 27 Feb 2011 at 19:53

well its been running fine for a few days now @3.9GHz Tri-Core, and on the games i thought were running nicely on my old cpu, seem to be a lot responsive, im not sure if this is actually real or just me thinking it, but i seem to be getting better scores and doing better since upgrading the chip so maybe it does make a difference. very pleased with it overall, will look at getting a nice cooler for it so i can get the temps down if you think it should be running nearer the 55C

paradisiac · 6 Mar 2011 at 14:39

Uriel said:
If you're over 55 celcius, temps may be an issue. Get the temps lower and it might clock higher without increasing voltage.

i think you might be right, prime95 was getting it close to but not to the 70, but IBT pushed it over the 70, and this was when i dropped the clock to Tri-Core 3.4GHz, so i fear temps might be part of my issues, although i dont think my particular chip will go to 4GHz on this board with this ram

but the high temps could offer an explanation as to why i was getting issues in some games.

paradisiac · 11 Mar 2011 at 07:43

sorry to reserect this again, but when it says 1.4v is the max, does this mean it is the max, or would going over it a little be ok?
thing is, like i said im stuck at 3.9GHz and wondered if maybe it just needs a little vcore bump, but i have gone up to 1.4v already.

oweneades · 11 Mar 2011 at 12:48

paradisiac said:
sorry to reserect this again, but when it says 1.4v is the max, does this mean it is the max, or would going over it a little be ok?
thing is, like i said im stuck at 3.9GHz and wondered if maybe it just needs a little vcore bump, but i have gone up to 1.4v already.

I have read that the general consensus is:

1.4v max on stock cooler (+0.02v should be fine though)
1.5v max on decent aftermarket air cooler
1.55-1.6v absolute max on water.

There may be more room at the top end but with the stock cooler I wouldn't want to push anymore than 1.4v for long term use.