Page 5 of 5 FirstFirst ... 2345
Results 101 to 111 of 111

Thread: High memory voltage on Phenom...

  1. #101
    the jedi master
    Join Date
    Jun 2002
    Location
    Manchester uk/Sunnyvale CA
    Posts
    3,884
    Quote Originally Posted by saaya View Post
    dont think so... atm it looks rather like most of them will work fine but some cpus will under some conditions die or get damaged
    so is it not wise to advise running 2.4V is a little dangerous?

    IMO better to be cautious than takin a worthless risk
    Got a problem with your OCZ product....?
    Have a look over here
    Tony AKA BigToe


    Tuning PC's for speed...Run whats fast, not what you think is fast

  2. #102
    Xtreme Mentor
    Join Date
    May 2007
    Posts
    2,792
    Speaks for itself.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	AOD-.png 
Views:	435 
Size:	49.8 KB 
ID:	69946  

  3. #103
    Xtreme X.I.P.
    Join Date
    Nov 2002
    Location
    Shipai
    Posts
    31,147
    tony, sure, but beeing cautious when raising volts is like a general thing...
    everybody knows that ocing can and will damage your hardware sooner or later depending on how much you oc and overvolt it...

    from what ive heard so far i wouldnt say k10 ocing requires extra caution when using high vdimm... it seems we have only 2 people with dead cpus from high vdimm... and we cant be 100% it was really vdimm what killed them.

    kte, dont tell me that 900mhz mem clock was with anything higher than 333 timings!
    2.9v vdimm with 444 or 555 clocks and only 900mz clocks would deserve some hehehe

    how long did you run 2.9v?
    is the mem still alive?
    is the cpu still alive?
    did you notice any degradation in memory performance?

  4. #104
    Xtreme Mentor
    Join Date
    May 2007
    Posts
    2,792
    Quote Originally Posted by saaya View Post
    kte, dont tell me that 900mhz mem clock was with anything higher than 333 timings!
    That would be pretty easy for that mem
    2.1V 3-2-2-1 1T 900 P35 has been done with ease before.
    how long did you run 2.9v?
    is the mem still alive?
    is the cpu still alive?
    did you notice any degradation in memory performance?
    -30 mins
    -Perfect
    -Perfect
    -Nope

  5. #105
    HACKED!!!
    Join Date
    Nov 2003
    Posts
    171

    The Difference Is...

    The difference is that this over-volting of ram beyond what seems safe now, will kill the cpu and not the ram. What warranty will AMD put on the cpu then? That is the question that makes me wonder and err on the side of caution. OF course all can do as they well please since they pay for the pieces. RGone...

    PS: because I nearly forgot, you can chalk up another phenom death due voltage and extended strain.
    Back and forth from board to board it seems.

  6. #106
    Xtreme X.I.P.
    Join Date
    Nov 2002
    Location
    Shipai
    Posts
    31,147
    kte, wow, fatbody? impressive!
    robert, was it your cpu that died?
    could you post some more details?
    what cooling, what voltages for how long... what mainboard... any symptoms of the cpu/board acting weird or geting unstable before it died? how exactly did it die or is it just unstable at stock now?

  7. #107
    Xtreme Mentor
    Join Date
    May 2007
    Posts
    2,792
    Just some plain el' cheapo Crucial Ballistix Tracer 8500s.

    I'd have pushed them with this arch to see if I can get 675 4-4-4-4 but I can't even get 1066 to work, let alone any further.

  8. #108
    Xtreme Addict
    Join Date
    Jan 2003
    Location
    Sweden
    Posts
    1,248
    To bad 939 cpus is hard to find this theys so i dont want to test if my 24/7 cpu can take low vcore and high vdimm like 4.1v and <-1.1vcore. K8 is not phenom but it still have memcontroler in the core.

  9. #109
    Xtreme Addict
    Join Date
    May 2006
    Location
    Philippines
    Posts
    1,124
    Am ok at the minute am using a phenom on a 790FX board with my ballistix set at 2.3v! 4,4,4,12 1000mhz

  10. #110
    Xtreme X.I.P.
    Join Date
    Nov 2002
    Location
    Shipai
    Posts
    31,147
    Quote Originally Posted by Lastviking View Post
    To bad 939 cpus is hard to find this theys so i dont want to test if my 24/7 cpu can take low vcore and high vdimm like 4.1v and <-1.1vcore. K8 is not phenom but it still have memcontroler in the core.
    in germany you can still find lots of 939 cpus

  11. #111
    Xtreme Mentor
    Join Date
    May 2007
    Posts
    2,792
    Just to update this;

    When a new phenomena arrives, it is difficult to actually understand or assess it because of the lack of experimentation and experience. As time builds, you develop a much clearer picture of the situation.

    I noticed I had a non-booting Phenom like some of you were saying, what you would call "dead Phenom", but I didn't return it even after 3 days although I was about to, rather I experimented and repeated it. It was caused by just going past 626MHz on RAM. Voltage didn't matter whatsoever, I've had 5 Phenoms (7-43/7-44/7-45/7-47 etc) now and ran 1.8-2.9VDIMM on them varyingly since around 20th November '07 at low and high VCore and at low and high NB VIDs, no mem. degradation whatsoever nor did those affect it... but speed did. Phenom did 626 4-5-5-15 at 2.2V BIOS/2.18V real fully stable but failed to boot 627 even at up-to 7-8-8-22 2.9V. It did not matter what IMC/CPU volts were fed nor the CPU/RAM temp (up-to 10C idle tested).

    The same RAM I swapped in a P35/C2Q setup and it ran 2.2V 676MHz 2.3V 5-5-5-5 SPi 32M with ease 4mins later.

    Guess how it all happened?

    When choosing high mem speeds on 1:2.66 divider, Phenom would get stuck in a reboot cycle even at low volts. No POST, no matter what you did even after 2 days. By checking the various voltages, I found CPU voltage had dropped to sub 1.19V at whatever setting you chose before that, it didn't matter and that caused a failed bootup -- didn't matter which CPU/NB/HT speeds/volts you ran previously. I usually test under cold and as you'll see documented in the 9500/MSI K9A2 Plat. thread, I had to take the CPU subzero (below -15C) and leave it at those temps for 30mins, then bootup with only one DIMM installed and it would always work fine and restart up thereafter. So "dead CPU" perfectly alive again.

    If it were anyone else not trying sub-10C, or even me not trying it, it definitely was like a dead CPU and an RMA was needed.

Page 5 of 5 FirstFirst ... 2345

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •