is this a lemon E4300?

[rookiE6400]

Hello everyone,

i jumped on the Fry's deal of $149 for E4300 tray + ECS p4m800pro combo, and then went and got the following:
- Biostar tforce 965pt (using beta bios 119 to get 400Mhz for memory)
- arctic cooling freezer 7 pro
- APEX AL-B500E ATX 500W
- Antec sx-635
- corsair xms2 2gb (675, 4-4-4-12)
- geforce 6100 turbo cache (yes, i know... saving up for Geforce 8600 Ultra)

after 2 days of tweaking, this is where i am at:
9x334, 1.45 vcore (system wont POST with 333x9 for some reason)

orthos blend full load temp: speedfan 57c, core temp shows 5-10c lower?!, TAT wont run "error enumerating on demand clock modulation support")
idle temp: 30c speedfan

i am at 1.4 Vfsb and 1.35 Vmch, and 2.2 vdimm 5-5-5-15, trying to get highest OC on CPU

could someone give me some pointers on how to get the vcore/temp down (and perhaps push OC up some more) or i am SOL on this chip?

thanks in advance

 

[InterSlayer]

It might just be the memory itself doesn't overclock very well. Since its 675 memory, it's fsb limit is ~337.

 

[mesarectifier]

You already have a great cooler, and those temps aren't anything to be worried about.

3 Ghz is a great overclock, I don't see what the problem here is - you've got an extra 66% of clock speed out of your system for free.

 

[Lyom]

I had the Fry's chip stable @ 345 x 9. Returned it. Ordered the retail E4300 from the egg now stable @ 375 x 9.

 

[rookiE6400]

hello and thanks for the input

after some browsing, i found my CPU is behaving exactly like the author of this post:
http://www.ocforums.com/showthread.php?t=498870

here are some additional E4300 info: (could we start a thread like this?)
http://www.ocforums.com/showthread.php?t=498459

seems like these week 41 OEM E4300s (aka Fry's $149 special) requires a lot more Vcore to up the speed

is it safe to run OC 24/7 with vcore at 1.5 or even, 1.55?

thanks in advance

p.s. Lyom, what was your vcore when you reached 345 stable?

 

[Lyom]

p.s. Lyom, what was your vcore when you reached 345 stable?

Well according to my (scribbles on scratch paper) i guess it was stable at 345 x 9 with vcore of 1.525 set in bios. But with voltage drop ASUS probe probly registered around 1.46 or so. You could try and raise up the North bridge some and see.

 

[Bache]

hello and thanks for the input

after some browsing, i found my CPU is behaving exactly like the author of this post:
http://www.ocforums.com/showthread.php?t=498870

here are some additional E4300 info: (could we start a thread like this?)
http://www.ocforums.com/showthread.php?t=498459

seems like these week 41 OEM E4300s (aka Fry's $149 special) requires a lot more Vcore to up the speed

is it safe to run OC 24/7 with vcore at 1.5 or even, 1.55?

thanks in advance

p.s. Lyom, what was your vcore when you reached 345 stable?

Weak E4300 cpu's?

Why are these OEM cpu's weak?

OEM cpu's are unboxed correct.

I always buy the one's in the sealed box with HSF.

Worth it for a few extra dollars

 

[rookiE6400]

after some thinking, i've decided to back down to 2.83G (315x9) at 1.35 vcore (speedfan and cpu-z vocore reading = 1.33/1.32)

temperature is 44c core temp after running orthos blend for 10hrs (speedfan reads 55c), and idle temp is 24 core temp, 30 speedfan

since TAT didnt work for this E4300, i suspect core temp is inaccurate as well

from other posts, core temp and TAT is usually 10c higher than speedfan, so my guess is actual core is at 40/65 idle/orthos blend?

thinking further, if we are to "grade" these processors, OEM ones is probably a grade lower than the Retail ones.

thanks for everyone's comments

 

[Lyom]

TAT worked for both that I tested but registered around 15c higher than core temp. From my findings, both the OEM and retail versions remained stable @ 3GHZ with no tweaking and all default bios settings. That would lead me to believe the majority of these E4300's would be safe at that speed.
To be able to go beyond will require solving the mysteries and variables associated with every cpu and related hardware involved with that paticular setup. But IMHO thats "the fun part" of this hobby.