Not all 50k trimmers are created equal.

gorby

New member
Good news from camp gorby this morning.

I finished setting up my rma'ed board last night and the results are quite spiffing :D Ill start with a before and after and then some speculative thought.

b4.. best stable clock

p4c800-e-d, vdimm + vdroop mod'ed with parts bought from maplins. (where incidentally i will never shop again. imo they really suck, poor service / general incompetence from staff)

sl6wu 3.0

292 X 15 = 4380 @ 1.75

bios 14

mobo rev 1.0

biggest vcore drop whilst running 2 X prime 0.08V

now (2 X prime over night)

p4c800-e-d, vdimm + vdroop mod'ed with parts bought from farnell spectrol vishay trimmers (basically the most expensive ones i could find oooo £1.60 ;) )

sl6wu 3.0

298 X 15 = 4470 @ 1.8V (either the chip dies or i reach 300 :D )

bios 16

mobo rev 2.0

biggest vcore drop whilst running 2 X prime 0.05V

1stly b4 1.8V would barely make it past the post now even 1.82 is fine. atm im putting this down to a combo of the new board rev, the new bios and the better trimmers, ill test the new set up with bios 14 later

2ndly these new trimmers are much better. I tested the vishay ones against the ones from maplins on an average at each step the vishay ones are 0.05 ish V's more accurate. There is a dial on the vishay one to select different resistance which really helps for testing.

3rdly i reccon theres even more to get out of this chip, with 1.82V i can get to windows up to 309 but its unstable. However @ these settings with the extra juice and fsb the vcore drop whilst primeing becomes bigger and bigger. I think its around 0.09 at its worst but hard to tell as it boots when this happens.

atm im researching adding extra mofsets to the board to make the vcore even more stable. When i get my camera len's sorted out ill post picys of the mods and where the mofest are going to go.

Oh yeah and this time ill be blown (like that standin? :p ) if i get conden. Ive used laquer on the back, grease (both sides) and double perim seal on the front. Oh and the all important seal on the screws (/gorby slaps himself)
 
just like u said in MSN ;) hope the new trimmers work nicely for you :)

Did u forget to seal string the screws groby? if so you deserve to be slapped :P
 
I tired to m8, i have little uv studs on my freezer head, one fell of and i noticed what i had neglected :o
 
I am using maplins VRs..which are the same as o-c where i bought my first from...

Setting the VR at 28K i got a drop of like 0.4V from idle to load

so i dont think your vrs were faulty...perhaps you didnt set the VR accurately enough?
 
hmm maby, but your drop there seems very similar to my current one. Perhaps its more to do with bios and board rev...
 
could be

i always had rev 2 boards though...and bios 16 the latest :)

well iam getting a new one by the end of the week i guess so i will see what the new one is like...
 
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