Ballistix Problems

[infrared]

I just bought a Crucial Ballistix PC2-8500 CL5 2GB kit:
http://www.overclockers.co.uk/showpr...odid=MY-093-CR

I was assuming that these modules, like all of their other ballistix and ballistix-tracer range would come with the Micron D9GMH chips, that are well known for reaching 1200mhz +.

Anyway.. rated speed and timings: 1066mhz 5-5-5-15 2.2v

The modules failed to run even at 1000mhz 5-5-5-15-4-42-4-4-4 2.3v They would boot up, but immediatly fail memtest86. I was puzzled at this, so decided to have a peak under the heatspreaders. Instead of being a double-sided dimm, with micron D9 chips... It is single sided with "P1GR" etched on the chips.



I'm going to send Crucial an Esnail. But in the mean time, i'll be using my cheapass Geil memory because it will actually work reliably at 1ghz cl5.

[Hawk1]

Hmm I would have assumed they would have all been D9's. Anyway, you could try lowering the voltage on those at 1000mhz. I know with mine, if I give them too much v when underclocking, I will fail memtest, but if I lower it a point or two, they would become stable.

[infrared]

Nope, tried lowering the voltages.

I just tested both stick individually, and neither would boot at 1066mhz 2.2v CL5.

[Xazax]

it may be your motherboard, ive had Ballastix before with an EVGA 780i and almost like yours, they wouldnt OC worth a damn too 1100/1150/1200 at all, any voltages any timings believe me i tried them all!

However mine were able to run at the rated speed of 1066mhz 5-5-5-5 2.2v and pushed them up to 2.3v and was able to achieve 4-3-3-9 1066mhz, though mine were the Tracers which lit-up.

You might of gotten bad sticks, im not sure about the memory not being D9GHM chips however you can ask OC.UK or Ballasitx to replace it because they wont run even at the rated speeds.

[infrared]

Success at last!!

Originally Posted by infrared

Since flashing to the new bios for my P5K Deluxe (0809), and after seeing what an improvement it made on my SuperTalent, I decided to have another go with the Single-Sided Crucial Ballistix pc2-8500.

A few thing's i've learnt about these dimms:

-Don't like anything over 2.2v (rated voltage)
-Requires High tRAS and tRFC

So, using 2.2v, and [5-5-5-14]-3-50-4-4-3 timings, i slowly upped the frequency with SetFSB, and finally arrived at 1150mhz stable! Not bad considering i'd applied to RMA these sticks!

Everest Results:

Read - 9623mb/s
Write - 7827mb/s
Copy - 7948mb/s
Latency - 52.1ns

[mandelore]

i have mentioned this before

I had some, sent em back, they use crappy ic's now, often single sided and dont oc well.

I was talking to a representative from crucial and they have made the micron based modules eol, no further production is happening with d9 based chips

they do oc, but crap compared to their predecessors