mushkin troubles

i have an ic7 and 2x512 mushkin lvl2.

i tested both stick in single channel to see how fast i could get them, and i managed to get each to 230mhz @ 2.8v 2-3-2-6...

then i put them both in for dual channel in slots 1 and 3. the highest i can run like this is 225mhz @ 2.8v 2.5-3-3-7...

whats wrong here? why do they run faster seperate then together? they can both reach the same speeds... i have gat set to a-a-a-d-d and it doesnt seem to work. am i missing something?

also, i am unable to run memtest because i lack a floppy. is there a way to do it from windows or a cd? are there other tests besides memtest that would yeild the same results without having to waste a cd/get a floppy?

What speed mushkin? Yes they will faster seperately than together. Can't borrow a floppy for a couple hours? Also try the other slots, sometimes they work better.

3500. the voltage on this board is fustrating i may just order an ai7

edit: dan can u set your vdimm to 2.8 and see how high your ram will go @ 1:1 for me? if its anywhere near 225 ill just sell board

I've done the volt mod, so it's not an easy task. Prior to the mod I could hit 223-226 at 2.85v. 2-3-2-6 or 2-2-2-6 as I recall.

ok sounds good. i shouldnt have a problem getting 233mhz out of my ram with the ai7 @ 3.2volts. thanks.

I've heard some of the abits have a stability issue with the ram voltage supply on settings above 3.0v. Go w/ a volt modded Asus.

thats only the ic7-max3 i beleive

Could be...I don't recall which ones for sure.

i ran memtest and got over 100,000 errors. im in the process of testing which stick is at fault. could this be my problem?

Use 2-2-2-6 it's way more stable.

shouldnt they be able to run stock speeds no problem?

i tested it again rotating dimm slots ect..

both the lowest i got was 58,000 esrros

1 stick got 7,000 and the other 20,000.

is this anything to worry about or should i return one or both?

ill try it again at 2-2-2-6... brb

at 2-2-2-6 i got 43,000 errors.

what is considered acceptible? and how accurate is this test?

also, if i were to return this to newegg. could i exchange it for a kit of 2x512 instead of just 2 stick of 512? i just got it on friday, so its within the 30 day satisfaction guarentue (sp?). if i were to exchange it would i be charged a restocking fee? or no since its not working properly at stock speeds?

mushkins specs are actually 2-3-2-6 for 865/875 chipsets. Are you using GAT? if so try it disabled. Any errors will eventually manifest as some nature of problem.

Any help here? http://www.mushkin.com/epages/Mushk...a273fc0a80102067b/Product/View/990879#abitic7

my gat settings are a-a-a-d-d.

i think im going to send back my ai7 first then if theres still a prblem with teh ram at 3.2volts then ill get that replaced as well.

im pretty disappointed in this ram thus far. i didnt spend $300 to run 20mhz below stock speeds

for an intel board try EpoX's. They go to 3.3 vdimm! (plus you won't have an abit like everyone else )

not like i should talk

i have an epox 8kha+ with my old amd rig. kind of hesitant to buy one for intel cause i havent heard much about them.

EP-4PCA3+

hardwarezone.com review

TweakTown Review

You should note that those are not the 2.2 revision that's being sold at newegg. With epox, revision 2 is very good I still wish I hadn't botched the Vdd mod on my 8RDA+

There is an interesting explantion as to why dual channel can not be o/c's as high in the TWINX 4000 FAQ on the Corsair forums.

I think this apply equally to slower memory and other brands.

If you want to run memtest and don't have a floppy you can burn a CD from this image
image, it also includes some other nice stuff that usually lives on floppies.

You should have no ( 0 ) errors in memtest before you bother running any other benchmarks. Even that does not guarantee that it will be stable in 3D and prime. Complete stability is usually a few MHz below where you are memtest clean.

The spec is 2-3-2-6 at DDR 433 1:1, that is only FSB 217, if that fails you can RMA. 2-2-2 should work at DDR400 and might work higher too but that is not guaranteed.

Don't believe they guarantee or test at 5:4 or 3:2 ratios.

Are you getting all these errors at 1:1 and stock speed?
With your FSB at 290 and 3:2 there could be a lot of other factors that affect memtest. CPU, chipset, heat e.t.c.
In which test(s) do you get errors?
Usually errors in e.g. test #4 are CPU related.

Dan,

In this thread oc ability of mushkin pc3500 black lvl II you said you were going to test 2-2-2-5 and 2-2-2-6 but in your PM to me you said that you settled for 2-3-2-6 because it allowed you better FSB (me too).
Did you find better stability at 2-2-2-6 than 2-2-2-5 in your testing, or did you just buy that argument?

I wrote to Mushkin to ask them why their site states that tRAS=tCL+tRCD+2 yet the spec for 3500 lvl 2 is 2-3-2-6.
I pointed out at that following their logic the spec should be 2-3-2-7. So if 2-3-2-6 is ok then 2-2-2-5 might be ok too.
They have, as yet, not replied.

Br
hepp

hepp said:

.

Dan,

In this thread oc ability of mushkin pc3500 black lvl II you said you were going to test 2-2-2-5 and 2-2-2-6 but in your PM to me you said that you settled for 2-3-2-6 because it allowed you better FSB (me too).
Did you find better stability at 2-2-2-6 than 2-2-2-5 in your testing, or did you just buy that argument?

I wrote to Mushkin to ask them why their site states that tRAS=tCL+tRCD+2 yet the spec for 3500 lvl 2 is 2-3-2-6.
I pointed out at that following their logic the spec should be 2-3-2-7. So if 2-3-2-6 is ok then 2-2-2-5 might be ok too.
They have, as yet, not replied.

Br
hepp

Click to expand...

Check pm

GD

I picked up the level 2 black gig dual pack with an AI7, and kept getting IRQ and page fault errors trying to install XP. I sent back the AI7 and used the mushkins on a 8KNXP, I still had intermittent crashes. I ran memtest86 and found that one stick gave me 2 errors on the first pass on test 5, and another 5 errors on the second pass on test 5. I tried running the sticks separately and the stick with errors crashed my system every time. So if you're getting thousands of errors, that is not acceptable.