My runs 920 w/UD5 - Page 2

Neuromancer · #11 11-19-2009

1600 or 2000 MHZ?

Assassin48 · #12 11-19-2009

mine are rated for 1600 8-8-8-21 1T

Neuromancer · #13 11-19-2009

CAn't find anything exact. But based on the binning/specs I would assume
Micron D9JNM

The PCB does not appear to be as robust on the Pi series, so not sure how high voltage will effect them. But it is the same ICs I have on my patriot ELK kit, I have run up to almost 1800 7-7-7 with 1.85 volts and I just juiced it to 1.9 to get 2100+ at 9-9-9 Probably did not need that much though

I overvolt since they stay real cool anyway and I have not had enough time on this rig to really work out the ideal voltages for every setting. I do know that I have crashed on more than one occasion because of not enough Vdimm so I just set it a little high to start with.

Also if your board lets you set MCH strap, these things just LOVE tight timings

Assassin48 · #14 11-19-2009

how high can i push voltage on ram with the i7 ?

I read something about .5 from some voltage

EDIT*
.5 from QPI/VTT voltage

so i have my api @ 1.34 i can push it to 1.8v right ?

DrNip · #15 11-19-2009

Keep your RAM voltage within .5 of your VTT. Yours I believe is like you posted, QPI/VTT Voltage. Keep it within .5 of that. Some mobos won't allow for you to go outside this safe range, I don't think yours will so be careful. I have pushed my RAM upwards of 1.85v. I have some Hyper Elpida's. All depends on the RAM and cooling. Mine was on air with a 120mmx38mm San Ace fan blowing across them.

So if you are at 1.85v RAM your VTT needs to be 1.35v or higher foe example.

Assassin48 · #16 11-19-2009

i bumped the Ram voltage to 1.7 in bios
i went from 10-12-12 to 9-10-10-31 1t going to keep pushing it

5.28.jpg

Neuromancer · #17 11-19-2009

At those speeds 7-7-7-21- (50-70 TRFC cant remember off hand) - 1T I run about 1.825 through mine I have a 120x38mm also laying across the dimms to help cool the whole area of motherboard

. I need high VTT for stability though on my setup. If you can run that BCLK with less than 1.35 volts SWEET!!!

Not sure how your board sets it up For me 1.35 VTT is +250mv I run nothing less than +300 lol but I am a juice pig

Assassin48 · #18 11-19-2009

I have no idea what some of options in the bios do, ill keep pushing to see if i can get some better scores

Assassin48 · #19 11-21-2009

Well i made up my mind that i need to get some new ram, and maybe a new cpu while i'm at it.
Any suggestions ?

Also does anyone know the voltage Points for the UD5 ?

DrNip · #20 11-21-2009

What's wrong with your CPU? If you are looking for RAM your best bet is to pay a lil more. I would look for some DD3 2000 cas 8 RAM if I were you. Preferably 6 GB's.