ASUS Crosshair Formula IV OC Discussion

[Cordell Cahill]

I thought the NB frequency was supposed to stay higher then the HT link frequnecy...or Im I wrong?

[Cordell Cahill]

I would find a good stable with the ram at desired HT reference, ie HT-Ref 300. x 10 (you'll need this HT Ref to get 4ghz using 13.5 multi - it also gets you 1600mem). You'll have to lower the ram devider to get the 1600mhz for your ram. also lower the NB multi to 6.5 or 7 to get near 2000mhz effective speed. If the system is stable at these setting using the 300 HT Ref, then I would bring the multi up in steps until you reach 4ghz. Of course bring Voltage up as well. I was able to hit 4ghz benchable on the stock Heatsink and Fan this weekend. But I also have an Antec skeloton case that has a 250mm Cooling the entire board, I am sure this helped keep temps down.

Well Ive assumed you mixed up the NB and HT freq since after looking at your setup its the other way around. Ive got my HT multi down to 7x and my NB at 9x. The control of the memory divider doesn't seem good in the bios. I put it on auto and it gives me 3:10, setting dram to 1104 in bios and the system wont boot. At 3:10 now and keep getting a desktop windows manager stopped working message, so Im geussing this mem setting isn't stable. Am I missing something?

[Cordell Cahill]

Sorry if I'm posting too often, if so just let me know.

Been playing around for a few hours and this is what I have so far. It's 20mins into prime right now, how long is long enough for prime testing? I'm getting a high core temp of 59C, according to my cheap thermometer my room temp is about 28C. Basically all I've done is set the NB multi to 10 and the HT multi to 8. I had the multi at 7 for awhile, but the FSB seemed to max out at around 282. I still haven't been able to change the memory divider without the computer going wonky. Oh yeh I've got both load lines enabled too.

I don't know much, but I'm guessing theres more clock to be found.

[cartago2202]

1003 MHz | 8-9-8-22 | 1.713v | 2x2 GB A-DATA XPG X-Series AX3U2000XB2G9-EF | ??? | 890FX | Cartago2202 |






4354 Mhz | 1.488 V | 2799 Mhz | 1.323 V | 829 Mhz | 1.713 V | DDR3 | CCBBE CB 1021 DPMW | 44°C | 32°C | mit HS | 3,06 h | Win Seven 64 | AM3 | Cartago2202

[crazydiamond]

amazing cpu you have there cartago2202, great results

[Cordell Cahill]

Up to 4031 stable now...

Is there a way lower the multi on one core? When going to far it's always the same core that fails in prime testing.

Also how do I change the mem divider without things going haywaire?

[Leeghoofd]

you can eg work with TurboV, there you can select each core seperately

[Cordell Cahill]

you can eg work with TurboV, there you can select each core seperately

But does that save it to the bios, or do I have to set it each time I boot?

[pershoot]

1090T-
CCBBE CB 1020EPMW

Bios: 0055 (Beta)
DDR3-1600: 2T-6-8-6-24-30-160-160-160-160
20x200 - 4GHZ, load: ~1.38v
NB: 2.8GHZ, load: ~1.21v
HT: 2GHZ

LLC on (CPU,CPU/NB)

http://droidbasement.com/phenom/4ghz_2.8ghz.jpg

[charged3800z24]

I thought the NB frequency was supposed to stay higher then the HT link frequnecy...or Im I wrong?

Ht Ref = FSB, AMD does not use a actual Front Side Bus clock. The HT Link does need to stay eqaul or lower then NB, NB can excede HT obviously. The RAM devider needed to be set so you ram would be close to actual speed, which it seems to finally figured. Your results look pretty good now. Sorry if my post was confusing.

[cartago2202]

new cpu 1090T 1020FPMW



4013 Mhz | 1.320 V | 3010 Mhz | 1.224 V | 802 Mhz | 1.707 V | DDR3 | CCBBE CB 1020 FPMW | 37°C | 21°C | mit HS | 2,08 h | Win Seven 64 | AM3 | Cartago2202

[mav2000]

Holy crap...thats some awesome voltages there...1.3 odd for 4 ghz, unheard of I think. And whats the software for the loop on the screen.

BTW has anyone tried putting a copper plate or something on the mosfets under the mobo?

[cartago2202]

is a Heatmaster from Alphacool

[FlanK3r]

with WC???

[crazydiamond]

Holy crap...thats some awesome voltages there...1.3 odd for 4 ghz, unheard of I think.

4105mhz - 1.392v @ load - 2737mhz nb - 74f ambient


4000mhz - 1.344v @ load - 2748mhz nb - 73f ambient


and we all know flank3r's chip can easily do it but yes, cartago's chip is extremely impressive, looks like its similar to flank3rs actually. and the cpu-nb is also very impressive, mine definitely cant do that

[cartago2202]

jup watercooling with 4 Phobya Extreme 200 in a "Cube" http://www.xtremesystems.org/forums/...1&postcount=28

[Alex-Ro]

That chip is truly a gem

[Zeus]

True but what's more interesting, what's it's max stable? From my experience low voltage chips have a concrete wall that is usually even lower than voltage lovin chips. If this chip can do 4.3GHz prime stable with <1.5V it truely is a gem.

[FlanK3r]

now im hard working at 4360 MHz air Cinebench R11.5 ...

[cartago2202]

4314 Mhz | 1.476 V | 2809 Mhz | 1.138 V | 802 Mhz | 1.660 V | DDR3 | CCBBE CB 1020 FPMW | 40°C | 25°C | mit HS | 2,06 h | Win Seven 64 | AM3 | Cartago2202

[FlanK3r]

this like me !

[cartago2202]

but that was not all

4437 Mhz | 1.548 V | 2809 Mhz | 1.184 V | 802 Mhz | 1.667 V | DDR3 | CCBBE CB 1020 FPMW | 41°C | 25°C | mit HS | 2,06 h | Win Seven 64 | AM3 | Cartago2202

[FlanK3r]

whau, this is really nice man! 4437MHz...good point!

[BuBBle.D]

Whats the most mature/stable bios version for this board?
Thanks

P.S: Nice chip(s) cartago2202!

[cartago2202]

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