racerblur
Junior Member
Macs make nice pets!
Posts: 91
|
Post by racerblur on Jul 5, 2007 15:02:18 GMT
Ok, I was wondering what FSB is everyone running to get their clock speed up. I am new the the OC game at least on the PC side. Now that I'm water cooled I'd like to see what people have been running... Voltage, FSB, RAM...etc..etc...
I currently have an Intel D975XBX2 with a Core 2 Quad q6600 2.4 -- running around 2.66... just changing the FSB...
I'm taking things slow... also I need to upgrade my ram specs... I'm running 667... everyone suggested I go to 800 at least... so... any opinions? ;D
Thanks, Racerblur
|
|
|
|
Post by nikonnut on Jul 5, 2007 18:31:18 GMT
Racer,
Well, I can't get quite as elaborate cause my BIOS options are pretty lame (i.e., I can't change the multiplier, etc.) but here you go.
FSB=1.07 GHz upped to 1.33 GHz (266x4 bumped to 333x4)
CPU= 1.86 GHz upped to 2.33 GHz. Had to up the core voltage to 1.4V to get it stable.
Memory= I actually backed my memory down to 1:1. This equates to 667Mhz. If I ran it at 1:2.5 id would be clocked at 840 MHz. I also had to bump the memory voltage to 1.904V. Also, if you can manually set the clocks I would go that route as when I use SPD enabled the timmings got wonky.
I run both Prime95 and CPU Burn to test stability and temp. Nice and stable but HOT!!!! I'm hitting 75oC so until I get some water on my box it's back to stock!
Hope this helps,
Chris
P.S. Here's a few specs of my system;
Asus P5LD2-VM R2.0 MoBo
Intel C2D E6320
Viking Value RAM DDR2 PC-5300
|
|
|
|
Post by aquamac on Jul 5, 2007 19:02:16 GMT
Racer, I just use the unlocked multiplyer that you get on the Quad Core at 12x to give a speed of 3.2 Gigs.
|
|
racerblur
Junior Member
Macs make nice pets!
Posts: 91
|
Post by racerblur on Jul 5, 2007 20:20:47 GMT
Aqua-mac, What proc are you using? My multiplyer is locked...  I have q6600 hmm, frustrating actually! -Racer |
|
|
|
Post by aquamac on Jul 5, 2007 21:08:59 GMT
Racer,
I have a Core 2 Quad , I thought that is what you had. Most have an unlocked multiplyer. Ah I see you have a 2.4. I think only 2.66 & New 2.9 are unlocked. You should be able to hit 3.2 easily, I got there without watercooling.
|
|
|
|
Post by nikonnut on Jul 6, 2007 16:08:16 GMT
Aqua,
That "X" that they throw in the description sure makes a difference! Of course that one little letter would absolutely RUIN my budget. Bring on the Penryns! Actually, I'm just biding my time until 07/22/2007. Hope the pricing rumors are true!
Cheers,
Chris
|
|
racerblur
Junior Member
Macs make nice pets!
Posts: 91
|
Post by racerblur on Jul 6, 2007 16:14:15 GMT
I found a awesome website that exclusively for the Bad Axe2 www.peakin.com/xbx2/I'm still running at 2.7ghz, but it doesn't show up on the Mac side.... To hit 3.2ghz I'd follow this example from that website -- hopefully my 667 ram can handle this... BIOS Settings: FSB=360, Reference Frequency=266, Memory Frequency=667 FSB/MEM Ratio: (266 fREF / (667 fMEM / 2)) = 0.8 = 4/5 Memory Clock: (360 fFSB / 0.8) = 450 MHz DDR2 Equiv: (450 fMEMCLK * 2) = 900 MHz = ~PC2-7200 FSB Throughput: (360 fFSB * 4 (QDR) * 8 (bytes)) = 11520 MB/s Single Channel Mem Throughput: (900 fDDR2 * 8 bytes) = 7200 MB/s Dual Channel Mem Throughput: (7200 * 2) = 14400 MB/s Real World Mem Throughput: (7200 + (7200 * .30)) = 9360 MB/s There's cool overclocking calculator www.peakin.com/xbx2/calculator.html |
|
racerblur
Junior Member
Macs make nice pets!
Posts: 91
|
Post by racerblur on Jul 7, 2007 10:23:39 GMT
Aqua-mac, Did you mod your about mac file so it show the correct clock (overclocking)  Mine still believes I have a 2.4 -- or actually a 2.39 (?) anyhow, it's 2.7 (for now) and windows see that correctly.... |
|
|
|
Post by aquamac on Jul 7, 2007 12:48:02 GMT
Racerblur,
Send me your System profiler SPPlatformReporter.spreporter file and I will mod it to 2.7. I actually did not have to do mine, but quite often you do, as depending on the kernel you are using, they can show incorrectly. Or if it is the about this mac window you need fixing send me from your log in window the English.lproj file. This is in System/library/Core services/loginwindow. Show package contents then click Contents/Resources/English.lproj (send me the English.lproj file and I can fix it for you).
|
|
|
|
Post by nano2nd on Oct 31, 2007 8:29:06 GMT
I recently replaced my ECS 945 chipset mainboard with the Bad Axe 2/Intel D975XBX2 and just had a bit of a play with overclocking - the ECS was pretty basic and wouldn't let me change anything but the FSB and then only as far as 240. I'm using the E4300 and using the excellent guide linked to above was able to boot OS X at 3GHz - a pretty significant leap from the stock 1.8GHz. Of course it then kernel panicked when I put it to work doing some Handbrake encoding. Running stable now at 2.88GHz without any changes to voltage and air cooling with a Zalman low profile cooler. Temperatures haven't moved a bit. I'm mostly pleased by the good value the E4300 represents (being a bit of a cheapskate)!  |
|
