540FSB on mATX

[lopri]

I'm not a fan of high FSB, but this one I thought was worth sharing.

CPU: E8400
Mobo: ASUS P5E-VM HDMI mATX
HSF: Scythe Infinity
Memory: Buffalo Firestix (D9GKX)

540 FSB

525 FSB

Still playing with it and with the on-board GPU the board did Orthos for 2 hours (I stopped it) @9x444. In a typical ASUS fashion, vDroop is beyond belief. With a discrete GPU the max stable FSB looks to be 500. How long the board will survive at that, I don't know.

 

[harpoon84]

Not bad at all. Do you have active cooling on the NB?

From what I've seen the 45nm duallies have a slightly higher FSB ceiling than 65nm, hopefully the same pattern holds true for the quads as well.

I really want to know what kind of FSB my P5B Deluxe can sustain, especially with quad core, but everyone seems to be running P35 boards these days. I want to upgrade to a Q9450, but only if my mobo is capable of ~450FSB, otherwise it wouldn't be worth it.

 

[bunnyfubbles]

Originally posted by: lopri
I'm not a fan of high FSB, but this one I thought was worth sharing.

CPU: E8400
Mobo: ASUS P5E-VM HDMI mATX
HSF: Scythe Infinity
Memory: Buffalo Firestix (D9GKX)

540 FSB

525 FSB

Still playing with it and with the on-board GPU the board did Orthos for 2 hours (I stopped it) @9x444. In a typical ASUS fashion, vDroop is beyond belief. With a discrete GPU the max stable FSB looks to be 500. How long the board will survive at that, I don't know.

right, but its good to know for the future for overclocking the CPUs with lower multies, say the lower end yorkfields...could crack 4GHz with even the Q9300

 

[Zap]

Originally posted by: lopri
540 FSB

:thumbsup:

That's in line with what others are seeing. I've seen reports up to 550MHz but of course that may have been a suicide run.

Long live smaller motherboards!

 

[lopri]

harpoon84: Yes, I use semi-active cooling on the NB. Thermalright HR-05 sits on top of the NB, and there is a fan blowing air through both the RAM and the chipset area.

Interestingly, latest Everest beta reads the mobo as "P5K-E HDMI" in one of the sections.

 

[lopri]

BTW - the stock heat sink as well as the *thermal insulator* ASUS used are a joke. I'll see if I can take a pic of it.

 

[Tempered81]

Nice FSB lopri. What kind of volts do you need for orthos stable stressing at 9x444?

 

[Skott]

mATX sweetness in the last 6-8 months. Now if DFI makes that mATX SLI/CF mobo things will really be looking up for SFF users.

 

[lopri]

I give 1.425V in the BIOS for 4.0GHz, which drops to 1.372V idle in Windows, and drops to 1.320V under load, then fluctuates a bit. :frown: One of the biggest reasons I'm not too fond of ASUS boards, but I had no choice because it was the only G35 board out there. (Tried GF7150 but that was just.. well let's just say you get what you pay for..) It can OC to 400FSB with default vNB (1.25V), but in order to watch H.264 without noise it needs at least 1.45V - and it gets hot. For overclocking and HD playback, better NB cooling is a must, IMO.

 

[Tempered81]

you really dont need an 4ghz e8400 for HD playback, do you? I have a screenshot of 4050mhz at 1.26 volts idle and 4200mhz at 1.32 volts idle.

http://picasaweb.google.com/jaredpace/ScreenShots

 

[buffpinoy]

I bought the buffalo firestix for my ASUS P5E-VM HDMI and it will not boot! Any suggestions?

 

[nyker96]

Originally posted by: buffpinoy
I bought the buffalo firestix for my ASUS P5E-VM HDMI and it will not boot! Any suggestions?

trade that in for some ballistix ... kidding. I guess maybe the default timing for them are not bootable. get a stick of regulars and set up timings manually then use firestix.

 

[tenax]

Originally posted by: bunnyfubbles

Originally posted by: lopri
I'm not a fan of high FSB, but this one I thought was worth sharing.

CPU: E8400
Mobo: ASUS P5E-VM HDMI mATX
HSF: Scythe Infinity
Memory: Buffalo Firestix (D9GKX)

540 FSB

525 FSB

Still playing with it and with the on-board GPU the board did Orthos for 2 hours (I stopped it) @9x444. In a typical ASUS fashion, vDroop is beyond belief. With a discrete GPU the max stable FSB looks to be 500. How long the board will survive at that, I don't know.

right, but its good to know for the future for overclocking the CPUs with lower multies, say the lower end yorkfields...could crack 4GHz with even the Q9300

that's not an accurate assumption to make at this point..it's commonly believed based on the review tests at this point, that the quad penryns will not hit as high an fsb as the dualies. not conclusive at this point..not enough quad penryns in users hands and tested, but with all the xeon versions that people have bought up this week, i expect that we'll start seeing some good evidence on a variety of boards within the next wek to 2 weeks.