Q8200

[jjmIII]

Considering the MicroCenter deal, who else is OCing these??

The 7x multipler sets you up for some high fsb speeds.

My q8200:

I set it to 400bus (2.8ghz) and it is at 100% load with no voltage increase. Default voltage is 1.2125 and 1.152 at 100% load. Stable so far even with the vDroop.

Core temps are: 69 65 71 65

I am using a larger OEM Intel Quad core copper HSF with a bolt down kit.

Not sure I will bother to go any higher. This bus speed slots nicely with my DDR2-800.

 

[Gillbot]

I was tempted by the microcenter deal, but decided I don't need yet another chip.

 

[n7]

Sounds like a really nice value quad option.

They're terrible for any heavy OCing though as you're crippled with 7x multi, & obviously, to get the higher FSBs stable you need a UD3R or better, which isn't the lowest price value board...

Also, you should try running your RAM @ DDR2-960 (5:6) or DDR2-1000 (4:5) or higher instead of DDR2-800 (1:1 )...you get better performance that way

 

[vj8usa]

Originally posted by: n7
Also, you should try running your RAM @ DDR2-960 (5:6) or DDR2-1000 (4:5) or higher instead of DDR2-800 (1:1 )...you get better performance that way

I'm curious, what kind of performance difference will you see in real world applications by doing this? Will it be noticeable, or just a tiny boost?

 

[Gillbot]

Originally posted by: vj8usa

Originally posted by: n7
Also, you should try running your RAM @ DDR2-960 (5:6) or DDR2-1000 (4:5) or higher instead of DDR2-800 (1:1 )...you get better performance that way

I'm curious, what kind of performance difference will you see in real world applications by doing this? Will it be noticeable, or just a tiny boost?

I've not witnessed any noticeable difference in my performance by running my memory at 1:1 and my current CPU at 333x12, 362x11, 400x10, 444x9 vs. 500x8.

 

[jjmIII]

Gil: I really didn't need a new chip either. The quad raplaces a weeks old e5200...for no reason. Now I'm forced to build an itx with the 5200.

n7: Agreed, 7x is not ideal. At 2.8 the chip performs nicely though. I'm not into OCing memory much. Bad memory OCs wreak too much havoc IMO.

vj8usa: On these modern platforms, memory speed has less impact than the old days.

I left the rig at work, but will be tempted to push further on Monday .

 

[Gillbot]

I'm curious to see how far people can push these and how well they will perform.

 

[johnnycasaba]

I have mine at 2975 right now at default vcore on an IP35-E. Seeing some serious vdroop at load (1.12v), but it is stable. Not sure I want to push it further as I have 8GB of value ram. Load temps on the cores range from 60 to 51c using a Vendetta 2.

 

[cubeless]

running one in a 750ftw @ 450 right now... with 2 8800gts it's a real nice 1680x box...

that ftw is $112 ar at ewiz for until the 15th...

 

[TurtleCrusher]

I have my Q8200 as stated in sig. I'm pretty sure i could push it more with more voltage, but damn. It's soooooooooooo fast at 2.9ghz. I don't need any more CPU power.

 

[watek]

After 3.01 ghz...requires too much voltage for a stable overclock.

 

[E4300]

This Q8200 (R0 stepping/E0 equivalent) has VID of 1.25 and pack date of March 09.

Borrowed an EP45-UDP with 18 BIOS. CPU reached 3.49GHz at default 1.25VID/1.18V CPUz (499MHz FSB). Prime95 peaked at 48C/72F ambient.

3.49GHz/499MHz FSB @ 1.25VID/1.18V CPUz
MCH frequency latch: 400
System Memory Multiplier: 2.00D
CPU termination: 1.36
MCH core: 1.44
Other settings at NORMAL default

With additional BIOS tweaks, CPU hits 3.70GHz/528MHz FSB with 1.36Vcore (BIOS). CPUz shows 1.28V. Memtest86 okay @ 530MHz. With more compatible RAM and/or an 8x multiplier, I have no doubt that this CPU stable at 3.8GHz with 1.32V in CPUz. These stick were good up to 592MHz on IP35, but could only manage 530MHz with this Gigabyte board. Anyone familiar with RAM tweaking on this board?

3.70GHz/528MHz FSB @ 1.36 BIOS/1.28 CPUz
MCH frequency latch: 400
System Memory Multiplier: 2.00D
CPU termination: 1.42
MCH core: 1.46
Other settings at NORMAL default

1M Super Pi run of 14.640. Prime95 yields a peak core temp of 60C at 72F ambient.

VTT and MCH are already too high. Any expert on this board with tip on adjustments that would lower VTT and MCH while providing greater FSB? Perhaps I should try 17 BIOS. Will probably back-off to 3.65GHz to account for the hot summer months. Load voltage is still very low. No need to use line calibration, even with the 0.08V drop in core voltage at load. Anyone familiar with the GA-EP45-UD3L? Can this board hit 530MHz FSB? Comes with Advanced Clock Control like CPU clock drive, PCIE clock drive, CPU clock skew, and MCH clock skew?

I don't see any room to add cooling to the boards output devices.

 

[jjmIII]

My OC is limited by my G31 chipset. Looks like 2.8ghz is the end of the road for me right now.

 

[E4300]

Update on this Q8200 (SLG9S RO stepping) and EP45-UD3P. It appears that this board is running out of gas around 515MHz FSB when paired with a quad. North of 515MHz, one must OD on CPU core, VTT, PLL, and MCH to reach 528MHz FSB. This chip is Prime95 stable at 3.6GHz with default core voltage of 1.25 in BIOS (515MHz FSB). 3.7GHz requires 1.36V BIOS setting.

At 3.6GHz, Prime95 small FTTs yields peak thermal load of 47-50C (core 1-4) with 70F ambient. Large FTTs has lower thermal load, but is more difficult to pass. Again, probably related to the FSB limit of this board. RAM is stable under Memtest86 and S&M.

It would be interesting to pop this chip in an Nividia board where the RAM FSB can be locked to reduce stress on the board. Perhaps this chip is stable @ 4.0GHz with 1.36V BIOS.

Graphic booster: fast
7x multi
Host frequency: 515
PCI-E frequency: 100
CIA2: disable
MCH clock skew: 50
Performance Enhance: Standard
MCH frequency latch: 400
System memory multiplier: 2.00D
Timing: 5-5-5-15 with sub 3-3-36-42-3-2
Load line calibration: enable
Vcore: 1.25 (1.275 with load line OFF...C1E, C2E, and C4E enable)
CPU termination: 1.36
CPU PLL: 1.5 (okay up to 1.61)
CPU ref: 0.886 (about 0.67x vcore for quad and 0.63x for dual)
MCH core: 1.46
DRAM: 2.00

I'd like to get some input about lowering MCH voltage. Perhaps this will allow more stable operation north of 515MHz FSB without the need to crank up other voltage settings.

 

[TurtleCrusher]

holy shit. that makes my board look like crap.

 

[Flipped Gazelle]

Wow. That is sweet!

 

[bfu]

Hi E4300,
I'm getting the same MB (EP45-UD3P) with Q9400, hope to reach 3.6Ghz 24/7, but my RAM may not be good enough, what sticks are you using?

 

[E4300]

Both Crucial Ballistix DDR2 1066 2.0V and Kingston N5 DDR2 800 1.8V were good up to 528MHz with 2.0Vdimm. Now running Performace Enhance in TURBO mode instead of STANDARD. 1M Super Pi @ 3.6GHz is 14.562 sec. You may need to tweak MCH clock skew if you run into a FSB wall around 475MHz. I suspect these Q8200s can easily hit 500MHz FSB with a decent board. Will probably need an Nvidia board to push a good chip north of 3.6GHz. The Intel board requires too much VTT and MCH north of 515MHz.

I'd set Vcore to VID and crank up the FSB. A quality 1.8V DDR2 800 module should be able to run at 450-470MHz with 2.0Vdimm. No need to raise VTT, PLL, and MCH more than two notches above NORMAL value. It's best to set all values to NORMAL, then raise individual parameter as needed. Avoid AUTO. I didn't need to touch VTT, PLL, and MCH till +480MHz. These quads should be able to hit 3.3GHz at default Vcore. If you have to add a lot of voltage to hit this speed, then you've overloaded voltage on one or more parameters.

 

[lopri]

Originally posted by: E4300

Will probably need an Nvidia board to push a good chip north of 3.6GHz.

!

 

[Gillbot]

Originally posted by: lopri

Originally posted by: E4300

Will probably need an Nvidia board to push a good chip north of 3.6GHz.

!

I'd take my "crappy" P45 MSI over my Nvidia board ANYDAY for higher end overclocking.