Mushkin Support Thread

[Greg0101]

np. Always try to keep ncix stocked up

 

[DMF]

Asus P5Q Pro, E8400, HP2-6400 2x2GB kit (dual channel).

After reading The Tech Respository guide to CAS v. FSB, I have set the timings to the advertised 5-4-4-12, NB strap to 333MHz (NB seems okay with it), FSB to 416 for 3.74GHz CPU & DDR-832 keeping 1:1 ratio. I also nudged the voltage to 1.82V though it seemed stable at 1.80. 416 FSB at CAS 5 yields a strobe latency of 12.0 ns.

Two questions: Can you make an estimate of how fast this kit can be pushed at the above timings?

What's a reasonable practical maximum over-volt? I don't want to get anywhere near it, but it's hard to know whether one is being conservative without knowing what outrageous looks like.

 

[DonInKansas]

That the same RAM I run and have gotten them to run at 950mhz at 2.05v. They are covered under warranty to 2.1v. Haven't pushed any farther. Here's an online review but YMMV:

http://www.virtual-hideout.net/reviews/Mushkin_4GB_HP2-6400/index.shtml

 

[DMF]

Oh, and one other thing. When set to Memory Timings [Auto], apparently the BIOS pads the SPD results (or are the SPD results really 5-5-5-18?). So I set the advertised timings manually. But there are a bunch of other timings in the BIOS, currently set to [Auto]. Are those derived from the four advertised values? If not how does one know how to set them? Is there a more complete specification for the kit?

 

[DMF]

That the same RAM I run and have gotten them to run at 950mhz at 2.05v.

What timings?

Interesting review, but it covers a different kit 996564. Mine is 996587 which is rated 1.8V and apparently uses a different IC.

Since the voltage spec is not a range, I must presume that over-volting voids the warranty?

 

[Greg0101]

Upto 900Mhz 5-4-4-12 should be possible, using 2.0-2.1v
We only list this kit as 1.8v on our site, but they are warrantied 2.0-2.1v last I heard.
Regardless, 2.1v is extremely safe and should not damage your ram.

 

[cdnbum88]

I just got the PC8000 2x2 sticks and right now have them on auto.

In cpuz it shows 460.

I am at work, but how best should I get these up to 1000?

Newbie here.

Have my 9950 ata 3.2, but can get 3.375 and just ordered a WC system, so hope to get that a little higher.

Thanks for your help.

 

[Greg0101]

2 Sticks

Ai OVerclocking: Manual
CPU Tweak: Disabled
PLL1 Spead Spectrum: Disabled
PLL2 Spead Spectrum: Disabled
DRAM Ganged Mode: Disabled - Unganged has been found to perform better during heavy mutli-threaded tasks
Memory Hole Remapping: Enabled

Memory Clock Mode: 1066Mhz
2T Mode: Enabled
CAS Latency: 5
TCWL: 6(5-6)
TRCD: 5
TRP: 5
TRAS: 12
tWR: 6 (5-6)
tRFC(0-3): 327.5ns (195-327.5ns)
TRC: 31 (26 if max in bios)
TRRD: 4 (3-4)
tWTR: 4 (3-4)
tRTP: 6(5-6)

DRAM Voltage: 2.0-2.1v

If default fsb speeds, try 1066Mhz divider, overclocked will likely need 800Mhz memory divider when >210

 

[cdnbum88]

2 Sticks

Ai OVerclocking: Manual
CPU Tweak: Disabled
PLL1 Spead Spectrum: Disabled
PLL2 Spead Spectrum: Disabled
DRAM Ganged Mode: Disabled - Unganged has been found to perform better during heavy mutli-threaded tasks
Memory Hole Remapping: Enabled

Memory Clock Mode: 1066Mhz
2T Mode: Enabled
CAS Latency: 5
TCWL: 6(5-6)
TRCD: 5
TRP: 5
TRAS: 12
tWR: 6 (5-6)
tRFC(0-3): 327.5ns (195-327.5ns)
TRC: 31 (26 if max in bios)
TRRD: 4 (3-4)
tWTR: 4 (3-4)
tRTP: 6(5-6)

DRAM Voltage: 2.0-2.1v

If default fsb speeds, try 1066Mhz divider, overclocked will likely need 800Mhz memory divider when >210

If I remember correctly since I am not in front of my PC, that since I have the FSB at 235 I believe, there was not an option for 1066 in the memory 4 to chose from, it was some other number.

When I did pick parameters close to what you noted it would not post.

I assume these settings are for an AMD board? I am not familar with all the naming convertions just yet.

 

[Greg0101]

Do you have a 800Mhz divider, or 2.0?

 

[cdnbum88]

Do you have a 800Mhz divider, or 2.0?

How would I determine that to know what I have?

 

[Greg0101]

Do you have an option for Memory Clock Mode: 800 or 2.0 , or is it showing actual values? ~940Mhz ~ 1222 etc

 

[cdnbum88]

It will not post.

dram timing mode - options are auto/DCT0/DCT1/Both
I put both and put in your numbers for both sections DCT0/DCT1.

I set mem clock speed to 1067 after changing back my FSB to 200 and up'd my multiplier to 16 for now.

I did not see anything that shows 2.0 vs 800mhz.

I am lost on trying to make this work. Sorry you are working with a dude on this.

 

[Greg0101]

np
Basically, set 800Mhz where you are now @ 200
Then increase back upto 235Mhz

 

[cdnbum88]

I put the FSB to 250 and 13 multiplier.

Then the mem is 500 2:1.

But it has BSOD twice when trying to run 3dMark06.

Had voltage to 2.1, brought it back down to 1.9.

Just trying different things at this point.

 

[Greg0101]

Not sure what the nb voltage is referred to on your board.
Its normally vNB or something similar on asus boards.
An increase in either this or cpu voltage should help with instability at the higher speeds.

 

[cdnbum88]

I had the core at 1.425 and the NB the same.

Definately helps with the cpu stability, but this seems to be coming with the RAM higher speeds.

I wish there was a piece of software that would test your machine and give you the limits.

I know the Nvidia test 'tries' to do something like that, but it always crashes.

I just need to become more versed at this stuff and it will all play well together.

 

[Greg0101]

I would grab memtest86+ to test the ram.
or HCI memtest for windows (run as many copies as needed to fill ram, 4GB in x64 os, would be 3x920MB and 1x0MB to use remaining)

If you get errors, drop fsb 5 mhz, and repeat until no errors, to try and find when the errors start.

Also you could drop the memory speed 1 notch, to rule out ram speed.

 

[cdnbum88]

I would grab memtest86+ to test the ram.
or HCI memtest for windows (run as many copies as needed to fill ram, 4GB in x64 os, would be 3x920MB and 1x0MB to use remaining)

If you get errors, drop fsb 5 mhz, and repeat until no errors, to try and find when the errors start.

Also you could drop the memory speed 1 notch, to rule out ram speed.

Good idea. Will give that a go.

 

[johnspack]

For testing for stability, orthos http://sp2004.fre3.com/beta/beta2.htm really helps. I would use Blend-stress CPU and RAM and the Large, in-place FFTs-stress some ram tests at each mhz stepping that you're trying. Start by making sure it'll run at least 10-15mins and pass. When you find the max, run the blend test overnight, if it passes you're done! Even for reasonable stability it should pass at least 60mins, I've had a test fail at like 54mins many times. I've had an oc pass in memtest, but fail in orthos, so use both really.

 

[DMF]

Asus P5Q Pro, 1306 BIOS, E8400, 2x2GB Mushkin DDR2 HP2-6400 5-4-4-12

memory timings set manually ^^^
FSB 416 (CPU 3.76GHz @ 1.26V (1.30V setting))
CPU is not the limiting factor; this happens even when I drop the multiplier

with the NB strap set at 400 memory divider is 1:1; DDR-832
with the NB strap set at 333 memory divider is also 1:1; DDR-833

The 333 strap is preferred because of lower default tRD http://www.anandtech.com/showdoc.aspx?i=3208&p=4

--------
Problem: 1:1 400 is stable; 1:1 333 is not.

1:1 333 sometimes won't POST, requiring a complete power cycle (AC switch off). When it does POST it produces "BOOTMGR is corrupt" when Vista tries to boot.

memory tested at 1.82V, 1.90V, 2.00V
NB tested at Auto and a couple values I don't remember.

I don't get this at all. Suggestions?

 

[Solaris17]

Asus P5Q Pro, 1306 BIOS, E8400, 2x2GB Mushkin DDR2 HP2-6400 5-4-4-12

memory timings set manually ^^^
FSB 416 (CPU 3.76GHz @ 1.26V (1.30V setting))
CPU is not the limiting factor; this happens even when I drop the multiplier

with the NB strap set at 400 memory divider is 1:1; DDR-832
with the NB strap set at 333 memory divider is also 1:1; DDR-833

The 333 strap is preferred because of lower default tRD http://www.anandtech.com/showdoc.aspx?i=3208&p=4

--------
Problem: 1:1 400 is stable; 1:1 333 is not.

1:1 333 sometimes won't POST, requiring a complete power cycle (AC switch off). When it does POST it produces "BOOTMGR is corrupt" when Vista tries to boot.

memory tested at 1.82V, 1.90V, 2.00V
NB tested at Auto and a couple values I don't remember.

I don't get this at all. Suggestions?

i have the same sticks and im wondering wats possible to get out of them as well. the HP2-6400's i pulled the spreaders off funny enough all of the chips hve like 0 info on them...however 1 stick reveiled that they were mushkins...as all 4 2GB sticks are from the same batch i assume hey are all the same chips i have them a 2.1 950mhz 5-4-4-12 tried 5-5-5-18 with NB and south bridge at 1.5v (max) and she wont boot at 1000mhz i know its asking alot of 800mhz stock sticks but still it would be intresting to know what people have gotten. ram is unlinked from FSB so i can set speeds independently.

 

[Greg0101]

Asus P5Q Pro, 1306 BIOS, E8400, 2x2GB Mushkin DDR2 HP2-6400 5-4-4-12

memory timings set manually ^^^
FSB 416 (CPU 3.76GHz @ 1.26V (1.30V setting))
CPU is not the limiting factor; this happens even when I drop the multiplier

with the NB strap set at 400 memory divider is 1:1; DDR-832
with the NB strap set at 333 memory divider is also 1:1; DDR-833

The 333 strap is preferred because of lower default tRD http://www.anandtech.com/showdoc.aspx?i=3208&p=4

--------
Problem: 1:1 400 is stable; 1:1 333 is not.

1:1 333 sometimes won't POST, requiring a complete power cycle (AC switch off). When it does POST it produces "BOOTMGR is corrupt" when Vista tries to boot.

memory tested at 1.82V, 1.90V, 2.00V
NB tested at Auto and a couple values I don't remember.

I don't get this at all. Suggestions?

That 1 lower tRD can cause the no post your getting, I do the same to get 1 lower tRD with my rampage extreme at 490FSB.

Auto might actually work better, since certain speeds are only available using certain straps.

 

[Greg0101]

i have the same sticks and im wondering wats possible to get out of them as well. the HP2-6400's i pulled the spreaders off funny enough all of the chips hve like 0 info on them...however 1 stick reveiled that they were mushkins...as all 4 2GB sticks are from the same batch i assume hey are all the same chips i have them a 2.1 950mhz 5-4-4-12 tried 5-5-5-18 with NB and south bridge at 1.5v (max) and she wont boot at 1000mhz i know its asking alot of 800mhz stock sticks but still it would be intresting to know what people have gotten. ram is unlinked from FSB so i can set speeds independently.

Is your tRFC set to 60?
Since an nvidia chipset, running sync will actually perform best normally using linked memory mode.

 

[Solaris17]

Is your tRFC set to 60?
Since an nvidia chipset, running sync will actually perform best normally using linked memory mode.

o really? linked? idk if my sticks can do that...im using 4 sticks and my FSB is insane. (4.1Ghz on a 9.5 multi atm) so what do you suggest i do? set trfc to 60 and link the ram? edit o and removing the sink reveiled they were micron not mushkin sorry iv been up since 6 yesterday