KHX2000C8D3T1K3/6GX - @DDR3-2191Mhz 7-7-7-21 1T

[eva2000]

Elpida Hyper FTW http://i4memory.com/f83/khx2000c8d3t...i7-980x-23731/

DDR3-2160Mhz 7-7-7-21 1T at 1.78v




DDR3-2191Mhz 7-7-7-21 1T at 1.78v





System:

• Intel Core i7 980X 3951A763 B1 Step 2 ES
• EK Supreme LT H20 + TFC480 + MCP655
• Asus P6T6 WS Revolution 0609 beta bios
• Sapphire HD5870 10.3 beta
• 6GB Kingston 2000C8 (KHX2000C8D3T1K3/6GX)
• 80GB Intel X25-M G2 SSD (OS)
• 120GB OCZ Vertex SSD (DATA)
• Pioneer DVR216 Burner
• Corsair HX1000
• Windows 7 Ultimate 64bit RTM (fully updated)

Not bad - will be interesting to see how much more head room there is

[Sav]

very good Eva2000
Can you run 1900/2000 C6?

[G.Foyle]

Excellent! I wish everyone tested memory in 64-bit OSes.

[subaruwrc]

Finally a usable test with this kit. Thank you for that eva.
Hopefully we will use this kit at gooc 2010 hungarian qualification, so I can see now what is capable of.

[eva2000]

very good Eva2000
Can you run 1900/2000 C6?

See below - results you'll like

Excellent! I wish everyone tested memory in 64-bit OSes.

Thanks, 64bit os is just convenience while i do i7 980X review stuff

Finally a usable test with this kit. Thank you for that eva.
Hopefully we will use this kit at gooc 2010 hungarian qualification, so I can see now what is capable of.

If you get the same behaving kits, they'll really fly!

Windows max 32M Pi @DDR3-1850Mhz 6-6-6-20 1T, max 1M Pi @DDR3-1880Mhz 6-6-6-20 1T and validation @DDR3-1893Mhz 6-6-6-20 1T.

max 32M Pi @DDR3-1850Mhz 6-6-6-20 1T



max 1M Pi @DDR3-1880Mhz 6-6-6-20 1T



max validation @DDR3-1893Mhz 6-6-6-20 1T

CPU VTT = 1.50v
VDIMM = 1.76v





System:

• Intel Core i7 980X 3951A763 B1 Step 2 ES
• EK Supreme LT H20 + TFC480 + MCP655
• Asus P6T6 WS Revolution 0609 beta bios
• Sapphire HD5870 10.3 beta
• 6GB Kingston 2000C8 (KHX2000C8D3T1K3/6GX)
• 80GB Intel X25-M G2 SSD (OS)
• 120GB OCZ Vertex SSD (DATA)
• Pioneer DVR216 Burner
• Corsair HX1000
• Windows 7 Ultimate 64bit RTM (fully updated)

[George_o/c]

Good!
7-7-7 at 2100MHz+ is always a pleasure to see

[[XC] Oj101]

I think it's great to see that these once insane speeds are almost becoming mainstream

[eva2000]

Good!
7-7-7 at 2100MHz+ is always a pleasure to see

indeed it is! I think 6-7-6-x is 2000+ capable

I think it's great to see that these once insane speeds are almost becoming mainstream

Yeah might try cas5 and see haha

[[XC] Oj101]

[eva2000]

seems 6-7-6-x head room isn't much more than 6-6-6-x at the same voltages

Played with Win7 OS for a while, so back to XP Pro SP3 for some proper Super Pi 32M action

[mrcape]

[subaruwrc]

I hope they will do 1050 7-7-7 32m stable

[eva2000]

thanks ... how about DDR3-2167Mhz 7-7-7-21 32M stable ?

My 2nd fastest PB for 32M - yeah H20 cooled only

The resulting 32M Pi time ended up my 2nd fastest PB time just behind my W3520 + DFI UT X58-T3EH8 @4794Mhz H20 time of 7min 24.422s

4769Mhz with DDR3-2167Mhz 7-7-7-21 at 1.8v for 7min 24.937s. Very close to the limits of the voltages used and/or close to my max H20 cooled i7 980X Super Pi 32M stability or could be memory limit considering this KHX2000C8D3T1K3/6GX kit did DDR3-2160mhz 7-7-7-21 at 1.78v for 32M with same i7 980X.



Finally new PB for 7-7-7-21 validation at @DDR3-2235Mhz 7-7-7-21 at 1.8v






System:

• Intel Core i7 980X 3951A763 B1 Step 2 ES
• EK Supreme LT H20 + TFC480 + MCP655
• Asus P6T6 WS Revolution 0609 beta bios
• Sapphire HD5970 OC Edition 10.4 Official Catalyst Drivers
• 6GB Kingston 2000C8 (KHX2000C8D3T1K3/6GX)
• 750GB Samsung SATAII OS
• 120GB OCZ Vertex SSD (DATA)
• Pioneer DVR216 Burner
• Corsair HX1000
• WinXP Pro SP3 nlite + Windows 7 Ultimate 64bit RTM (fully updated) dual boot OS

[Marvin82]

Nice Kit

[subaruwrc]

looking good.

[EvoCarlos]

eva these kits are great had mine since last july still going strong ive been trying to get faster and faster with them but 900ish 6-6-6-18 1.78v on air is the limit for cas 6



going to get some dice on them and see what happens

[eva2000]

Nice Kit

looking good.

thanks guys

eva these kits are great had mine since last july still going strong ive been trying to get faster and faster with them but 900ish 6-6-6-18 1.78v on air is the limit for cas 6

going to get some dice on them and see what happens

Yeah surprised how well they're doing, probably the older SKU scared everyone else off these kits with the bad Elpida Hyper batches so not as many results.



6GB Kingston 2000CAS8 KHX2000C8D3T1K3/6GX scaling tests, when I reduced the Uncore frequency multiplier from 24x to 23x - I reduced the Uncore frequency from 4128Mhz to 4071Mhz and thus managed to jump from DDR3-2064Mhz to DDR3-2124Mhz at the same voltages of 1.45v CPU VTT and 1.66v VDIMM all thanks to Core i7 980X's lower minimum Uncore to Memory ratio requirements!

6GB Kingston 2000CAS8 KHX2000C8D3T1K3/6GX
@DDR3-2124Mhz 8-8-8-24 1T at 1.66v

• 23x 177bclk = 4071Mhz cpu frequency
• 23x 177bclk = 4071Mhz Uncore frequency (cpuz reports it as NB frequency)
• 18x 177bclk = 3186Mhz QPI frequency
• 12x 177bclk = DDR3-2124Mhz memory frequency

6GB Kingston 2000CAS8 KHX2000C8D3T1K3/6GX
@DDR3-2230Mhz 8-8-8-24 1T at 1.66v

Managing to use TurboV to push bclk incrementally until I reached DDR3-2230Mhz 8-8-8-24 1T at 1.45v CPU VTT and 1.66v VDIMM !

• 23x 186bclk = 4275Mhz cpu frequency
• 23x 186bclk = 4275Mhz Uncore frequency (cpuz reports it as NB frequency)
• 18x 186bclk = 3345Mhz QPI frequency
• 12x 186bclk = DDR3-2230Mhz memory frequency

System:

• Intel Core i7 980X 3951A763 B1 Step 2 ES
• EK Supreme LT H20 + TFC480 + MCP655
• Asus P6T6 WS Revolution 0609 beta bios
• Sapphire HD5970 OC Edition 10.4 Official Catalyst Drivers
• 6GB Kingston 2000C8 (KHX2000C8D3T1K3/6GX)
• 750GB Samsung SATAII OS
• 120GB OCZ Vertex SSD (DATA)
• Pioneer DVR216 Burner
• Corsair HX1000
• WinXP Pro SP3 nlite + Windows 7 Ultimate 64bit RTM (fully updated) dual boot OS

[subaruwrc]

real good chances for tomorrow..
thank you for your feedback.

[eva2000]

How about DDR3-2305Mhz 8-8-8-24 at 1.66v air cooled memory

6GB Kingston 2000CAS8 KHX2000C8D3T1K3/6GX
@DDR3-2184Mhz 8-8-8-24 1T at 1.66v
Next step was to drop the Uncore multiplier one more step from 23x to 22x. You'd think this would by default allow higher memory clocks, but it didn't. The reason being on Asus P6T6 WS Revolution, Uncore frequency is tied to Round Trip Latency (RTL) A/B/C channels and auto adjusts to tighter RTL values as you lower the Uncore multiplier. For further reading on this check out the info about optimal Uncore to DRAM memory ratios for Core i7 980X.

So next step is to manually loosen RTL A/B/C channel values with Uncore multiplier dropped from 23x to 22x which allowed windows to boot in and pass single Super Pi 32M run @DDR3-2184Mhz 8-8-8-24 1T at same 1.45v CPU VTT and 1.66v VDIMM ! And ended up max screenshot captured clocks at DDR3-2305Mhz 8-8-8-24 1T at same voltages.

• 23x 182bclk = 4186Mhz cpu frequency
• 22x 182bclk = 4014Mhz Uncore frequency (cpuz reports it as NB frequency)
• 18x 182bclk = 3276Mhz QPI frequency
• 12x 182bclk = DDR3-2184Mhz memory frequency

6GB Kingston 2000CAS8 KHX2000C8D3T1K3/6GX
@DDR3-2305Mhz 8-8-8-24 1T at 1.66v

• 23x 192bclk = 4418Mhz cpu frequency
• 22x 192bclk = 4226Mhz Uncore frequency (cpuz reports it as NB frequency)
• 18x 192bclk = 3457Mhz QPI frequency
• 12x 192bclk = DDR3-2305Mhz memory frequency

System:

• Intel Core i7 980X 3951A763 B1 Step 2 ES
• EK Supreme LT H20 + TFC480 + MCP655
• Asus P6T6 WS Revolution 0609 beta bios
• Sapphire HD5970 OC Edition 10.4 Official Catalyst Drivers
• 6GB Kingston 2000C8 (KHX2000C8D3T1K3/6GX)
• 750GB Samsung SATAII OS
• 120GB OCZ Vertex SSD (DATA)
• Pioneer DVR216 Burner
• Corsair HX1000
• WinXP Pro SP3 nlite + Windows 7 Ultimate 64bit RTM (fully updated) dual boot OS

[JoeySupra]

clock that baby up more!!!

[tool_462]

Wish my IMC was good

Crazy clocks!

[Shiranui Gen-An]

George somehow always gets stuff that clocks like crazy.

[tool_462]

George somehow always gets stuff that clocks like crazy.

...and Joe Mauer always gets easy pitches to hit If you catch my drift...

[miahallen]

Careful bro....I just killed the same kit with 1.78V last week

[Mafio]

i run mine for 90% of their life (4 month) between 1.9 and 2 volt with no degradation
probably your is only bad luck