Can't get Kingston DDR2 8500 stable

1950 Views 20 Replies 6 Participants Last post by BCC, Dec 9, 2009

Bolus

Discussion Starter · Dec 7, 2009

Hi there,

I've been trying to get my kingston KHX8500D2T1K2/4G stable, but it won't work. My system is down below.

The only setting stable is the following:
- Everthing standard settings.
- RAM 800mhz
- health status reading: RAM voltage 2.000v (appearently this is standard? I thought this supposed to be 1.8v?)

The following is not stable:
- Timings 5-5-5-15 (according to datasheet)
- FSB 333 -> CPU 2.66ghz
- Set multiplier to 3.2 -> 1066mhz
- Set DDR2 voltage +0.3 -> health status reads 2.416v - not stable
- Add + 0.2v on MCH - not stable

I've been running 3.6ghz @ 1.4vcore with ballistix at 900mhz for years and stable, so I tried the following:

- Timings 5-5-5-15 (according to datasheet)
- vcore @ 1.4v
- FSB @ 450 -> CPU 3.6ghz
- Multiplier 2.0 -> 900mhz RAM
- DDR2 voltage + 0.2v / + 0.3v / + 0.4v -> Not stable
- MCH + 0.2v -> Not stable

I'm clueless, it should work fine with setting the timings right and upping the voltage on the RAM right?

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1 - 20 of 21 Posts

deerleg

· #2 · Dec 7, 2009

there is a problem with the manyafturing of that tipe of ram sum times the ram is labeled wrong it may be down to 667 i know sum one who had the same problem try turning down the timing

deerleg

· #3 · Dec 7, 2009

you could moste likely git it in the 950s but not 1066

Bolus

Discussion Starter · #4 · Dec 7, 2009

As you can see I tried setting it to:
- 900mhz 5-5-5-15
- + 0.4v DDR2
- + 0.2v MCH

That isn't stable, so what else is there to try if it can't do the above stable?

deerleg

· #5 · Dec 7, 2009

i am a lot better OC with AMD the intel so i cant rilly help that much. try changing the NB frequency

esocid

· #6 · Dec 7, 2009

Quote:

Originally Posted by deerleg

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there is a problem with the manyafturing of that tipe of ram sum times the ram is labeled wrong it may be down to 667 i know sum one who had the same problem try turning down the timing

Normally I overlook misspellings and poor grammar, but seriously?

On topic, have you tried upping your NB voltage? Intels are still running NBs, right?

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deerleg

· #7 · Dec 7, 2009

Quote:

Originally Posted by esocid

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Normally I overlook misspellings and poor grammar, but seriously?

On topic, have you tried upping your NB voltage? Intels are still running NBs, right?

i am sorry but i am dislexic i cant spell but i am perfectly capable of OC computers if you have sum thing wrong with that keep it to yourself

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Bolus

Discussion Starter · #8 · Dec 7, 2009

I upped MCH, that is the Northbridge right? Do I need to up it to + 0.3? (that is the max!)

deerleg

· #9 · Dec 7, 2009

it never hurts to try but save your cmos settings 1st because you may need to reset it if its to on stable and try OC the frequency if you can

AMD2600

· #10 · Dec 7, 2009

deerleg Wrote:

Quote:

i am sorry but i am dislexic i cant spell but i am perfectly capable of OC computers if you have sum thing wrong with that keep it to yourself

You aren't doing too bad for being Dyslectic. Put a bigger cooler on that 955
and you can get 3.8ghz stable.

4GB 1066MHz DDR2 Non-ECC CL5 DIMM (Kit of 2) T1 Series
Detailed Specifications: Standard 256M X 64 Non-ECC 1066MHz 240-pin Unbuffered DIMM (DDR2, 2.2V, CL5, Gold) (Datasheet)
Mfgr's System P/N's: N/A
Form Factor: Memory Module
Pieces/Unit: 2 (Two 2GB modules, totaling 4GB)
Warranty: Lifetime

Make sure all TRFC settings are the same. All other Ram settings Auto for now.

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deerleg

· #11 · Dec 7, 2009

Quote:

Originally Posted by AMD2600

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deerleg Wrote:

You aren't doing too bad for being Dyslectic. Put a bigger cooler on that 955
and you can get 3.8ghz stable.

Kingston's value ram doesn't oc very well.

i have giten it to 4ghz and bootable but not stable wit 3.8ghz is stable for me but i dont need that much power and i dont have a 8 pin cpu connector. but i ordered on yesterday i want the cooler master v10 but will not fit in my antec 300

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Bolus

Discussion Starter · #12 · Dec 7, 2009

Quote:

Originally Posted by AMD2600

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deerleg Wrote:

Make sure all TRFC settings are the same. All other Ram settings Auto for now.

Where can I find these? I download the datasheet but it doesn't say:
http://www.valueram.com/datasheets/KHX8500D2T1K2_4G.pdf

I have the following advanced timing settings, I hope you can help me

Act to Act delay: 3
Rank write to read delay: 3
Write to precharge delay: 6
Refresh to act delay: 52
Read to precharge delay: 3
Static tRead value: 7
Static tRead phase adjust: 17

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2

AMD2600

· #13 · Dec 7, 2009

From Mushkin forums:

CAS Latency Time = tCL
DRAM RAS# to CAS# Delay = tRCD
DRAM RAS# Precharge = tRP
Precharge delay (tRAS) = tRAS
ACT to ACT Delay (tRRD) = tRRD
Rank Write To READ Delay = tWTR
Write To Precharge Delay = tWR
Refresh To ACT Delay = tRFC
Read To Precharge Delay = tRTP

Set Refresh To ACT Delay on all dimms to 127.5ns or higher. Also set ram to 1066mhz.

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Bolus

Discussion Starter · #14 · Dec 7, 2009

Ok so do I need to calculate nano seconds to clocks? Or are the numbers nanoseconds?

AMD2600

· #15 · Dec 7, 2009

Bolus Wrote:

Quote:

Ok so do I need to calculate nano seconds to clocks? Or are the numbers nanoseconds?

Leave timings as is. For TRFC I set all dimms to 195ns. You may have to do the same if unstable with 127ns.

Set the basic timings:

Cas=5
TRCD=5
TRP=5
Tras=15

These are measured in clock ticks not in ns.

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Bolus

Discussion Starter · #16 · Dec 8, 2009

Ok I will try this evening, I'm at my work right now. I thought the TRFC was in CPUZ displayed in clocks, so I was wondering if I should calculate nanoseconds to clocks.

I will set TRFC to 128 this evening and check if it works.

Bolus

Discussion Starter · #17 · Dec 9, 2009

Hi AMD2600,

I tried setting refresh to act delay to 128 and 195, unfortunately it was not stable. Any more ideas?

marsey99

· #18 · Dec 9, 2009

have you tried it with your cpu @ stock?

Bolus

Discussion Starter · #19 · Dec 9, 2009

Yep tried it all on stock settings for CPU / FSB.

Just got off the phone with someone from Kingston. He said we sell them at 800mhz so it's not guatanteed to run properly at 1066. What a lowsy excuse, I told him it's written all over the package and even in the manual it sais it has been tested stable at 1066 2.2 volts.

AMD2600

· #20 · Dec 9, 2009

Try running the Ram at 800mhz with 4-4-4-12 timings. Get the CPU stable first using Prime95 and then move on to the blend test.

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