Help me Overclock my Patriot Memory Pc4800

[cdelatte]

Guys,

I am having the most dificult time with my Patriot memory. I thought I had bad memory, but running each chip individually I still get errors. Unfortunately Memtest 86 is of no use because it passes with flying colors. I downloaded a program called memtest by HCI and it constantly errors.

I have tried all settings to auto. I have also tried all settings specified from someone elses tccd. Nothing but errors. Here is the current specified settings.

 

fsb=300

Dram Freq= 200 1:1

CPC=Enabled or Disabled

Tcl=2.5

Trcd=4

Tras=8

Trp=4

Trc=8

Trfc=12 or default

Twr=5 or default

Trwt=3

Tref=3120

Twcl=1 or default

Dram Bank Interleave=Enabled

DQS Skew Control=Decrease or Auto

DQS Skew Value=96 or 0

Dram Drive Stregnth= Level 7 or Auto

Dram Data Drive Stregnth=Level 3 or auto

Max Async Latency=7.0 ns or auto

Read Preamble= 5.0 or auto

Idle Cycle Limit=256

Dynamic Counter=Disable

R/W Queue Bypass=16x

Bypass Max=07x or auto

32 Byte Granualarity=Disable 4 Burst

 

The value after the or is the second setup for my memory. Again I have put all these settings to auto and still have failed. Thanks for all the help beforehand.

 

 

Edited to complete specs...

[Guest FZ1]

Seems like all the PC4800 sticks are not running up to spec...having similar issue with OCZ. Which BIOS are you running?

[supershanks]

Hi cdelatte,

 

welcome 2 the forum try increasing :-

Max Async Latency=7.0 ns or auto

Read Preamble= 5.0 or auto

Opterons tend to require higher values see ixtapalapaquetl - Socket 939 - Unofficial Opteron 939 Thread - Memory

It is widely held that they are very sensitive to both read preamble and max asynchronous latency, so if you are having difficulty, try adjusting these settings. Users commonly use 9/7.5, 9/7, 8/6, and 8/5.5.

 

I've found myself that running my memory @300 requires 10/7

 

luck

[cdelatte]

Seems like all the PC4800 sticks are not running up to spec...having similar issue with OCZ. Which BIOS are you running?

 

 

I have tried fx60test and 623-3 (that's the one from dfi right?)

 

I'm going to try the read preamble and max asynch. Be back in a bit.

 

Edit...

 

I'm back and I can tell you my pc ram does not like the Read preamble on anything higher than 5.

 

Edit 2..

Don't want to be a whore :cat:

 

I tried going down with My Read Preamble to 4 instead of up and I am able to run the memory testing program by HCi longer than before :confused:

The most I ever got to was 186% and now I am at 500% and it just failed :shake: Guess I'm going to try lowering that.

[Guest FZ1]

Try 704-2BT...it is typically the best when it comes to memory.

[aspevacek]

yes my 4800BXBL's really like the BTA bioses. I am waiting for a replacement set from Patriot currently as mine will in no way shape or form run CAS 2.5 or CAS 3

They will however do 260 @ 2-3-3-6 I may even be able to tighten those timings up a tad if I tried.

[cdelatte]

What is so different in the 704-2BT bios than the others? I'm hesitant to flash, but I have Tmod's cd and can do the 704-2BT bios or that one for the OCZ memory. Are there any differences.

 

aspevacek

How did you get a replacement set from Patriot? Did you just Rma them or did you use tech support?

[supershanks]

I like 704-2BT. see LanParty NF4 BIOS - Cleaned up 704-2bt a little 4 some more info.

[Fight Game]

Try increasing these to...

Row Cycle time (Trc) - 10 Bus Clocks

Row refresh cyc time (Trfc) - 16 Bus Clocks (or 15 but probably not below)

Refresh Period (Tref) - the one just over 4000

 

And where are these?

Row to Row delay (Trrd) - ?

Write to Read delay (Twtr) - ?

[cdelatte]

Try increasing these to...

Row Cycle time (Trc) - 10 Bus Clocks

Row refresh cyc time (Trfc) - 16 Bus Clocks (or 15 but probably not below)

Refresh Period (Tref) - the one just over 4000

 

And where are these?

Row to Row delay (Trrd) - ?

Write to Read delay (Twtr) - ?

 

 

I'm sorry, I missed those two.

TRRD=5 or 3

TRWT=3 or 2

The or is the second method.

I have trc on 11 right now

I have trfc on 20

I have tref=3072

 

 

I'm trying different settings as we speak and I just had patriot email me what the defaults should be for my board. I'm going to try those also

 

 

The 704bta-2 bluescreens my pc. moved to the 623-2 and trying that one

[Fight Game]

trfc at 20 is probably way to high. You would think that higher would be better, for stability, but that's not always the case. For example my cas will only run at 2 (when freq. is 200-240) and 2.5 at anything higher than 240, but it will not work at 3 regardless. I've noticed others that simply will not work, when set too loose, also. 15 or 16 should work. Have you read the memory guide?

Two that were important for me, to be stable at any speed, wer dram drive and dram data strength. I use 8:1, but my ram is totally different chips. It seemed that regardless of any of the other settings, I just couldn't get stable on auto, or any setting but these.

 

Are you using the orange or yellow slots? You may try the other color...this has worked for many!

[sam375]

Hello guys. I also own Patriot PC4800 RAM and I own a DFI Infinity NF4 SLi board.

 

I have 4 512MB sticks of this RAM. They all will do DDR600 2.5-4-4-8 2.7V no problem as long as only one DIMM is installed (all RAM settings on "Auto"). But with more than one DIMM I cant get the system to boot past DRR560 at the rated 2.5-4-4-8, even with 2.9V. Ive tried both single and dual channel, still no luck. It seems not to be a problem with the RAM, but a problem with the memory controller of the NF4. Also, I own an Antec NEO HE 550W psu so I dont think its a power stability issue.