Why can't I overclock???

[CreativeTom]

Hi just put together a new rig with a DFI Ultra-D board, 3700+ San Diego and 2x1GB of OCZ Platinum EL.

I have tried everything to get this thing to overclock, the only thing stable i get is just by touching the FSB to 210 and leaving everything else alone (gives me 2.31Ghz).

If I adjust anything else I can't start the machine, it either crashes before it tries to load the OS, or it tries to load the OS and then I get a screen before it boots to say that the required DLL's are missing for the KERNEL.

I found someone elses specs for a simple 2.5 OC, I used those settings and I get the DLL message when it tries to start XP, the settings I used are as follows.....please help me!!!!!

My setting are as follows...

FSB Bus Frequency: 230
LDT/FSB Ratio: Auto
CPU/FSB Ratio: x11
CPU Vid StartUp Value: StartUp

CPU VID Control: 1.550v
CPU VID Special Control: Auto
LDT Voltage Control: 1.20v
Chip Set Voltage Control: 1.50v
DRAM Voltage Control: 2.90v

DRAM Frequency Set (Mhz): 200
Command Per Clock (CPC): Enable
CAS Latency Control (Tcl): 2.5
RAS# to CAS# delay (Trcd): 04
Min RAS# active time (Tras): 06
Row precharge time (Trp): 03
Row cycle time (Trc): 7
Row refresh cyc time (Trfc): 16
Row to Row delay (Trrd): 02
Write recovery time (Twr): 02
Write to Read delay (Twtr): 02
Read to Write delay (Trwt): 02 (03 can increase
stability)
Refresh period (Tref): 4708
Write CAS Latency (Twcl): Auto
DRAM Bank Interleave: Enabled


DQS Skew Control: Auto
DQS Skew Value: 0
DRAM Drive Strength: Level 7 (Auto can increase
stability)
DRAM Data Drive Strength: Level 2
Max Async Latency: 08.0 ns (09.0 ns can increase
stability)
Read Preamble Time: 05.0 ns
IdleCycle Limit: 016
Dynamic Counter: Disable
R/Q Queue Bypass: 16X
Bypass Max: 07X
32 Byte Ganularity: Disable(8 Bursts)

 

[Shimmishim]

its prolly because you're using 2 x 1 gig sticks and they can't do 230 htt 1:1

go to dram frequeny and set it to 166.

taht should fix your problem.

also set tref to 3120

 

[JohnAn2112]

Also, LDT/FSB Ratio: 4x instead of AUTO.

 

[CreativeTom]

I will try those things thanks

 

[CreativeTom]

OK these are updated specs, I will run memtest to see if it's all stable now.

Should I hope for more then 2.6Ghz my temps are awesome 33c idle now.

My setting are as follows...

FSB Bus Frequency: 260
LDT/FSB Ratio: Auto
CPU/FSB Ratio: x10
CPU Vid StartUp Value: StartUp

CPU VID Control: 1.550v
CPU VID Special Control: Auto
LDT Voltage Control: 1.20v
Chip Set Voltage Control: 1.50v
DRAM Voltage Control: 2.90v

DRAM Frequency Set (Mhz): 166
Command Per Clock (CPC): Enable
CAS Latency Control (Tcl): 2.5
RAS# to CAS# delay (Trcd): 04
Min RAS# active time (Tras): 06
Row precharge time (Trp): 03
Row cycle time (Trc): 7
Row refresh cyc time (Trfc): 16
Row to Row delay (Trrd): 02
Write recovery time (Twr): 02
Write to Read delay (Twtr): 02
Read to Write delay (Trwt): 02 (03 can increase
stability)
Refresh period (Tref): 3120
Write CAS Latency (Twcl): Auto
DRAM Bank Interleave: Enabled


DQS Skew Control: Auto
DQS Skew Value: 0
DRAM Drive Strength: Level 7 (Auto can increase
stability)
DRAM Data Drive Strength: Level 2
Max Async Latency: 08.0 ns (09.0 ns can increase
stability)
Read Preamble Time: 05.0 ns
IdleCycle Limit: 016
Dynamic Counter: Disable
R/Q Queue Bypass: 16X
Bypass Max: 07X
32 Byte Ganularity: Disable(8 Bursts)

 

[Shimmishim]

for now leave drive strength at auto.

set LDT to 3x since you're above 250 now.

 

[klah]

Did you already do THIS?

What are your max htt, cpu and mem results.

 

[GuitarDaddy]

You should be able to get 2.8ghz pretty easy with that 3700+, mine and most that I've seen run at 2.8ghz or above. Like Shim said change the LDT to 3x, and also drop the DDR freq to 133 if you go much higher with the HTT. Or leave it at 166 and try 250 x 11 = 2750mhz and go up from there.

 

[jpeyton]

Originally posted by: GuitarDaddy
You should be able to get 2.8ghz pretty easy with that 3700+, mine and most that I've seen run at 2.8ghz or above. Like Shim said change the LDT to 3x, and also drop the DDR freq to 133 if you go much higher with the HTT. Or leave it at 166 and try 250 x 11 = 2750mhz and go up from there.

2.8GHz isn't a gimme with any AMD processor on air cooling, short of the FX55/57. Depends a LOT on CPU week/batch code. Sometimes you get winners, and sometimes losers.

 

[Furen]

you could stay at 2.6 and try lowering your vid (I like staying low )

 

[GuitarDaddy]

I have yet to see a 3700+ that doesn't O/C well