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Need help OC'ing OCZ DDR400 RAM

A

at0msk

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Oct 27, 2008
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I've recently installed 4GB of OCZ DDR400 PC3200 RAM. Previously I only had 2GB. CPU-Z would report the following and Vista gave my RAM a performance rating of 5.9.
RAMTime4.jpg


After adding 2GB more to up the RAM in my system to 4GB I had to drop the BIOS to defaults for RAM and now Vista reports my RAM as 4.8 based on the timings. The current CPU-Z captures are as follows along with BIOS shots. I'm not sure how to do it but I would like assistance OC'ing this RAM if possible. Even if just by a little.

Current Memory Timings and CPU
cpuMemory.jpg
cpuMemory2.jpg


BIOS:

CPU
bIOS001.jpg


DDR Voltage Menu
bIOS002.jpg


Memory Settings (not current)
bIOS003.jpg


ASUS A8N-SLI Premium board, 1303 BIOS

Any help would be greatly appreciated.
 
I can't remember what the safe voltage levels for DDR1 were (2.7?), but bump the voltage and see if it can clock higher. As the bus speed increases, more chipset voltage may be required.
 
so did someone OC this rig for you or whats the deal?

If you go into bios and reset the same setings you had previously the ram should run at 255MHz again, as long as the 4 sticks play well together.

First of all I would OC the second set by itself and see if it was capable of running the same spec as the first set. At that point you should already have the timings and voltages from before to use.

The screenshots show
#1 timings that they used to run at...those need to be set in bios.
#2 tighter timings set by SPD on the ram...why they wont OC well.
#3 only thing is as said before, may need to bump the chipset voltage to suppord 4GB of ram.
#4 I say 2.8-2.85V without a fan.
#5take timing mode and set it to manual, then apply the timings from image #1. Also you need to change the memory divider to run 1:1 with the FSB again to achieve this.
 
The chipset voltage only goes to 1.6. :( I do not think there is hope. :(
 
what was CPU speed before? (bus and mult)
 
heres what im running mine at, cpu speed is meant to be 2750(250x11) default is 2200(200x11)
2.8v is default for these sticks


2009-01-11_022244.jpg
 
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spud107 said:
heres what im running mine at, cpu speed is meant to be 2750(250x11) default is 2200(200x11)
2.8v is default for these sticks


2009-01-11_022244.jpg
Click to expand...

Sigh. I've tried. Thanks for all of your suggestions. I'm not sure what the problem is. The system either halts at BIOS or Windows reports a corrupt/missing system file until I set the default timings for the RAM. :(

Edit: I forgot to set the Read to Write Delay to 4T from 6T when trying spud's timings. Would that have made a difference though?
 
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I seriously think the second set of ram isnt as capable as the first set you started with. Possibly the Ram doesn't even have the same IC's. As I stated, test both kits seperatly before you try to run it all at once.

If my hunch is correct one set will clock as it did before and the other will not clock near as far.
 
sneekypeet said:
I seriously think the second set of ram isnt as capable as the first set you started with. Possibly the Ram doesn't even have the same IC's. As I stated, test both kits seperatly before you try to run it all at once.

If my hunch is correct one set will clock as it did before and the other will not clock near as far.
Click to expand...

I see what you're saying there. The only thing I'm getting caught up on is that these aren't just similar sets of RAM from the same manufacturer. They are the same. I bought two, saved, bought two more. I'm not mixing RAM here.

*I did try spud's timings to the letter. Windows just reported a corrupt system file.
 
Well as it is in the ram world, IC's can last for months as the same chips or weeks depending on how much they bought for a run. They may be the exact same kit by part number, but as production moves down the road, memory manufacturers can swap the IC even if its just a revision. Also not every part is created equal. The ram is sold as DDR PC3200. this means it is only spec'd to run that, no guarantee that every set of ram they make clocks the same.
 
sneekypeet said:
Well as it is in the ram world, IC's can last for months as the same chips or weeks depending on how much they bought for a run. They may be the exact same kit by part number, but as production moves down the road, memory manufacturers can swap the IC even if its just a revision. Also not every part is created equal. The ram is sold as DDR PC3200. this means it is only spec'd to run that, no guarantee that every set of ram they make clocks the same.
Click to expand...

So disappointing to not get what you paid for. :( I can't say either way here. I'll just chalk it up to that and leave this alone. I'm just happy it runs at DDR400.
 
at0msk said:
So disappointing to not get what you paid for. :( I can't say either way here. I'll just chalk it up to that and leave this alone. I'm just happy it runs at DDR400.
Click to expand...
as i see it you did get what you paid for. You have it running ddr400 and you paid for ddr400 everything else after that is just a bonus
 
p_o_s_pc said:
as i see it you did get what you paid for. You have it running ddr400 and you paid for ddr400 everything else after that is just a bonus
Click to expand...

touche, sir, touche

To clarify though, I would expect to get the exact item. No revisions hidden behind the same model number. Just 100% exactly the same. As one would expect from a production line.
 
sneekypeet said:
Well as it is in the ram world, IC's can last for months as the same chips or weeks depending on how much they bought for a run. They may be the exact same kit by part number, but as production moves down the road, memory manufacturers can swap the IC even if its just a revision. Also not every part is created equal. The ram is sold as DDR PC3200. this means it is only spec'd to run that, no guarantee that every set of ram they make clocks the same.
Click to expand...

As a consumer, I say better QA on the manufacturers part. When you get down to it, even the slightest change to a product warrants notice. If I buy RAM A and then a few weeks later buy a second set of RAM A but the manufacturer made a revision it's not RAM A anymore and should be sold as such. When I buy a second set of RAM A, I want a second set of RAM A not RAM A revision 3.4.5.3zalphapoop. I see this as false advertising and not getting what I paid for.
 
spud107 said:
dont know if you seen this page,
http://www.ocztechnologyforum.com/forum/showthread.php?t=15898

i got the settings for mine from here,(http://www.ocztechnologyforum.com/forum/showthread.php?t=19883) but i used the timings from a pc4000 set.
Click to expand...

That's cool. I see this post here: http://www.ocztechnologyforum.com/forum/showpost.php?p=129912&postcount=3

Do I have to mirror the Jumper Free Configuration?

Current CPU Configuration

Timing Mode: Auto
Memclock index value: 333 mhz
Cas latency (TCL) : 2.5
Min ras active time (TRAS) : 5
Ras to Cas delay (TRCD) : 3
Row precharge time (TRP) : 2
Row Cycle time (TRC) : 19
Row refresh cycle time (TRFC) : 21
Read-to-write time (TRWT) : 6
Write recovery time (TWR) : 2
1T/2T memory timing : 2
S/W Dram over 4gb remapping : Enabled
H/W Dram over 4gb remapping : Enabled

Hyper transport frequency : 4
Amd K8 Cool'nQuiet : Disabled

Current Jumper Free Config:

Overclock profile: Manual
CPU frequency : 255
PCI Express : 100mhz
DDR voltage : 2.8
Chipset voltage : 1.5
HT voltage : 1.20
CPU multiplier : 11
CPU voltage : 1.450
PCI clock syncronization mode : Auto
 
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Try your chipset voltage up a notch. Sorry it's been a long tme since I OC'd DDR1. Try for 3-3-3-8 and work your way from there.
 
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