*** Official ABIT IS7/G/E (865PE) Thread ***

[NordicNINE]

I've tried three different types of memory and this Kingston PC3500 is plenty good enough.

ALL of them have problems running at 5:4. I don't remember all of these problems on other 865/875 boards.
So, it must be an Abit issue. Something they should fix in a BIOS update or by giving new boards. If a company advertises itself as a high overclocker and great enthusist board, they should have better stability when overclocking.

 

[IntelInsideIdiotOutside]

k DPS, thanks for that info. I'm less worried now
Though its still kind of strange it makes such a big diference dont you think. Maybe something to fix in the bios? or winbond!

 

[Tom]

Not really. Personally I think Abit's temps are more accurate, given the operating temps Intel says these chips work at.

NordicNINE- forums here and elsewhere are full of people having "memory problems" with Springdales and Canterwoods from all manufacturers, and there are also lots of people who don't have problems. That is a normal situation in an overclocking community.

 

[eternalpeace]

hey guys,

How EXACTLY do you go about activating PAT on the IS7? I have assumed that you just have to set GAT to either speed racer or F1. Am I correct? I know you can use CPUZ to check, but my ghetto corsair 3200c2 won't boot with ANY GAT settings on, even with all timings extremely loose, so until I get new ram, help me out.

Also, what exactly does GAT DO?

 

[NordicNINE]

Originally posted by: Dead Parrot Sketch
Not really. Personally I think Abit's temps are more accurate, given the operating temps Intel says these chips work at.

NordicNINE- forums here and elsewhere are full of people having "memory problems" with Springdales and Canterwoods from all manufacturers, and there are also lots of people who don't have problems. That is a normal situation in an overclocking community.

I guess I'm pretty happy using 3:2 since I can get 3.0Ghz out of a 2.4C. I can enable all the GAT stuff, so it's not so bad. I did a bunch of testing at different speeds, GAT settings, and ratios on mine and found 250FSB & 3:2 yielded the best speeds with no stability problems. Not bad I guess. I really wish I could get the max out of the memory though.

 

[RaymondY]

On my Corsair XMS3200LL memory, I could not get GAT=Street Racer or Turbo or F1.

However, by playing with my memory settings (2-3-3-7) with command per clock = disabled, I was able to get GAT = F1 with no stability issues

Try relaxing your memory timing.

BTW: my vdimm = 2.65

Hope this helps

 

[IntelInsideIdiotOutside]

I just ran 3.0 using 3:2. Not bad, but it has to do better. More tweaking from my side in the near futurue.

 

[orion7144]

Originally posted by: RaymondY
On my Corsair XMS3200LL memory, I could not get GAT=Street Racer or Turbo or F1.

However, by playing with my memory settings (2-3-3-7) with command per clock = disabled, I was able to get GAT = F1 with no stability issues

Try relaxing your memory timing.

BTW: my vdimm = 2.65

Hope this helps

There is a thread over at Abit forums started buy Thugs (Not sure if it is the same one here) that is quite interesting. He is saying that all these memory problems may be due to the fact that the memory timings are backwards. i.e. 2-2-2-6 is actuall 3-2-2-6 and 3-2-2-6 is actuall 2-2-2-6. This would make sense in the fact that the people that have played alot with their memory end up with F1 or street racer working at 2-2-2-6 but not work at the supossedly slower setting of 3-2-2-6. On my days off later this week I will be testing this theory as I still have an extra set of OCZ PC3500EL and a set of Kingston HyperX PC4000 (someone back out of a deal twice on this memory :disgust: ) And maybe my OCZ PC3700 Gold will be able to go higher than 250 @ 1:1

 

[computer]

David see my post on page 16 of this thread where I quote the Anandtech mobo roundup and IS7 settings.

 

[eternalpeace]

hey guys,

I'm running 2x256 OCZ PC3200 Platinum EL that came in a kit with a 2.4c and a IS7. CPUZ says that whenever I set GAT to turbo or speed racer (haven't tried F1), that the ratio turns into 5:4, even though I specifically set it to 1:1 in BIOS. So as a consequence, my ram runs at 160 when the fsb is at 200. This is all according to CPUZ.

Is anyone else experiencing this?

thanks

 

[IntelInsideIdiotOutside]

oh well, I guess my Corsair TwinX 3700 is 2 "relaxed" (read lazy) to run Turbo or F1. No need to try Street racer I guess

 

[computer]

Yes thats correct. But I have the IS7-E, this board also runs at 400 and 533, so my old 1.6a runs on it.

That's odd. The Abit websites doesn't mention 400mhz support for any of the IS7 series, they only say 533/800mhz.

I KNOW the Corsair TwinX 3200LL will run 278mhz in the IS7 and IS7-G since that's the memory that was used and the speed for the OC'ing tests at the Anand review. The settings they used for the IS7 & G to accomplish that are in the quote I posted from the review.

Tom, That's pretty incredible getting 280mhz from PC2700 Samsung! Wow. Do you remember where you got it, and the chip ID numbers? Was it sold as "Samsung" or some other brand with Samsung chips?

 

[Tom]

Are you talkin' to me ? my Samsung is some real Samsung modules I got a while ago packaged by PNY, I think one came from Staples and one from CompUSA. It's not all that unusual to overclock Samsung's real DDR333 up to DDR370 which is all that it needs to do at 280FSB with a 3:2 ratio.

 

[computer]

Yes thanks. I got tired of typing or pasting "Dead Parrot Sketch" and I didn't know if you liked "Monty".

I need to learn about these memory dividers. Know of any link(s)? I guess a 1:1 ratio would mean in your case true 280mhz for the memory? I was thinking along the lines of DDR400=200mhz, so your 280mhz was (or so I thought) running as DDR566/PC4500 roughly.

 

[NordicNINE]

Originally posted by: computer

Yes thats correct. But I have the IS7-E, this board also runs at 400 and 533, so my old 1.6a runs on it.

That's odd. The Abit websites doesn't mention 400mhz support for any of the IS7 series, they only say 533/800mhz.

I KNOW the Corsair TwinX 3200LL will run 278mhz in the IS7 and IS7-G since that's the memory that was used and the speed for the OC'ing tests at the Anand review. The settings they used for the IS7 & G to accomplish that are in the quote I posted from the review.

Tom, That's pretty incredible getting 280mhz from PC2700 Samsung! Wow. Do you remember where you got it, and the chip ID numbers? Was it sold as "Samsung" or some other brand with Samsung chips?

The 865PE does support 400, 533, and 800.
The 865P & 865G do not.
I don't think the 875 does either.

 

[porkbun]

I use the 800 MHz strap on my IS7-E with CPC disabled. PAT is off, as indicated by ctiaw and cpu-z. Is there anyway to enable PAT? How should I set the BIOS? Details of my current settings are below.

FSB: 300 MHz
FSB:RAM: 3:2
CPC: Disabled
GAT Settings: All AUTO except CPC
Timings: 2-5-3-3

Thanks.

 

[Tom]

Originally posted by: computer
Yes thanks. I got tired of typing or pasting "Dead Parrot Sketch" and I didn't know if you liked "Monty".

I need to learn about these memory dividers. Know of any link(s)? I guess a 1:1 ratio would mean in your case true 280mhz for the memory? I was thinking along the lines of DDR400=200mhz, so your 280mhz was (or so I thought) running as DDR566/PC4500 roughly.

You must have missed something or maybe I didn't mention it, I'm using a 3:2 ratio so my memory is running at DDR370.

 

[IntelInsideIdiotOutside]

Originally posted by: computer

Yes thats correct. But I have the IS7-E, this board also runs at 400 and 533, so my old 1.6a runs on it.

That's odd. The Abit websites doesn't mention 400mhz support for any of the IS7 series, they only say 533/800mhz.

Second from the top!?!?! It says 400/533/800 (same in my manual). And my 1.6a just booted up fine.

 

[orion7144]

Originally posted by: porkbun
I use the 800 MHz strap on my IS7-E with CPC disabled. PAT is off, as indicated by ctiaw and cpu-z. Is there anyway to enable PAT? How should I set the BIOS? Details of my current settings are below.

FSB: 300 MHz
FSB:RAM: 3:2
CPC: Disabled
GAT Settings: All AUTO except CPC
Timings: 2-5-3-3

Thanks.

You will not get PAT enabled unless you are running 1:1. Of course there have been some people who say they have. I have tried 6 combinations of memory and all different BIOS settings and the only time PAT was enabled was when I was at 1:1. No on my IC7-G PAT is always on.

 

[NordicNINE]

I think others can get ratios besides 1:1 to work if they disable CPC.

I can get it enabled to Street Racer with 3:2 on a 250MHz bus with no options disabled.

I can't get anything to work stable with 5:4, it will boot, but it's very unstable.
If I turn on any GAT at all it won't boot, even if I put it on Turbo and disable CPC.

 

[Nucleas]

Guys, I see many can do 200-250FSB, but PLS MENTION UR STOCK SPEED and new CPU speed. I just wonder how far I can push my P4 2.4B with 800FSB strap. So far I can push to 2.9GHz with stock core voltage. Mine is still far away from 200FSB. I wonder how u can get that high? I think u guys r using P4 C type and higher stock CPU speed. I set CPU/DRAM ratio at 1:1 with GAT F1(2.5-7-3-3).

Is 5:4 ratio better?

I tested Fifa 2003 again with new speed (2.9GHz) for 3 hours. It's smooth. I heard pushing my CPU speed won't burn my P4 as long as V core is low(I prefer at stock V core).

 

[computer]

Hmmm, Ok. I was looking at Abit's motherboards pages here and when you click the IS7/E/V links from there, then the "Specifications" they didn't list 400mhz FSB support. (They have just added it though to the pages for the IS7-G and IS7-M boards!) I believed you (or whomever orginally mentioned it) I just though it was odd it wasn't on the Abit mobo specs pages.

You must have missed something or maybe I didn't mention it, I'm using a 3:2 ratio so my memory is running at DDR370.

No, that much I got, my problem is I don't know what these "memory dividers" (I guess they are called) mean.
I need to learn about these memory dividers. Know of any link(s)?

 

[computer]

Orion have you done any direct comparisions yet........

Orion I was going by the sites that have compared the IC7 series mobo's to the IS7 series. The IS7 is always faster expect for two tests I saw from the link of that review above where the IC7x beat it. The test starts here . The two tests the IC7x was faster is the "High end workstation performance", "SpecViewperf 7.0-DRV-08" and "SpecViewperf 7.0-Light-05". They were using the settings in the quote above for the IS7. If you can set yours to those settings, please let us know how that affects its performance, I know many would be interested. I haven't gotten a 865/875 mobo yet, and I've pretty much decided on the IS7 or IS7-G. I first considered the IC7-G, but since I don't need CSA LAN, and the IS7 was faster (using correct settings), the IS7 seemed to be the more appropriate choice.

 

[Tom]

"No, that much I got, my problem is I don't know what these "memory dividers" (I guess they are called) mean.
I need to learn about these memory dividers. Know of any link(s)? "

Memory dividers allow the cpu to run at one bus speed and the memory to run at a different bus speed. My computer for example uses a 3:2 ratio..

My cpu is running at 280FSB. (Default speed is 2.4g at 200fsb. overclocked it's at 3.36g)

My memory is running at 187FSB (actually it's 187 times 2 or 373, because it's DDR double data rate. or DDR373)

multiply my cpu fsb, 280, times 3/2, and you get 187fsb.

If I used a 5:4 ratio multiply 280 times 5/4 you get 224.(this would be DDR448, which my memory won't do.)

If I used a 1:1 ratio multiply 280 times 1/1 you get 280 (DDR560, which almost no memory could do)

So that is how memory ratios can help overclock. It lets you overclock the processor to higher speeds while not pushing your memory beyond it's capabilities.

 

[computer]

All of that I knew except for that one area about the 3:2 and 5:4 dividers and how that worked exactly, and thanks for that info.