OC Problem with EVGA board

[Maulin]

I am having trouble raising the HTT beyond 219-221MHZ. I have the following setup
EVGA SLI mobo
Venice 3000 + xp 90 HSF
512*2 Corsaid value select ram (Probably not the best ram for overclocking)

I have my HT multi at 2x, CPU multi at 5x and ram running at 100MHZ. Then with Prime 95 running the computer freezes when I increase the FSB from Clockgen to around 219-220MHZ. I have not tried increasing any voltages yet. The cpu temp from Myguard is around 44 degrees (when I run the prime 95 torture test. Idle temp is 38). Oh, I also tried this with the HT multi at 3x, same thing happens. Any ideas why the FSB wont go higher? I'll post any additional info you need about my settings. Thanks.

 

[n7]

I don't know much about the eVGA mobo, but check thru this thread: http://forums.anandtech.com/messageview...atid=29&threadid=1668377&enterthread=y

 

[monster64]

It would make perfect sense if it just can't go higher. Youv'e reached the mobo's limit. eVGA isn't exactly know for making the best mobos around. Saying that im assuming you did all the basics like lock agp/pci/e busses, put any sata drives in 3/4 instaed of ports 1/2, try increasing the vcore, etc.

 

[Maulin]

 

[Maulin]

I've been reading about a lot of people over at hardocp with this board getting very good overclocks. I have not tried to increase any voltages but I was thinking that getting the FSB over say 220 should happen fairly easily without having to increase the voltages. yes the HDD is in sata 3 and the pci/e bus is locked, atleast thats what clockgen shows.

 

[Furen]

have you tried skipping all the way up to 230 or so? Also, did you change your htt in the bios? I think you need to set it to 201 to lock the PCI/PCIe busses.

 

[Maulin]

have you tried skipping all the way up to 230 or so? Also, did you change your htt in the bios? I think you need to set it to 201 to lock the PCI/PCIe busses.

NO I havent skipped all the way to 230. I'll try that but why would that work? i dont understand what you mean by

I think you need to set it to 201 to lock the PCI/PCIe busses

In clockgen it shows the pci/e bus as locked

 

[mrkun]

When I was using BH5, I had to increase the vdimm just to get the board to boot at higher FSB, even while running on a 1/2 divider.

 

[Furen]

Originally posted by: Maulin

NO I havent skipped all the way to 230. I'll try that but why would that work? i dont understand what you mean by

I think you need to set it to 201 to lock the PCI/PCIe busses

In clockgen it shows the pci/e bus as locked

I'm just giving you things to try out. Some older motherboard had problems with 220-230 htt (though I think it was a chipset issue more than anything, so this may not apply to nforce4 mobos). I've also heard that some motherboards (the Asus AN8, I think) require you to set the htt to 201 or more in the bios prior to using clockgen, but I'm not absolutely certain about this either.

EDIT: Also try another memory divider and I'd stick to 3x HT multiplier, since some mobos have problems with 2x.

 

[Rudee]

Originally posted by: monster64
It would make perfect sense if it just can't go higher. Youv'e reached the mobo's limit. eVGA isn't exactly know for making the best mobos around.

The EVGA boards are made by Jetway, and they have been getting great overclocking results. Even Anands review of the Jetway board indicated some of the best overclocks he's ever had using this board. Also, EVGA has a new bios update for their N41 SLI boards.

 

[Hacp]

Use the Jetway bios. Then try again.

 

[Maulin]

OK, so i set the HT to 800 and ram to 166 and I was able to get the fsb to 243 before Prime crashed, it might be because the ram was then running at 205. its corsairs value select ram and so maybe it dosent like running at 205. i havent increased any voltages yet so I am sure the fsb can go higher. This time i'll try setting the ram to 133 to start with. Thanks for all the help guys.

 

[AMDCrazy]

Here are my settings:

10x multiplier

3x HT

166 memory divider

250 fsb

1.5+ vcore.

try them I am at 2.5ghz on my 3500+ stable with SLI enabled.

 

[theMan]

also, bring the vdimm up to 2.7v or maybe higher.

 

[Maulin]

OK, so I set the HT to 800mhz, cpu multi to 5x and ram at 166. for some reason my computer will not boot windows if ram is set at 133MHZ. With the above setup I can increase the fsb upto 242 from clockgen at around 243 Prime errors out or the computer reboots.
I've tried increasing the chipset and LTD voltages. I also increased the vdimm to 2.85 almost tried all combinations with the voltages but its always the same result when the fsb reaches around 242 MHZ. I am using corsairs 512*2 value select ram. Could it be the ram? is there some other setting I am missing? Also will a PC overclock better if the ram is single channel or dual channel? does it matter?

 

[rickn]

i run HTT of 295 on my board. what speed are you looking to get out of your chip?

 

[Avalon]

Originally posted by: Maulin
OK, so I set the HT to 800mhz, cpu multi to 5x and ram at 166. for some reason my computer will not boot windows if ram is set at 133MHZ. With the above setup I can increase the fsb upto 442 from clockgen at around 443 Prime errors out or the computer reboots.
I've tried increasing the chipset and LTD voltages. I also increased the vdimm to 2.85 almost tried all combinations with the voltages but its always the same result when the fsb reaches around 442 MHZ. I am using corsairs 512*2 value select ram. Could it be the ram? is there some other setting I am missing? Also will a PC overclock better if the ram is single channel or dual channel? does it matter?

Try flashing your eVGA board with the Jetway 939GT4 BIOS. They appear to be the same exact motherboard, and Jetway has already admitted to producing eVGA's boards. Supposedly people with the eVGA boards are getting a good ammount of success by doing this, so it's something to think about trying if your normal methods don't yield any further results.

BTW, 442HTT is pretty slick.
A $50 Sempron Palermo 2500+ in a board that could do that...would be the undisputed king of P/P. And I know those Palermos can reach excellent clocks, too.

 

[rickn]

Originally posted by: Avalon

Originally posted by: Maulin
OK, so I set the HT to 800mhz, cpu multi to 5x and ram at 166. for some reason my computer will not boot windows if ram is set at 133MHZ. With the above setup I can increase the fsb upto 442 from clockgen at around 443 Prime errors out or the computer reboots.
I've tried increasing the chipset and LTD voltages. I also increased the vdimm to 2.85 almost tried all combinations with the voltages but its always the same result when the fsb reaches around 442 MHZ. I am using corsairs 512*2 value select ram. Could it be the ram? is there some other setting I am missing? Also will a PC overclock better if the ram is single channel or dual channel? does it matter?

Try flashing your eVGA board with the Jetway 939GT4 BIOS. They appear to be the same exact motherboard, and Jetway has already admitted to producing eVGA's boards. Supposedly people with the eVGA boards are getting a good ammount of success by doing this, so it's something to think about trying if your normal methods don't yield any further results.

BTW, 442HTT is pretty slick.
A $50 Sempron Palermo 2500+ in a board that could do that...would be the undisputed king of P/P. And I know those Palermos can reach excellent clocks, too.

he can't possibly be running an HTT of 442, the hard limit is 400 on these boards. maybe he means 442mhz DDR rate

 

[Avalon]

Oops, got confused and thought he was talking about HTT frequency. Sorry.

 

[Maulin]

OOPS, haha. my bad....I cant get over 242 fsb....that 442 was a typo...sorry. So any clue as to why the fsb wont go over 242?