Geil Ultra PC3500 results.....

[Duvie]

Well now that I have got the fsb hammered down on the new p4c chip I started to tweak memory and look atwhat cas timings and what combination of memory speed and ratio gave me the optimal performance.....


Trying to rule out memory limitations as my reason for no GAT options working even at a relatively low 400mhz ddr speed I set out to se what the sticks could do 1:1......

216fsb= 433mhz ddr-----memtested 5 passes 2,7,3,3 rated specs---5270's
w/ CPC enabled and Turbo....

220fsb = 440mhz ddr-----memtested 5 passes 2,7,3,3 w/ CPC and Turbo---5370's

223fsb = 446mhz ddr-----memtested 3 passes 2,7,3,3 w/ CPC and Turbo---5410's

226fsb = 452mhz ddr----memtested 3 passes 2,7,3,3 w/ CPC disabled No GAT----5450's

228fsb = 456mhz ddr----memtested 3 passes 2.5,7,3,3 No Gat-----5500's

230fsb = 460mhz ddr----memtested 3 passes 2.5,7,3,3 No GAT-----5590's

233fsb = 466mhz ddr----memtested 10 passes 2.5,7,3,3 No Gat----5660's

Check my review in cpu forum for testing on these chips at this speed....solid stabilty to get through all the test with no hiccups....

236fsb = 472mhz ddr----memtested 3 passes 2.5,8,3,3 NO Gat-----5680's

237fsb = 474mhz ddr----memtest froze 2nd pass (no cas timings helped or vcore boost, vdimm and vagp was maxed....board limitation)

238fsb = 476mhz ddr----no post!!!


Eva2000 not bad for the sticks, Huh????



If I could do the vdimm mod on this board I am sure these chips could go a bit further with 2.9-3v and still haven't used cas3 timings....

[Mikki]

Not bad at all...;) I'd like to see the results with more vdimm also...:):p

[Duvie]

Me too!!!! Anybody in the portland area want to do the vdimm mod for me who is handy (heck owns one) with a soldering gun????


I think at their current state it is clear they can do more with more voltage....Whether or not I could get it much past 140-144 to make it worth competing against my system at 3.2 or 3.25ghz with 250fsb but 5:4 ratio is totally different......

However if I can hammer them down a bit I am more inclined to try to run with a 2.4c M0 stepping or someones 2.4c@3.5ghz who may wish to sell one to me!!!

[Jojo1971]

the vdimm mod for the IC7 is actually a little bit harder compared to p4c800.. but it's doable..:).you might wanna try doing the PSU 3.3v mod by PilSy..

[Duvie]

Please link me to that Jojo......

[RotorHead]

hehe....

http://www.bleedinedge.com/guides/psu_3.3v_mod/psu_3.3v_mod_pg1.html

[shimmishim]

which reminds me... i was supposed ot write a review for doing the ic7 vdimm mod!!! oops... hehehe...

forgot about that... hahaha...

yeah, it's difficult because the work area that you have do the soldering in is VERY cramped...

i'm not a huge guy nor do i have huge hands but it was pretty tough getting the right amount of solder onto an area the size of ... a millimeter or so...

if the work area weren't so cramped.... it'd be A LOT easier to do... i found that soldering isn't too difficult... it's just soldering WELL and clean is difficult to do :)

[Duvie]

Eva, What do you thin of the memory??? Seems a little bit better then what you got with your sticks....I need more voltage but there is no way I am doing the volt mod so I will just have to wait until someone sells one....

I though maybe jump to the asus mobo, but I hear too many horror stories of ram compatability issues to want to mess with it...

[pastorjay]

I though maybe jump to the asus mobo, but I hear too many horror stories of ram compatability issues to want to mess with it... [/B]

IIRC, the Asus P4C800E is one of the best when it comes to compatability. THe first p4c800's were a little pickier though.

PJ

[Duvie]

Originally posted by pastorjay
IIRC, the Asus P4C800E is one of the best when it comes to compatability. THe first p4c800's were a little pickier though.

PJ

yeah but I have a guys pc4300 Buffalo stuff that on the asus p4c800e would only do 470ddr and I have had it do 515ddr on my board before I started to run into my cpu limit....

I may have to find someone with my memory modules to see if they run fine!!!

[pastorjay]

Ahh gotcha on that one. Someone out there has to have tried that combo...

PJ

[eva2000]

Originally posted by Duvie
Eva, What do you thin of the memory??? Seems a little bit better then what you got with your sticks....I need more voltage but there is no way I am doing the volt mod so I will just have to wait until someone sells one....

I though maybe jump to the asus mobo, but I hear too many horror stories of ram compatability issues to want to mess with it... well i try to as much stay away from putting my GEIL PC3500 memory in my systems - that's how much i feel about them particular GEIL PC3500 Ultra Platinum... but they do well with 3.1+ vdimm that's for sure

[Duvie]

Originally posted by eva2000
well i try to as much stay away from putting my GEIL PC3500 memory in my systems - that's how much i feel about them particular GEIL PC3500 Ultra Platinum... but they do well with 3.1+ vdimm that's for sure

Well I have them running plus 33mhz or pc3700 speeds with reasonable cas 2.5,8,3,3 with only 2.8v since my IC7 mobo does not have the vdimm mod.....I am not giving it 3.1 or I believe I could go further...Actually boot at 237fsb 1:1 but memtest errrors fast and 238fsb plain screams beep tone....cas 3 made no difference...

I have not even had to dump cas 3 timings since I run into the vdimm limitation sooner....


I don't see why the dislike or slamming of the memory...Maybe I got lucky or have a newer batch but these at least run at rated speed and specs and then quite a bit more for only a modest 2.8v....

[eva2000]

my 2x 256MB GEIL PC3500 Ultra dual channel can't do rated specs 217mhz at 2.5-3-3-6 or even 2.5-4-4-7 on IC7 max 2.8v and 4PCA3+ even at 3.3v couldn't do it!

only board it can do it on was PX865PE PRO2 at 2.85v

could of been bios related for IC7.. but the general consensus from other forums is GEIL PC3500 Ultra don't clock that high above spec unless 3+ vdimm is applied for P4 systems

When i asked GEIL support about my problem they said 2.5-3-3-6 is only if you run one stick if you run 2 for dual channel i need to set to 2.5-4-4-8 at 2.85v

I'm talking about at least 200 passes of memtest # 3, 4, 6 and 400 passes of #5 and 10 passes of #10

3 - 10 passes of memtest isn't enough to guage memory stability or faults

[Duvie]

Originally posted by eva2000
my 2x 256MB GEIL PC3500 Ultra dual channel can't do rated specs 217mhz at 2.5-3-3-6 or even 2.5-4-4-7 on IC7 max 2.8v and 4PCA3+ even at 3.3v couldn't do it!

only board it can do it on was PX865PE PRO2 at 2.85v

could of been bios related for IC7.. but the general consensus from other forums is GEIL PC3500 Ultra don't clock that high above spec unless 3+ vdimm is applied for P4 systems

When i asked GEIL support about my problem they said 2.5-3-3-6 is only if you run one stick if you run 2 for dual channel i need to set to 2.5-4-4-8 at 2.85v

I'm talking about at least 200 passes of memtest # 3, 4, 6 and 400 passes of #5 and 10 passes of #10

3 - 10 passes of memtest isn't enough to guage memory stability or faults

No kiddin!!! So I ran 300 passes of test #5 awhile ago and did it with this buffalo ram I have doing 510ddr....I let it run full memtest with cache on and all test for 24 hours last weekend....So don't tell me what is stable....


Well you had crap memory cause my specs stated cas 2,3,3,7 at 433mhz not no cas 2.5 and I bought them in a dual channel pack with 2x512mb sticks...So I don't think we are talking about the same memory here...I think you have limited esting of them and wrote them off to fast...i think you need to have several sticks to act as if this was some real state of the memory chip....

How about I pull some numbers out of my arse...you need to buy and test 10 different pairs to make those ASSumptions!!!!

[eva2000]

Originally posted by Duvie
No kiddin!!! So I ran 300 passes of test #5 awhile ago and did it with this buffalo ram I have doing 510ddr....I let it run full memtest with cache on and all test for 24 hours last weekend....So don't tell me what is stable....


Well you had crap memory cause my specs stated cas 2,3,3,7 at 433mhz not no cas 2.5 and I bought them in a dual channel pack with 2x512mb sticks...So I don't think we are talking about the same memory here...I think you have limited esting of them and wrote them off to fast...i think you need to have several sticks to act as if this was some real state of the memory chip....

How about I pull some numbers out of my arse...you need to buy and test 10 different pairs to make those ASSumptions!!!!

whoops forgot.. mine are 2x 256MB GEIL PC3500 ultra platinum dual channel @ 2-3-3-6 http://www.fileshosts.com/memory/geil/pc3500dual/256/geil_pc3500dual05.html

and GEIL web site says 2-3-3-6 too at

http://www.geil.com.tw/portal/product_433_t_dc.php
and
http://www.geilusa.com/proddetail.asp?linenumber=27

so you're right yours aren't the same memory as mine since GEIL web site and mine says 2-3-3-6 and not 2-3-3-7

and here's the pdf capture of the GEIL support forum thread http://www.fileshosts.com/memory/geil/support/pc3500udc.PDF

alot of threads related to this memory and it's problems were wiped from their old forums

[Duvie]

You bought them in a dual pack??? Why would any tech person tell you if you ran them in dual you needed cas 2.5??? It clearly states the specs is for them to run dual channel (the 2 included sticks) at cas 2,3,3,7...It might have said 2,3,3,6 but I am certain it was cas 2 or I wouldn't have spent the money on them.

I know the ns rating on them was less then the golden dragon series but I never really intended to run 1:1 anyways and I wanted to keep cost down...I didn't like the dragons cause I didn't see heat spreaders on them and I thought that logic was flawed....

You got a bad pair of sticks...You tried each individualy as well??? I get no better with each individually but then again it is clear on my board I am running up against the vdimm limitations...