pc800 to pc1086 issues

p0b0y · 06-10-2002, 11:41 AM

Ok, i have an abit th7-2 mobo with a 1.8a@2.4 and the fsb is 134.
The system runs rock solid at that but the ram is underclocked at 300mhz so it acutally runs at 400mhz. I want to run it at 533mhz but my system locks all the time after prolonged use. I put an 80mm fan over the ram so I dont think its due to heat. They are two 128mb samsung and two 256mb samsung rimms, both having the blue heat spreaders. Any ideas?

eX&TriC · 06-10-2002, 03:14 PM

voltage mod with a 50KOhm pot
its the same voltage regulator chip as the KG7
just do a google search

mine did 120 x 4 at 2.5V
now it does 137 x 4 at 2.8V

p0b0y · 06-10-2002, 04:49 PM

ok, did a search but it came out empty
got some linkage?

eX&TriC · 06-10-2002, 04:53 PM

http://hwfaq.overclockersonline.com/dbase.php?catid=12

use google.com and type "vmod KG7"
very difficult

p0b0y · 06-10-2002, 05:16 PM

well, its an abit th7-2 mobo and the kg7 wouldnt have gotten me far.......
but many thanks

Brad · 06-12-2002, 02:21 AM

as he just said, they use the same Vram chip. Also consider that you might want to try running two sticks at once instead of all 4 sticks

p0b0y · 06-12-2002, 08:33 AM

should i use the 256mb sticks cuz they are double sided?

Brad · 06-12-2002, 01:33 PM

try the 2x256, then try the 2x128 just to give them each a go, and see what happens

p0b0y · 06-14-2002, 08:37 AM

aw, still no good
you think if i just bought some 1066 that that would solve my o/c problems?

ambient · 06-14-2002, 09:47 AM

have you checked the mounting of the NB heatsink? It could be loose and or not making good contact.

p0b0y · 06-14-2002, 06:27 PM

naw, the temps are good at 133fsb(35c full load)

Brad · 06-15-2002, 04:55 AM

what drcg's do you have in there?

p0b0y · 06-15-2002, 08:05 AM

the originals, kinda scary to change them

Brad · 06-15-2002, 04:00 PM

i'd say that because you get 256mb and 128mb sticks to the exact same speed, it is your drcg's that are failing. try adding some heatsinks to them, and see what you get

p0b0y · 06-16-2002, 12:00 PM

ill have to try that, cuz my system will boot, but i get general system instability, you know, dropping to windows whenever i do something besides surf

gone_fishin · 06-16-2002, 01:02 PM

Which bios are you running? Mr Naturals TH7H_7D is what I use. He has all of his bios posted here, http://www.n3dt.com/drivers/bios/abit/th7ii/

Also I suggest only running the two single sided rdram sticks in the slots closest to the cpu and have your fan blow onto the sticks as well as the drcgs which are very close by, put the fan close to them. What is the date marking on the memory?
Older sticks don't overclock that good to PC1066. Mine say Samsung Korea 0151 which means week 51 of the year 2001.

p0b0y · 06-17-2002, 10:13 AM

id have to looksy, but ill get some heatsinkage on the drcg's

06-10-2002, 11:41 AM	#1
p0b0y Cooling Neophyte Join Date: Mar 2002 Location: Atlanta Posts: 97	pc800 to pc1086 issues Ok, i have an abit th7-2 mobo with a 1.8a@2.4 and the fsb is 134. The system runs rock solid at that but the ram is underclocked at 300mhz so it acutally runs at 400mhz. I want to run it at 533mhz but my system locks all the time after prolonged use. I put an 80mm fan over the ram so I dont think its due to heat. They are two 128mb samsung and two 256mb samsung rimms, both having the blue heat spreaders. Any ideas?

06-10-2002, 03:14 PM	#2
eX&TriC Cooling Neophyte Join Date: Oct 2001 Location: Belgium (center of the universe) Posts: 51	voltage mod with a 50KOhm pot its the same voltage regulator chip as the KG7 just do a google search mine did 120 x 4 at 2.5V now it does 137 x 4 at 2.8V __________________ P4 1.8A @ 2.4 - 256MB PC1066 - GF4 355/780 Peltchilled-

06-10-2002, 04:53 PM	#4
eX&TriC Cooling Neophyte Join Date: Oct 2001 Location: Belgium (center of the universe) Posts: 51	http://hwfaq.overclockersonline.com/dbase.php?catid=12 use google.com and type "vmod KG7" very difficult __________________ P4 1.8A @ 2.4 - 256MB PC1066 - GF4 355/780 Peltchilled-

06-12-2002, 02:21 AM	#6
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	as he just said, they use the same Vram chip. Also consider that you might want to try running two sticks at once instead of all 4 sticks __________________ 2x P3 1100's at 1400, Abit VP6, 2x Corsair 256mb PC150 sticks, 20gb 'cuda ATA-III, 2x 40gb 'cuda ATA-IV in raid 0. 20" Trinitron. No fans 2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water

06-12-2002, 01:33 PM	#8
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	try the 2x256, then try the 2x128 just to give them each a go, and see what happens __________________ 2x P3 1100's at 1400, Abit VP6, 2x Corsair 256mb PC150 sticks, 20gb 'cuda ATA-III, 2x 40gb 'cuda ATA-IV in raid 0. 20" Trinitron. No fans 2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water

06-10-2002, 04:49 PM	#3
p0b0y Cooling Neophyte Join Date: Mar 2002 Location: Atlanta Posts: 97	ok, did a search but it came out empty got some linkage?

06-10-2002, 05:16 PM	#5
p0b0y Cooling Neophyte Join Date: Mar 2002 Location: Atlanta Posts: 97	well, its an abit th7-2 mobo and the kg7 wouldnt have gotten me far....... but many thanks

06-12-2002, 08:33 AM	#7
p0b0y Cooling Neophyte Join Date: Mar 2002 Location: Atlanta Posts: 97	should i use the 256mb sticks cuz they are double sided?

06-14-2002, 08:37 AM	#9
p0b0y Cooling Neophyte Join Date: Mar 2002 Location: Atlanta Posts: 97	aw, still no good you think if i just bought some 1066 that that would solve my o/c problems?

06-14-2002, 09:47 AM	#10
ambient Cooling Savant Join Date: Jan 2002 Location: Planet Earth Posts: 312	have you checked the mounting of the NB heatsink? It could be loose and or not making good contact. __________________ water cooled 1.4 tbird @ 1580 143x11 vcore 1.88 vio 3.55

06-14-2002, 06:27 PM	#11
p0b0y Cooling Neophyte Join Date: Mar 2002 Location: Atlanta Posts: 97	naw, the temps are good at 133fsb(35c full load)

06-15-2002, 04:55 AM	#12
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	what drcg's do you have in there? __________________ 2x P3 1100's at 1400, Abit VP6, 2x Corsair 256mb PC150 sticks, 20gb 'cuda ATA-III, 2x 40gb 'cuda ATA-IV in raid 0. 20" Trinitron. No fans 2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water

06-15-2002, 08:05 AM	#13
p0b0y Cooling Neophyte Join Date: Mar 2002 Location: Atlanta Posts: 97	the originals, kinda scary to change them

06-15-2002, 04:00 PM	#14
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	i'd say that because you get 256mb and 128mb sticks to the exact same speed, it is your drcg's that are failing. try adding some heatsinks to them, and see what you get __________________ 2x P3 1100's at 1400, Abit VP6, 2x Corsair 256mb PC150 sticks, 20gb 'cuda ATA-III, 2x 40gb 'cuda ATA-IV in raid 0. 20" Trinitron. No fans 2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water

06-16-2002, 12:00 PM	#15
p0b0y Cooling Neophyte Join Date: Mar 2002 Location: Atlanta Posts: 97	ill have to try that, cuz my system will boot, but i get general system instability, you know, dropping to windows whenever i do something besides surf

06-16-2002, 01:02 PM	#16
gone_fishin Cooling Savant Join Date: May 2002 Location: Da UP Posts: 517	Which bios are you running? Mr Naturals TH7H_7D is what I use. He has all of his bios posted here, http://www.n3dt.com/drivers/bios/abit/th7ii/ Also I suggest only running the two single sided rdram sticks in the slots closest to the cpu and have your fan blow onto the sticks as well as the drcgs which are very close by, put the fan close to them. What is the date marking on the memory? Older sticks don't overclock that good to PC1066. Mine say Samsung Korea 0151 which means week 51 of the year 2001. Last edited by gone_fishin; 06-16-2002 at 01:07 PM.

06-17-2002, 10:13 AM	#17
p0b0y Cooling Neophyte Join Date: Mar 2002 Location: Atlanta Posts: 97	id have to looksy, but ill get some heatsinkage on the drcg's

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