AMD 900 overclock?

[tdm5032c]

More experimenting. Set voltage down from 1.8 to 1.75 and it runs at about the same speed (1035 Mhz), but CPU runs about 5 degrees cooler at 98 degrees. Still runs almost more stable than when CPU was run at stock 900 Mhz. Pretty cool. Are there any longterm effects from overclocking this CPU? Should I go even lower voltage and see what happens? If anyone knows, I would appreciate the info. Thanks for your time.

Tracy

P.S. System seems to run very stable even with voltage down to 1.7 Volts and temps run cooler. When I have voltage set to 1.7 on MOBO switches, USDM in windows shows 1.75. Why the difference? Also, what is normal temps the classic Athlon should be running at? It just gives a range in manual.

Athlon Slot A 900 @1035MHz @ 1.7 V
Epox 7KXA Motherboard
128 MB PC150 Kingmax mem.

[Kenshin]

For me, I have to keep the voltage up. One problem I've experienced is that the os will run fine and Office apps run fine even C++ compilers run fine but when I play games like Starfleet Command II and Rouge Spear, computer crashes constantly. But with Voltage up, cooling is a big prob. I'm struggling to keep my cpu cool.

AMD Tbird 800@1,029 1.98v
ASUS A7V w/voltage mod
ATI Radeon 64DDR
256 Crucial Memory PC133
Win2k Pro

[Murphy]

tdm5032c (Feb 13, 2001 12:21 a.m.):
More experimenting. Set voltage down from 1.8 to 1.75 and it runs at about the same speed (1035 Mhz), but CPU runs about 5 degrees cooler at 98 degrees. Still runs almost more stable than when CPU was run at stock 900 Mhz. Pretty cool. Are there any longterm effects from overclocking this CPU? Should I go even lower voltage and see what happens? If anyone knows, I would appreciate the info. Thanks for your time.

Tracy

I just want to remind you that a athon classic and a athlon Tbird are two different things, the way they behave, the way they overclock! Lowering your voltage isn't going to increase your odd's on overclocking an athlon classic. It's just that AMD gives them enough headroom for power. My athlon 500 did 1.4V instead of 1.6V perfectly stable, but it didn't make overclocking better.

According to the speed you are running right now, you must have set your FSB to 115MHz, an honourable result! Most of the mobo's won't go that high, mine went 107 and that was it! There are no longterm effects of lowering voltage or increasing total MHz, but there ARE on increasing FSB. Some of the harddisk's in ultra-DMA mode mess up add higher FSB speeds and go corrupted. Be sure to make backups once in a while and keep valuble data at other stored media. Wether you want to increas FSB depends mostly on what your PC is used for. Just gaming or running SETI will do fine, but having much office work, mp3's and pictures could be risky if you ask me.

If you are willing to crack open your athons case or are prepared to saw a little hole for a goldfinger device, it's certainly worth the efford. Maximum multiplyer on slot-A is 10,5x, just to rimind you you can't get 1200 by setting a multiplyer to 12x as someone mentioned before. Could be done by 10.5x and 115FSB, but believe me as I tell you your system won't do that, only when you cool you CPU and CHIPSET(!) agressively on increased voltage.

So if you consider purchasing a GFD, think of the effect of increasing FSB or multiplyer first and what you use your PC for. And remember to keep your CPU well cooled, high MHz requires good cooling! Happy OC'ing!

[wingzero]

tracy, can you tell me exactly what settings you changed? i got my 900 up to 968 just by bumping up the FSB, but i am unsure about which voltage settings to alter to get some more power out of it, i got the athlon 900 with an A7V mobo. I appreciate it!

[tdm5032c]

I set the CPU Host Clock (CPU/PCI) to 115/38 Mhz on my board and originally left the CPU voltage at 1.8 Volts. It ran rock solid and stable with no problems except temperature was about 104. I lowered the voltage in increments down to 1.7 Volts and it still ran perfectly, but temperature was about 10 degrees cooler. I have run every application I have loaded and it performs flawlessly. Even graphics intense programs run perfectly at lower voltage settings. I am really impressed with the Epox 7KXA board. I also have the Kingmax PC150 memory installed. I think that really helps. I am getting 1035 Mhz solid with it. Who needs a goldfinger device? Not me. SIS Sandra reports processor as 1032 Mhz. I hope this helps.

Tracy